ESS TECHNOLOGY INC
10-K, 1999-03-31
SEMICONDUCTORS & RELATED DEVICES
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                                 UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                            ------------------------
 
                                   FORM 10-K
(MARK ONE)
 
      [X]   ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
            EXCHANGE ACT OF 1934
 
                  FOR THE FISCAL YEAR ENDED DECEMBER 31, 1998
                                       OR
 
      [ ]   TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
            EXCHANGE ACT OF 1934
 
          FOR THE TRANSITION PERIOD FROM             TO             .
 
                         COMMISSION FILE NUMBER 0-26660
                            ------------------------
 
                              ESS TECHNOLOGY, INC.
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
 
<TABLE>
<S>                                            <C>
                 CALIFORNIA                                     94-2928582
       (STATE OR OTHER JURISDICTION OF                       (I.R.S. EMPLOYER
       INCORPORATION OR ORGANIZATION)                       IDENTIFICATION NO.)
 
  48401 FREMONT BLVD., FREMONT, CALIFORNIA                         94538
  (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)                      (ZIP CODE)
</TABLE>
 
              REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE:
                                 (510) 492-1088
 
          SECURITIES REGISTERED PURSUANT TO SECTION 12(B) OF THE ACT:
                                      NONE
 
          SECURITIES REGISTERED PURSUANT TO SECTION 12(G) OF THE ACT:
                           COMMON STOCK, NO PAR VALUE
                                (TITLE OF CLASS)
 
    Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days.  Yes [X]  No [ ]
 
    Indicate by check mark if disclosure of delinquent filers pursuant to Item
405 of Regulation S-K is not contained herein, and will not be contained, to the
best of the registrant's knowledge, in definitive proxy or information
statements incorporated by reference in Part III of this Form 10-K or any
amendment to this Form 10-K.  [ ]
 
    State the aggregate market value of the voting and non-voting common equity
held by non-affiliates of the registrant, based upon the closing sale price of
the Common Stock on January 31, 1999 ($6.875) as reported on the Nasdaq National
Market, was approximately $160,508,000. Shares of Common Stock held by each
officer and director and by each person who owned 5% or more of the registrant's
outstanding Common Stock on that date have been excluded in that such persons
may be deemed to be affiliates. This determination of affiliate status is not
necessarily a conclusive determination for other purposes.
 
    As of January 31, 1999, registrant had outstanding 40,863,083 shares of
Common Stock.
                            ------------------------
 
                      DOCUMENTS INCORPORATED BY REFERENCE
 
    Portions of the Proxy Statement for Registrant's 1999 Annual Meeting of
Shareholders are incorporated by reference in Part III.
 
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                              ESS TECHNOLOGY, INC.
                                 1998 FORM 10-K
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                         PAGE
                                                                         ----
<S>        <C>                                                           <C>
                                   PART I
Item 1.    Business....................................................    2
Item 2.    Properties..................................................   11
Item 3.    Legal Proceedings...........................................   11
Item 4.    Submission of Matters to a Vote of Security Holders.........   11
 
                                   PART II
Item 5.    Market for the Registrant's Common Equity and Related
           Shareholder Matters.........................................   12
Item 6.    Selected Financial Data.....................................   13
Item 7.    Management's Discussion and Analysis of Financial Condition
           and Results of Operations...................................   14
Item 7A.   Quantitative and Qualitative Disclosures About Market
           Risk........................................................   24
Item 8.    Financial Statements and Supplementary Data.................   24
Item 9.    Changes in and Disagreements with Accountants on Accounting
           and Financial Disclosure....................................   43
 
                                  PART III
 
Item 10.   Directors and Executive Officers of the Registrant..........   44
Item 11.   Executive Compensation......................................   45
Item 12.   Security Ownership of Certain Beneficial Owners and
           Management..................................................   45
Item 13.   Certain Relationships and Related Transactions..............   45
 
                                   PART IV
 
Item 14.   Exhibits, Financial Statement Schedules, and Reports on Form
           8-K.........................................................   46
 
Signatures.............................................................   48
</TABLE>
 
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     Statements contained in this filing that are not statements of historical
fact may be deemed to be forward-looking statements. A number of important
factors could cause actual events or the Company's actual results to differ
materially from those indicated by such forward-looking statements, including
dependence on continued growth in demand for Internet, PC audio, video and other
multimedia capabilities for notebook and desktop computers, as well as consumer
electronic and Internet products; the Company's ability to take advantage of new
markets; increased competition and pricing pressures, general economic
conditions and conditions specific to the semiconductor industry; the timing and
market acceptance of new product introductions; the timely development of new
products; continued availability of quality foundry capacity; and other risks
set forth in this filing and in the Company's filings from time to time with the
Securities and Exchange Commission.
 
                                     PART I
 
ITEM 1. BUSINESS
 
     ESS Technology, Inc. and its subsidiaries ("ESS" or the "Company") designs,
markets and supports highly integrated mixed signal semiconductor, hardware,
software and system solutions for multimedia applications in the Internet,
personal computer ("PC") and consumer marketplaces. The Company offers
comprehensive solutions for audio, video and modem applications. ESS has
established itself as a leading supplier in both mixed-signal PC audio solutions
that integrate all essential audio components on a single chip and Video CD
solutions ("VCD"). During 1998, ESS continued to strengthen its core family of
ISA and PCI audio solutions as well as its video and modem solutions. The
Company was incorporated in California in 1984.
 
  AudioDrive Products
 
     ESS' single chip AudioDrive products enable PC manufacturers to provide
audio capabilities on add-in sound cards and directly on the motherboards of
desktop and notebook computers. The Company has established itself as a leader
in integrated audio solutions and counts many of the leading manufacturers of
personal computers and sound cards among its customers.
 
     During 1998, the manufacturers in the PC market began to shift from ISA
solutions to PCI solutions due to the higher performance which the PCI solutions
provide to meet the demands for advanced PC audio applications.
 
     The Company's AudioDrive products are based on ESS' audio technologies,
design methodologies, and software and firmware expertise. ESS has developed a
proven set of ISA and PCI product solutions for the PC market.
 
     The AudioDrive ISA and PCI product families integrate ESFM(TM), a
proprietary FM sound synthesis technology, that produces superior sound quality
by enhancing traditional FM synthesis techniques, with hardware, software and
music database technology. ESS also utilizes its proprietary advanced analog and
mixed signal design methodologies, together with its library of audio
semiconductor designs, to produce highly integrated mixed signal audio chips.
ESS software technology is bundled as part of its comprehensive solution and
consists of its AudioDrive device drivers for Microsoft(R) Windows(R)3.1,
Windows NT(R), Windows 95(R), Windows 98(R), IBM OS/2(R)Warp(R), DirectX(TM)PC
games, and audio applications, including ESS AudioRack(TM) controller, an
integrated graphical controller for the entire PC audio system.
 
  ISA AudioDrive Products
 
     ES692: a wavetable music synthesizer chip. The ES692 includes reverb
special effects without need for external RAM. With its embedded
microcontroller, the ES692 supports General MIDI, providing for 128 melodic
instruments with ability to play back 32 voices of 16-bit data at a sampling
rate of 44.1kHz. Music is produced in high fidelity with the realism of a live
symphony orchestra. The ES692 includes a 1MB wavetable ROM to provide a complete
wavetable solution. This internal ROM provides digitally recorded sound samples
of musical instruments.
 
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     ES1869: a single mixed signal 16-bit stereo audio chip with integrated ESFM
synthesizer, plug-and-play, full-duplex operation, Zoom Video support, game
support and three-dimensional sound effect. The ES1869 integrates digital logic
and a microcontroller with audio CODEC and other analog functions onto one chip,
and includes ESFM synthesis. The ES1869 is PC games compatible in SB and SB Pro
modes and is compatible with Microsoft Windows and other operating systems. The
ES1869 provides full ISA plug-and-play support and includes hardware volume
control, 64 step volume control and dual game/joystick port for game support.
The ES1869 supports full-duplex operation with simultaneous record and playback
with two DMA channels and contains an I2S interface to support Zoom Video port
for MPEG audio. It also integrates circuitry to produce a three-dimensional
sound effect from two speakers.
 
     ES1879: a single mixed signal 16-bit stereo audio chip with integrated ESFM
synthesizer, full-duplex operation, Zoom Video support, telegaming and game
support and three-dimensional sound effect. The ES1879 combines the features of
the ES1878 with I2S interface for Zoom Video support, as well as circuitry to
produce three-dimensional sound effect from two speakers. The ES1879 provides
full plug-and-play support and provides interface to a docking station unit.
 
  PCI AudioDrive Products
 
     ES1918: Maestro PCI audio CODEC. The ES1918 is a single mixed signal AC '97
CODEC and mixer for a digital audio controller. The ES1918 meets PC '98 and
Audio CODEC '97 Rev. 1.03 specifications.
 
     ES1920: Maestro PCI audio CODEC. The ES1920 is a single mixed signal AC '97
CODEC and mixer for a digital audio controller. The ES1920 meets AC '98 and
Audio CODEC '97 Rev. 2.0 specifications.
 
     ES1938: Solo-1: a PCI single mixed signal audio chip. The ES1938 provides a
single chip PCI audio solution providing high-quality audio processing while
maintaining full legacy DOS game compatibility. The ES1938 has 16-bit stereo
with 7 channel record and playback mixers and an integrated 3-D sound effects
processor. It supports ACPI, PPMI and PCI Mobile Design Guide specifications.
 
     ES1946: Solo-1E: a PCI single mixed signal audio chip with I(2)S
interface. The ES1946 combines the features of the ES1938 with I(2)S interface
for ZOOMED Video Port audio and 3.3 Volt digital supply operation.
 
     ES1948: Maestro-1: a PCI digital audio accelerator. The Maestro-1 provides
enhanced audio, utilizing the additional bandwidth provided by the PCI bus and
taking advantage of the Intel AC-97 architecture. The Maestro-1 implements
positional 3D and 64 channel hardware wavetable using system memory to
dramatically improve the multimedia gaming experience. The Maestro-1 uses ESS
proprietary technology called TDMA to provide legacy compatibility for DOS games
which is a requirement for multimedia PCs.
 
     ES1968: Maestro-2: a PCI digital audio accelerator. The Maestro-2 provides
enhanced audio, utilizing the additional bandwidth provided by the PCI bus and
taking advantage of the Intel AC-97 architecture. The Maestro-2 implements
positional 3D using CRL's Digital Ear(TM) and Sensaura(TM) 3D audio technology
to dramatically improve the multimedia gaming experience. The Maestro-2
implements 64 channel hardware wavetable using system memory to reduce size,
cost and host utilization while increasing sound quality for MIDI. The Maestro-2
utilizes ACPI and small form factor to enable low power designs for notebooks
and motherboards. The Maestro-2 also uses ESS proprietary technology, TDMA to
provide legacy compatibility for DOS games, a requirement for multimedia PCs.
 
     ES1968M: Maestro-2M: a PCI audio/modem combo solution. The Maestro-2M
provides the features of the Maestro-2 with a parallel modem interface to a
modem DSP processor.
 
     ES1978: Maestro-2E: A PCI digital audio accelerator. The Maestro-2E
provides the features of the Maestro-2 with an EEPROM interface for system
configuration and S/PDIF output for interface to consumer stereo equipment.
 
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<PAGE>   5
 
     ES1978M: Maestro-2EM: a PCI audio/modem combo solution. The Maestro-2EM
provides the features of the Maestro-2E in a 144 pin TQFP package with a
parallel modem interface to a modem DSP processor.
 
  TeleDrive Products
 
     Internet-related applications, such as voice e-mail, Internet radio, audio
home pages, and news on demand, are increasing the demand for integrated audio
and computer fax/modem functions on the personal computer. ESS TeleDrive
products enable PC manufacturers to provide fax/modem capabilities to add-on
cards and directly onto the motherboards of desktop and notebook PCs.
 
     ES336V: a V.34bis chipset data/fax/voice controller-less modem
solution. The ES336V provides base data, full duplex speaker phone, telephone
answer machine and V.80 support for H.324 video conferencing applications.
 
     ES56V: a V.90 chipset data/fax/voice controller-less modem solution. The
ES56V is a superset of the ES336V and is compliant with the V.90 worldwide modem
standard via proprietary software.
 
     ES56CVH: a ES56V modem solution with 16 or 32 bit full duplex stereo. The
ES56CVH combines the ES56V modem solution with a single mixed signal 16 or 32
bit stereo audio chip with integrated ESFM synthesizer, plug-and-play
full-duplex operation and game support.
 
  VideoDrive Products
 
     ESS VideoDrive products provide consumer original equipment manufacturers
("OEMs") of VCD, SuperVCD ("SVCD") and DVD players with total programmable
system solutions. The VideoDrive products provide OEMs of VCD players with a
programmable single-chip processor which includes MPEG-1 video, audio and system
decoder. It delivers full-screen, full-motion video at 30 frames per second with
selectable CD-quality audio and can be combined with memory and video/audio
DACs. The products also provide OEMs of SVCD and DVD players with a programmable
single chip processor which includes MPEG-2 audio/video/system and transport
layer decoder and video post-processing. In addition, the MPEG-2 decoder also
integrates Dolby AC-3 and Navigation Software for DVD players. These chips are
designed for a variety of applications in consumer electronics such as Internet
set-top boxes, SVCD and DVD players.
 
  VCD Player Products
 
     ES3207: Analog companion chip. The ES3207 provides echo, surround sound, 3D
audio, TV encoder with clock generation and audio DAC functions.
 
     ES3209: Analog companion chip to VCD processor chip. The ES3209
incorporates the ES3207 features of echo, surround sound, 3D audio, TV encoder
with clock generation, audio DAC functions with HTML, hyperlink and a graphic
user interface.
 
     ES3210: Single chip programmable VCD processor which includes MPEG-1
audio/video/system decoder for use in standalone and portable VCD players. The
ES3210 is a single chip that supports MPEG-1 video decoding and incorporates
on-screen display, Karaoke functions, programmable playback control, trick play
mode features, an integrated SRAM and remote control interface logic in a
smaller form factor allowing a more compact design.
 
     ES3211: Arcade accelerator. The ES3211 enables direct interface with
external games controllers to allow CD-ROM games to be played on a VCD player.
 
     ES3880: Single chip programmable VCD processor. The ES3880 incorporates the
ES3210 features and functions with improved video quality.
 
     ES3883: Analog companion chip. The ES3883 replaces the ES3707 and ES3209
with the same features and functions.
 
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     ES4108: Single chip programmable SVCD processor which include MPEG-2 video
and MPEG-1 audio. The ES4108 incorporates on-screen display, Karaoke functions,
programmable playback control, trick play mode features, integrated remote
control interface logic and a direct CD loader interface for small form factor
and cost effective design.
 
  DVD Player Products
 
     ES3301: Audio/video Transport Demultiplexer and Descrambler. The ES3301 is
a transport-layer demultiplexer, parser and descrambler designed for the set-top
box, DVD and Broadcast PC applications.
 
     ES3308: Single chip programmable DVD processor that includes MPEG-2
audio/video/system decoder for use in DVD players and digital set-top boxes. The
ES3308 is a single chip solution that supports MPEG-2 video decoding and
provides on-screen display and transport layer compliance with DVD standard as
well as Digital Broadcast Signal standards.
 
     ES4308: Single chip programmable DVD processor with integrated system
navagation software and direct DVD loader interface. ES4308 supports two
channels stereo down mix and incorporates the ES3308 features with the
integrated system navagation software and a direct DVD loader interface for a
smaller form factor and cost effective design. Currently sampling
 
     ES4408: Single chip programmable DVD processor with 5.1 channel Dolby
AC-3. The ES4408 incorporates the features of the ES3308 with support of 5.1
channel Dolby AC-3. Currently sampling
 
  Internet Set-Top Box Products
 
     ES4228: Single chip programmable SVCD and Internet set-top box
processor. ES4228 incorporates the ES4108 features with a graphic function and
flicker filter algorithm to enhance viewing quality on the television.
 
     ES4227: Analog companion chip. The ES4227 incorporates the ES3209 features
of echo, surround sound, 3D audio, TV encoder with clock generation, audio DAC
functions with HTML, hyperlink and a graphic user interface with a programmable
I/O interface to communicate with ES56V modem chip set.
 
  Software and Support
 
     ESS provides comprehensive support for its products including software that
can be bundled with its products. This software includes device drivers for
Microsoft(R) Windows(R) 3.1, Windows NT(R), Windows 95(R) and Windows 98(R), IBM
OS/2(R) Warp(R), Intel NSP and PC games, for PC products and systems support for
the Company's VCD and DVD products. Other support software that is available to
customers includes localization software and installation software that allows
customers to tailor their products for specific applications and needs.
 
     Customer development support includes an Evaluation Kit that contains a
reference add-in card design with all the necessary information to incorporate
an ESS chip in the customer's product. To assist customers in further reducing
their time to market, ESS also provides a Manufacturing Kit that contains
manufacturing information, including a bill-of-materials, printed circuit board
layout and production test software.
 
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CUSTOMERS
 
     ESS sells its products principally to OEMs of PCs, PC-related add-in boards
and consumer electronics systems. The Company sells its product through a direct
sales force, distributors and manufacturer representatives. The following table
shows representative customers worldwide:
 
<TABLE>
<CAPTION>
HONG KONG     UNITED STATES      TAIWAN    JAPAN(1)   REST OF THE WORLD
- ---------     -------------      ------    --------   -----------------
<S>         <C>                 <C>       <C>         <C>
Dynax(2)    Compaq              Acer      Fujitsu     Hyundai
Weikeng(2)  Dell                BTC       Hitachi     Multiwave
Shinco      Hewlett Packard     FIC       Matsushita  Philips
            IBM                 GVC       NEC         Pineview
            Micron              Inventec  Sanyo       Samsung
                                Labway    Sony        Trigem
                                Mitac                 Wearnes
                                Quanta
</TABLE>
 
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(1) Sales in Japan are made through a distributor.
 
(2) Distributors of the Company.
 
     A limited number of customers have historically accounted for a substantial
portion of the Company's net revenues. In 1996, 1997 and 1998, sales to the
Company's top five customers, including sales to its international distributors,
accounted for approximately 40%, 49% and 54%, respectively, of the Company's net
revenues. In 1996, Compaq and Universe Electron Corporation each accounted for
approximately 12% and 13%, respectively, of the Company's net revenues. In 1997,
Eastbase and Dynax, a Hong Kong distributor, each accounted for approximately
13% of the Company's net revenues. In 1998, Dynax and Shinco accounted for
approximately 16% and 15%, respectively, of the Company's net revenues. The
Company expects that a limited number of customers may continue to account for a
substantial portion of its net revenues for the foreseeable future. The Company
has experienced changes from year to year in the composition of its major
customer base and believes this will continue in the future.
 
SALES AND MARKETING
 
     The Company sells and markets to leading PC and consumer OEM's worldwide.
The Company markets its products through its direct sales force, distributors
and manufacturer representatives.
 
     In 1996, 1997 and 1998, international sales comprised approximately 92%,
89% and 92% of the Company's net revenues, respectively. The Company's
international revenues in 1996, 1997 and 1998 have been derived primarily from
Asian customers who manufacture PCs, PC-related add-in boards and consumer OEM's
of VCD players. A large percentage of the worldwide supply of these products is
manufactured by suppliers in Asia. ESS has direct sales personnel and technical
staff located in Taiwan. A significant portion of the Company's Asian sales have
been to customers located in Taiwan. See "Factors That May Affect Future
Results -- International Operations." The Company's products are also sold
internationally through distributors and manufacturer representatives located in
Hong Kong, Taiwan, Japan, India, Singapore, Korea and Germany. The Company's
manufacturer representatives and distributors are not subject to minimum
purchase requirements and can discontinue marketing any of the Company's
products at any time. In addition, certain of the Company's manufacturer
representatives, distributors and customers typically are authorized certain
rights of return for unsold product or pricing allowances to compensate for
rapid, unexpected prices changes. See "Factors That May Affect Future
Results -- Customer Concentration."
 
     The Company believes that customer service and technical support are
important competitive factors in selling to major customers. The Company
provides technical support to its customers. Manufacturer representatives and
distributors supplement the Company's efforts by providing additional customer
service at the local level. The Company believes that close contact with its
customers not only improves the customers' level of satisfaction, but also
provides important insight into future market direction.
 
     Sales of the Company's products are generally made pursuant to standard
purchase orders, which are frequently revised to reflect changes in the
customer's requirements. Product deliveries are scheduled upon the
 
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<PAGE>   8
 
Company's receipt of purchase orders. Generally, these purchase orders allow
customers to reschedule delivery dates and cancel purchase orders without
significant penalties. For these reasons, the Company believes that its backlog,
while useful for scheduling production, is not necessarily a reliable indicator
of future revenues. See "Factors That May Affect Future Results -- Potential
Fluctuations in Operating Results."
 
RESEARCH AND DEVELOPMENT
 
     In order to compete successfully, the Company believes that it must
continually design, develop and introduce new products that take advantage of
market opportunities and address emerging technical standards. The Company's
strategy is to leverage its base of design expertise, analog, digital and mixed
signal design capabilities and process technologies, and software and systems
expertise to develop audio, modem and video solutions for the Internet, PC and
consumer marketplace. ESS has in the past acquired and in the future will
consider acquiring technology and product lines to enhance its own product
offerings and to accelerate its time-to-market. The Company intends to continue
to provide comprehensive solutions for its customers by developing state of the
art semiconductor chips, device drivers, firmware and application software in
its chosen markets.
 
     ESS utilizes a design environment based on workstations, dedicated product
simulators, system simulation with hardware and software modeling, and a high
level design description language. The Company invests regularly in new advanced
equipment and software tools and intends to maintain and enhance its library of
core cells.
 
     At December 31, 1998, ESS had a staff of 185 research and development
personnel, 67 of which were involved in semiconductor design and process
development and 118 of which were involved in software development. In addition,
ESS has engaged outside developers to develop certain technologies to the
Company's specifications and intends to continue to utilize outside developers
in the future. During 1996, 1997 and 1998 the Company spent approximately $20.3
million, $29.5 million and $30.5 million, respectively, on research and
development activities, excluding a one-time pre and post-tax charge of $30.4
million related to acquired research and development in-process from the
acquisitions of VideoCore Technology, Inc. ("VideoCore") and OSEE Technology,
Inc. ("OSEE") in the first quarter of 1996 and a one-time pre and post-tax
charge of $22.2 million related to acquired research and development in-process
from the acquisition of Platform Technologies, Inc. ("Platform") in the second
quarter of 1997.
 
     In June 1997, the Company completed its acquisition of Platform pursuant to
which the Company acquired all the outstanding capital stock of Platform in
exchange for approximately 2.54 million shares of the Company's Common Stock
including approximately 954,000 options with a value of $32.7 million. Platform
is a wholly-owned subsidiary of the Company. The acquisition of Platform
provided the Company with certain PCI audio expertise and designs in process,
along with significant engineering talent. In January 1996, the Company
completed its acquisition of VideoCore pursuant to which the Company acquired
all of the outstanding capital stock of VideoCore in exchange for approximately
525,000 shares of the Company's Common Stock and $5.7 million in cash.
VideoCore, a wholly owned subsidiary of the Company, is developing integrated
circuits which incorporates advanced compression technology for digital video
products. In March 1996, the Company completed its acquisition of OSEE pursuant
to which the Company acquired all of the outstanding capital stock of OSEE in
exchange for approximately 217,000 shares of the Company's Common Stock and $3.6
million in cash. Also outstanding stock options of OSEE were exchanged for
85,000 stock options of the Company. OSEE, a wholly owned subsidiary of the
Company, is developing algorithm technology which enables the Company to offer
modem applications to its customers. The Company may continue to utilize cash
and equity to acquire or invest in complementary businesses or products or to
obtain the right to use complementary technologies. From time to time, in the
ordinary course of business, the Company may evaluate potential acquisitions of
or investments in such businesses, products or technologies owned by third
parties.
 
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<PAGE>   9
 
MANUFACTURING
 
     The Company contracts with independent foundries and assembly and test
service providers to manufacture all of its products. This manufacturing
strategy enables the Company to focus on its design strengths, minimize fixed
costs and capital expenditures and gain access to advanced manufacturing
capabilities. Semiconductor manufacturing consists of foundry activity where
wafer fabrication takes place, and assembly and test activities. Wafer
fabrication is performed by two independent foundries, which utilize advanced
manufacturing technologies. A substantial majority of the Company's products are
manufactured by Taiwan Semiconductor Manufacturing Company Ltd. ("TSMC"), which
has manufactured certain of the Company's products since 1989. The Company also
has a foundry arrangement with United Microelectronics Corporation ("UMC") in
Taiwan. Most of the Company's devices are currently fabricated using a mixed
signal CMOS 0.35 micron process technology.
 
     The Company is dependent on its foundries to allocate to the Company a
portion of their foundry capacity sufficient to meet the Company's needs and to
produce products of acceptable quality and with acceptable manufacturing yields
in a timely manner. These foundries fabricate products for other companies and
manufacture products of their own design. In November 1995, the Company entered
into long-term agreements with TSMC and UMC. Under the Company's long-term
agreement with TSMC, in exchange for TSMC's wafer capacity commitments for the
years 1996 through 1999, the Company made payments of approximately $32 million
in two installments in 1996 and 1997.
 
     Under the Company's agreement with UMC, the Company entered into a joint
venture arrangement with UMC and other U.S. semiconductor companies to build a
separate semiconductor manufacturing facility to be located in Taiwan at an
estimated cost of $1 billion. The Company has invested approximately $24.6
million in this joint venture. Under the terms of the agreement, the Company
received approximately a 5% equity ownership in the joint venture company and
capacity rights. The facility was scheduled to open during 1998, but fires
during construction impeded progress. UMC has stated that it expects insurance
will cover its recent fire losses at the joint venture foundry. On October 17,
1998, the Company entered into an agreement with UMC to sell UMC approximately
63.8 million shares of the joint venture for a purchase price of $22.4 million
dollars. Following the sale, the Company continues to hold 6 million shares of
stock.
 
     All of the Company's semiconductor products are assembled and tested by
third-party vendors, primarily OSE and Advanced Semiconductor Engineering in
Taiwan, ASAT in Hong Kong, and Astra Microtronics in Indonesia. The Company has
internally designed and developed its own test software and certain test
equipment, which are provided to the Company's test vendors. Shortages of raw
materials or disruptions in the provision of services by the Company's assembly
vendors could lead to supply constraints or delays in the delivery of the
Company's products. Such constraints or delays might result in the loss of
customers, limitations or reductions in the Company's revenues or other material
adverse effects on the Company's business, financial condition and results of
operations. The Company's reliance on third-party assembly and testing vendors
involves a number of other risks, including reduced control over delivery
schedules, quality assurance and costs. The inability of such third parties to
deliver products of acceptable quality and in a timely manner could have a
material adverse effect on the Company's business, financial condition and
results of operations. See "Factors That May Affect Future Results -- Dependence
on TSMC and Other Third Parties" and " -- International Operations."
 
COMPETITION
 
     The markets in which the Company competes are intensely competitive and are
characterized by rapid technological change, price declines and rapid product
obsolescence. The Company currently competes with add-in card suppliers and
other semiconductor manufacturers. The Company expects competition to increase
in the future from existing competitors and from other companies that may enter
the Company's existing or future markets with products that may be at lower
costs or provide higher levels of integration, higher performance or additional
features. The Company is unable to predict the timing and nature of any such
competitive product offerings. The announcement and commercial shipment of
competitive products could adversely affect sales of the Company's products and
may result in increased price competition that would
 
                                        8
<PAGE>   10
 
adversely affect the average selling prices ("ASPs") and margins of the
Company's products. In general, product prices in the semiconductor industry
have decreased over the life of a particular product. The markets for most of
the applications for the Company's products are characterized by intense price
competition. The willingness of prospective customers to design the Company's
products into their products depends to a significant extent upon the ability of
the Company to sell its products at a price that is cost-effective for such
customers. As the markets for the Company's products mature and competition
increases, the Company anticipates that prices for its products will continue to
decline. If the Company is unable to reduce its costs sufficiently to offset
declines in product prices or is unable to introduce more advanced products with
higher product prices, the Company's business, financial condition and results
of operations would be materially adversely affected. See "Factors That May
Affect Future Results -- Potential Fluctuations in Operating Results."
 
     The Company's existing and potential competitors consist principally of
large domestic and international companies that have substantially greater
financial, manufacturing, technical, marketing, distribution and other
resources, greater intellectual property rights, broader product lines and
longer-standing relationships with customers than the Company. The Company's
competitors also include a number of smaller and emerging companies. The
Company's principal audio competitors include Cirrus Logic, Creative Technology
and Yamaha. The Company's principal video competitors include C-Cube, Windbond,
LSI Logic and SGS Thompson. The Company's principal modem competitors include
Cirrus Logic, Lucent, PC-TEL, Rockwell, 3Com and Texas Instruments. Certain of
the Company's current and potential competitors maintain their own semiconductor
foundries and may therefore benefit from certain capacity, cost and technical
advantages. The Company believes that its ability to compete successfully
depends on a number of factors, both within and outside of its control,
including the price, quality and performance of the Company's and its
competitors' products, the timing and success of new product introductions by
the Company, its customers and its competitors, the emergence of new multimedia
standards, the development of technical innovations, the ability to obtain
adequate foundry capacity and sources of raw materials, the efficiency of
production, the rate at which the Company's customers design the Company's
products into their products, the number and nature of the Company's competitors
in a given market, the assertion of intellectual property rights and general
market and economic conditions. There can be no assurance that the Company will
be able to compete successfully in the future.
 
     Each successive generation of microprocessors has provided increased
performance, which could in the future result in a microprocessor capable of
performing multimedia functions. In this regard, Intel Corporation has developed
Native Signal Processing ("NSP") capability and an extended multimedia system
architecture ("MMX") for use in conjunction with its Pentium microprocessor, and
is promoting the processing power of the Pentium for data and signal intensive
functions such as graphics acceleration and other multimedia functions. There
can be no assurance that the increased capabilities of microprocessors will not
adversely affect demand for the Company's products. See "Factors That May Affect
Future Results -- Importance of New Products and Technological Changes."
 
PATENTS AND PROPRIETARY RIGHTS
 
     The Company relies on a combination of patents, trademarks, copyrights,
trade secret laws and confidentiality procedures to protect its intellectual
property rights. As of December 31, 1998, the Company had 9 patents granted in
the United States, which expire over time, commencing in 1999 and ending in
2015, and 12 corresponding foreign patents. In addition, the Company intends to
seek further United States and international patents on its technology. There
can be no assurance that patents will be issued from any of the Company's
pending applications or applications in preparation or that any claims allowed
from pending applications or applications in preparation will be of sufficient
scope or strength, or be issued in all countries where the Company's products
can be sold, to provide meaningful protection or any commercial advantage to the
Company. Also, competitors of the Company may be able to design around the
Company's patents. The laws of certain foreign countries in which the Company's
products are or may be designed, manufactured or sold, including various
countries in Asia, may not protect the Company's products or intellectual
property rights to the same extent as do the laws of the United States and thus
make the possibility of piracy of the
 
                                        9
<PAGE>   11
 
Company's technology and products more likely. Although the Company is not aware
of the development, distribution or sales of any illegal copies of the Company's
hardware or software, any infringements of its patents, copyrights or
trademarks, or any violation of its trade secrets, confidentiality procedures or
licensing agreements to date, there can be no assurance that the steps taken by
the Company to protect its proprietary information will be adequate to prevent
misappropriation of its technology or that the Company's competitors will not
independently develop technologies that are substantially equivalent or superior
to the Company's technology.
 
     The semiconductor industry is characterized by vigorous protection and
pursuit of intellectual property rights or positions, which have resulted in
significant and often protracted and expensive litigation. Except for the
Lemelson Foundation complaint (See "Item 3. Legal Proceedings"), there was no
pending intellectual property litigation against the Company. However, the
Company or its foundries may from time to time receive notice of claims that the
Company has infringed patents or other intellectual property rights owned by
others. The Company may seek licenses under such patents or other intellectual
property rights. However, there can be no assurance that licenses will be
offered or that the terms of any offered licenses will be acceptable to the
Company. The failure to obtain a license from a third party for technology used
by the Company could cause the Company to incur substantial liabilities and to
suspend the manufacture of products or the use by the Company's foundries of
processes requiring the technology. Furthermore, the Company may initiate claims
or litigation against third parties for infringement of the Company's
proprietary rights or to establish the validity of the Company's proprietary
rights. Litigation by or against the Company could result in significant expense
to the Company and divert the efforts of the Company's technical and management
personnel, whether or not such litigation results in a favorable determination
for the Company. In the event of an adverse result in any such litigation, the
Company could be required to pay substantial damages, cease the manufacture, use
and sale of infringing products, expend significant resources to develop
non-infringing technology, discontinue the use of certain processes or obtain
licenses for the infringing technology. There can be no assurance that the
Company would be successful in such development or that such licenses would be
available on reasonable terms, or at all, and any such development or license
could require expenditures by the Company of substantial time and other
resources. Although patent disputes in the semiconductor industry have often
been settled through cross-licensing arrangements, there can be no assurance
that in the event that any third party makes a successful claim against the
Company or its customers, a cross-licensing arrangement could be reached. In
such a case, if a license is not made available to the Company on commercially
reasonable terms, the Company's business, financial condition and results of
operations could be materially adversely affected.
 
     The Company currently licenses certain of the technology utilized by the
Company in its products, and expects to continue to do so in the future. The
Company has no current plans to grant licenses with respect to its products or
technology; however, it may become necessary for the Company to enter into
product licenses in the future in order, among other things, to secure foundry
capacity. Although the Company has in the past granted licenses to certain of
its technology, some of which have expired, such licenses have been limited and
the Company has not derived material revenues from such licenses in recent
periods. See "Factors That May Affect Future Results -- Uncertainty Regarding
Patents and Protection of Proprietary Rights."
 
EMPLOYEES
 
     As of December 31, 1998, the Company had 426 full-time employees, including
185 in research and development, 118 in marketing, sales and support and 123 in
operations, finance and administration. The Company's future success will
depend, in part, on its ability to continue to attract, retain and motivate
highly qualified technical and management personnel, particularly highly skilled
semiconductor design personnel and software engineers involved in new product
development, for whom competition is intense. The Company's employees are not
represented by any collective bargaining unit, and the Company has never
experienced a work stoppage. See "Factors That May Affect Future
Results -- Dependence on Key Personnel."
 
                                       10
<PAGE>   12
 
ITEM 2. PROPERTIES
 
     Prior to October 1996, the Company leased two facilities in Fremont,
California. The leases for such facilities expired on June 30 and October 31,
1996. The facilities consisted of two buildings comprising approximately 62,000
square feet, which were used as the Company's headquarters. In October 1995, the
Company purchased approximately 16 acres of land near its previous Fremont
headquarters and constructed a new headquarters facility of 93,000 square feet.
The Company relocated its operations from the leased facility to the new
facility in September 1996. The Company completed construction of an additional
building of 77,000 square feet to support headcount growth in August of 1998.
The Company also completed construction of a dormitory of 11,000 square feet to
house visitors and guest workers in August 1998.
 
ITEM 3. LEGAL PROCEEDINGS
 
     On March 11, 1998, Creative Technology Ltd. and its subsidiary E-mu
Systems, Inc. (together, "Creative") filed a lawsuit against the Company and one
of its customers, Diamond Multimedia Systems, Inc. ("Diamond"), alleging
infringement of U.S. Patent No. 5,698,803 (the "803 patent"), by the Company's
Maestro products, one of which is included in products sold by Diamond. The
complaint requests preliminary and permanent injunctions, and unspecified
damages. Creative also claims willful infringement and requests treble damages
and attorney's fees. The lawsuit, entitled Creative Technology Ltd. et al v. ESS
Technology, Inc. et al, was filed in the U.S. District Court for the Central
District of California.
 
     On September 25, 1998, the lawsuit between Company and Creative was settled
to the parties' mutual satisfaction, and ESS is now under a license from
Creative regarding sales of its Maestro products. Further terms of the
settlement are confidential.
 
     On February 26, 1999, the Company was named in a complaint, along with 87
other defendants, brought by the Lemelson Medical, Education & Research
Foundation (the "Lemelson Foundation") in the United States District Court for
the District of Arizona, no. Civ99-0377PHXRGS. The complaint alleges
infringement of unspecified claims in some or all of sixteen U.S. patents, and
seeks both injunctive relief and unspecified damages, with a request for damage
enhancement and attorneys' fees pursuant to 35 U.S.C. section 285. The Company
has not yet been formally served with the complaint, and has been approached by
representatives of the Lemelson Foundation suggesting that it agree to a
license. The Company is studying this proposal, and is also investigating
possible indemnification by its vendors and/or joint defense arrangements with
other defendants. Although the ultimate outcome of this matter is not currently
determinable, the Company believes, based in part on the licensing terms offered
by Lemelson Foundation that the resolution of the matter will not have a
material adverse effect on the Company's financial position or liquidity;
however, there can be no assurance that the ultimate resolution of this matter
will not have a material adverse effect on the Company's results of operation.
 
ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS
 
     No matters were submitted to a vote of security holders during the quarter
ended December 31, 1998.
 
                                       11
<PAGE>   13
 
                                    PART II
 
ITEM 5. MARKET FOR THE REGISTRANT'S COMMON EQUITY AND RELATED SHAREHOLDER
MATTERS
 
     The Company's Common Stock has been trading on the Nasdaq National Market
under the symbol "ESST" since October 6, 1995. The following table sets forth
the high and low last reported sales prices for the Common Stock as reported by
the Nasdaq National Market during the period indicated.
 
<TABLE>
<CAPTION>
                                                                     HIGH           LOW
                                                                  ----------      --------
<S>                                                               <C>             <C>
FISCAL 1997:
First Quarter ending March 31, 1997.........................      34 1/4          21 3/8
Second Quarter ending June 30, 1997.........................      29 1/2          11 7/8
Third Quarter ending September 30, 1997.....................      18 1/4          13 1/4
Fourth Quarter ending December 31, 1997.....................      14 3/8          7 9/16
FISCAL 1998:
First Quarter ending March 31, 1998.........................      8 7/16          6 1/4
Second Quarter ending June 30, 1998.........................      7 3/8           3 7/8
Third Quarter ending September 30, 1998.....................      4 15/32         2 1/32
Fourth Quarter ending December 31, 1998.....................      6 7/8           2 5/32
</TABLE>
 
     As of January 31, 1999, there were approximately 313 record holders of the
Company's Common Stock. Since shareholders are listed under their brokerage
firm's names, the actual number of shareholders is higher.
 
     In connection with the Company's acquisition of VideoCore Technology, Inc.
in January 1996, the shareholders of VideoCore received an aggregate of
approximately 525,000 shares of the Company's Common Stock and $5.7 million in
cash.
 
     In connection with the Company's acquisition of OSEE Technology, Inc. in
March 1996, the shareholders of OSEE received an aggregate of approximately
217,000 shares of the Company's Common Stock and $3.6 million in cash. Also
outstanding stock options at OSEE were exchanged for 85,000 stock options of the
Company.
 
     In connection with the Company's acquisition of Platform Technologies, Inc.
in June, 1997, the shareholders of Platform Technologies received an aggregate
of approximately 2.54 million shares of the Company's Common Stock, including
approximately 954,000 options with a value of $32.7 million.
 
     The issuance of securities in this Item 5 was deemed to be exempt from
registration under the Securities Act of 1933, as amended (the "Act"), in
reliance on Section 4(2) of the Act as a transaction by an issuer not involving
any public offering. The recipients of the securities in such transaction
represented their intention to acquire the securities for investment only and
not with a view to or for sale in connection with any distribution thereof and
appropriate legends were affixed to the securities issued in such transaction.
The recipients were given adequate access to information about the Company.
 
     The Company has never declared or paid any cash dividends on its Common
Stock. The Company currently anticipates that it will retain all future earnings
for use in its business and does not anticipate paying any cash dividends in the
foreseeable future.
 
                                       12
<PAGE>   14
 
ITEM 6. SELECTED FINANCIAL DATA
 
     The following selected consolidated financial data should be read in
conjunction with the Consolidated Financial Statements and related notes thereto
and "Management's Discussion and Analysis of Financial Condition and Results of
Operations" appearing elsewhere in this Form 10-K.
 
<TABLE>
<CAPTION>
                                                       YEAR ENDED DECEMBER 31,
                                       -------------------------------------------------------
                                        1994        1995        1996        1997        1998
                                       -------    --------    --------    --------    --------
                                                (IN THOUSANDS, EXCEPT PER SHARE DATA)
<S>                                    <C>        <C>         <C>         <C>         <C>
STATEMENT OF OPERATIONS DATA:
Net revenues.........................  $33,435    $105,744    $226,455    $249,517    $218,252
Cost of revenues.....................   12,047      39,584     106,818     171,859     182,417
                                       -------    --------    --------    --------    --------
  Gross profit.......................   21,388      66,160     119,637      77,658      35,835
Operating expenses:
  Research and development...........    3,711       8,665      20,270      29,471      30,529
  Research and development
     in-process......................       --          --      30,355      22,200          --
  Selling, general and
     administrative..................    3,233       9,758      16,814      25,198      36,289
                                       -------    --------    --------    --------    --------
Operating income (loss)..............   14,444      47,737      52,198         789     (30,983)
Nonoperating income, net.............      283       2,694       3,241       2,183       1,478
                                       -------    --------    --------    --------    --------
Income before income taxes...........   14,727      50,431      55,439       2,972     (29,505)
Provision for (benefit from) income
  taxes..............................    6,346      20,545      33,813      13,838      (1,489)
                                       -------    --------    --------    --------    --------
Net income (loss)....................  $ 8,381    $ 29,886    $ 21,626    $(10,866)   $(28,016)
                                       -------    --------    --------    --------    --------
Net income (loss) per
  share -- basic.....................  $  0.25    $   0.96    $   0.57    $  (0.27)   $  (0.68)
                                       =======    ========    ========    ========    ========
Net income (loss) per
  share -- diluted(1)................  $  0.22    $   0.79    $   0.52    $  (0.27)   $  (0.68)
                                       =======    ========    ========    ========    ========
Shares used in calculating net income
  (loss) per share -- basic..........   33,510      31,265      37,702      39,593      40,955
                                       =======    ========    ========    ========    ========
Shares used in calculating net income
  (loss) per share -- diluted(1).....   37,413      37,775      41,588      39,593      40,955
                                       =======    ========    ========    ========    ========
</TABLE>
 
<TABLE>
<CAPTION>
                                                            DECEMBER 31,
                                       -------------------------------------------------------
                                        1994        1995        1996        1997        1998
                                       -------    --------    --------    --------    --------
                                                           (IN THOUSANDS)
<S>                                    <C>        <C>         <C>         <C>         <C>
BALANCE SHEET DATA:
Cash, cash equivalents and short-term
  investments........................  $10,860    $ 78,124    $ 69,204    $ 42,284    $ 82,471
Working capital......................   11,135      70,602      65,207      74,238      81,124
Total assets.........................   24,014     162,703     211,985     231,654     214,645
Long-term debt, less current
  portion............................       --      15,960          --          --          --
Total shareholders' equity...........   14,458     105,208     143,176     171,107     142,072
</TABLE>
 
- ---------------
(1) See Note 6 of Notes to Consolidated Financial Statements for an explanation
    of shares used in calculating net income (loss) per share -- diluted.
 
                                       13
<PAGE>   15
 
ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
OF OPERATIONS
 
     The following discussion should be read in conjunction with the Company's
Consolidated Financial Statements contained in Item 8 of this report. Except for
the historical information contained herein, the matters discussed in this
report are forward-looking statements that involve certain risks and
uncertainties that could cause actual results to differ materially from those in
the forward-looking statements. Potential risks and uncertainties include,
without limitation, those mentioned in this report and, in particular, the
factors described below under "Factors That May Affect Future Results."
 
OVERVIEW
 
     ESS designs, develops and markets highly integrated mixed signal
semiconductor products for sale to the Internet, PC and consumer marketplace. In
1998, ESS had revenues totaling $218.3 million, a 13% decrease from the 1997
total of $249.5 million and 4% decrease from 1996 revenues of $226.5 million.
Net income decreased by 347% from $11.3 million in 1997, excluding a one-time
pre and post-tax charge of $22.2 million related to acquired research and
development in-process for the acquisition of Platform, to a net loss of $28.0
million in 1998. 1997 net income, excluding the one time pre and post- tax
charge for acquired research and development in-process, decreased by 78% from
1996 net income of $52.0 million, excluding a one-time pre and post-tax charge
of $30.4 million related to acquired research and development in-process for the
VideoCore and OSEE acquisitions. The gross margin for 1998 was 16%, reflecting
price competition offset in part by manufacturing cost reductions, compared to
gross margin in 1997 of 31%. 1997 margin declined from 53% in 1996 primarily due
to price competition in the audio segment offset in part by manufacturing cost
reductions.
 
     The Company is a leader in semiconductor audio products for the PC
marketplace and semiconductor video products for the VCD player market. In 1996,
the Company entered the VCD player market after its January 1996 acquisition of
VideoCore pursuant to which the Company acquired all of the outstanding capital
stock of VideoCore in exchange for approximately 525,000 shares of the Company's
Common Stock and $5.7 million in cash. VideoCore develops integrated circuits
which incorporate advanced compression technology in digital video products
under the trade-name VideoDrive. In March 1996, the Company completed its
acquisition of OSEE pursuant to which the Company acquired all of the
outstanding capital stock of OSEE in exchange for approximately 217,000 shares
of the Company's Common Stock and $3.6 million in cash. Also outstanding stock
options of OSEE were exchanged for 85,000 stock options of the Company. OSEE
develops advanced modem algorithm technology that enables the Company to provide
modem products under the trade name TeleDrive. Both acquisitions were accounted
for as purchases and the portion of the purchase prices attributable to research
and development in-process was expensed in the first quarter of 1996. In 1996,
1997 and 1998, the Company's AudioDrive products served the market for the ISA
standard. In June 1997, the Company completed its acquisition of Platform
pursuant to which the Company acquired all the outstanding capital stock of
Platform in exchange for approximately 2.54 million shares of the Company's
Common Stock including approximately 954,000 options. The acquisition was
accounted for as a purchase and the portion of the purchase price attributable
to research and development in-process was expensed in the second quarter of
1997. The acquisition of Platform allowed the Company to develop and
subsequently introduce products for the PCI standard.
 
     ESS' AudioDrive products enable PC manufacturers to provide audio
capabilities on add-in sound cards and directly on the motherboards of desktop
and notebook computers. The Company has established itself as a leader in
integrated audio solutions and counts many of the leading manufacturers of
personal computers and sound cards among its customers.
 
     In 1996, the Company introduced its VideoDrive product, a single-chip
MPEG-1 decoder that provides full-screen, full-motion video and selectable
CD-quality audio for VCD players. Shipments of these chips to the VCD player
market began in the second quarter of 1996. In 1997, the Company introduced its
first MPEG-2 video chip solution, a fully programmable, single-chip processor
that incorporates the additional features needed for consumer electronics
applications such as DVD players, set-top boxes, multimedia personal computers
and home entertainment units.
 
                                       14
<PAGE>   16
 
     The TeleDrive products for the Internet and other modem markets were
developed following the Company's first quarter of 1996 acquisition of OSEE. In
1997, the Company began shipment of V.34bis modem solutions and introduced the
V.90 56K modem solutions. The Company is currently shipping both V.34bis and
V.90 56K modem solutions.
 
     Prior to October 1996, the Company leased two facilities in Fremont,
California. The leases for such facilities expired on June 30 and October 31,
1996. The facilities consisted of two buildings comprising approximately 62,000
square feet, which were used as the Company's headquarters. At the end of 1995,
ESS purchased 16 acres of land in Fremont, California, near its previous
facilities. By the end of 1996, the Company completed and occupied a two-story,
93,000-square-foot headquarters. In 1998, the Company completed construction of
a 77,000 square foot building to support headcount growth. An 11,000 square foot
dormitory was also completed during 1998.
 
     During the fourth quarter of 1997, the Company established a wholly-owned
foreign subsidiary in the Cayman Islands, British West Indies and transferred a
substantial portion of its business operations to it.
 
RESULTS OF OPERATIONS
 
     The following table sets forth certain items from the Company's
consolidated statements of operations as a percentage of net revenues for the
periods indicated.
 
<TABLE>
<CAPTION>
                                                   YEARS ENDED DECEMBER 31,
                                                  ---------------------------
                                                  1996       1997       1998
                                                  -----      -----      -----
<S>                                               <C>        <C>        <C>
Net revenues....................................  100.0%     100.0%     100.0%
Cost of revenues................................   47.2       68.9       83.6
                                                  -----      -----      -----
  Gross margin..................................   52.8       31.1       16.4
Operating expenses:
  Research and development......................    9.0       11.8       14.0
  Research and development in-process...........   13.4        8.9         --
  Selling, general and administrative...........    7.4       10.1       16.6
                                                  -----      -----      -----
Operating income (loss).........................   23.0        0.3      (14.2)
Nonoperating income, net........................    1.5        0.9        0.7
                                                  -----      -----      -----
Income (loss) before income taxes...............   24.5        1.2      (13.5)
Provision for (benefit from) income taxes.......   14.9        5.5       (0.7)
                                                  -----      -----      -----
Net income (loss)...............................    9.6%*     (4.3)%**  (12.8)%
                                                  =====      =====      =====
</TABLE>
 
- ---------------
 * Includes a one-time pre and post-tax charge of 13.4% related to acquired
   research and development in-process.
 
** Includes a one-time pre and post-tax charge of 8.9% related to acquired
   research and development in-process.
 
     Net Revenues. Net revenues were $226.5 million, $249.5 million and $218.3
million in 1996, 1997 and 1998, respectively. Net revenues decreased 13% between
1997 and 1998 primarily due to a decrease in ASP in both the audio and video
markets. Net revenues rose by 10% between 1996 and 1997 primarily from increased
sales of the Company's video products. The Company's PC audio products accounted
for substantially all of the Company's net revenues for 1996 and a majority in
1997 and 1998. International revenues accounted for approximately 92%, 89% and
92% of net revenues for 1996, 1997 and 1998, respectively. The Company's net
revenues are denominated in U.S. dollars. The Company expects that its
percentage of international sales will remain high in the future.
 
     Gross Margin. Gross profit was $119.6 million, $77.7 million and $35.8
million in 1996, 1997 and 1998, respectively, representing corresponding gross
margins of 52.8%, 31.1% and 16.4% of net revenues for such years. The decrease
in gross margins from 1997 to 1998 was a result of lower ASPs on the Company's
products throughout the year. The decrease in gross margins from 1996 to 1997
was a result of lower ASPs on the
 
                                       15
<PAGE>   17
 
Company's products throughout the year and an inventory charge to cost of goods
sold during the fourth quarter of $18.3 million for excess inventory positions.
During the third quarter of 1997, indication of strong demand led to a high
order rate. After non-cancelable production orders were placed, yields improved
dramatically and the marketplace demand was lower than expected. The Company was
under contractual agreement to pay a pre-established per-die price, and was
unable to realize the benefit of the enhanced yields and was committed to
purchase the increased volume. These factors led to the inventory charge and the
decrease in gross profit. The Company's overall gross profit and margin are
subject to change due to various factors, including among others, competitive
product pricing, unit volumes shipped, new product introductions, yields, wafer
costs, assembly costs and product mix. The Company has encountered increased
competition from other suppliers who are offering competitive products and new
features. In addition, the Company expects the overall ASPs for its existing
products to decline significantly over the life of the products. The Company
believes that in order to maintain or increase gross profit, it must achieve
higher unit volume shipments, reduce costs, add new features and introduce new
products. However, no assurance can be given that the Company will be able to
ship higher volumes, reduce costs, add new features or introduce new products
that gain market acceptance.
 
     Research and Development Expenses. On-going research and development
expenses were $20.3 million, $29.5 million and $30.5 million, or 9.0%, 11.8% and
14.0% of net revenues, in 1996, 1997 and 1998, respectively. Research and
development in-process represents one-time pre and post-tax charges of $30.4
million from the acquisition of VideoCore and OSEE in the first quarter of 1996
and of $22.2 million from the acquisition of Platform in the second quarter of
1997. The growth in on-going research and development expenses between 1996 and
1997 was primarily due to the increase in the Company's engineering staff,
engineering test runs, masks, internal and external consulting expenses and
licensing fees associated with the research and development efforts to support
the introduction of new products. The growth in on-going research and
development expenses between 1997 and 1998 was primarily due to the increase in
amortization of technical infrastructure and covenants not to compete related to
the Company's acquisitions and a one-time charges for impaired assets related to
previous acquisitions offset by lower engineering test run and mask charges. The
Company expects that research and development expenses will remain relatively
constant as a percentage of net revenues. There can be no assurance, however,
that revenues will grow at the same rate as the anticipated research and
development expenses.
 
     Selling, General and Administrative Expenses. Selling, general and
administrative expenses were $16.8 million, $25.2 million and $36.3 million, or
7.4%, 10.1% and 16.6% of net revenues, in 1996, 1997 and 1998, respectively. The
increase in selling, general and administrative expenses from 1996 to 1997 was
primarily attributable to increased spending for additional sales and
administrative employees. The increase in expense was also due to commissions on
higher sales levels and, to a lesser extent, promotional expenses and costs
associated with the expansion of the Company's sales activities. The increase in
selling, general and administrative expense from 1997 to 1998 was primarily due
to the increase in reserves for accounts receivable, the amortization of
covenants not to compete related to the Company's acquisitions, one-time charge
for impaired assets related to a previous acquisition and the expenses
associated with the Company's conversion to a new management information system.
The Company expects to incur higher selling, general and administrative expenses
in the future due to the need to increase selling activities, although these
expenses are expected to remain relatively constant as a percentage of net
revenues. There can be no assurance, however, that revenues will grow at the
same rate as the anticipated selling, general and administrative expenses.
 
     Non-Operating Income. Non-operating income was $3.2 million, $2.2 million
and $1.5 million in 1996, 1997 and 1998, respectively. In 1996, 1997 and 1998
non-operating income consisted primarily of interest income and gains on sale of
short-term investments.
 
     Provision for Income Taxes. The Company's effective tax rate was 61%, 466%
and (5%) for 1996, 1997 and 1998, respectively. The tax rate for 1996 of 61%
reflects a non-deductible expense for the one-time pre and post-tax charge of
$30.4 million related to acquired research and development in-process from the
acquisition of VideoCore and OSEE in the first quarter 1996. The pro forma tax
rate excluding this charge of $30.4 million was 39%. The Company's pro forma tax
rate for 1996 was slightly lower than the combined
 
                                       16
<PAGE>   18
 
federal and state statutory rate of 41% as a result of tax exempt interest
income and research and development credits. The reported tax rate for 1997 of
466% of pre-tax income significantly exceeds the combined federal and state
statutory tax rate of 41% due to two charges that are not deductible in the
federal and state tax returns. The first charge is the one-time pre- and
post-tax charge of $22.2 million for the acquisition of Platform in the second
quarter of 1997. The second is the charge to increase inventory reserves in the
fourth quarter of 1997. Because the majority of the inventories were held by a
foreign subsidiary, a majority of the charge was not deductible on the U.S.
federal and state income tax returns. The reported tax benefit for 1998 of 5% of
pre-tax losses is below the combined federal and state statutory rate of 41%. It
is because a majority of the losses were by a foreign subsidiary and are not
deductible on the U.S. federal and state income tax returns. See Note 4 of Notes
to Consolidated Financial Statements.
 
LIQUIDITY AND CAPITAL RESOURCES
 
     Since its inception, the Company has financed its cash requirements from
cash generated by operations, the sale of equity securities, bank lines of
credit and short-term and long-term debt. At December 31, 1998, ESS had cash and
cash equivalents and short-term investments of $82.5 million and working capital
of $81.1 million. As of December 31, 1998, the Company had a $15.0 million line
of credit which expires on October 1, 2001 and was secured by land and buildings
with a net book value of $23.8 million. The line of credit requires the Company
to achieve certain financial ratios and operating results. At December 31, 1998,
the Company was in compliance with its borrowing criteria. There were no
borrowings under the line of credit as of December 31, 1998.
 
     In 1998, the Company generated net cash from operating activities of $31.7
million. This resulted from a reduction in inventory of $24.4 million, a
decrease in prepaids and other assets of $13.3 million, an increase in accounts
payable and accrued liabilities of $7.1 million, an increase in income taxes
payable and deferred income taxes of $3.5 million, depreciation and amortization
of $12.5 million and a charge for compensation expense related to stock options
of $.5 million, partially offset by a net loss of $28.0 million and an increase
in accounts receivable of $1.6 million. The Company received $22.4 million from
sale of its UICC investment, $1.2 million from the issuance of common stock and
the income tax credit from disqualifying disposition of common stock options.
The Company invested $12.3 million in property and equipment, $2.8 million in
the repurchase of stock and $2.2 million in the net purchase of short-term
investments. For the year, cash and cash equivalents increased by $38.0 million.
 
     In 1997, the Company used net cash of $2.6 million in operating activities.
This resulted from a net loss of $10.9 million, a gain on sale of short-term
investments of $0.1 million, an increase in accounts receivable of $14.2
million, an increase in inventories of $14.0 million, a decrease in accounts
payable and accrued expenses of $8.4 million and a decrease in income taxes
payable and deferred income taxes of $7.5 million offset in part by reductions
in prepaid expenses and other assets of $22.4 million, a one-time non-cash
charge for research and development in-process of $22.2 million and depreciation
and amortization of $7.9 million. The company received net proceeds of $5.6
million from sale of short term investments, $3.1 million from the issuance of
common stock from exercise of stock options and employee stock purchase plan,
$3.0 million in income tax credits from disqualifying disposition of common
stock options and $2.5 million from the acquisition of Platform. The Company
invested $17.7 million in UICC joint venture and $15.2 million in property and
equipment. For the year, cash and cash equivalents declined $21.3 million.
 
     In 1996, the Company generated net cash from operating activities of $43.3
million. This resulted from net income of $21.6 million, a one-time non-cash
charge for research and development in-process of $30.4 million, an increase in
accounts payable and accrued expenses of $24.1 million, depreciation and
amortization of $3.2 million and a charge for compensation expense related to
stock options of $0.1 million, less a gain on sale of short-term investments of
$1.0 million an increase in inventories of $14.0 million, an increase in
accounts receivable of $11.8 million, an increase in prepaid expenses and other
assets at $9.1 million and a decrease in income taxes and deferred income taxes
of $0.2 million. The Company received net proceeds of $7.1 million from sale of
short term investments, $3.8 million from the issuance of common stock from
exercise of stock options and employee stock purchase plan, and $8.9 million in
income tax credits from disqualifying disposition of common stock options. The
Company invested $14.0 million in property and
                                       17
<PAGE>   19
 
equipment, repurchased stock for $19.7 million, paid $16.0 million on capacity
commitments, $9.3 million for acquisition of VideoCore and OSEE and $6.9 million
in UICC joint venture. For the year, cash and cash equivalents declined $2.8
million.
 
     The Company believes that its existing cash and cash equivalents as of
December 31, 1998 together with the cash generated from operations, available
borrowings under its line of credit and other financing options, will be
sufficient to fund acquisitions of property and equipment and provide adequate
working capital through at least the next twelve months. Capital expenditures
for the next twelve months are anticipated to be approximately $14.1 million
which will be primarily used to acquire capital equipment. The Company may also
utilize cash to acquire or invest in complementary businesses or products or to
obtain the right to use complementary technologies. From time to time, in the
ordinary course of business, the Company may evaluate potential acquisitions of
or investment in such businesses, products or technologies owned by third
parties.
 
NEW ACCOUNTING STANDARDS
 
     In June 1997, the Financial Accounting Standards Board issued Statement No.
130, "Reporting Comprehensive Income" which was adopted by the Company in the
first quarter of fiscal 1998. This Statement establishes standards for reporting
and displaying comprehensive income and its components (revenues, expenses,
gains and losses) in a full set of general-purpose financial statements.
Comprehensive income as defined includes all changes in equity (net assets)
during a period from non-owner sources. Such items may include foreign currency
translation adjustments, unrealized gains/losses from investing and hedging
activities, and other transactions. This Statement requires that all items that
are required to be recognized under accounting standards as components of
comprehensive income be reported in a financial statement that is displayed with
the same prominence as other financial statements. As the Company has no
components of other comprehensive income, there are no disclosure requirements
involved in the Company's adoption of this Statement.
 
     In June 1997, the Financial Accounting Standards Board issued Statement No.
131, "Disclosures about Segments of an Enterprise and Related Information" which
was adopted by the Company in the first quarter of fiscal 1998. This Statement
establishes standards for the way that public business enterprises report
information about operating segments in annual financial statements and requires
that those enterprises report selected information about operating segments in
interim financial reports issued to stockholders. It also establishes standards
for related disclosures about products and services, geographic areas and major
customers. The Company expanded its disclosure of geographical areas in
accordance with the new standard. As the Company operates and tracks its results
in only one segment, there are no additional disclosure requirements involved
with the Company's adoption of this Statement.
 
YEAR 2000 ISSUES
 
     General. The Company is currently conducting a company-wide Year 2000
readiness program ("Y2K Program"). The Y2K Program is addressing the issue of
computer programs and embedded computer chips being unable to distinguish
between the year 1900 and the year 2000. Therefore, some computer hardware and
software will need to be modified prior to the Year 2000 in order to remain
functional. The Company anticipates that Year 2000 compliance will be
substantially complete by June 1999.
 
     Year 2000 Program. The Company's Year 2000 Program is divided into four
major sections -- ESS manufactured products, internal information ("IT")
systems, non-IT systems (e.g., testing equipment), and third-party suppliers and
customers. The general phases common to all sections are: (1) inventorying Year
2000 items; (2) assessing the Year 2000 compliance of items determined to be
material to the company; and (3) repairing or replacing material items that are
determined not to be Year 2000 compliant.
 
     The Company has completed its review of substantially all ESS manufactured
products for Year 2000 compliance purposes. The Company believes that
substantially all of the Company's products are Year 2000 compliant and that
those that are not Year 2000 compliant can be upgraded to be Year 2000 compliant
by June 1999.
 
                                       18
<PAGE>   20
 
     With respect to its internal IT computer systems, the Company has completed
the inventory and review phases of the Y2K program and has been in the repair or
replacement phase. In February 1998, the Company began to install Year 2000
compliant programs from Oracle Corporation for approximately 80 percent of its
business systems. This installation was fully implemented by the end of 1998.
With respect to the remaining internal IT computer systems that are not yet Year
2000 compliant, the Company plans to either replace or upgrade them by the end
of September 1999.
 
     The Company has completed the inventory phase and Year 2000 compatibility
of its non-IT systems. To date, about 80 percent of its non-IT systems are Year
2000 compliant. The Company plans to repair or replace those that are not yet
Year 2000 compliant by the end of June 1999.
 
     The Company has been working with its key suppliers and contract
manufacturers to assess the possible effects of their Year 2000 readiness on the
Company's operations. Although these suppliers and contract manufacturers have
notified the Company that they have been addressing the problem, they have not
provided specific assurance regarding the Year 2000 compliance of their systems
and software. The Company's reliance on suppliers and contract manufacturers
and, therefore, on the proper functioning of their information systems and
software, means that failure of such key suppliers and contract manufacturers to
address Year 2000 issues could have a material adverse impact on the Company's
operations and financial results; however, the potential impact and related
costs are not known at this time.
 
     Costs of the Assessment and Modification. The total cost associated with
required modifications to become Year 2000 compliant is not expected to be
material to the Company's financial position. Through December 31, 1998, the
Company has spent $2.6 million to implement Year 2000 compliant programs from
Oracle Corporation. The Company estimates that it may spend up to an additional
$250,000 for other replacements or upgrades and for communicating with key
suppliers and customers.
 
     Risks. The failure to correct a material Year 2000 problem could result in
an interruption in, or a failure of, certain normal business activities or
operations. Such failures could materially and adversely affect the Company's
results of operations, liquidity and financial condition. Due to the general
uncertainty inherent in the Year 2000 problem resulting in part from the
uncertainty of the Year 2000 readiness of third-party suppliers and customers,
the Company is unable to determine at this time whether the consequences of Year
2000 failures will have a material impact on the Company's results of
operations, liquidity or financial condition. The Company believes that its Year
2000 Program will help to significantly reduce the Company's level of
uncertainty about the Year 2000 problem and, in particular, about the Year 2000
compliance and readiness of its material key suppliers and customers. The
Company believes that, with the implementation of new business systems and
completion of the Year 2000 Program as scheduled, the possibility of significant
interruptions of normal operations should be reduced.
 
     We are at work on the development of various types of contingency plans to
address potential problems with critical internal systems and third party
interactions. Our contingency plans include procedures for dealing with a major
disruption of internal business systems, plans for factory shutdown and
identification of alternative vendors of critical materials in the event of Year
2000 related disruption in supply. Contingency planning will continue through at
least 1999, and will depend heavily on the results of the remediation and
testing of critical systems. The potential ramifications of a Year 2000 type
failure are potentially far-reaching and largely unknown. We cannot assure you
that a contingency plan in effect at the time of a system failure will
adequately address the immediate or long term effects of a failure, or that such
a failure will not have a material adverse affect on the Company.
 
                     FACTORS THAT MAY AFFECT FUTURE RESULTS
 
     This report contains certain forward-looking statements that are subject to
risk and uncertainties. For such statements, the Company desires to take
advantage of the "Safe Harbor" provisions of the Private Securities Litigation
Reform Act of 1995 and of Section 21E of and Rule 3b-6 under the Securities
Exchange Act of 1934. Such forward-looking statements include, without
limitation, statements regarding the Company's expectations, intentions of
future strategies and involve known and unknown risks, uncertainties and
 
                                       19
<PAGE>   21
 
other factors. All forward looking statements included in this document are
based on information available to the Company on the date hereof, and the
Company assumes no obligation to update such forward-looking statements.
 
     Potential Fluctuations in Operating Results. The Company's operating
results are subject to quarterly and other fluctuations due to a variety of
factors, including the gain or loss of significant customers, increased
competitive pressures, changes in pricing policies by the Company, its
competitors or its suppliers, including decreases in unit average selling prices
("ASPs") of the Company's products, the timing of new product announcements and
introductions by the Company or its competitors and market acceptance of new or
enhanced versions of the Company's and its customers' products. Other factors
include the availability of foundry capacity, fluctuations in manufacturing
yields, availability and cost of raw materials, changes in the mix of products
sold, the cyclical nature of both the semiconductor industry and the market for
PCs, seasonal customer demand, the timing of significant orders and significant
increases in expenses associated with the expansion of operations. The Company's
operating results could also be adversely affected by economic conditions in
various geographic areas where the Company or its customers do business, or
order cancellations or rescheduling. These factors are difficult to forecast,
and these or other factors could materially affect the Company's quarterly or
annual operating results. There can be no assurance as to the level of sales or
earnings that may be attained by the Company in any given period in the future.
The Company currently places noncancelable orders to purchase its products from
independent foundries on an approximately three month rolling basis, while its
customers generally place purchase orders with the Company less than four weeks
prior to delivery that may be canceled without significant penalty.
Consequently, if anticipated sales and shipments in any quarter are canceled or
do not occur as quickly as expected or forecasted sales levels are not realized,
expense and inventory levels could be disproportionately high and the Company's
business, financial condition and results of operations could be materially
adversely affected. See "Management's Discussion and Analysis of Financial
Condition and Results of Operations."
 
     Competition; Pricing Pressures. The markets in which the Company competes
are intensely competitive and are characterized by rapid technological change,
price declines and rapid product obsolescence. See "Item 1.
Business -- Competition."
 
     Dependence on the PC and Consumer Markets. In 1996, 1997 and 1998, sales of
PC audio semiconductor chips accounted for a majority of the Company's net
revenues, and the Company expects that sales of audio semiconductors will
continue to account for a significant portion of its net revenues for the
foreseeable future. In 1998, sales of video semiconductor chips to the video
compact disk ("VCD") player market accounted for a significant portion of the
Company's revenues. Any reduction in ASPs or demand for the Company's
semiconductor chips, whether because of a reduction in demand for PCs or VCD
players in general, increased competition or otherwise, would have a material
adverse effect on the Company's business, financial condition and results of
operations.
 
     The Company is currently engaged in the development and introduction of new
PC audio, video and modem semiconductor devices for the Internet, PC and
consumer markets. There can be no assurance that the Company will be able to
identify market trends or new product opportunities, develop and market new
products, achieve design wins or respond effectively to new technological
changes or product announcements by others. A failure in any of these areas
would have a material adverse effect on the Company's business, financial
condition and results of operations. See "Item 1. Business -- Audio Drive
Products," "-- Video Drive Products" and "TeleDrive Products."
 
     The Company's products are sold for incorporation into desktop and notebook
computers and VCD players. Therefore, the Company is heavily dependent on the
growth of the markets and the cost requirements for desktop and notebook
computers and VCD players. There can be no assurance that these markets will be
able to grow. A slowing in unit volume and a decrease in ASPs could result in a
decline in revenues which would have a material adverse effect on the Company's
business, financial condition and results of operations.
 
     Importance of New Products and Technological Changes. The markets for the
Company's products are characterized by evolving industry standards, rapid
technological change and product obsolescence. The Company's success is highly
dependent upon the successful development and timely introduction of new
 
                                       20
<PAGE>   22
 
products at competitive price and performance levels. The success of new
products depends on a number of factors, including timely completion of product
development, market acceptance of the Company's and its customers' new products,
securing sufficient foundry capacity for volume manufacturing of wafers,
achievement of acceptable wafer fabrication yields by the Company's independent
foundries and the Company's ability to offer new products at competitive prices.
In order to succeed in having the Company's products incorporated into new
products being designed by its customers, the Company must anticipate market
trends and meet performance, quality and functionality requirements of such OEMs
and must successfully develop and manufacture products that adhere to these
requirements. In addition, the Company must meet the timing and price
requirements of such manufacturers and must make such products available in
sufficient quantities. Accordingly, in selling to OEMs, the Company can often
incur significant expenditures prior to volume sales of new products, if any. In
order to help accomplish these goals, the Company has in the past and will
continue to consider in the future the acquisition of other companies or the
products and technologies of other companies. Such acquisitions carry additional
risks such as a lack of integration with existing products and corporate
culture, the potential for large write-offs and the diversion of management
attention. There can be no assurance that the Company will be able to identify
market trends or new product opportunities, develop and market new products,
achieve design wins or respond effectively to new technological changes or
product announcements by others. A failure in any of these areas would have a
material adverse effect on the Company's business, financial condition and
results of operations. See "Item 1. Business -- Research and Development."
 
     Dependence on TSMC and Other Third Parties. The Company relies on
independent foundries to manufacture all of its products. A substantial majority
of the Company's products are currently manufactured by TSMC, which has
manufactured certain of the Company's products since 1989. The Company also has
foundry arrangements with UMC, which has manufactured certain of the Company's
products since 1995. These relationships provide the Company with access to
advanced process technology necessary for the manufacture of the Company's
products. These foundries fabricate products for other companies and, in certain
cases, manufacture products of their own design. In November 1995, the Company
entered into long-term agreements with TSMC and UMC in which the Company has
secured access to additional capacity and to leading edge technology. See "Item
1. Business -- Manufacturing."
 
     While the Company has entered into long-term agreements with its two
foundries, the Company's reliance on these independent foundries involves a
number of risks, including the absence of adequate capacity, the unavailability
of, or interruption in access to, certain process technologies and reduced
control over delivery schedules, manufacturing yields and costs, and the
international risks more fully described below. In addition, the Company has
pre-negotiated certain of its purchase orders and could be unable to benefit
from enhanced yields realized by its vendors. The Company expects to rely upon
TSMC and UMC to manufacture substantially all of the Company's products for the
foreseeable future. In the event that TSMC and UMC are unable to continue to
manufacture the Company's key products in required volumes, the Company will
have to identify and secure additional foundry capacity. In such an event, the
Company may be unable to identify or secure additional foundry capacity from
another manufacturer. Even if such capacity is available from another
manufacturer, the qualification process could take six months or longer. The
loss of any of its foundries as a supplier, the inability of the Company to
acquire additional capacity at its current suppliers or qualify other wafer
manufacturers for additional foundry capacity should additional capacity be
necessary, or any other circumstances causing a significant interruption in the
supply of semiconductors to the Company would have a material adverse effect on
the Company's business, financial condition and results of operations.
 
     To address potential foundry capacity constraints in the future, ESS will
continue to consider and may be required to enter into additional arrangements,
including equity investments in or loans to independent wafer manufacturers in
exchange for guaranteed production capacity, joint ventures to own and operate
foundries, or "take or pay" contracts that commit the Company to purchase
specified quantities of wafers over extended periods. Any such arrangements
could require the Company to commit substantial capital and grant licenses to
its technology. The need to commit substantial capital may require the Company
to obtain additional debt or equity financing, which could result in dilution to
the Company's shareholders. There can be no assurance that such additional
financing, if required, will be available when needed or, if available, will be
obtained on terms acceptable to the Company.
 
                                       21
<PAGE>   23
 
     Customer Concentration. A limited number of customers have accounted for a
substantial portion of the Company's net revenues. In 1996, 1997 and 1998, sales
to the Company's top five customers, including sales to distributors, accounted
for approximately 40%, 49% and 54% respectively, of the Company's net revenues.
In 1996, Compaq and Universe Electron Corporation each accounted for
approximately 12% and 13%, respectively, of the Company's net revenues. In 1997,
Eastbase and Dynax, a Hong Kong distributor, each accounted for approximately
13% of the Company's net revenues. In 1998, Dynax and Shinco accounted for
approximately 16% and 15% of the Company's net revenues. Sales to distributors
are generally subject to agreements allowing limited rights of return and price
protection with respect to unsold products. Returns and allowances in excess of
reserves could have a material adverse impact on the Company's business,
financial condition and results of operation. During 1997, the Company adopted a
policy of deferring revenue recognition on sales of devices to distributors in
Hong Kong and Taiwan until devices are sold to the end customers. This has led
to increased operational visibility on product moving through the channel. The
Company expects that a limited number of customers may account for a substantial
portion of its net revenues for the foreseeable future. The Company has
experienced changes from year to year in the composition of its major customer
base and believes this pattern may continue. The Company does not have long-term
purchase agreements with any of its customers. The reduction, delay or
cancellation of orders from one or more major customers for any reason or the
loss of one or more of such major customers could materially and adversely
affect the Company's business, financial condition and results of operations. In
addition, since the Company's products are often sole sourced to its customers,
the Company's operating results could be materially and adversely affected if
one or more of its major customers were to develop other sources of supply.
There can be no assurance that the Company's current customers will continue to
place orders with the Company, that orders by existing customers will not be
canceled or will continue at the levels of previous periods or that the Company
will be able to obtain orders from new customers.
 
     Management of Growth. The Company has experienced significant growth in
unit shipments and the addition of multiple product lines that require
additional management systems and processes. To manage its future operations and
growth effectively, the Company will need to hire and retain management, hire,
train, motivate, manage and retain its employees, continue to improve its
operational, financial and management information systems and implement
additional systems and controls. There can be no assurance that the Company will
be able to manage such growth effectively, and the failure to do so could have a
material adverse effect on the Company's business, financial condition and
results of operations. In addition, the Company has implemented an
enterprise-wide software package that integrates its core business functions.
Should the implementation be incomplete or otherwise problematic, substantial
disruption to the business operations of the Company could result. There can be
no assurance that the software implementation will not cause business
disruptions to the Company.
 
     International Operations. During 1996, 1997 and 1998, international sales
accounted for a substantial majority of the Company's net revenues.
Substantially all of the Company's international sales were to customers in Hong
Kong, Taiwan, Singapore, Japan and Korea. The Company expects that international
sales will continue to represent a significant portion of its net revenues for
the foreseeable future. In addition, substantially all of the Company's products
are manufactured, assembled and tested by independent third parties in Asia. Due
to its reliance on international sales and foreign third-party manufacturing,
assembly and testing operations, the Company is subject to the risks of
conducting business outside of the United States. These risks include unexpected
changes in, or impositions of legislative or regulatory requirements, delays
resulting from difficulty in obtaining export licenses for certain technology,
tariffs, quotas and other trade barriers and restrictions, longer payment
cycles, greater difficulty in accounts receivable collection, potentially
adverse taxes, the burdens of complying with a variety of foreign laws and other
factors beyond the Company's control. The Company is also subject to general
geopolitical risks in connection with its international trade relationships.
Although the Company has not to date experienced any material adverse effect on
its business, financial condition or results of operations as a result of such
regulatory, geopolitical and other factors, there can be no assurance that such
factors will not have a material adverse effect on the Company's business,
financial condition and results of operations in the future or require the
Company to modify its current business practices.
 
     In addition, the laws of certain foreign countries in which the Company's
products are or may be manufactured or sold, including various countries in
Asia, may not protect the Company's products or
 
                                       22
<PAGE>   24
 
intellectual property rights to the same extent as do the laws of the United
States and thus make the possibility of piracy of the Company's technology and
products more likely. Currently, all of the Company's product sales and all of
its arrangements with foundries and assembly and test vendors provide for
pricing and payment in U.S. dollars. In 1998, the effect of significant currency
fluctuations in Asia had no material impact on the Company. There can be no
assurance that future fluctuations in currency exchange rates will not have a
material adverse effect on the Company's business, financial condition and
results of operations. To date, the Company has not engaged in any currency
hedging activities, although the Company may do so in the future. Further, there
can be no assurance that one or more of the foregoing factors will not have a
material adverse effect on the Company's business, financial condition and
results of operations or require the Company to modify its current business
practices.
 
     Semiconductor Industry. The semiconductor industry has historically been
characterized by rapid technological change, cyclical market patterns,
significant price erosion, periods of over-capacity and production shortages,
variations in manufacturing costs and yields and significant expenditures for
capital equipment and product development. In addition, the industry has
experienced significant economic downturns at various times, characterized by
diminished product demand and accelerated erosion of product prices. The Company
may experience substantial period-to-period fluctuations in operating results
due to general semiconductor industry conditions.
 
     Uncertainty Regarding Patents and Protection of Proprietary Rights. The
Company relies on a combination of patents, trademarks, copyrights, trade secret
laws and confidentiality procedures to protect its intellectual property rights.
See "Item 1. Business -- Patents and Proprietary Rights," "Item 3. Legal
Proceedings."
 
     Dependence on Key Personnel. The Company's success depends to a significant
degree upon the continued contributions of Fred S.L. Chan, the Company's Chief
Executive Officer, President and Chairman of the Board of Directors. The present
and future success of the Company depends on its ability to continue to attract,
retain and motivate qualified senior management, sales and technical personnel,
particularly highly skilled semiconductor design personnel and software
engineers, for whom competition is intense. The loss of Mr. Chan, other key
executive officers, key design personnel or software engineers or the inability
to hire and retain sufficient qualified personnel could have a material adverse
effect on the Company's business, financial condition and results of operations.
There can be no assurance that the Company will be able to retain these
employees. The Company currently does not maintain any key man life insurance on
the life of any of its key employees.
 
     Control by Existing Shareholders. As of December 31, 1998, Fred S.L. Chan,
the Company's Chief Executive Officer, President and Chairman of the Board of
Directors, together with his spouse, Annie M.H. Chan, a director of the Company,
and certain trusts for the benefit of the Chan's children beneficially owned, in
the aggregate, 37% of the Company's outstanding Common Stock. As a result, these
shareholders, acting together, possess significant voting power over the
Company, giving them the ability among other things to influence significantly
the election of the Company's Board of Directors and approve significant
corporate transactions. Such control could delay, defer or prevent a change in
control of the Company, impede a merger, consolidation, takeover or other
business combination involving the Company, or discourage a potential acquirer
from making a tender offer or otherwise attempting to obtain control of the
Company. Additionally, Fred S.L. Chan and Annie M.H. Chan announced on April 28,
1998, that they would be purchasing between $5 and $10 million of the Company's
common stock on the open market. As of December 31, 1998, such purchases had
totaled $1.4 million representing 241,000 shares at prices ranging from $5.15 to
$6.56.
 
     Possible Volatility of Stock Price. The price of the Company's Common Stock
has in the past and may continue in the future to fluctuate widely. Future
announcements concerning the Company, its competitors or its principal
customers, including quarterly operating results, changes in earnings estimates
by analysts, technological innovations, new product introductions, governmental
regulations or litigation may cause the market price of the Company's Common
Stock to continue to fluctuate substantially. Further, in recent years the stock
market has experienced extreme price and volume fluctuations that have
particularly affected the market prices of equity securities of many high
technology companies and that often have been unrelated or disproportionate to
the operating performance of such companies. These fluctuations, as well as
general
 
                                       23
<PAGE>   25
 
economic, political and market conditions such as recessions or international
currency fluctuations, may materially adversely affect the market price of the
Common Stock.
 
     Year 2000 Compliance. The dates on which the Company believes the Year 2000
Program (the "Y2K Program") will be completed are based on Management's best
estimates, which were derived utilizing numerous assumptions of future events,
including the continued availability of certain resources, third-party
modification plans and other factors. However, there can be no guarantee that
these estimates will be achieved, or that there will not be a delay in, or
increased costs associated with, the implementation of the Y2K Program. Specific
factors that might cause differences between the estimates and actual results
include, but are not limited to, the availability and cost of personnel trained
in these areas, the ability to locate and correct all relevant computer code,
timely responses to and corrections by third-parties and suppliers, the ability
to implement interfaces between the new systems and the systems not being
replaced, and similar uncertainties. Due to the general uncertainty inherent in
the Year 2000 problem, resulting in part from the uncertainty of the Year 2000
readiness of third-parties and the interconnection of global businesses, the
Company cannot ensure its ability to timely and cost-effectively resolve
problems associated with the Year 2000 issue that may affect its operations and
business, or expose it to third-party liability.
 
     Euro Conversion. The Company is in the process of addressing the issues
raised by the introduction of the Single European Currency ("Euro") for initial
implementation as of January 1, 1999, and through the transition period to
January 1, 2002. The Company does not expect the cost of any system
modifications to be material or result in any material increase in transaction
costs. The Company will continue to evaluate the impact over time of the
introduction of the Euro; however, based on currently available information
management does not believe that the introduction of the Euro will have a
material adverse impact on the Company's financial condition or the overall
trends in results of operations.
 
ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
 
     Foreign Exchange Risks: The Company funds its operations from cash
generated from its operations, the sale of marketable securities and short and
long-term debt. As the Company operates primarily in Asia, the Company is
exposed to market risk from changes in foreign exchange rates, which could
affect its results of operations and financial condition. In order to reduce the
risk from fluctuation in foreign exchange rates, the Company's product sales and
all of its arrangements with its foundry and test and assembly vendors are
denominated in U.S. dollars. The Company has not entered into any currency
hedging activities.
 
     Interest Rate Risks: The Company also invests in short-term investments.
Consequently, the Company is exposed to fluctuation in rates on these
investments. Increases or decreases in interest rates generally translate into
decreases and increases in the fair value of these investments. In addition, the
credit worthiness of the issuer, relative values of alternative investments, the
liquidity of the instrument and other general market conditions may affect the
fair values of interest rate sensitive investments. In order to reduce the risk
from fluctuation in rates, the Company invests in highly liquid governmental
notes and bonds with contractual maturities of less than two years. All of the
investments have been classified as available for sales and at December 31,
1998, the fair market value of the Company's investments approximated their
costs.
 
ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA
 
(a)  The following documents are filed as part of this Report.
 
      (1)  Financial Statements:
 
                                       24
<PAGE>   26
 
<TABLE>
<CAPTION>
 
        <S>                                                           <C>
        Report of Independent Accountants
        Consolidated Balance Sheets as of December 31, 1997 and 1998
        Consolidated Statements of Operations for the years ended
          December 31, 1996, 1997 and 1998
        Consolidated Statements of Shareholders' Equity for the
          years ended December 31, 1996, 1997 and 1998
        Consolidated Statements of Cash Flows for the years ended
          December 31, 1996, 1997 and 1998
        Notes to Consolidated Financial Statements
</TABLE>
 
      (2)  Financial Statement Schedules:
 
           Financial Statement Schedules have been omitted because they are not
           required or applicable, or the information required to be set forth
           therein is included in the Financial Statements or notes thereto.
 
                                       25
<PAGE>   27
 
                       REPORT OF INDEPENDENT ACCOUNTANTS
 
To the Board of Directors and Shareholders of
ESS Technology, Inc.
 
     In our opinion, the accompanying consolidated balance sheets and the
related consolidated statements of operations, shareholders' equity and of cash
flows present fairly, in all material respects, the financial position of ESS
Technology, Inc. and its subsidiaries at December 31, 1997 and 1998, and the
results of their operations and their cash flows for each of the three years in
the period ended December 31, 1998, in conformity with generally accepted
accounting principles. These financial statements are the responsibility of the
Company's management; our responsibility is to express an opinion on these
financial statements based on our audits. We conducted our audits of these
statements in accordance with generally accepted auditing standards which
require that we plan and perform the audit to obtain reasonable assurance about
whether the financial statements are free of material misstatement. An audit
includes examining, on a test basis, evidence supporting the amounts and
disclosures in the financial statements, assessing the accounting principles
used and significant estimates made by management, and evaluating the overall
financial statement presentation. We believe that our audits provide a
reasonable basis for the opinion expressed above.
 
/s/ PRICEWATERHOUSECOOPERS LLP
 
San Jose, California
January 21, 1999
 
                                       26
<PAGE>   28
 
                              ESS TECHNOLOGY, INC.
 
                          CONSOLIDATED BALANCE SHEETS
                           DECEMBER 31, 1997 AND 1998
                             (AMOUNTS IN THOUSANDS)
 
                                     ASSETS
 
<TABLE>
<CAPTION>
                                                                  DECEMBER 31,
                                                              --------------------
                                                                1997        1998
                                                              --------    --------
<S>                                                           <C>         <C>
Current assets:
  Cash and cash equivalents.................................  $ 27,760    $ 65,752
  Short-term investments....................................    14,524      16,719
  Accounts receivable, net..................................    36,265      37,830
  Inventories...............................................    47,285      22,882
  Deferred income taxes.....................................     4,898       6,372
  Prepaid expenses and other assets.........................     4,053       4,142
                                                              --------    --------
          Total current assets..............................   134,785     153,697
Property and equipment, net.................................    32,922      38,000
Other assets................................................    63,947      22,948
                                                              --------    --------
                                                              $231,654    $214,645
                                                              ========    ========
                       LIABILITIES AND SHAREHOLDERS' EQUITY
Current liabilities:
  Accounts payable and accrued expenses.....................  $ 50,858    $ 57,930
  Income taxes payable and deferred income taxes............     9,689      14,643
                                                              --------    --------
          Total current liabilities.........................    60,547      72,573
                                                              --------    --------
Commitments and Contingencies (Note 9)
Shareholders' equity:
  Preferred stock, no par value, 10,000 shares authorized;
     none issued and outstanding............................        --          --
  Common stock, no par value, 100,000 shares authorized;
     40,674 and 40,849 shares issued and outstanding at
     December 31, 1997 and 1998, respectively...............   137,452     137,312
  Retained earnings.........................................    33,655       4,760
                                                              --------    --------
          Total shareholders' equity........................   171,107     142,072
                                                              --------    --------
          Total liabilities and shareholders' equity........  $231,654    $214,645
                                                              ========    ========
</TABLE>
 
   The accompanying notes are an integral part of these financial statements.
 
                                       27
<PAGE>   29
 
                              ESS TECHNOLOGY, INC.
 
                     CONSOLIDATED STATEMENTS OF OPERATIONS
                  YEARS ENDED DECEMBER 31, 1996, 1997 AND 1998
                (AMOUNTS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
 
<TABLE>
<CAPTION>
                                                                 YEAR ENDED DECEMBER 31,
                                                             --------------------------------
                                                               1996        1997        1998
                                                             --------    --------    --------
<S>                                                          <C>         <C>         <C>
Net revenues...............................................  $226,455    $249,517    $218,252
Cost of revenues...........................................   106,818     171,859     182,417
                                                             --------    --------    --------
  Gross profit.............................................   119,637      77,658      35,835
Operating expenses:
  Research and development.................................    20,270      29,471      30,529
  Research and development in-process......................    30,355      22,200          --
  Selling, general and administrative......................    16,814      25,198      36,289
                                                             --------    --------    --------
Operating income (loss)....................................    52,198         789     (30,983)
Interest income, net.......................................     2,276       2,117       1,478
Gain on sale of short-term investments.....................       965          66          --
                                                             --------    --------    --------
Income (loss) before provision for (benefit from) income
  taxes....................................................    55,439       2,972     (29,505)
Provision for (benefit from) income taxes..................    33,813      13,838      (1,489)
                                                             --------    --------    --------
Net income (loss)..........................................  $ 21,626    $(10,866)   $(28,016)
                                                             ========    ========    ========
Net income (loss) per share -- basic.......................  $   0.57    $  (0.27)   $  (0.68)
                                                             ========    ========    ========
Net income (loss) per share -- diluted.....................  $   0.52    $  (0.27)   $  (0.68)
                                                             ========    ========    ========
Shares used in calculating net income (loss) per
  share -- basic...........................................    37,702      39,593      40,955
                                                             ========    ========    ========
Shares used in calculating net income (loss) per
  share -- diluted.........................................    41,588      39,593      40,955
                                                             ========    ========    ========
</TABLE>
 
   The accompanying notes are an integral part of these financial statements.
 
                                       28
<PAGE>   30
 
                              ESS TECHNOLOGY, INC.
 
                CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY
                  YEARS ENDED DECEMBER 31, 1996, 1997 AND 1998
                             (AMOUNTS IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                            COMMON STOCK
                                          -----------------     DEFERRED     RETAINED
                                          SHARES    AMOUNT    COMPENSATION   EARNINGS     TOTAL
                                          ------   --------   ------------   ---------   --------
<S>                                       <C>      <C>        <C>            <C>         <C>
Balance at December 31, 1995............  35,473   $ 66,891       $(60)      $ 38,377    $105,208
  Issuance of common stock upon exercise
     of options.........................   3,667      3,152         --             --       3,152
  Issuance of common stock for
     acquisitions.......................     743     23,352         --             --      23,352
  Issuance of common stock for employee
     stock purchase plan................      47        621         --             --         621
  Amortization of deferred
     compensation.......................      --         --         60             --          60
  Repurchase of common stock............  (1,803)    (4,249)        --        (15,482)    (19,731)
  Income tax benefit on disqualifying
     disposition of common stock
     options............................      --      8,888         --             --       8,888
  Net income............................      --         --         --         21,626      21,626
                                          ------   --------       ----       --------    --------
Balance at December 31, 1996............  38,127     98,655         --         44,521     143,176
  Issuance of common stock upon exercise
     of options.........................     886      2,294         --             --       2,294
  Issuance of common stock for
     acquisition........................   1,586     32,703         --             --      32,703
  Issuance of common stock for employee
     stock purchase plan................      75        817         --             --         817
  Income tax benefit on disqualifying
     disposition of common stock
     options............................      --      2,983         --             --       2,983
  Net loss..............................      --         --         --        (10,866)    (10,866)
                                          ------   --------       ----       --------    --------
Balance at December 31, 1997............  40,674    137,452         --         33,655     171,107
  Issuance of common stock upon exercise
     of options.........................     612        618         --             --         618
  Compensation expense related to common
     stock options issued to
     consultants........................      --        535         --             --         535
  Issuance of common stock for employee
     stock purchase plan................      86        395         --             --         395
  Income tax benefit on disqualifying
     disposition of common stock
     options............................      --        202         --             --         202
  Repurchase of common stock............    (523)    (1,890)        --           (879)     (2,769)
  Net loss..............................      --         --         --        (28,016)    (28,016)
                                          ------   --------       ----       --------    --------
Balance at December 31, 1998............  40,849   $137,312         --       $  4,760    $142,072
                                          ======   ========       ====       ========    ========
</TABLE>
 
   The accompanying notes are an integral part of these financial statements.
 
                                       29
<PAGE>   31
 
                              ESS TECHNOLOGY, INC.
 
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
                  YEARS ENDED DECEMBER 31, 1996, 1997 AND 1998
                             (AMOUNTS IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                  YEAR ENDED DECEMBER 31,
                                                               ------------------------------
                                                                 1996       1997       1998
                                                               --------   --------   --------
<S>                                                            <C>        <C>        <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
  Net income (loss).........................................   $ 21,626   $(10,866)  $(28,016)
  Adjustments to reconcile net income (loss) to net cash
     provided by (used in) operating activities:
     Depreciation and amortization..........................      3,234      7,865     12,446
     Charges for research and development in-process........     30,355     22,200         --
     Gain on sale of short-term investments.................       (965)       (66)        --
     Deemed compensation expense and compensation related to
       stock options........................................         60         --        535
     Change in assets and liabilities (net of effect of
       acquisitions) Accounts receivable....................    (11,818)   (14,197)    (1,565)
       Inventories..........................................    (13,969)   (14,038)    24,403
       Prepaid expenses and other assets....................     (9,120)    22,395     13,307
       Accounts payable and accrued expenses................     24,082     (8,359)     7,072
       Income taxes payable and deferred income taxes.......       (188)    (7,520)     3,480
                                                               --------   --------   --------
          Net cash provided by (used in) operating
            activities......................................     43,297     (2,586)    31,662
                                                               --------   --------   --------
CASH FLOWS FROM INVESTING ACTIVITIES:
  Acquisition of property and equipment.....................    (14,015)   (15,207)   (12,336)
  Sale of short-term investments............................     17,435     24,916     21,775
  Purchase of short-term investments........................    (10,376)   (19,291)   (23,970)
  Sale (purchase) of joint venture investment...............     (6,849)   (17,750)    22,415
  Payments associated with capacity commitments.............    (15,960)        --         --
  Cash received from (paid for) acquisitions................     (9,288)     2,529         --
                                                               --------   --------   --------
          Net cash used in investing activities.............    (39,053)   (24,803)     7,884
                                                               --------   --------   --------
CASH FLOWS FROM FINANCING ACTIVITIES:
  Repurchase of common stock................................    (19,731)        --     (2,769)
  Issuance of common stock..................................      3,773      3,111      1,013
  Income tax benefit on disqualifying disposition of common
     stock options..........................................      8,888      2,983        202
                                                               --------   --------   --------
          Net cash provided by (used in) financing
            activities......................................     (7,070)     6,094     (1,554)
                                                               --------   --------   --------
Net increase (decrease) in cash and cash equivalents........     (2,826)   (21,295)    37,992
Cash and cash equivalents at beginning of period............     51,881     49,055     27,760
                                                               --------   --------   --------
Cash and cash equivalents at end of period..................   $ 49,055   $ 27,760   $ 65,752
                                                               ========   ========   ========
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
  Common stock issued for acquisitions......................   $ 23,352   $ 32,703   $     --
  Cash paid for income taxes................................   $ 23,576   $ 18,300   $     --
                                                               ========   ========   ========
</TABLE>
 
   The accompanying notes are an integral part of these financial statements.
 
                                       30
<PAGE>   32
 
                              ESS TECHNOLOGY, INC.
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
 1. THE COMPANY AND ITS SIGNIFICANT ACCOUNTING POLICIES
 
     ESS Technology, Inc. (the "Company") was incorporated in California in
February 1984. The Company and its wholly-owned subsidiaries design, develop and
market highly integrated mixed signal semiconductor products for sale to the
Internet, PC and consumer marketplaces.
 
  Use of Estimates
 
     The preparation of financial statements in accordance with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosures of contingent assets and liabilities at the date of the financial
statements and reported amounts of revenue and expenses during the reporting
period. Actual results could differ from those estimates.
 
  Principles of Consolidation
 
     The consolidated financial statements include the accounts of the Company
and its wholly-owned subsidiaries. All significant intercompany accounts and
transactions have been eliminated.
 
  Cash Equivalents and Short-Term Investments
 
     The Company considers all highly liquid investments with an initial
maturity of 90 days or less to be cash equivalents and investments with original
maturity dates of greater than 90 days to be short-term investments.
 
     Short-term investments are comprised of primarily debt instruments have
been classified as available for sale. Management determines the appropriate
classification of securities at the time of purchase and reevaluates the
classification at each reporting date. At December 31, 1998, the fair value of
the Company's investments approximated their cost.
 
  Inventories
 
     Inventories are stated at the lower of cost or market, with cost being
determined by the first-in, first-out (FIFO) method.
 
  Property and Equipment
 
     Property and equipment are stated at cost. Depreciation of property and
equipment is provided using the straight-line method over estimated useful lives
that range from 3 to 5 years for machinery and equipment and furniture and
fixtures and 4 to 30 years for buildings and building improvements.
 
  Technical Infrastructure and Covenants not to Compete
 
     Technical infrastructure and covenants not to compete are amortized over
estimated useful lives that range from 3 to 4 years.
 
  Impairment of Long-Lived Assets
 
     Pursuant to Statement of Financial Accounting Standards No. 121,
"Accounting for the Impairment of Long-lived Assets and for Long-Lived Assets to
be Disposed of" ("SFAS 121"), the Company reviews long-lived assets based upon a
gross cash flow basis and will reserve for impairment whenever events or changes
in circumstances indicate the carrying amount of the assets may not be fully
recoverable. During 1998, Company recorded $3.1 million in write-down of
impaired assets related to technical infrastructure, covenants not to compete
and certain prepaid license fees.
 
  Revenue Recognition
 
     Revenue from products sales is recognized at the time of shipment except
for certain shipments to distributors with rights of return and allowances, in
which case revenue is deferred until the distributor resells the product. For
sales recognized at the time of shipment, reserves for estimated returns and
price adjustments are provided at the time of shipment.
 
                                       31
<PAGE>   33
                              ESS TECHNOLOGY, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
  Research and Development
 
     Research and development costs are expensed as incurred.
 
  Income Taxes
 
     The Company accounts for income taxes under an asset and liability approach
that requires the recognition of deferred tax liabilities and assets for the
expected future tax consequences of timing differences between the carrying
amounts and the tax bases of assets and liabilities. U.S. deferred income taxes
are provided on all unremitted earnings of the Company's foreign subsidiaries as
such earning are not considered permanently invested.
 
  Stock Based Compensation
 
     The Company accounts for stock based employee compensation arrangements
using the intrinsic value method as prescribed in Accounting Principles Board
Opinion No. 25, "Accounting for Stock Issued to Employees" and related
interpretations thereof. Accordingly, compensation costs for stock options is
measured as the excess, if any, of the market price of the Company's stock at
the date of grant over the stock option exercise price. In addition, the Company
complies with the disclosure provisions of Statement of Financial Accounting
Standard No. 123, "Accounting for Stock-Based Compensation" ("SFAS 123").
 
  Comprehensive Income
 
     In 1998, the Company adopted the Financial Accounting Standards Board
issued Statement of Financial Accounting Standard No. 130 ("SFAS No. 130"),
"Reporting Comprehensive Income". SFAS No. 130 establishes standards for
reporting and display of comprehensive income and its components in a full set
of general-purpose financial statements. The adoption of SFAS No. 130 did not
have a material effect on the Company's results of operations or shareholders
equity.
 
  Industry Segment
 
     In 1998, the Company adopted Statement of Financial Accounting Standard No.
131 ("SFAS No. 131"), "Disclosures About Segments of an Enterprise and Related
Information." SFAS No. 131 supersedes SFAS No. 14 and requires segment
information be reported on the basis that it is used internally for evaluating
segment performance and deciding how to allocate resources to segments in
quarterly and annual reports. The adoption of SFAS No. 131 did not have a
material effect on the Company's results of operations or shareholders equity.
 
                                       32
<PAGE>   34
                              ESS TECHNOLOGY, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
 2. BALANCE SHEET COMPONENTS (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                             DECEMBER 31,
                                                          -------------------
                                                            1997       1998
                                                          --------    -------
<S>                                                       <C>         <C>
Cash and cash equivalents:
  Cash and money market accounts........................  $ 23,318    $23,082
  U.S. government notes and bonds.......................     4,342     42,570
  Certificates of deposit...............................       100        100
                                                          --------    -------
                                                          $ 27,760     65,752
                                                          ========    =======
Short-term investments:
  U.S. government notes and bonds.......................  $ 14,524    $16,719
                                                          ========    =======
Accounts receivable:
  Accounts receivable...................................  $ 37,251    $41,758
  Less: allowance for doubtful accounts.................      (986)    (3,928)
                                                          --------    -------
                                                          $ 36,265     37,830
                                                          ========    =======
Inventories:
  Raw materials.........................................  $  1,776    $ 6,307
  Work-in-process.......................................    18,237      4,429
  Finished goods........................................    27,272     12,146
                                                          --------    -------
                                                          $ 47,285    $22,882
                                                          ========    =======
Property and equipment:
  Land..................................................  $  3,899    $ 3,899
  Buildings and building improvements...................    15,838     22,033
  Machinery and equipment...............................    22,080     27,790
  Furniture and fixtures................................       824      1,255
                                                          --------    -------
  Cost of property and equipment........................    42,641     54,977
  Less: accumulated depreciation and amortization.......    (9,719)   (16,977)
                                                          --------    -------
                                                          $ 32,922    $38,000
                                                          ========    =======
Other assets:
  Foundry prepayments and investments...................  $ 44,733    $12,406
  Prepaid license fees..................................     1,725         --
  Covenants not to compete..............................    10,262      5,651
  Technical infrastructure..............................     6,339      3,897
  Other.................................................       888        994
                                                          --------    -------
                                                          $ 63,947    $22,948
                                                          ========    =======
Accounts payable and accrued expenses:
  Accounts payable......................................  $ 42,373    $44,414
  Accrued compensation costs............................     2,449      4,578
  Accrued commission and royalties......................     1,196      2,739
  Other accrued liabilities.............................     4,840      6,199
                                                          --------    -------
                                                          $ 50,858    $57,930
                                                          ========    =======
</TABLE>
 
                                       33
<PAGE>   35
                              ESS TECHNOLOGY, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
 3. DEBT
 
     The Company has a secured line of credit agreement with a foreign bank of
$15 million, which expires on October 1, 2001. As of December 31, 1998, the line
was secured by the building and land of the Company with a net book value of
$23.8 million. Under the terms of the agreement, the Company may borrow at a
fixed rate of LIBOR plus 1.5% or a variable rate at the foreign bank's reference
rate. The line of credit requires the Company to achieve certain financial
ratios and operating results. At December 31, 1998, the Company was in
compliance with its borrowing criteria. There were no borrowings under the line
of credit as of December 31, 1998.
 
 4. INCOME TAXES
 
     Income (loss) before provision for (benefit from) income taxes consisted of
the following:
 
<TABLE>
<CAPTION>
                                                  YEAR ENDED DECEMBER 31,
                                              -------------------------------
                                               1996        1997        1998
                                              -------    --------    --------
                                                      (IN THOUSANDS)
<S>                                           <C>        <C>         <C>
Domestic....................................  $55,191    $ 13,947    $(11,014)
Foreign.....................................      248     (10,975)    (18,491)
                                              -------    --------    --------
                                              $55,439    $  2,972    $(29,505)
                                              =======    ========    ========
</TABLE>
 
     Provision for (benefit from) income taxes consisted of the following:
 
<TABLE>
<CAPTION>
                                                   YEAR ENDED DECEMBER 31,
                                                -----------------------------
                                                 1996       1997       1998
                                                -------    -------    -------
                                                       (IN THOUSANDS)
<S>                                             <C>        <C>        <C>
Current:
  Federal.....................................  $29,406    $15,011    $ 1,432
  State.......................................    3,955      1,769        280
  Foreign.....................................       42         38         34
                                                -------    -------    -------
                                                 33,403     16,818      1,746
                                                -------    -------    -------
Deferred:
  Federal.....................................      330     (2,550)    (2,767)
  State.......................................       80       (430)      (468)
                                                -------    -------    -------
                                                    410     (2,980)    (3,235)
                                                -------    -------    -------
          Total...............................  $33,813    $13,838    $(1,489)
                                                =======    =======    =======
</TABLE>
 
     A reconciliation between the provision for (benefit from) income taxes
computed at the federal statutory rate of 35% for the years ended December 31,
1996, 1997 and 1998 and the provision for (benefit from) income taxes is as
follows:
 
<TABLE>
<CAPTION>
                                                  YEAR ENDED DECEMBER 31,
                                               ------------------------------
                                                1996       1997        1998
                                               -------    -------    --------
                                                       (IN THOUSANDS)
<S>                                            <C>        <C>        <C>
Provision (benefit) at statutory rate........  $19,404    $ 1,040    $(10,327)
Taxes related to foreign jurisdictions.......       --      4,275       7,293
State income taxes, net of federal tax
  benefit....................................    1,843         94         101
Tax-exempt interest income...................     (509)      (333)        (53)
General business credit......................     (371)      (643)         --
Nondeductible research and development
  costs......................................   12,758      8,480       1,497
Other........................................      688        925          --
                                               -------    -------    --------
Provision for (benefit from) income taxes....  $33,813    $13,838    $ (1,489)
                                               =======    =======    ========
</TABLE>
 
                                       34
<PAGE>   36
                              ESS TECHNOLOGY, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
     Deferred tax assets (liabilities) are comprised of the following:
 
<TABLE>
<CAPTION>
                                                               YEAR ENDED
                                                              DECEMBER 31,
                                                           ------------------
                                                            1997       1998
                                                           -------    -------
                                                             (IN THOUSANDS)
<S>                                                        <C>        <C>
State income taxes.......................................  $   533    $    55
Accounts receivable and inventory reserves...............    3,680      4,891
Accrued expenses.........................................      370      1,069
Legal reserves and other.................................      315        357
                                                           -------    -------
          Total deferred tax assets......................    4,898      6,372
Unremitted earnings of foreign subsidiary................   (4,069)    (9,139)
Covenants not to compete and technical infrastructure....   (5,437)    (3,674)
                                                           -------    -------
          Net deferred tax liabilities...................  $(4,608)   $(6,441)
                                                           =======    =======
</TABLE>
 
 5. SHAREHOLDERS' EQUITY
 
  Common Stock
 
     On July 15, 1996, the Company's Board of Directors authorized repurchase at
management's discretion of up to 2 million shares of the Company's Common Stock
over the subsequent 12 months at market prices and as the market and business
conditions warrant. As of December 31, 1996, the Company had repurchased
1,802,500 shares at market prices ranging from $9.41 to $16.75 per share.
 
     On April 29, 1997, the Company's Board of Directors authorized repurchase
at management's discretion of up to 2 million shares of the Company's Common
Stock over the subsequent 12 months at market prices and as the market and
business conditions warrant. There were no repurchases under this program.
 
     On November 5, 1998, the Company's Board of Directors authorized repurchase
at managements' discretion of up to $7 million of the Company's Common Stock
over the subsequent 12 months at market prices and as market and business
conditions warrant. As of December 31, 1998, the Company had repurchased 523,000
shares at market prices ranging from $3.17 to $6.45 per share.
 
  1986 Stock Option Plan
 
     In February 1986, the Company adopted the 1986 Stock Option Plan (the "1986
Plan"). Under the 1986 Plan, 3,600,000 shares of Common Stock were reserved for
issuance to employees, consultants and investors as approved by the Board of
Directors. The 1986 Plan provides for incentive stock options. The plan was
terminated during fiscal year 1996 by operation of its terms. Options under the
1986 Plan are granted, subject to certain conditions, at estimated fair value as
determined by the Board of Directors. Options granted under the 1986 Plan
generally vest 25% each year after the date of grant. Options are adjusted on a
pro rata basis for certain changes in the capitalization of the Company, such as
stock splits and stock dividends. In addition, the outstanding options issued
under the 1986 Plan terminate within 90 days after termination of an option
holder's employment with the Company.
 
  1992 Stock Option Plan
 
     In January 1992, the Company adopted the 1992 Stock Option Plan (the "1992
Plan"). The 1992 Plan authorized 6,966,000 shares to be reserved for issuance.
The terms of the 1992 Plan are generally similar to those of the 1986 Plan
outlined above.
 
     In February 1998, the Company canceled 165,000 options under the 1992 Plan
with exercise prices greater than $7.69 and reissued the options with an
exercise price of $7.69.
 
                                       35
<PAGE>   37
                              ESS TECHNOLOGY, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
     In August 1998, the Company canceled 230,000 options under the 1992 Plan
with exercise prices greater than $2.69 and reissued the options with an
exercise price of $2.69.
 
  Executive Plan
 
     In January 1990 and March 1991, the Company granted 5,400,000 and 1,080,000
options, respectively, outside of the 1986 Plan to officers of the Company under
the Executive Plan. The options were granted at the then fair value of $0.083
per share, as determined by the Board of Directors. The options generally vested
over periods of one to four years.
 
  1995 Equity Incentive Plan
 
     In August 1995, the Company adopted the 1995 Equity Incentive Plan (the
"Incentive Plan"), which provides for the grant of stock options and stock
bonuses and the issuance of restricted stock by the Company to its employees,
directors and others. The Company has reserved 3,000,000 shares of the Company's
Common Stock for issuance under the Incentive Plan. The terms of the Incentive
Plan are generally similar to those of the 1986 Plan outlined above.
 
     In September 1996, the Company canceled 326,000 options under the Incentive
Plan with exercise prices greater than $14.75 and reissued the options with an
exercise price of $14.75.
 
     In May 1997, the Company canceled 720,000 options under the Incentive Plan
with exercise prices greater than $13.94 and reissued the options with an
exercise price of $13.94.
 
     In February 1998, the Company canceled 1,612,000 options under the
Incentive Plan with exercise prices greater than $7.69 and reissued the options
with an exercise price of $7.69.
 
     In August 1998, the Company canceled 1,298,000 options under the Incentive
Plan with exercise prices greater than $2.69 and reissued the options with an
exercise price of $2.69.
 
  1995 Employee Stock Purchase Plan
 
     In August 1995, the Company adopted the 1995 Employee Stock Purchase Plan
(the "Purchase Plan") and reserved a total of 225,000 shares of the Company's
Common Stock for issuance thereunder. The Purchase Plan, as amended in May,
1998, authorizes the issuance of 425,000 shares under the Purchase Plan. The
Purchase Plan permits eligible employees to acquire shares of the Company's
Common Stock through payroll deductions at a price equal to the lower of 85% of
the fair market value of the Company's common stock at the beginning of the
offering period or on the purchase date. As of Decembers 31, 1998, 208,000
shares have been issued under the Purchase Plan.
 
  1995 Directors Stock Option Plan
 
     In August 1995, the Company adopted the 1995 Directors Stock Option Plan
(the "Directors Plan") and reserved a total of 300,000 shares of the Company's
Common Stock for issuance thereunder. The Directors Plan allows for granting of
stock options to members of the Board of Directors of the Company.
 
  1997 Equity Incentive Plan
 
     In May 1997, the Company adopted the 1997 Equity Incentive Plan (the "1997
Incentive Plan") and reserved a total of 3,000,000 shares of the Company's
Common Stock for issuance thereunder. The 1997 Incentive Plan, as amended in
May, 1998, authorizes the issuance of 5,000,000 shares under the 1997 Incentive
Plan. The terms of the 1997 Incentive Plan are generally similar to those of the
1986 Plan outlined above.
 
                                       36
<PAGE>   38
                              ESS TECHNOLOGY, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
     In February 1998, the Company canceled 1,602,000 options under the 1997
Incentive Plan with exercise prices greater than $7.69 and reissued the options
with an exercise price of $7.69.
 
     In August 1998, the Company canceled 2,037,000 options under the 1997
Incentive Plan with exercise prices greater than $2.69 and reissued the options
with an exercise price of $2.69 except for 100,000 options issued to Mr. Fred
Chan, President and CEO of the Company which were reissued at $2.96 in
accordance with the 1997 Incentive Plan..
 
  Platform Stock Option Plan
 
     In June 1997, in connection with the acquisition of Platform Technologies,
Inc. ("Platform"), the Company assumed the Platform Stock Option Plan (the
"Platform Plan"). The Company does not plan to issue any additional options
under the Platform Plan and has reserved approximately 954,000 shares of Common
Stock for issuance under the Platform Plan pursuant to the exercise of options
that were outstanding at the time of the Platform acquisition. The Platform
options vest ratably over four years.
 
  Stock Based Compensation:
 
     Transactions under the Company's various Stock Option Plans are summarized
as follows (in thousands except per share amounts):
 
<TABLE>
<CAPTION>
                                                         AVAILABLE
                                                            FOR         OPTIONS      WEIGHTED AVERAGE
                                                           GRANT      OUTSTANDING     EXERCISE PRICE
                                                         ---------    -----------    ----------------
<S>                                                      <C>          <C>            <C>
Balance at December 31, 1995...........................    3,871         6,767            $ 2.11
  Granted..............................................   (2,595)        2,595             15.79
  Exercised............................................       --        (3,666)             0.85
  Canceled.............................................      863          (863)            13.79
                                                          ------        ------
Balance at December 31, 1996...........................    2,139         4,833              8.30
  Authorized...........................................    3,000            --                --
  Reserved for Platform acquisition....................      954            --                --
  Granted..............................................   (4,129)        4,129             11.78
  Exercised............................................       --          (886)             2.59
  Canceled.............................................    1,426        (1,426)            17.70
                                                          ------        ------
Balance at December 31, 1997...........................    3,390         6,650              9.20
  Authorized...........................................    2,000            --                --
  Granted..............................................   (9,478)        9,478              4.87
  Exercised............................................       --          (612)             1.01
  Canceled.............................................    8,286        (8,286)            10.48
                                                          ------        ------
Balance at December 31, 1998...........................    4,198         7,230            $ 2.79
                                                          ======        ======
</TABLE>
 
     At December 31, 1998, 2,188,000 options were vested, of which 1,288,000
options were exercisable. The remaining vested options were subject to the
blackout period as a result of the August 26, 1998 option reprice. The weighted
average grant date fair value of options granted during the years ended December
31, 1996, 1997 and 1998 were $8.68, $8.91 and $3.16, respectively.
 
                                       37
<PAGE>   39
                              ESS TECHNOLOGY, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
     The following table summarizes information about stock options outstanding
at December 31, 1998:
 
<TABLE>
<CAPTION>
                                         OPTIONS OUTSTANDING                              OPTIONS EXERCISABLE
                       --------------------------------------------------------   ------------------------------------
                            NUMBER                                                     NUMBER
                        OUTSTANDING AT     AVERAGE REMAINING                       EXERCISABLE AT
      RANGE OF         DECEMBER 31, 1998   CONTRACTUAL LIFE    WEIGHTED AVERAGE   DECEMBER 31, 1998   WEIGHTED AVERAGE
   EXERCISE PRICES      (IN THOUSANDS)          (YEARS)         EXERCISE PRICE     (IN THOUSANDS)      EXERCISE PRICE
- ---------------------  -----------------   -----------------   ----------------   -----------------   ----------------
<S>                    <C>                 <C>                 <C>                <C>                 <C>
   $0.03 -  1.40             1,184               6.24               $ 0.46                930              $ 0.44
   $2.12 -  2.69             4,867               6.20               $ 2.65                318              $ 2.67
   $2.81 -  4.75               590               7.68               $ 3.77                  0              $ 0.00
   $5.12 -  7.69               509               6.71               $ 6.43                  5              $ 6.60
   $8.00 - 29.25                80               5.91               $15.08                 35              $13.91
                             -----                                                      -----
                             7,230               6.36               $ 2.79              1,288              $ 1.38
                             =====                                                      =====
</TABLE>
 
  Fair Value Disclosures
 
     The Company's pro forma net income (loss) and pro forma net income (loss)
per share would have been as follows had compensation costs for options granted
since 1995 under the Company's option plans been determined based on the fair
value at the grant dates, as prescribed in SFAS 123, (in thousands except per
share amounts):
 
<TABLE>
<CAPTION>
                                                        YEAR ENDED
                                                       DECEMBER 31,
                                              -------------------------------
                                               1996        1997        1998
                                              -------    --------    --------
<S>                                           <C>        <C>         <C>
Net income (loss):
  As reported...............................  $21,626    $(10,866)   $(28,016)
  Pro forma.................................  $18,902    $(17,278)    (35,069)
Net income (loss) per share -- basic:
  As reported...............................  $  0.57    $  (0.27)   $  (0.68)
  Pro forma.................................  $  0.50    $  (0.44)   $  (0.86)
Net income (loss) per share -- diluted:
  As reported...............................  $  0.52    $  (0.27)   $  (0.68)
  Pro forma.................................  $  0.45    $  (0.44)   $  (0.86)
</TABLE>
 
     The fair value of each option grant is estimated on the date of grant using
the Black-Scholes model with the following assumptions used for grants during
the years ended December 31, 1996, 1997 and 1998: dividend yield of 0.0% for
these periods; expected volatility of 64% for the year ended December 31, 1996,
70% for the year ended December 31, 1997 and 85% for year ended December 31,
1998; risk-free interest rates of 6.30%, 6.23% and 5.50% for the years ended
December 31, 1996, 1997 and 1998, respectively; and a weighted average expected
option term of 5 years for the years ended December 31, 1996 and 1997 and 4
years for the year ended December 31, 1998.
 
     Sales under the Purchase Plan in 1997 and 1998 were approximately 75,000
shares and 86,000 shares, respectively, at an average price per share of $10.89
and $4.60, respectively. Pro forma compensation expense for the grant date fair
value, as defined by SFAS 123, of the purchase rights granted under the Purchase
Plan was calculated using the Black-Scholes model with the following assumptions
for 1996, 1997 and 1998: an expected life of six months for these periods;
expected volatility of 69%, 70% and 85%, respectively; expected dividend yield
of 0% for these periods and risk-free interest rates of 5.31%, 6.00% and 5.00%,
respectively. The weighted average estimated grant date fair value, as defined
by SFAS 123, of rights to purchase stock under the Purchase Plan in 1996, 1997
and 1998 were $5.34, $5.00 and $3.57 per share, respectively.
 
     Because additional option grants are expected to be made each year, the
above pro forma disclosures are not representative of pro forma effects of
reported net income (loss) for future years.
 
                                       38
<PAGE>   40
                              ESS TECHNOLOGY, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
 6. EARNINGS PER SHARE
 
     Earnings per share are calculated in accordance with the provisions of
Statement of Financial Accounting Standards No. 128 -- "Earnings per Share"
(SFAS No. 128). SFAS No. 128 requires the Company to report both basic earnings
per share, which is based on the weighted-average number of common shares
outstanding, and diluted earnings per share, which is based on the weighted
average number of common shares outstanding and all dilutive potential common
shares outstanding.
 
<TABLE>
<CAPTION>
                                                                                     PER SHARE
                                                               INCOME     SHARES      AMOUNT
                                                              --------    -------    ---------
<S>                                                           <C>         <C>        <C>
YEAR ENDED DECEMBER 31, 1996
Earnings per share of common stock..........................  $ 21,626     37,702     $ 0.57
Effect of dilutive securities:
  Stock options.............................................        --      3,886
                                                              --------    -------
Earnings per share of common stock -- assuming dilution.....  $ 21,626     41,588     $ 0.52
                                                              --------    -------
YEAR ENDED DECEMBER 31, 1997
Loss per share of common stock..............................  $(10,866)    39,593     $(0.27)
Effect of dilutive securities:
  Stock options.............................................        --         --
                                                              --------    -------
Loss per share of common stock -- assuming dilution.........  $(10,866)    39,593     $(0.27)
                                                              --------    -------
YEAR ENDED DECEMBER 31, 1998
Loss per share of common stock..............................  $(28,016)    40,995     $(0.68)
Effect of dilutive securities:
  Stock options.............................................        --         --
                                                              --------    -------
Loss per share of common stock -- assuming dilution.........  $(28,016)    40,955     $(0.68)
                                                              --------    -------
</TABLE>
 
                                       39
<PAGE>   41
                              ESS TECHNOLOGY, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
 7. INDUSTRY SEGMENT AND FOREIGN OPERATIONS
 
     The Company and its wholly-owned subsidiaries are engaged in the design,
manufacture and marketing of semiconductor products for the Internet, PC and
consumer marketplaces. Sales and purchase transactions are generally denominated
in U.S. dollars. Most of the Company's revenues outside the U.S. are made in the
Far East. The geographic location of the Company's revenue is based upon
destination of the shipment. Most of the identified assets located outside the
U.S. are in the Far East.
 
     The following is a summary of the Company's geographic operations:
 
<TABLE>
<CAPTION>
                                                                             HONG                TOTAL
                                  U.S.     TAIWAN     JAPAN    SINGAPORE     KONG       ROW     FOREIGN     TOTAL
                                --------   -------   -------   ---------   --------   -------   --------   --------
                                                             (IN THOUSANDS)
<S>                             <C>        <C>       <C>       <C>         <C>        <C>       <C>        <C>
Year ended December 31, 1996:
  Net revenues................  $ 18,790   $99,746   $33,861    $31,773    $ 30,252   $12,033   $207,665   $226,455
  Income from operations......    52,198        --        --         --          --        --         --     52,198
  Identifiable assets.........   210,964        --        --         --          --        --      1,021    211,985
 
Year ended December 31, 1997:
  Net revenues................  $ 26,793   $20,388   $19,670    $19,804    $102,900   $ 9,962   $222,724   $249,517
  Income (loss) from
    operations................    10,025        --        --         --          --        --     (9,236)       789
  Identifiable assets.........   194,053        --        --         --          --        --     37,601    231,654
 
Year ended December 31, 1998:
  Net revenues................  $ 17,363    73,566    16,546     19,812      80,717    10,248    200,889    218,252
  Loss from operations........   (13,250)       --        --         --          --        --    (17,733)   (30,983)
  Identifiable assets.........   167,203        --        --         --          --        --     47,442    214,645
</TABLE>
 
     In October 1997, the Company established a wholly owned subsidiary in the
Cayman Island, British West Indies. The Cayman Island subsidiary and its branch
offices are responsible for the manufacturing and for the international sales of
the Company's products.
 
 8. SIGNIFICANT CUSTOMERS AND CONCENTRATION OF RISK
 
     Financial instruments that potentially subject the Company to concentration
of credit risk consist primarily of cash equivalents, short-term investments and
trade accounts receivable. Cash equivalents and short-term investments, which
primarily comprised of investments in money market funds and municipal debt
instruments, are maintained with high quality institutions and the composition
and maturities are regularly monitored by management.
 
     The following table summarizes the percentage of net revenues accounted for
by the Company's significant customers for any year in which a customer or
distributor accounts for 10% or more of revenues.
 
<TABLE>
<CAPTION>
                                              YEAR ENDED DECEMBER 31,
                                              ------------------------
                                              1996      1997      1998
                                              ----      ----      ----
<S>                                           <C>       <C>       <C>
Compaq Computer.............................   12%       --        --
Dynax.......................................   --        13%       16%
Eastbase....................................   --        13%       --
Universe Electron...........................   13%       --        --
Shinco......................................   --        --        15%
</TABLE>
 
     A majority of the Company's trade receivables are derived from sales to
manufacturers of computer systems. The Company generally extends 30-day credit
terms to its customers, which is consistent with industry business practices.
The Company performs ongoing credit evaluations of its customers' financial
condition and generally, requires letters of credit from international
customers. The Company maintains an
 
                                       40
<PAGE>   42
                              ESS TECHNOLOGY, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
allowance for doubtful accounts on its receivables based upon the expected
collectibility of all accounts receivable. At December 31, 1997 and 1998,
approximately 35% and 36%, respectively, of trade accounts receivable represent
amounts due from two customers.
 
 9. COMMITMENTS AND CONTINGENCIES
 
     In November 1995, the Company entered into agreements with two wafer
foundries, TSMC and UMC, in which the Company secured access to additional
manufacturing capacity and to certain technology.
 
     Under the TSMC agreement, in exchange for TSMC's increased wafer capacity
commitments, the Company committed to pay approximately $32 million over two
years as deposits for wafers through 1999. The cash requirements associated with
this agreement were paid by the Company in the form of two $16 million payments
in 1996 and 1997. The payments can be applied to offset wafers purchased from
1996 to 1999 provided that the Company purchases not less than a certain
specified number of wafers during each of the four years ending December 31,
1999. As of December 31, 1998, $21.8 million of the payment was applied and
$10.1 million was included in other assets.
 
     Under the UMC agreement, the Company entered into a joint venture
arrangement with UMC, together with other US semiconductor companies, to build a
separate semiconductor manufacturing facility located in Taiwan at an estimated
cost of $1 billion. The Company has invested approximately $24.6 million in the
joint venture. Under the terms of the agreement, the Company received a 5%
equity ownership in the joint venture company and certain capacity rights. The
facility was scheduled to open during 1998, but several fires during
construction have delayed opening. UMC has stated that it expects insurance will
cover its recent fire losses at the joint venture foundry. On October 17, 1998,
the Company entered into an agreement with UMC to sell UMC approximately 63.8
million shares of the joint venture for a purchase price of $22.4 million which
approximated net book value. Following the sale, the Company continues to hold 6
million shares of stock.
 
     The Company is involved in litigation in the normal course of operations.
Management believes that the outcome of the litigation will not have a material
adverse effect on the Company's financial position or results of operations.
 
10. ACQUISITIONS AND RELATED CHARGES
 
     On June 11, 1997, the Company acquired Platform Technologies, Inc.
("Platform"), a California based company, for approximately 2.54 million shares
of the Company's Common Stock including approximately 954,000 options with a
value of $32.7 million. Platform, a wholly owned subsidiary of the Company, is
developing integrated circuits for the PC audio market incorporating the PCI
standard.
 
     On January 3, 1996, the Company acquired VideoCore Technology, Inc.
("VideoCore"), a California based company, for approximately 525,000 shares of
the Company's Common Stock and $5.7 million in cash. VideoCore, a wholly owned
subsidiary of the Company, is developing integrated circuits which incorporates
advanced compression technology for digital video products.
 
     On March 29, 1996, the Company acquired OSEE Technology, Inc. ("OSEE"), a
California based company, for approximately 217,000 shares of the Company's
Common Stock and $3.6 million in cash. Also outstanding stock options of OSEE
were exchanged for 85,000 stock options of the Company. OSEE, a wholly owned
subsidiary of the Company, is a developer of advanced fax/modem algorithm
technology which enables the Company to provide modem and computer fax/modem
applications on the Company's multimedia processor.
 
                                       41
<PAGE>   43
                              ESS TECHNOLOGY, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
     The purchase price of these companies was allocated to assets acquired and
liabilities assumed based upon the book value of VideoCore's, OSEE's and
Platform's current assets, equipment and liabilities, which management believes
approximates their fair value, and independent appraisal for all other
identifiable assets as follows:
 
<TABLE>
<CAPTION>
                                                      VIDEOCORE
                                                       & OSEE         PLATFORM
                                                      ---------    --------------
                                                            (IN THOUSANDS)
<S>                                                   <C>          <C>
Research and development in-process.................   $30,355        $22,200
Technical infrastructure............................        --          7,245
Covenants not to compete............................     4,600          6,100
Current assets......................................        12          3,209
Property and equipment..............................       120            222
Current liabilities assumed.........................      (607)          (369)
Other liabilities assumed...........................    (1,541)        (5,204)
                                                       -------        -------
                                                        32,939         33,403
Acquisition costs...................................      (299)          (700)
                                                       -------        -------
Value of consideration for acquisition..............   $32,640        $32,703
                                                       =======        =======
</TABLE>
 
     These acquisitions were recorded using the purchase method of accounting
and accordingly, the results of operations and cash flows of such acquisitions
have been included from the applicable dates of acquisition. Acquired research
and development in-process aggregating $22.2 million for the Platform
acquisition and $30.4 million for the VideoCore and OSEE acquisitions were
charged in the second quarter of 1997 and in the first quarter of 1996,
respectively. Additionally, the pro forma effect of the 1996 and 1997
acquisitions was not significant on the Company's reported operating results for
the fiscal years 1996 or 1997.
 
11. RELATED PARTY TRANSACTION
 
     Fred S.L. Chan, the Company's Chief Executive Officer, President and
Chairman of the Board of Directors and his spouse Annie M.H. Chan, a director of
the Company, announced on April 28, 1998, that they would be purchasing between
$5 and $10 million of the Company's common stock on the open market. As of
December 31, 1998, such purchases had totaled $1.4 million representing 241,000
shares at prices ranging from $5.15 to $6.56.
 
                                       42
<PAGE>   44
 
SELECTED QUARTERLY OPERATING RESULTS (UNAUDITED)
 
     The following table presents unaudited quarterly financial information for
each of the Company's last eight quarters. This information has been derived
from the Company's unaudited financial statements and has been prepared on the
same basis as the audited Consolidated Financial Statements appearing elsewhere
in this Form 10-K. In the opinion of management, all necessary adjustments,
consisting only of normal recurring adjustments, have been included to present
fairly the quarterly results.
 
<TABLE>
<CAPTION>
                                                             1997                                       1998
                                           ----------------------------------------   ----------------------------------------
                                           MAR. 31    JUNE 30   SEPT. 30   DEC. 31    MAR. 31   JUNE 30    SEPT. 30   DEC. 31
                                           --------   -------   --------   --------   -------   --------   --------   --------
                                                                  (IN THOUSANDS, EXCEPT PER SHARE DATA)
<S>                                        <C>        <C>       <C>        <C>        <C>       <C>        <C>        <C>
Net revenues.............................  $ 81,468   $45,142   $52,172    $ 70,735   $52,876     34,835    52,309      78,232
Cost of revenues.........................    41,772   27,220     35,200      67,668    49,146     33,262    43,683      56,326
                                           --------   -------   -------    --------   -------   --------   -------    --------
  Gross profit...........................    39,696   17,922     16,972       3,067     3,730      1,573     8,626      21,906
Operating expenses:
  Research and development...............     5,571    7,057      8,343       8,501     8,092      6,933     8,134       7,370
  Research and development in-process....        --   22,200         --          --        --         --        --          --
  Selling, general and administrative....     5,611    5,560      6,303       7,722     9,029      8,632     8,815       9,813
                                           --------   -------   -------    --------   -------   --------   -------    --------
Operating income (loss)..................    28,514   (16,895)    2,326     (13,156)  (13,391)   (13,992)   (8,323)      4,723
Nonoperating income, net.................       640      806        417         320       369        347       466         296
                                           --------   -------   -------    --------   -------   --------   -------    --------
Income (loss) before income taxes........    29,154   (16,089)    2,743     (12,836)  (13,022)   (13,645)   (7,857)      5,019
Provision for (benefit from) income
  taxes..................................    11,327    2,284      1,025        (798)     (669)      (683)     (388)        251
                                           --------   -------   -------    --------   -------   --------   -------    --------
Net income (loss)........................  $ 17,827   $(18,373) $ 1,718    $(12,038)  $(12,353) $(12,962)  $(7,469)   $  4,768
                                           ========   =======   =======    ========   =======   ========   =======    ========
Net income (loss) per share -- basic.....  $   0.46   $(0.47)   $  0.04    $  (0.30)  $ (0.30)  $  (0.32)  $ (0.18)   $   0.12
                                           ========   =======   =======    ========   =======   ========   =======    ========
Net income (loss) per share -- diluted...  $   0.43   $(0.47)   $  0.04    $  (0.30)  $ (0.30)  $  (0.32)  $ (0.18)   $   0.11
                                           ========   =======   =======    ========   =======   ========   =======    ========
Shares used in calculating net income
  (loss) per share -- basic..............    38,440   38,990     40,376      40,537    40,776     40,967    41,094      40,991
                                           ========   =======   =======    ========   =======   ========   =======    ========
Shares used in calculating net income
  (loss) per share -- diluted............    41,469   38,990     43,390      40,537    40,776     40,967    41,094      44,566
                                           ========   =======   =======    ========   =======   ========   =======    ========
</TABLE>
 
     The following table sets forth the above quarterly financial information as
a percentage of net revenues:
 
<TABLE>
<CAPTION>
                                                               1997                                     1998
                                              --------------------------------------   --------------------------------------
                                              MAR. 31   JUNE 30   SEPT. 30   DEC. 31   MAR. 31   JUNE 30   SEPT. 30   DEC. 31
                                              -------   -------   --------   -------   -------   -------   --------   -------
<S>                                           <C>       <C>       <C>        <C>       <C>       <C>       <C>        <C>
Net revenues................................   100.0%    100.0%    100.0%     100.0%    100.0%    100.0%    100.0%     100.0%
Cost of revenues............................    51.3      60.3      67.5       95.7      92.9      95.5      83.5       72.0
                                               -----     -----     -----      -----     -----     -----     -----      -----
  Gross margin..............................    48.7      39.7      32.5        4.3       7.1       4.5      16.5       28.0
Operating expenses:
  Research and development..................     6.8      15.6      16.0       12.0      15.3      19.9      15.5        9.4
  Research and development in-process.......      --      49.2        --         --        --        --        --         --
  Selling, general and administrative.......     6.9      12.3      12.1       10.9      17.1      24.8      16.9       12.6
                                               -----     -----     -----      -----     -----     -----     -----      -----
Operating income (loss).....................    35.0     (37.4)      4.4      (18.6)    (25.3)    (40.2)    (15.9)       6.0
Nonoperating income, net....................     0.8       1.8       0.8        0.5       0.7       1.0       0.9        0.4
                                               -----     -----     -----      -----     -----     -----     -----      -----
Income (loss) before income taxes...........    35.8     (35.6)      5.2      (18.1)    (24.6)    (39.2)    (15.0)       6.4
Provision for (benefit from) income taxes...    13.9       5.1       2.0       (1.1)     (1.2)     (2.0)     (0.7)       0.3
                                               -----     -----     -----      -----     -----     -----     -----      -----
Net income (loss)...........................    21.9%    (40.7)%     3.2%     (17.0)%   (23.4)%   (37.2)%   (14.3)%      6.1%
                                               =====     =====     =====      =====     =====     =====     =====      =====
</TABLE>
 
ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
FINANCIAL DISCLOSURES
 
     Not applicable.
 
                                       43
<PAGE>   45
 
                                    PART III
 
     Certain information required by Part III is omitted from this Report since
the Company plans to file with the Securities and Exchange Commission the
definitive proxy statement for its 1999 Annual Meeting of Shareholders (the
"Proxy Statement") not later than 120 days after the end of the fiscal year
covered by this Report, and certain information included therein is incorporated
herein by reference.
 
ITEM 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT
 
     The information concerning the Company's directors required by this Item is
incorporated by reference in the Company's Proxy Statement which the Company
will file with the Commission not later than 120 days after its fiscal year-end.
 
     The following table sets forth certain information regarding the Company's
current executive officers:
 
<TABLE>
<CAPTION>
                 NAME                    AGE                      POSITION
                 ----                    ---                      --------
<S>                                      <C>   <C>
Fred S.L. Chan.........................  51    President, Chief Executive Officer and
                                               Chairman of the Board of Directors
Dale R. Lindly.........................  39    Vice President of Finance, Chief Financial
                                               Officer and Secretary
Robert L. Blair........................  51    Executive Vice President, Operations
Frank Effler...........................  52    Vice President, Sales and Marketing -- PC
                                               Products
Johnston Chen..........................  38    Vice President, Sales -- Consumer Products
Howard Hideshima.......................  39    Controller and Chief Accounting Officer
</TABLE>
 
     Mr. Chan joined the Company in November 1985 as President and served as
such until October 1996 and then began to serve as President again since
February 1997. Mr. Chan has been a director since January 1986. He was appointed
Chairman of the Board of Directors in October 1992 and Chief Executive Officer
in June 1994. Mr. Chan has been serving as President since February 1997. Mr.
Chan served as Secretary of the Company from October 1992 to August 1995 and its
Chief Financial Officer from October 1992 to May 1995. From 1984 to 1985, Mr.
Chan was founder, President and Chief Executive Officer of AC Design Inc., a
VLSI chip design center providing CAD, engineering and design services. From
1982 to 1984, he was co-founder, President and Chief Executive Officer of CADCAM
Technology, Inc., a company in the business of CAE systems development. Mr. Chan
holds B.S.E.E. and M.S.C. degrees from the University of Hawaii. Mr. Chan is the
husband of Annie M. H. Chan, a director of the Company.
 
     Mr. Lindly has been Vice President of Finance, Chief Financial Officer and
Secretary of the Company since September 1998. From February 1997 to August
1998, he was Vice President and Corporate Controller at S3, Inc. From September
1995 to January 1997, he was Vice President Finance and Chief Financial Officer
at Echelle, Inc. From September 1990 to August 1995, he was Director of Finance
at Adaptec, Inc. and from May 1986 to August 1990, he was Vice President Finance
and Chief Financial Officer of International Microcircuits, Inc. Mr. Lindly
holds a B.S. degree in Business from San Jose State University.
 
     Mr. Blair has been Executive Vice President, Operations of the Company
since April 1997. From December 1994 to March 1997, he was Vice President of
Operations of the Company. From December 1991 to November 1994, he was Senior
Vice President Operations (Software Packaging & Printing Division) of Logistix
Corporation, a software turnkey company, and from 1989 to November 1991, he was
Vice President and co-owner of Rock Canyon Investments, a real estate
development planning firm in California. From 1986 to 1989, he held various
positions at Xidex Corporation, a computer diskette manufacturer, including
President/General Manager, at XEMAG, a division of Xidex Corporation. From 1973
to 1986 he was Vice President, High Reliability Operations at Precision
Monolithics, Inc.
 
     Mr. Effler has been Vice President, Sales and Marketing -- PC Products of
the Company since April 1998. From October 1993 to March 1998, he was Director
of Sales and Marketing, Flat Panel Display Division at Hitachi America, Ltd.
From April 1992 to September 1993, he was Area Sales Manager of the western
United States at Hitachi America Ltd. From 1988 to 1992, he was a regional sales
manager for
 
                                       44
<PAGE>   46
 
Toshiba America Electronic Components. Mr. Effler holds a B.A. degree from
California State University at Northridge.
 
     Mr. Chen has been Vice President of Consumer Products of the Company since
January 1998. From January 1997 to December 1997, he was Vice President of APAC
Sales of the Company. From February 1995 to December 1996, he was Director of
APAC Sales of the Company. Prior to joining the Company, he was co-owner of
Internet Corporation, a semiconductor sales representation company for the Far
East market, and served as Director of Sales and Marketing from February 1992 to
February 1995. From 1988 to 1992, he was Product Marketing Manager at FIFO
Division of Integrated Device Technology. From 1983 to 1988, Mr. Chen held
various engineering, marketing, and management positions at PMI Division of
Analog Devices, Inc., Siliconix, and Soletron. Mr. Chen holds a B.S.E.E. degree
from San Jose State University and an MBA degree from Santa Clara University.
 
     Mr. Hideshima has been Chief Accounting Officer of the Company since July
1997 and Controller of the Company since December 1994. Prior to joining the
Company, he was Controller of Hoya MicroMask, Inc., a semiconductor mask company
from August 1991 to November 1994 and Accounting Manager at Hoya Corporation USA
from July 1990 to July 1991. From June 1985 through June 1990, Mr. Hideshima was
an auditor with Arthur Andersen & Company. Mr. Hideshima holds a MBA degree from
San Francisco State University and BS degree in Business from University of
California -- Berkeley.
 
     The information concerning compliance with Section 16 of the Securities
Exchange Act of 1934 is incorporated by reference to the section in the
Company's proxy statement entitled "Compliance under Section 16(a) of the
Securities Exchange Act of 1934."
 
ITEM 11. EXECUTIVE COMPENSATION
 
     The information required by this Item is incorporated by reference to the
sections in the Company's Proxy Statement entitled "Executive Compensation,"
which the Company will file with the Commission not later than 120 days after
its fiscal year-end.
 
ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT
 
     The information required by this Item is incorporated by reference in the
Company's Proxy Statement which the Company will file with the Commission not
later than 120 days after its fiscal year-end.
 
ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS
 
     The information required by this Item is incorporated by reference in the
Company's Proxy Statement which the Company will file with the Commission not
later than 120 days after its fiscal year-end.
 
                                       45
<PAGE>   47
 
                                    PART IV
 
ITEM 14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 8-K
 
     (a)(1)(2)FINANCIAL STATEMENTS AND SCHEDULES.
              The financial statements and schedules filed as part of this
              report are listed in Item 8 on page 24.
 
            (3) EXHIBITS
 
<TABLE>
<CAPTION>
    EXHIBIT
    NUMBER                           EXHIBIT TITLE
    -------                          -------------
    <C>       <S>
      2.01    Agreement and Plan of Reorganization dated December 12, 1995
              among Registrant, ESS Acquisition Corporation and VideoCore
              Technology, Inc. ("VideoCore") (Incorporated herein by
              reference to Exhibit 2.1 to the Registrant's Current Report
              on Form 8-K dated January 17, 1996 (the "Form 8-K")).
      2.02    Agreement of Merger dated as of January 3, 1996 among
              Registrant, ESS Acquisition Corporation and VideoCore.
              (Incorporated herein by reference to Exhibit 2.2 to the Form
              8-K).
      2.03    First Amended and Restated Agreement and Plan of
              Reorganization dated as of April 27, 1997 among Registrant,
              EP Acquisition Corporation and Platform Technologies, Inc.
              (Incorporated herein by reference to Exhibit 2.1 to the
              Registrant's Current Report on Form 8-K dated April 30,
              1997).
      3.01    Registrant's Articles of Incorporation (Incorporated herein
              by reference to Exhibit 3.01 to the Registrant's Form S-1
              registration statement (File No. 33-95388) declared
              effective by the Securities and Exchange Commission on
              October 5, 1995 (the "Form S-1")).
      3.02    Registrant's Bylaws as amended (Filed herewith).
      4.01    Registrant's Registration Rights Agreement dated May 28,
              1993 among the Registrant and certain security holders
              (Incorporated herein by reference to Exhibit 10.07 to the
              Form S-1).
     10.01    Registrant's 1986 Stock Option Plan and related documents
              (Incorporated herein by reference to Exhibit 10.01 to the
              Form S-1).*
     10.02    Registrant's 1992 Stock Option Plan and related documents
              (Incorporated herein by reference to Exhibit 10.02 to the
              Form S-1).*
     10.03    Registrant's 1995 Equity Incentive Plan and related
              documents as amended (Filed herewith).*
     10.04    Registrant's 1995 Directors Stock Option Plan and related
              documents (Incorporated herein by reference to Exhibit 10.04
              to the Form S-1).*
     10.05    Registrant's 1995 Employee Stock Purchase Plan and related
              documents as amended (Filed herewith).*
     10.06    Registrant's Amended 401(k) Plan (Incorporated herein by
              reference to Exhibit 10.06 to the Form S-1).*
     10.11    Form of Indemnity Agreement entered into by Registrant with
              each of its directors and executive officers (Incorporated
              herein by reference to Exhibit 10.11 to the Form S-1).
     10.18    Foundry Agreement dated March 29, 1993 between Registrant
              and Integrated Circuit Works Incorporated (Incorporated
              herein by reference to Exhibit 10.18 to the Form S-1).**
     10.19    Purchase Agreement dated June 17, 1994 between Compaq
              Computer Corporation and Registrant (Incorporated herein by
              reference to Exhibit 10.19 to the Form S-1).**
     10.20    International Distributorship Agreement dated July 1, 1994
              between Registrant and Universe Electron Corporation
              (Incorporated herein by reference to Exhibit 10.20 to the
              Form S-1).
     10.21    Option I Agreement between Registrant and Taiwan
              Semiconductor Manufacturing Co., Ltd. ("TSMC") dated
              November 30, 1995, as amended December 28, 1995.
              (Incorporated herein by reference to Exhibit 10.21 to the
              Registrant's Annual Report on Form 10-K, dated February 29,
              1996 as amended March 29, 1996 (the "1995 Form 10-K").**
     10.22    Option II Agreement between Registrant and TSMC dated
              November 30, 1995. (Incorporated herein by reference to
              Exhibit 10.22 to the 1995 Form 10-K).**
</TABLE>
 
                                       46
<PAGE>   48
 
<TABLE>
<CAPTION>
    EXHIBIT
    NUMBER                           EXHIBIT TITLE
    -------                          -------------
    <C>       <S>
     10.23    Foundry Venture Agreement between Registrant and United
              Microelectronics Corporation ("UMC") dated November 28,
              1995, as amended January 31, 1996. (Incorporated herein by
              reference to Exhibit 10.23 to the 1995 Form 10-K).**
     10.24    FabVen Foundry Capacity Agreement among FabVen, UMC and
              Registrant dated November 28, 1995. (Incorporated herein by
              reference to Exhibit 10.24 to the 1995 Form 10-K).**
     10.25    Form of Employment and Non-Competition Agreement among the
              Registrant, VideoCore and Jan Fandrianto dated December 12,
              1995. (Incorporated herein by reference to Exhibit 2.1 to
              the Form 8-K).*
     10.26    Form of Employment and Non-Competition Agreement among the
              Registrant, VideoCore and Chi-Shin Wang dated December 12,
              1995. (Incorporated herein by reference to Exhibit 21 to the
              Form 8-K).*
     10.27    Form of Employment Agreement and Promissory Note among the
              Registrant and John H. Barnet dated August 22 and September
              16, 1996, respectively. (Incorporated herein by reference to
              Exhibit 10.27 to the Registrant's Report on Form 10-Q, dated
              November 14, 1996.)*
     10.30    1997 Equity Incentive Plan and related agreements, as
              amended (Filed herewith).*
     11.01    Computation of Net Income Per Share.
     21.01    List of Registrant's subsidiaries.
     23.01    Consent of Independent Accountants.
     27.01    Financial Data Schedule.
</TABLE>
 
- ---------------
  * Represents a management contract or compensatory plan of arrangement.
 
 ** Confidential treatment has been granted with respect to certain portions of
    this agreement.
 
     (b) Reports on Form 8-K: The Company did not file a report on Form 8-K
during the quarter ended December 31, 1998.
 
     With the exception of the information incorporated by reference to the
Company's Proxy Statement for the 1999 Annual Meeting of Shareholders in Items
10, 11, 12 and 13 of Part III, the Proxy Statement is not deemed to be filed as
part of this Report.
 
                                       47
<PAGE>   49
 
                                   SIGNATURES
 
     Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report on Form 10-K to be signed on its behalf
by the undersigned, thereunto duly authorized.
 
                                          ESS TECHNOLOGY, INC.
                                          (Registrant)
 
Date: March 31, 1999                      By:      /s/ FRED S.L. CHAN
                                            ------------------------------------
                                                       Fred S.L. Chan
                                             President, Chief Executive Officer
                                                 and Chairman of the Board
 
Date: March 31, 1999                      By:      /s/ DALE R. LINDLY
                                            ------------------------------------
                                                       Dale R. Lindly
                                                 Vice President of Finance,
                                                Chief Financial Officer and
                                                          Secretary
 
Date: March 31, 1999                      By:    /s/ HOWARD N. HIDESHIMA
                                            ------------------------------------
                                                    Howard N. Hideshima
                                                       Controller and
                                                  Chief Accounting Officer
 
                                       48
<PAGE>   50
 
                               POWER OF ATTORNEY
 
     KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature
appears below hereby constitutes and appoints Fred S.L. Chan and Dale R. Lindly,
jointly and severally, his or her true and lawful attorneys-in-fact, each with
full power of substitution, for him or her in any and all capacities, to sign
any and all amendments to this Annual Report on Form 10-K, and to file the same,
with all exhibits thereto and all documents in connection therewith, with the
Securities and Exchange Commission, hereby ratifying and confirming all that
each of said attorneys-in-fact or any of them, or his or their substitute or
substitutes, may lawfully do or cause to be done or by virtue hereof.
 
     Pursuant to the requirements of the Securities Exchange Act of 1934, this
registration statement has been signed by the following persons in the
capacities and on the dates indicated.
 
<TABLE>
<CAPTION>
                   SIGNATURE                                     TITLE                       DATE
- ------------------------------------------------  ------------------------------------  --------------
<S>                                               <C>                                   <C>
 
               /s/ FRED S.L. CHAN                  President, Chief Executive Officer   March 31, 1999
- ------------------------------------------------      and Chairman of the Board of
                 Fred S.L. Chan                      Directors (Principal Executive
                                                                Officer)
 
               /s/ DALE R. LINDLY                    Vice President of Finance and      March 31, 1999
- ------------------------------------------------      Chief Financial Officer and
                 Dale R. Lindly                      Secretary (Principal Financial
                                                                Officer)
 
            /s/ HOWARD N. HIDESHIMA                 Controller and Chief Accounting     March 31, 1999
- ------------------------------------------------                Officer
              Howard N. Hideshima                    (Principal Accounting Officer)
 
              /s/ ANNIE M.H. CHAN                               Director                March 31, 1999
- ------------------------------------------------
                Annie M.H. Chan
 
                 /s/ DOMINIC NG                                 Director                March 31, 1999
- ------------------------------------------------
                   Dominic Ng
 
                 /s/ ILBOK LEE                                  Director                March 31, 1999
- ------------------------------------------------
                   Ilbok Lee
 
                /s/ PETER T. MOK                                Director                March 31, 1999
- ------------------------------------------------
                  Peter T. Mok
 
                /s/ MATTHEW FONG                                Director                March 31, 1999
- ------------------------------------------------
                  Matthew Fong
</TABLE>
 
                                       49
<PAGE>   51
 
                               INDEX TO EXHIBITS
 
<TABLE>
<CAPTION>
    EXHIBIT
    NUMBER                           EXHIBIT TITLE
    -------                          -------------
    <C>       <S>
      2.01    Agreement and Plan of Reorganization dated December 12, 1995
              among Registrant, ESS Acquisition Corporation and VideoCore
              Technology, Inc. ("VideoCore") (Incorporated herein by
              reference to Exhibit 2.1 to the Registrant's Current Report
              on Form 8-K dated January 17, 1996 (the "Form 8-K")).
      2.02    Agreement of Merger dated as of January 3, 1996 among
              Registrant, ESS Acquisition Corporation and VideoCore.
              (Incorporated herein by reference to Exhibit 2.2 to the Form
              8-K).
      2.03    First Amended and Restated Agreement and Plan of
              Reorganization dated as of April 27, 1997 among Registrant,
              EP Acquisition Corporation and Platform Technologies, Inc.
              (Incorporated herein by reference to Exhibit 2.1 to the
              Registrant's Current Report on Form 8-K dated April 30,
              1997).
      3.01    Registrant's Articles of Incorporation (Incorporated herein
              by reference to Exhibit 3.01 to the Registrant's Form S-1
              registration statement (File No. 33-95388) declared
              effective by the Securities and Exchange Commission on
              October 5, 1995 (the "Form S-1")).
      3.02    Registrant's Bylaws as amended (Filed herewith).
      4.01    Registrant's Registration Rights Agreement dated May 28,
              1993 among the Registrant and certain security holders
              (Incorporated herein by reference to Exhibit 10.07 to the
              Form S-1).
     10.01    Registrant's 1986 Stock Option Plan and related documents
              (Incorporated herein by reference to Exhibit 10.01 to the
              Form S-1).*
     10.02    Registrant's 1992 Stock Option Plan and related documents
              (Incorporated herein by reference to Exhibit 10.02 to the
              Form S-1).*
     10.03    Registrant's 1995 Equity Incentive Plan and related
              documents as amended (Filed herewith).*
     10.04    Registrant's 1995 Directors Stock Option Plan and related
              documents (Incorporated herein by reference to Exhibit 10.04
              to the Form S-1).*
     10.05    Registrant's 1995 Employee Stock Purchase Plan and related
              documents as amended (Filed herewith).*
     10.06    Registrant's Amended 401(k) Plan (Incorporated herein by
              reference to Exhibit 10.06 to the Form S-1).*
     10.11    Form of Indemnity Agreement entered into by Registrant with
              each of its directors and executive officers (Incorporated
              herein by reference to Exhibit 10.11 to the Form S-1).
     10.18    Foundry Agreement dated March 29, 1993 between Registrant
              and Integrated Circuit Works Incorporated (Incorporated
              herein by reference to Exhibit 10.18 to the Form S-1).**
     10.19    Purchase Agreement dated June 17, 1994 between Compaq
              Computer Corporation and Registrant (Incorporated herein by
              reference to Exhibit 10.19 to the Form S-1).**
     10.20    International Distributorship Agreement dated July 1, 1994
              between Registrant and Universe Electron Corporation
              (Incorporated herein by reference to Exhibit 10.20 to the
              Form S-1).
     10.21    Option I Agreement between Registrant and Taiwan
              Semiconductor Manufacturing Co., Ltd. ("TSMC") dated
              November 30, 1995, as amended December 28, 1995.
              (Incorporated herein by reference to Exhibit 10.21 to the
              Registrant's Annual Report on Form 10-K, dated February 29,
              1996 as amended March 29, 1996 (the "1995 Form 10-K").**
     10.22    Option II Agreement between Registrant and TSMC dated
              November 30, 1995. (Incorporated herein by reference to
              Exhibit 10.22 to the 1995 Form 10-K).**
     10.23    Foundry Venture Agreement between Registrant and United
              Microelectronics Corporation ("UMC") dated November 28,
              1995, as amended January 31, 1996. (Incorporated herein by
              reference to Exhibit 10.23 to the 1995 Form 10-K).**
     10.24    FabVen Foundry Capacity Agreement among FabVen, UMC and
              Registrant dated November 28, 1995. (Incorporated herein by
              reference to Exhibit 10.24 to the 1995 Form 10-K).**
</TABLE>
<PAGE>   52
 
<TABLE>
<CAPTION>
    EXHIBIT
    NUMBER                           EXHIBIT TITLE
    -------                          -------------
    <C>       <S>
     10.25    Form of Employment and Non-Competition Agreement among the
              Registrant, VideoCore and Jan Fandrianto dated December 12,
              1995. (Incorporated herein by reference to Exhibit 2.1 to
              the Form 8-K).*
     10.26    Form of Employment and Non-Competition Agreement among the
              Registrant, VideoCore and Chi-Shin Wang dated December 12,
              1995. (Incorporated herein by reference to Exhibit 21 to the
              Form 8-K).*
     10.27    Form of Employment Agreement and Promissory Note among the
              Registrant and John H. Barnet dated August 22 and September
              16, 1996, respectively. (Incorporated herein by reference to
              Exhibit 10.27 to the Registrant's Report on Form 10-Q, dated
              November 14, 1996.)*
     10.30    1997 Equity Incentive Plan and related agreements, as
              amended (Filed herewith).*
     11.01    Computation of Net Income Per Share.
     21.01    List of Registrant's subsidiaries.
     23.01    Consent of Independent Accountants.
     27.01    Financial Data Schedule.
</TABLE>
 
- ---------------
  * Represents a management contract or compensatory plan of arrangement.
 
 ** Confidential treatment has been granted with respect to certain portions of
    this agreement.
 
     (b) Reports on Form 8-K: The Company did not file a report on Form 8-K
during the quarter ended December 31, 1998.
 
     With the exception of the information incorporated by reference to the
Company's Proxy Statement for the 1999 Annual Meeting of Shareholders in Items
10, 11, 12 and 13 of Part III, the Proxy Statement is not deemed to be filed as
part of this Report.

<PAGE>   1

                                                                    EXHIBIT 3.02



                              AMENDED AND RESTATED

                                     BYLAWS

                                       OF

                              ESS TECHNOLOGY, INC.

                           (A California corporation)

                      (As Amended Through January 5, 1999)

<PAGE>   2

                                     BYLAWS
                                       OF
                              ESS TECHNOLOGY, INC.
                            A California corporation

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                             PAGE
                                                                             ----
<S>                                                                           <C>
ARTICLE I - OFFICES............................................................4

        Section 1.1:  Principal Office.........................................4
        Section 1.2:  Other Offices............................................4

ARTICLE II - DIRECTORS.........................................................4

        Section 2.1:  Exercise of Corporate Powers.............................4
        Section 2.2:  Number...................................................4
        Section 2.3:  Need Not Be Shareholders.................................5
        Section 2.4:  Compensation.............................................5
        Section 2.5:  Election and Term of Office..............................5
        Section 2.6:  Vacancies................................................5
        Section 2.7:  Removal..................................................6
        Section 2.8:  Powers and Duties........................................6

ARTICLE III - MEETINGS OF DIRECTORS............................................8

        Section 3.1:  Place of Meetings........................................8
        Section 3.2:  Regular Meetings.........................................8
        Section 3.3:  Special Meetings.........................................8
        Section 3.4:  Notice of Special Meetings...............................8
        Section 3.5:  Quorum...................................................9
        Section 3.6:  Conference Telephone.....................................9
        Section 3.7:  Waiver of Notice and Consent.............................9
        Section 3.8:  Action Without a Meeting.................................9
        Section 3.9:  Committees...............................................9

ARTICLE IV - COMMITTEES.......................................................10

        Section 4.1:  Appointment and Procedure...............................10
        Section 4.2:  Executive Committee Powers..............................10
        Section 4.3:  Powers of Other Committees..............................10
        Section 4.4:  Limitations on Powers of Committees.....................10

ARTICLE V - OFFICERS..........................................................11

        Section 5.1:  Election and Qualifications.............................11
        Section 5.2:  Term of Office and Compensation.........................11
        Section 5.3:  Chief Executive Officer.................................11
        Section 5.4:  Chairman of the Board...................................12
</TABLE>


                                      -2-

<PAGE>   3

<TABLE>
<CAPTION>
                                                                             PAGE
                                                                             ----
<S>                                                                           <C>
        Section 5.5:  President...............................................12
        Section 5.6:  President Pro Tem.......................................12
        Section 5.7:  Vice President..........................................12
        Section 5.8:  Secretary...............................................12
        Section 5.9:  Chief Financial Officer.................................13
        Section 5.10:  Instruments in Writing.................................14

ARTICLE VI - INDEMNIFICATION..................................................14

        Section 6.1:  Indemnification of Directors and Officers...............14
        Section 6.2:  Advancement of Expenses.................................14
        Section 6.3:  Non-Exclusivity of Rights...............................15
        Section 6.4:  Indemnification Contracts...............................15
        Section 6.5:  Effect of Amendment.....................................15

ARTICLE VII - MEETINGS OF, AND REPORTS TO, SHAREHOLDERS.......................15

        Section 7.1:  Place of Meetings.......................................15
        Section 7.2:  Annual Meetings.........................................15
        Section 7.3:  Special Meetings........................................16
        Section 7.4:  Notice of Meetings......................................16
        Section 7.5:  Consent to Shareholders' Meetings.......................17
        Section 7.6:  Quorum..................................................17
        Section 7.7:  Adjourned Meetings......................................18
        Section 7.8:  Voting Rights...........................................18
        Section 7.9:  Action by Written Consents..............................18
        Section 7.10:  Election of Directors..................................19
        Section 7.11:  Proxies................................................19
        Section 7.12:  Inspectors of Election.................................20
        Section 7.13:  Annual Reports.........................................20

ARTICLE VIII - SHARES AND SHARE CERTIFICATES..................................20

        Section 8.l:  Shares Held By the Company..............................20
        Section 8.2:  Certificates for Shares.................................20
        Section 8.3:  Lost Certificates.......................................21

ARTICLE IX - CONSTRUCTION OF BYLAWS WITH REFERENCE TO
        PROVISIONS OF LAW.....................................................21

        Section 9.1:  Bylaw Provisions Construed as Additional and 
                      Supplemental to Provisions of Law.......................21
        Section 9.2:  Bylaw Provisions Contrary to or Inconsistent 
                      with Provisions of Law.......21

ARTICLE X - CERTIFICATION, ADOPTION, AMENDMENT OR
        REPEAL OF BYLAWS......................................................21

        Section 10.1:  By Shareholders........................................21
        Section 10.2:  By the Board of Directors..............................22
        Section 10.3:  Certification and Inspection of Bylaws.................22
</TABLE>


                                      -3-

<PAGE>   4

                                     BYLAWS

                                       OF

                              ESS TECHNOLOGY, INC.

                           (A California corporation)

                      (As Amended Through January 5, 1999)



                                    ARTICLE I

                                     OFFICES

     Section 1.1: Principal Office. The principal executive office for the
transaction of the business of this corporation (the "Company") shall be located
at such place as the Board of Directors may from time to time decide. The Board
of Directors is hereby granted full power and authority to change the location
of the principal executive office from one location to another.

     Section 1.2: Other Offices. One or more branch or other subordinate offices
may at any time be fixed and located by the Board of Directors at such place or
places within or outside the State of California as it deems appropriate.

                                   ARTICLE II

                                    DIRECTORS

     Section 2.1: Exercise of Corporate Powers. Except as otherwise provided by
these Bylaws, by the Articles of Incorporation of the Company or by the laws of
the State of California now or hereafter in force, the business and affairs of
the Company shall be managed and all corporate powers shall be exercised by or
under the ultimate direction of a board of directors (the "Board of Directors").

     Section 2.2: Number: The authorized number of directors of the Company
shall be six (6). The authorized number of directors may be varied from time to
time by resolution of the Board of Directors, provided that the minimum
authorized number shall be not less than five (5) and the maximum authorized
number shall not be more than nine (9). Until changed by an amendment of this
Section by the shareholders of the Company, the authorized number of directors
of the Company may be varied by the Board of Directors, as opposed to being
fixed, within the range of the minimum and the maximum authorized numbers of
directors provided above. Any amendment to these Bylaws reducing such minimum
number of authorized directors to a number less than five (5) cannot be adopted
if the votes cast against its adoption at a meeting, or the shares not
consenting in the case of action by written consent, are equal to more than
16-2/3% of the outstanding shares entitled to vote.


<PAGE>   5

     Section 2.3: Need Not Be Shareholders. The directors of the Company need
not be shareholders of this Company.

     Section 2.4: Compensation. Directors and members of committees may receive
such compensation, if any, for their services as may be fixed or determined by
resolution of the Board of Directors. Nothing herein contained shall be
construed to preclude any director from serving the Company in any other
capacity and receiving compensation therefor.

     Section 2.5: Election and Term of Office. The directors shall be elected
annually by the shareholders at the annual meeting of the shareholders. The term
of office of the directors shall begin immediately after their election and
shall continue until the next annual meeting of the shareholders and until their
respective successors are elected. A reduction of the authorized number of
directors shall not shorten the term of any incumbent director or remove any
incumbent director prior to the expiration of such director's term of office.

     Section 2.6: Vacancies. A vacancy or vacancies on the Board of Directors
shall exist:

          (a)  in the case of the death of any director; or

          (b)  in the case of the resignation or removal of any director; or

          (c)  if the authorized number of directors is increased; or

          (d)  if the shareholders fail, at any annual meeting of shareholders
at which any director is elected, to elect the full authorized number of
directors at that meeting.

The Board of Directors may declare vacant the office of a director if he or she
is declared of unsound mind by an order of court or convicted of a felony or if,
within 60 days after notice of his or her election, he or she does not accept
the office. Any vacancy, except for a vacancy created by removal of a director
as provided in Section 2.7 hereof, may be filled by a person selected by a
majority of the remaining directors then in office, whether or not less than a
quorum, or by a sole remaining director. Vacancies occurring in the Board of
Directors by reason of removal of directors shall be filled only by approval of
shareholders. The shareholders may elect a director at any time to fill any
vacancy not filled by the directors. Any such election by the written consent of
shareholders, other than to fill a vacancy created by removal, requires the
consent of shareholders holding a majority of the outstanding shares entitled to
vote. If, after the filling of any vacancy by the directors, the directors then
in office who have been elected by the shareholders shall constitute less than a
majority of the directors then in office, any holder or holders of an aggregate
of 5% or more of the total number of shares at that time having the right to
vote for such directors may call a special meeting of shareholders to be held to
elect the entire Board of Directors. The term of office of any director then in
office shall terminate upon the election of such director's successor. Any
director may resign effective upon giving written notice to the Chairman of the
Board, if any, the President, the Secretary or the Board of Directors, unless
the notice specifies a later time for the effectiveness of such resignation.
After the notice is given and if the resignation is effective at a future time,
a successor may be elected or appointed to take office when the resignation
becomes effective.


                                      -5-

<PAGE>   6

     Section 2.7: Removal. The entire Board of Directors or any individual
director may be removed from office without cause by an affirmative vote of
shareholders holding a majority of the outstanding shares entitled to vote. If
the entire Board of Directors is not removed, however, then no individual
director shall be removed if the votes cast against removal of that director,
plus the votes not consenting in writing to such removal, would be sufficient to
elect that director if voted cumulatively in an election at which the following
were true:

          (a)  the same total number of votes were cast, or, if such action is
taken by written consent, all shares entitled to vote were voted; and

          (b)  the entire number of directors authorized at the time of the
director's most recent election were then being elected.

if any or all directors are so removed, new directors may be elected at the same
meeting or at a subsequent meeting. if at any time a class or series of shares
is entitled to elect one or more directors under authority granted by the
Articles of Incorporation, the provisions of this Section 2.7 shall apply to the
vote of that class or series and not to the vote of the outstanding shares as a
whole.

     Section 2.8: Powers and Duties. Without limiting the generality or extent
of the general corporate powers to be exercised by the Board of Directors
pursuant to Section 2.1 of these Bylaws, it is hereby provided that the Board of
Directors shall have full power with respect to the following matters:

          (a)  To purchase, lease and acquire any and all kinds of property,
real, personal or mixed, and at its discretion to pay therefor in money, in
property and/or in stocks, bonds, debentures or other securities of the Company.

          (b)  To enter into any and all contracts and agreements which in its
judgment may be beneficial to the interests and purposes of the Company.

          (c)  To fix and determine and to vary from time to time the amount or
amounts to be set aside or retained as reserve funds or as working capital of
the Company or for maintenance, repairs, replacements or enlargements of its
properties.

          (d)  To declare and pay dividends in cash, shares and/or property out
of any funds of the Company at the time legally available for the declaration
and payment of dividends on its shares.

          (e)  To adopt such rules and .regulations for the conduct of its
meetings and the management of the affairs of the Company as it may deem proper.

          (f)  To prescribe the manner in which and the person or persons by
whom any or all of the checks, drafts, notes, bills of exchange, contracts and
other corporate instruments shall be executed.


                                      -6-

<PAGE>   7

          (g)  To accept resignations of directors; to declare vacant the office
of a director as provided in Section 2.6 hereof; and, in case of vacancy in the
office of directors, to fill the same to the extent provided in Section 2.6
hereof.

          (h)  To create offices in addition to those for which provision is
made by law or these Bylaws; to elect and remove at pleasure all officers of the
Company, fix their terms of office, prescribe their titles, powers and duties,
limit their authority and fix their salaries in any way it may deem advisable
that is not contrary to law or these Bylaws.

          (i)  To designate one or more persons to perform the duties and
exercise the powers of any officer of the Company during the temporary absence
or disability of such officer.

          (j)  To appoint or employ and to remove at pleasure such agents and
employees as it may see fit, to prescribe their titles, powers and duties, limit
their authority and fix their salaries in any way it may deem advisable that is
not contrary to law or these Bylaws.

          (k)  To fix a time in the future, which shall not be more than 60 days
nor less than 10 days prior to the date of the meeting nor more than 60 days
prior to any other action for which it is fixed, as a record date for the
determination of the shareholders entitled to notice of and to vote at any
meeting, or entitled to receive any payment of any dividend or other
distribution, or allotment of any rights, or entitled to exercise any rights in
respect of any other lawful action; and in such case only shareholders of record
on the date so fixed shall be entitled to notice of and to vote at the meeting
or to receive the dividend, distribution or allotment of rights or to exercise
the rights, as the case may be, notwithstanding any transfer of any shares on
the books of the Company after any record date fixed as aforesaid. The Board of
Directors may close the books of the Company against transfers of shares during
the whole or any part of such period.

          (l)  To fix and locate from time to time the principal office for the
transaction of the business of the Company and one or more branch or other
subordinate offices of the Company within or without the State of California; to
designate any place within or without the State of California for the holding of
any meeting or meetings of the shareholders or the Board of Directors, as
provided in Sections 3.1 and 7.1 hereof; to adopt, make and use a corporate
seal, and to prescribe the forms of certificates for shares and to alter the
form of such seal and of such certificates from time to time as in its judgment
it may deem best, provided such seal and such certificates shall at all times
comply with the provisions of law now or hereafter in effect.

          (m)  To authorize the issuance of shares of stock of the Company in
accordance with the laws of the State of California and the Articles of
Incorporation.

          (n)  Subject to the limitation provided in Section 10.2 hereof, to
adopt, amend or repeal from time to time and at any time these Bylaws and any
and all amendments thereof.

          (o)  To borrow money, make guarantees of indebtedness or other
obligations of third parties and incur indebtedness on behalf of the Company,
including the power and authority to borrow money from any of the shareholders,
directors or officers of the Company; and to cause to be executed and delivered
therefor in the corporate name promissory notes, bonds, debentures, 


                                      -7-

<PAGE>   8

deeds of trust, mortgages, pledges (or other transfers of property as security
or collateral for a debt), or other evidences of debt and securities therefor;
and the note or other obligation given for any indebtedness of the Company,
signed officially by any officer or officers thereunto duly authorized by the
Board of Directors, shall be binding on the Company.

          (p)  To approve a loan of money or property to any officer or director
of the Company or any parent or subsidiary company, guarantee the obligation of
any such officer or director, or approve an employee benefit plan authorizing
such a loan or guaranty to any such officer or director; provided that, on the
date of approval of such loan or guaranty, the Company has outstanding shares
held of record by 100 or more persons. Such approval shall require a
determination by the Board of Directors that the loan or guaranty may reasonably
be expected to benefit the Company and must be by vote sufficient without
counting the vote of any interested director.

          (q)  Generally to do and perform every act and thing whatsoever that
may pertain to the office of a director or to a board of directors.


                                   ARTICLE III

                              MEETINGS OF DIRECTORS

     Section 3.1: Place of Meetings. Meetings (whether regular, special or
adjourned) of the Board of Directors of the Company shall be held at the
principal executive office of the Company or at any other place within or
outside the State of California which may be designated from time to time by
resolution of the Board of Directors or which is designated in the notice of the
meeting.

     Section 3.2: Regular Meetings. Regular meetings of the Board of Director
shall be held at such times as may be designated from time to time by resolution
of the Board of Directors. Notice of the time and place of all regular meetings
shall be given in the same manner as for special meetings, except that no such
notice need be given if the time and place of such meetings are fixed by the
Board of Directors.

     Section 3.3: Special Meetings. Special meetings of the Board of Directors
may be called at any time by the Chairman of the Board, if any, or the
President, or any Vice President, or the Secretary or by any two or more
directors.

     Section 3.4: Notice of Special Meetings. Special meetings of the Board of
Directors shall be held upon no less than 4 days' notice by mail or 48 hours'
notice delivered personally or by telephone or telegraph to each director.
Notice need not be given to any director who signs a waiver of notice or a
consent to holding the meeting or an approval of the minutes thereof, whether
before or after the meeting, or who attends the meeting without protesting,
prior thereto or at its commencement, the lack of notice to such director. MI
such waivers, consents and approvals shall be filed with the corporate records
or made a part of the minutes of the meeting. Any oral notice given personally
or by telephone may be communicated either to the director or to a person at the
home or office of the director who the person giving the notice has reason to


                                      -8-

<PAGE>   9

believe will promptly communicate it to the director. A notice or waiver of
notice need not specify the purpose of any meeting of the Board of Directors. If
the address of a director is not shown on the records of the Company and is not
readily ascertainable, notice shall be addressed to him or her at the city or
place in which meetings of the directors are regularly held. If a meeting is
adjourned for more than 24 hours, notice of any adjournment to another time or
place shall be given prior to the time of the adjourned meeting to all directors
not present at the time of adjournment.

     Section 3.5: Quorum. A majority of the authorized number of directors
constitutes a quorum of the Board of Directors for the transaction of business.
Every act or decision done or made by a majority of the directors present at a
meeting duly held at which a quorum is present is the act of the Board of
Directors subject to provisions of law relating to interested directors and
indemnification of agents of the Company. A majority of the directors present,
whether or not a quorum is present, may adjourn any meeting to another time and
place. A meeting at which a quorum is initially present may continue to transact
business notwithstanding the withdrawal of directors, if any action taken is
approved by at least a majority of the required quorum for such meeting.

     Section 3.6: Conference Telephone. Members of the Board of Directors may
participate in a meeting through use of conference telephone or similar
communications equipment, so long as all directors participating in such meeting
can bear one another. Participation in a meeting pursuant to this Section
constitutes presence in person at such meeting.

     Section 3.7: Waiver of Notice and Consent. The transactions of any meeting
of the Board of Directors, however called and noticed or wherever held, shall be
as valid as though had at a meeting duly held after regular call and notice if a
quorum is present, and if, either before or after the meeting, each of the
directors not present signs a written waiver of notice, a consent to holding
such meeting or an approval of the minutes thereof. Ml such waivers, consents
and approvals shall be filed with the corporate records or made a part of the
minutes of the meeting.

     Section 3.8: Action Without a Meeting. Any action required or permitted by
law to be taken by the Board of Directors may be taken without a meeting, if all
members of the Board of Directors shall individually or collectively consent in
writing to the taking of such action. Such written consent or consents shall be
filed with the minutes of the proceedings of the Board of Directors. Such action
by written consent shall have the same force and effect as a unanimous vote of
such directors at a duly held meeting.

     Section 3.9: Committees. The provisions of this Article apply also to
committees of the Board of Directors and action by such committees.


                                   ARTICLE IV

                                   COMMITTEES

     Section 4.1: Appointment and Procedure. The Board of Directors may, by
resolution adopted by a majority of the authorized number of directors, appoint
from among its members 


                                      -9-

<PAGE>   10

one or more committees, including without limitation an executive committee, an
audit committee and a compensation committee, of two or more directors. Each
committee may make its own rules of procedure subject to Section 3.9 hereof, and
shall meet as provided by such rules or by a resolution adopted by the Board of
Directors (which resolution shall take precedence). A majority of the members of
the committee shall constitute a quorum, and in every case the affirmative vote
of a majority of all members of the committee shall be necessary to the adoption
of any resolution.

     Section 4.2: Executive Committee Powers. During the intervals between the
meetings of the Board of Directors, the Executive Committee, if any, in all
cases in which specific directions shall not have been given by the Board of
Directors, shall have and may exercise all the powers and authority of the Board
of Directors in the management of the business and affairs of the Company in
such manner as the Executive Committee may deem best for the interests of the
Company.

     Section 4.3: Powers of Other Committees. Other committees shall have such
powers as are given them in a resolution of the Board of Directors.

     Section 4.4: Limitations on Powers of Committees. No committee shall have
the power to act with respect to:

          (a)  any action for which the laws of the State of California also
require shareholder approval or approval of the outstanding shares;

          (b)  the filling of vacancies on the Board of Directors or in any
committee;

          (c)  the fixing of compensation of the directors for serving on the
Board of Directors or on any committee;

          (d)  the amendment or repeal of these Bylaws or the adoption of new
Bylaws;

          (e)  the amendment or repeal of any resolution of the Board of
Directors which by its express terms is not amendable or repealable;

          (f)  a distribution to the shareholders of the Company. except at a
rate or in a periodic amount or within a price range as set forth in the
Articles of Incorporation or determined by the Board of Directors; and

          (g)  the appointment of other committees of the Board of Directors or
the members thereof.


                                    ARTICLE V

                                    OFFICERS

     Section 5.1: Election and Qualifications. The officers of the Company shall
consist of a President and/or a Chief Executive Officer, a Secretary, a Chief
Financial Officer and such other 


                                      -10-

<PAGE>   11

officers, including, but not limited to, a Chairman of the Board of Directors,
one or more Vice Presidents, a Treasurer, and Assistant Vice Presidents,
Assistant Secretaries and Assistant Treasurers, as the Board of Directors shall
deem expedient, who shall be chosen in such manner and hold their offices for
such terms as the Board of Directors may prescribe. Any number of offices may be
held by the same person. Any Vice President, Assistant Treasurer or Assistant
Secretary, respectively, may exercise any of the powers of the President, the
Chief Financial Officer or the Secretary, respectively, as directed by the Board
of Directors, and shall perform such other duties as are imposed upon him or her
by these Bylaws or the Board of Directors.

     Section 5.2: Term of Office and Compensation. The term of office and salary
of each of said officers and the manner and time of the payment of such salaries
shall be fixed and determined by the Board of Directors and may be altered by
said Board of Directors from time to time at its pleasure, subject to the
rights, if any, of any officer under any contract of employment. Any officer may
resign at any time upon written notice to the Company, without prejudice to the
rights, if any, of the Company under any contract to which the officer is a
party, if any vacancy occurs in any office of the Company, the Board of
Directors may appoint a successor to fill such vacancy.

     Section 5.3: Chief Executive Officer. Subject to the control of the Board
of Directors and such supervisory powers, if any, as may be given by the Board
of Directors, the powers and duties of the Chief Executive Officer of the
Company are:

          (a)  To act as the general manager and, subject to the control of the
Board of Directors, to have general supervision, direction and control of the
business and affairs of the Company.

          (b)  To preside at all meetings of the shareholders and, in the
absence of the Chairman of the Board of Directors or if there be no Chairman, at
all meetings of the Board of Directors.

          (c)  To call meetings of the shareholders and meetings of the Board of
Directors to be held at such times and, subject to the limitations prescribed by
law or by these Bylaws, at such places as he or she shall deem proper.

          (d)  To affix the signature of the Company to all deeds, conveyances,
mortgages, leases, obligations, bonds, certificates and other papers and
instruments in writing which have been authorized by the Board of Directors or
which, in the judgment of the Chief Executive Officer, should be executed on
behalf of the Company; to sign certificates for shares of stock of the Company;
and, subject to the direction of the Board of Directors, to have general charge
of the property of the Company and to supervise and control all officers, agents
and employees of the Company.

The President shall be the Chief Executive Officer of the Company unless the
Board of Directors shall designate the Chairman of the Board or another officer
to be the Chief Executive Officer. If there is no President, then the Chairman
of the Board shall be the Chief Executive Officer.


                                      -11-

<PAGE>   12

     Section 5.4: Chairman of the Board. The Chairman of the Board of Directors,
if there be one, shall have the power to preside at all meetings of the Board of
Directors and shall have such other powers and shall be subject to such other
duties as the Board of Directors may from time to time prescribe.

     Section 5.5: President. Subject to the supervisory powers of the Chief
Executive Officer, if not the President, and to such supervisory powers as may
be given by the Board of Directors to the Chairman of the Board, if one is
elected, or to any other officer, the President shall have the general powers
and duties of management usually vested in the office of president of a
corporation and shall have such other powers and duties as may be prescribed by
the Board of Directors or these Bylaws.

     Section 5.6: President Pro Tem. If neither the Chairman of the Board of
Directors, the President, nor any Vice President is present at any meeting of
the Board of Directors, a President pro tem may be chosen by the directors
present at the meeting to preside and act at such meeting. if neither the
President nor any Vice President is present at any meeting of the shareholders,
a President pro tem may be chosen by the shareholders present at the meeting to
preside at such meeting.

     Section 5.7: Vice President. The titles, powers and duties of the Vice
President or Vice Presidents, if any, shall be as prescribed by the Board of
Directors. In case of the resignation, disability or death of the President, the
Vice President, or one of the Vice Presidents, shall exercise all powers and
duties of the President. If there is more than one Vice President, the order in
which the Vice Presidents shall succeed to the powers and duties of the
President shall be as fixed by the Board of Directors.

     Section 5.8: Secretary. The powers and duties of the Secretary are:

          (a)  To keep a book of minutes at the principal executive office of
the Company, or such other place as the Board of Directors may order, of all
meetings of its directors and shareholders with the time and place of holding of
such meeting, whether regular or special, and, if special, how authorized, the
notice thereof given, the names of those present at directors' meetings, the
number of shares present or represented at shareholders' meetings and the
proceedings thereof. 9

          (b)  To keep the seal of the Company and to affix the same to all
instruments which may require it.

          (c)  To keep or cause to be kept at the principal executive office of
the Company, or at the office of the transfer agent or agents, a record of the
shareholders of the Company, giving the names and addresses of all shareholders
and the number and class of shares held by each, the number and date of
certificates issued for shares and the number and date of cancellation of every
certificate surrendered for cancellation.

          (d)  To keep a supply of certificates for shares of the Company, to
rill in all certificates issued, and to make a proper record of each such
issuance; provided that, so long as 


                                      -12-

<PAGE>   13

the Company shall have one or more duly appointed and acting transfer agents of
the shares, or any class or series of shares, of the Company, such duties with
respect to such shares shall be performed by such transfer agent or transfer
agents.

          (e)  To transfer upon the share books of the Company any and all
shares of the Company; provided that, so long as the Company shall have one or
more duly appointed and acting transfer agents of the shares, or any class or
series of shares, of the Company, such duties with respect to such shares shall
be performed by such transfer agent or transfer agents, and the method of
transfer of each certificate shall be subject to the reasonable regulations of
the transfer agent to whom the certificate is presented for transfer and, if the
Company then has one or more duly appointed and acting registrars, subject to
the reasonable regulations of the registrar to which a new certificate is
presented for registration; and, provided further, that no certificate for
shares of stock shall be issued or delivered or, if issued or delivered, shall
have any validity whatsoever until and unless it has been signed or
authenticated in the manner provided in Section 8.2 hereof.

          (f)  To make service and publication of all notices that may be
necessary or proper in connection with meetings of the Board of Directors of the
shareholders of the Company. In case of the absence, disability, refusal or
neglect of the Secretary to make service or publication of any notices, then
such notices may be served and/or published by the President or a Vice
President, or by any person thereunto authorized by either of them, or by the
Board of Directors, or by the holders of a majority of the outstanding shares of
the Company.

          (b)  Generally to do and perform all such duties as pertain to such
office and as may be required by the Board of Directors.

     Section 5.9: Chief Financial Officer. The powers and duties of the Chief
Financial Officer are:

          (a)  To supervise and control the keeping and maintaining of adequate
and correct accounts of the Company's properties and business transactions,
including accounts of its assets, liabilities, receipts, disbursements, gains,
losses, capital, surplus and shares. The books of account shall at all
reasonable times be open to inspection by any director.

          (b)  To have the custody of all funds, securities, evidences of
indebtedness and other valuable documents of the Company and, at his or her
discretion, to cause any or all thereof to be deposited for the account of the
Company with such depository as may be designated from time to time by the Board
of Directors.

          (c)  To receive or cause to be received, and to give or cause to be
given, receipts and acquaintances for monies paid in for the account of the
Company.

          (d)  To disburse, or cause to be disbursed, all funds of the Company
as may be directed by the President or the Board of Directors, taking proper
vouchers for such disbursements.


                                      -13-

<PAGE>   14

          (e)  To render to the President or to the Board of Directors, whenever
either may require, accounts of all transactions as Chief Financial Officer and
of the financial condition of the Company.

          (f)  Generally to do and perform all such duties as pertain to such
office and as may be required by the Board of Directors.

     Section 5.10: Instruments in Writing. All checks, drafts, demands for
money, notes and written contracts of the Company shall be signed by such
officer or officers, agent or agents, as the Board of Directors may from time to
time designate. No officer, agent, or employee of the Company shall have the
power to bind the Company by contract or otherwise unless authorized to do so by
these Bylaws or by the Board of Directors.


                                   ARTICLE VI

                                 INDEMNIFICATION

     Section 6.1: Indemnification of Directors and Officers. The Company shall
indemnify each person who was or is a party, or is threatened to be made a
party, to any threatened, pending or completed action or proceeding, whether
civil, criminal, administrative or investigative (a "Proceeding") by reason of
the fact that such person is or was a director or officer of the Company, or is
or was serving at the request of the Company as a director or officer of another
foreign or domestic corporation, partnership, joint venture, trust or other
enterprise, or was a director or officer of a foreign or domestic corporation
which was a predecessor corporation of the Company or of another enterprise at
the request of such predecessor corporation, to the fullest extent permitted by
the California Corporations Code, against all expenses, including, without
limitation, attorneys' fees and any expenses of establishing a right to
indemnification, judgments, fines, settlements and other amounts actually and
reasonably incurred in connection with such Proceeding, and such indemnification
shall continue as to a person who has ceased to be such a director or officer,
and shall inure to the benefit of the heirs, executors and administrators of
such person; provided, however, that the Company shall indemnify any such person
seeking indemnity in connection with a Proceeding (or part thereof) initiated by
such person only if such Proceeding (or part thereof) was authorized by the
Board of Directors of the Company.

     Section 6.2: Advancement of Expenses. The Company shall pay all expenses
incurred by such a director or officer in defending any Proceeding as they are
incurred in advance of its final disposition; provided, however, that the
payment of such expenses incurred by a director 01. officer in advance of the
final disposition of a Proceeding shall be made only upon receipt by the Company
of an agreement by or on behalf of such director or officer to repay such amount
if it shall be determined ultimately that such person is not entitled to be
indemnified under this Article VI or otherwise; and provided further that the
Company shall not be required to advance any expenses to a person against whom
the Company brings an action, alleging that such person committed an act or
omission not in good faith or that involved intentional misconduct or a knowing
violation of law, or that was contrary to the best interest of the Company, or
derived an improper personal benefit from a transaction.


                                      -14-

<PAGE>   15

     Section 6.3: Non-Exclusivity of Rights. The rights conferred on any person
in this Article VI shall not be deemed exclusive of any other rights that such
person may have or hereafter acquire under any statute, by law, agreement, vote
of shareholders or disinterested directors or otherwise, both as to action in an
official capacity and as to action in another capacity while holding such
office. Additionally, nothing in this Article VI shall limit the ability of the
Company, in its discretion, to indemnify or advance expenses to persons whom the
Company is not obligated to indemnify or advance expenses to pursuant to this
Article VI.

     Section 6.4: Indemnification Contracts. The Board of Directors is
authorized to cause the Company to enter into a contract with any director,
officer, employee or agent of the Company, or any person serving at the request
of the Company as a director, officer, employee or agent of another corporation,
partnership, joint venture, trust or other enterprise, providing for
indemnification rights equivalent to or, if the Board of Directors so
determines, greater than (to the extent permitted by the Company's Articles of
Incorporation and the California Corporations Code) those provided for in this
Article VI.

     Section 6.5: Effect of Amendment. Any amendment, repeal or modification of
any provision of this Article VI shall be prospective only, and shall not
adversely affect any right or protection conferred on a person pursuant to this
Article VI and existing at the time of such amendment, repeal or modification.


                                   ARTICLE VII

                    MEETINGS OF, AND REPORTS TO, SHAREHOLDERS

     Section 7.1: Place of Meetings. Meetings (whether regular, special or
adjourned) of the shareholders of the Company shall be held at the principal
executive office for the transaction of business of the Company, or at any place
within or outside the State of California which may be designated by written
consent of all the shareholders entitled to vote thereat, or which may be
designated by resolution of the Board of Directors. Any meeting shall be valid
wherever held if held by the written consent of all the shareholders entitled to
vote thereat, given either before or after the meeting and filed with the
Secretary of the Company.

     Section 7.2: Annual Meetings. The annual meetings of the shareholders shall
be held at the place provided pursuant to Section 7.1 hereof and at such time in
a particular year as may be designated by written consent of all the
shareholders entitled to vote thereat or which may be designated by resolution
of the Board of Directors of the Company. Said annual meetings shall be held for
the purpose of the election of directors, for the making of reports of the
affairs of the Company and for the transaction of such other business as may
properly come before the meeting.

     Section 7.3: Special Meetings. Special meetings of the shareholders for any
purpose or purposes whatsoever may be called at any time by the President, the
Chairman of the Board of Directors or by the Board of Directors, or by two or
more members thereof. or by one or more holders of shares entitled to cast not
less than 10% of the votes at the meeting. Upon request in writing sent by
registered mail to the Chairman of the Board of Directors, President, Vice
President or Secretary, or delivered to any such officer in person, by any
person entitled to call a 


                                      -15-

<PAGE>   16

special meeting of shareholders, it shall be the duty of such officer forthwith
to cause notice to be given to the shareholders entitled to vote that a meeting
will be held at a time requested by the person or persons calling the meeting,
which (except where called by the Board of Directors) shall be not less than 35
days nor more than 60 days after the receipt of such request. if the notice is
not given within 20 days after receipt of the request, the person entitled to
call the meeting may give the notice. Notices of meetings called by the Board of
Directors shall be given in accordance with Section 7.4.

     Section 7.4: Notice of Meetings. Notice of any meeting of shareholders
shall be given in writing not less than 10 (or, if sent by third-class mail, 30)
nor more than 60 days before the date of the meeting to each shareholder
entitled to vote thereat by the Secretary or an Assistant Secretary, or such
other person charged with that duty, or if there be no such officer or person,
or in case of his or her neglect or refusal, by any director or shareholder. The
notice shall state the place, date and hour of the meeting and (a) in the case
of a special meeting, the general nature of the business to be transacted, and
no other business may be transacted, or (b) in the case of the annual meeting,
those matters which the Board of Directors, at the time of the mailing of the
notice, intends to present for action by the shareholders, but any proper matter
may be presented at the meeting for such action, except that notice must be
given or waived in writing of any proposal relating to any shareholder approval
pursuant to Sections 310, 902, 1201, 1900 or 2007 of the California Corporations
Code. The notice of any meeting at which directors are to be elected shall
include the names of nominees intended at the time of the notice to be presented
by the Board of Directors for election. Notice of a shareholders' meeting or any
report shall be given to any shareholder, either (a) personally or (b) by
first-class mail, or, in case the Company has outstanding shares held of record
by 500 or more persons on the record date for the shareholders' meeting, notice
may be sent by third-class mail, or other means of written communication,
charges prepaid, addressed to such shareholder at such shareholder's address
appearing on the books of the Company or given by such shareholder to the
Company for the purpose of notice. If a shareholder gives no address or no such
address appears on the books of the Company, notice shall be deemed to have been
given if sent by mail or other means of written communication addressed to the
place where the principal executive office of the Company is located, or if
published at least once in a newspaper of general circulation in the county in
which such office is located. The notice or report shall be deemed to have been
given at the time when delivered personally or deposited in the United States
mail, postage prepaid, or sent by other means of written communication and
addressed as hereinbefore provided. An affidavit or declaration of delivery or
mailing of any notice or report in accordance with the provisions of this
Section 7.4, executed by the Secretary, Assistant Secretary or any transfer
agent, shall be prima facie evidence of the giving of the notice or report. if
any notice or report addressed to the shareholder at the address of such
shareholder appearing on the books of the Company is returned to the Company by
the United States Postal Service marked to indicate that the United States
Postal Service is unable to deliver the notice or report to the shareholder at
such address, all future notices or reports shall be deemed to have been duly
given without further mailing if the same shall be available for the shareholder
upon written demand of the shareholder at the principal executive office of the
Company for a period of one year from the date of the giving of the notice or
report to all other shareholders.


                                      -16-

<PAGE>   17

     Section 7.5: Consent to Shareholders' Meetings. The transactions of any
meeting of shareholders, however called and noticed, and wherever held, are as
valid as though they had taken place at a meeting duly held after regular call
and notice, if the following conditions are met:

          (a)  a quorum is present, either in person or by proxy, and

          (b)  either before or after the meeting, each of the shareholders
entitled to vote, who was not present in person or by proxy, signs a written
waiver of notice or a consent to the holding of such meeting or an approval of
the minutes thereof. All such waivers, consents or approvals shall be filed with
the corporate records or made a part of the minutes of the meeting.

     Attendance of a person at a meeting shall constitute both a waiver of
notice of and presence at such meeting, except: (a) when the person objects, at
the beginning of the meeting, to the transaction of any business because the
meeting is not lawfully called or convened; or ~) when the person expressly
makes an objection at some time during the meeting to the consideration of
matters required by law to be included in the notice but not so included.

     Neither the business to be transacted at, nor the purpose of, any regular
or special meeting of shareholders need be specified in any written waiver of
notice, consent to the holding of the meeting or approval of the minutes
thereof, except as to approval pursuant to Sections 310, 902, 1201, 1900 or 2007
of the California Corporations Code.

     Section 7.6: Quorum. The presence in person or by proxy of the holders of a
majority of the shares entitled to vote at any meeting of the shareholders shall
constitute a quorum for the transaction of business. Shares shall not be counted
to make up a quorum for a meeting if voting of such shares at the meeting has
been enjoined or for any reason they cannot be lawfully voted at the meeting.
Shareholders present at a duly called or held meeting at which a quorum is
present may continue to transact business until adjournment notwithstanding the
withdrawal of enough shareholders to leave less than a quorum, if any action
taken (other than adjournment) is approved by at least a majority of the shares
required to constitute a quorum. Except as provided herein, the affirmative vote
of a majority of the shares represented and voting at a duly held meeting at
which a quorum is present (which shares voting affirmatively also constitute at
least a majority of the required quorum) shall be the act of the shareholders,
unless the vote of a greater number or voting by classes is required.

     Section 7.7: Adjourned Meetings. Any shareholders meeting, whether or not a
quorum is present, may be adjourned from time to time by the vote of a majority
of the shares, the holders of which are either present in person or represented
by proxy thereat, but, except as provided in Section 7.6 hereof, in the absence
of a quorum, no other business may be transacted at such meeting. When a meeting
is adjourned for more than 45 days or if after adjournment a new record date is
fixed for the adjourned meeting, a notice of the adjourned meeting shall be
given to each shareholder of record entitled to vote at a meeting. Except as
aforesaid, it shall not be necessary to give any notice of the time and place of
the adjourned meeting or of the business to be transacted thereat other than by
announcement at the meeting at which such adjournment is taken. At any adjourned
meeting the shareholders may transact any business which might have been
transacted at the original meeting.


                                      -17-

<PAGE>   18

     Section 7.8: Voting Rights. Only persons in whose names shares entitled to
vote stand on the stock records of the Company at:

          (a)  the close of business on the business day immediately preceding
the day on which notice is given; or

          (b)  if notice is waived, at the close of business on the business day
immediately preceding the day on which the meeting is held; or

          (c)  if some other day be fixed for the determination of shareholders
of record pursuant to Section 2.8(k) hereof, then on such other day, shall be 
entitled to vote at such meeting.

     The record date for determining shareholders entitled to give consent to
corporate action in writing without a meeting, when no prior action by the Board
of Directors has been taken, shall be the day on which the first written consent
is given. In the absence of any contrary provision in the Articles of
Incorporation or in any applicable statute relating to the election of directors
or to other particular matters, each such person shall be entitled to one vote
for each share.

     Section 7.9: Action by Written Consents. Any action which may be taken at
any annual or special meeting of shareholders may be taken without a meeting and
without prior notice, if a consent in writing, setting forth the action so
taken, shall be signed by holders of outstanding shares having not less than the
minimum number of votes that would be necessary to authorize or take such action
at a meeting at which all shares entitled to vote thereon were present and
voted. Unless the consents of all shareholders entitled to vote have been
solicited in writing, the Company shall provide notice of any shareholder
approval pursuant to Section 310, 317, 1201 or 2007 of the California
Corporations Code obtained without a meeting by less than unanimous written
consent to those shareholders entitled to vote but who have not yet consented in
writing at least 10 days before the consummation of the action authorized by
such approval. In addition, the Company shall provide, to those shareholders
entitled to vote who have not consented in writing, prompt notice of the taking
of any other corporate action approved by the shareholders without a meeting by
less than unanimous written consent. All notices given hereunder shall conform
to the requirements of Section 7.4 hereto and applicable law. When written
consents are given with respect to any shares, they shall be given by and
accepted from the persons in whose names such shares stand on the books of the
Company at the time such respective consents are given, or their proxies. Any
shareholder giving a written consent (including any shareholder's proxy holder,
or a transferee of the shares or a personal representative of the shareholder,
or their respective proxy holders) may revoke the consent by a writing. This
writing must be received by the Company prior to the time that written consents
of the number of shares required to authorize the proposed action have been
filed with the Secretary of the Company. Such revocation is effective upon its
receipt by the Secretary of the Company. Notwithstanding anything herein to the
contrary, and subject to Section 305(b) of the California Corporations Code,
directors may not be elected by written consent except by unanimous written
consent of all shares entitled to vote for the election of directors.


                                      -18-

<PAGE>   19

     Section 7.10: Election of Directors. Unless cumulative voting has been
eliminated pursuant to the terms of the Company's Articles of Incorporation
pursuant to Section 301.5 of the California Corporations Code, every shareholder
entitled to vote at any election of directors of `he Company may cumulate such
shareholder's votes and give one candidate a number of votes equal to the number
of directors to be elected multiplied by the number of votes to which the
shareholder's shares are normally entitled, or distribute the shareholder's
votes on the same principle among as many candidates as such shareholder thinks
fit. No shareholder, however, may cumulate such shareholder's votes for one or
more candidates unless such candidate's or candidates' names have been placed in
nomination prior to the voting and the shareholder has given notice at the
meeting, prior to voting, of such shareholder's intention to cumulate such
shareholder's votes. If any one shareholder has given such notice, all
shareholders may cumulate their votes for candidates in nomination. The
candidates receiving the highest number of affirmative votes of the shares
entitled to be voted for them up to the number of directors to be elected by
such shares shall be declared elected. Votes against the director and votes
withheld shall have no legal effect. Election of directors need not be by ballot
except upon demand made by a shareholder at the meeting and before the voting
begins.

     Section 7.11: Proxies. Every person entitled to vote or execute consents
shall have the right to do so either in person or by one or more agents
authorized by a written proxy executed by such person or such person's duly
authorized agent and filed with the Secretary of the Company. No proxy shall be
valid (a) after revocation thereof, unless the proxy is specifically made
irrevocable and otherwise conforms to this Section and applicable law, or (b)
after the expiration of eleven months from the date thereof, unless the person
executing it specifies therein the length of time for which such proxy is to
continue in force. Revocation may be effected by a writing delivered to the
Secretary of the Company stating that the proxy is revoked or by a subsequent
proxy executed by the person executing the prior proxy and presented to the
meeting, or as to any meeting by attendance at the meeting and voting in person
by the person executing the proxy. A proxy is not revoked by the death or
incapacity of the maker unless, before the vote is counted a written notice of
such death or incapacity is received by the Secretary of the Company. In
addition, a proxy may be revoked, notwithstanding a provision making it
irrevocable, by a transferee of shares without knowledge of the existence of the
provision unless the existence of the proxy and its irrevocability appears on
the certificate representing such shares.

     Section 7.12: Inspectors of Election. Before any meeting of shareholders,
the Board of Directors may appoint any persons other than nominees for office as
inspectors of election. This appointment shall be valid at the meeting and at
any subsequent meeting that is a continuation of the meeting at which the
persons were originally appointed to be inspectors. if no inspectors of election
are so appointed, the Chairman of the meeting may, and on the request of any
shareholder or a shareholder's proxy shall, appoint inspectors of election at
the meeting. The number of inspectors shall be either one or three. If
inspectors are appointed at a meeting on the request of one or more shareholders
or proxies, the holders of a majority of shares or their proxies present at the
meeting shall determine whether one or three inspectors are to be appointed. if
any person appointed as inspector fails to appear or fails or refuses to act,
the Chairman of the meeting may, and upon the request of any shareholder or a
shareholder's proxy shall, appoint a person to fill that vacancy. These
inspectors shall:


                                      -19-

<PAGE>   20

          (a)  determine the number of shares outstanding and the voting power
of each, the shares represented at the meeting, the existence of a quorum, and
the authenticity, validity, and effect of proxies;

          (b)  receive votes, ballots, or consents;

          (c)  hear and determine all challenges and questions in any way
arising in connection with the right to vote;

          (d)  count and tabulate all votes or consents;

          (e)  determine when the polls shall close;

          (f)  determine the result; and

          (g)  do any other acts that may be proper to conduct the election or
vote with fairness to all shareholders.

     Section 7.13: Annual Reports. Provided that the Company has 100 or fewer
shareholders, the making of annual reports to the shareholders is dispensed with
and the requirement that such annual reports be made to shareholders is
expressly waived, except as may be directed from time to time by the Board of
Directors or the President.


                                  ARTICLE VIII

                          SHARES AND SHARE CERTIFICATES

     Section 8.l: Shares Held By the Company. Shares in other companies standing
in the name of the Company may be voted or represented and all rights incident
thereto may be exercised on behalf of the Company by any officer of the Company
authorized to do so by resolution of the Board of Directors.

     Section 8.2: Certificates for Shares. There shall be issued to every holder
of shares in the Company a certificate or certificates signed in the name of the
Company by the Chairman of the Board, if any, or the President or a Vice
President and by the Chief Financial Officer or an Assistant Chief Financial
Officer or the Secretary or any Assistant Secretary, certifying the 17 342368.1
number of shares and the class or series of shares owned by the shareholder. Any
or all of the signatures on the certificate may be facsimile. In case any
officer, transfer agent or registrar who has signed or whose facsimile signature
has been placed upon a certificate shall have ceased to be such officer,
transfer agent or registrar before such certificate is issued, it may be issued
by the Company with the same effect as if such person were an officer, transfer
agent or registrar at the date of issue.

     Section 8.3: Lost Certificates. Where the owner of any certificate for
shares of the Company claims that the certificate has been lost, stolen or
destroyed, a new certificate shall be issued in place of the original
certificate if the owner (a) so requests before the Company has notice that the
original certificate has been acquired by a bona fide purchaser and (b)
satisfies any 


                                      -20-

<PAGE>   21

reasonable requirements imposed by the Company, including without limitation the
filing with the Company of an indemnity bond or agreement in such form and in
such amount as shall be required by the President or a Vice President of the
Company. The Board of Directors may adopt such other provisions and restrictions
with reference to lost certificates, not inconsistent with applicable law, as it
shall in its discretion deem appropriate.


                                   ARTICLE IX

           CONSTRUCTION OF BYLAWS WITH REFERENCE TO PROVISIONS OF LAW

     Section 9.1: Bylaw Provisions Construed as Additional and Supplemental to
Provisions of Law. All restrictions, limitations, requirements and other
provisions of these Bylaws shall be construed, insofar as possible, as
supplemental and additional to all provisions of law applicable to the subject
matter thereof and shall be fully complied with in addition to the said
provisions of law unless such compliance shall be illegal.

     Section 9.2: Bylaw Provisions Contrary to or Inconsistent with Provisions
of Law. Any article, section, subsection, subdivision, sentence, clause or
phrase of these Bylaws which, upon being construed in the manner provided in
Section 9.1 hereof, shall be contrary to or inconsistent with any applicable
provision of law, shall not apply so long as said provisions of law shall remain
in effect, but such result shall not affect the validity or applicability of any
other portion of these Bylaws, it being hereby declared that these Bylaws, and
each article, section, subsection, subdivision, sentence, clause or phrase
thereof, would have been adopted irrespective of the fact that any one or more
articles, sections, subsections, subdivisions, sentences, clauses or phrases is
or are illegal.


                                    ARTICLE X

             CERTIFICATION, ADOPTION, AMENDMENT OR REPEAL OF BYLAWS

     Section 10.1: By Shareholders. Bylaws may be adopted, amended or repealed
by the vote or written consent of holders of a majority of the outstanding
shares entitled to vote. Bylaws specifying or changing a fixed number of
directors or the maximum or minimum number or changing from a fixed to a
variable board or vice versa may be adopted only by the shareholders.

     Section 10.2: By the Board of Directors. Subject to the right of
shareholders to adopt, amend or repeal Bylaws, and other than a Bylaw or
amendment thereof specifying or changing a fixed number of directors or the
maximum or minimum number or changing from a fixed to a variable board or vice
versa, these Bylaws may be adopted, amended or repealed by the Board of
Directors. A Bylaw adopted by the shareholders may restrict or eliminate the
power of the Board of Directors to adopt, amend or repeal Bylaws.

     Section 10.3: Certification and Inspection of Bylaws. The Company shall
keep at its principal executive office the original or a copy of these Bylaws as
amended or otherwise altered to date, which shall be open to inspection by the
shareholders at all reasonable times during office hours.


                                      -21-

<PAGE>   1
                                                                   EXHIBIT 10.03



                              ESS TECHNOLOGY, INC.

                           1995 EQUITY INCENTIVE PLAN

                          (AS AMENDED ON JULY 18, 1998)

        1. PURPOSE. The purpose of this Plan is to provide incentives to
attract, retain and motivate eligible persons whose present and potential
contributions are important to the success of the Company, its Parent,
Subsidiaries and Affiliates, by offering them an opportunity to participate in
the Company's future performance through awards of Options, Restricted Stock and
Stock Bonuses. Capitalized terms not defined in the text are defined in Section
23.

        2. SHARES SUBJECT TO THE PLAN.

               2.1 Number of Shares Available. Subject to Sections 2.2 and 18,
the total number of Shares reserved and available for grant and issuance
pursuant to this Plan will be 3,000,000 Shares. Subject to Sections 2.2 and 18,
Shares that: (a) are subject to issuance upon exercise of an Option but cease to
be subject to such Option for any reason other than exercise of such Option; (b)
are subject to an Award granted hereunder but are forfeited or are repurchased
by the Company at the original issue price; or (c) are subject to an Award that
otherwise terminates without Shares being issued; will again be available for
grant and issuance in connection with future Awards under this Plan. At all
times the Company shall reserve and keep available a sufficient number of Shares
as shall be required to satisfy the requirements of all outstanding Options
granted under this Plan and all other outstanding but unvested Awards granted
under this Plan.

               2.2 Adjustment of Shares. In the event that the number of
outstanding Shares is changed by a stock dividend, recapitalization, stock
split, reverse stock split, subdivision, combination, reclassification or
similar change in the capital structure of the Company without consideration,
then (a) the number of Shares reserved for issuance under this Plan, (b) the
Exercise Prices of and number of Shares subject to outstanding Options, and (c)
the number of Shares subject to other outstanding Awards will be proportionately
adjusted, subject to any required action by the Board or the stockholders of the
Company and compliance with applicable securities laws; provided, however, that
fractions of a Share will not be issued but will either be replaced by a cash
payment equal to the Fair Market Value of such fraction of a Share or will be
rounded up to the nearest whole Share, as determined by the Committee.

        3. ELIGIBILITY. ISOs (as defined in Section 5 below) may be granted only
to employees (including officers and directors who are also employees) of the
Company or of a Parent or Subsidiary of the Company. All other Awards may be
granted to employees, officers, directors, consultants, independent contractors
and advisors of the Company or any Parent, Subsidiary or Affiliate of the
Company; provided such consultants, contractors and advisors render bona fide
services not in connection with the offer and sale of securities in a
capital-raising transaction. No person will be eligible to receive more than
375,000 Shares in any calendar year under this Plan pursuant to the grant of
Awards hereunder, other than new employees of the Company or of a Parent,
Subsidiary or Affiliate of the Company (including

<PAGE>   2

new employees who are also officers and directors of the Company or any Parent,
Subsidiary or Affiliate of the Company) who are eligible to receive up to a
maximum of 750,000 Shares in the calendar year in which they commence their
employment. A person may be granted more than one Award under this Plan.

        4.     ADMINISTRATION.

               4.1 Committee Authority. This Plan will be administered by the
Committee or by the Board acting as the Committee. Subject to the general
purposes, terms and conditions of this Plan, and to the direction of the Board,
the Committee will have full power to implement and carry out this Plan. Without
limitation, the Committee will have the authority to:

                      (a) construe and interpret this Plan, any Award Agreement
and any other agreement or document executed pursuant to this Plan;

                      (b) prescribe, amend and rescind rules and regulations
relating to this Plan;

                      (c) select persons to receive Awards;

                      (d) determine the form and terms of Awards;

                      (e) determine the number of Shares or other consideration
subject to Awards;

                      (f) determine whether Awards will be granted singly, in
combination with, in tandem with, in replacement of, or as alternatives to,
other Awards under this Plan or any other incentive or compensation plan of the
Company or any Parent, Subsidiary or Affiliate of the Company;

                      (g) grant waivers of Plan or Award conditions;

                      (h) determine the vesting, exercisability and payment of
Awards;

                      (i) correct any defect, supply any omission or reconcile
any inconsistency in this Plan, any Award or any Award Agreement;

                      (j) determine whether an Award has been earned; and

                      (k) make all other determinations necessary or advisable
for the administration of this Plan.

               4.2 Committee Discretion. Any determination made by the Committee
with respect to any Award will be made in its sole discretion at the time of
grant of the Award or, unless in contravention of any express term of this Plan
or Award, at any later time, and such determination will be final and binding on
the Company and on all persons having an interest in any Award under this Plan.
The Committee may delegate to one or more officers of the



                                      -2-
<PAGE>   3

Company the authority to grant an Award under this Plan to Participants who are
not Insiders of the Company.

               4.3 Exchange Act Requirements. If two or more members of the
Board are Outside Directors, the Committee will be comprised of at least two (2)
members of the Board, all of whom are Outside Directors and Disinterested
Persons. During all times that the Company is subject to Section 16 of the
Exchange Act, the Company will take appropriate steps to comply with the
disinterested administration requirements of Section 16(b) of the Exchange Act,
which will consist of the appointment by the Board of a Committee consisting of
not less than two (2) members of the Board, each of whom is a Disinterested
Person.

        5. OPTIONS. The Committee may grant Options to eligible persons and will
determine whether such Options will be Incentive Stock Options within the
meaning of the Code ("ISOS") or Nonqualified Stock Options ("NQSOS"), the number
of Shares subject to the Option, the Exercise Price of the Option, the period
during which the Option may be exercised, and all other terms and conditions of
the Option, subject to the following:

               5.1 Form of Option Grant. Each Option granted under this Plan
will be evidenced by an Award Agreement which will expressly identify the Option
as an ISO or an NQSO ("STOCK OPTION AGREEMENT"), and will be in such form and
contain such provisions (which need not be the same for each Participant) as the
Committee may from time to time approve, and which will comply with and be
subject to the terms and conditions of this Plan.

               5.2 Date of Grant. The date of grant of an Option shall, for all
purposes, be the date on which the Committee makes the determination granting
such Option or such other date as is determined by the Committee; provided
however that that grant date shall be the later of the date on which the
Committee makes the determination granting such Option or the date of
commencement of the Optionee's employment relationship with the Company. Notice
of the determination shall be given to each Participant within a reasonable time
after the date of such grant.

               5.3 Exercise Period. Options will be exercisable within the times
or upon the events determined by the Committee as set forth in the Stock Option
Agreement governing such Option; provided, however, that no Option will be
exercisable after the expiration of ten (10) years from the date the Option is
granted; and provided further that no ISO granted to a person who directly or by
attribution owns more than ten percent (10%) of the total combined voting power
of all classes of stock of the Company or of any Parent or Subsidiary of the
Company ("TEN PERCENT STOCKHOLDER") will be exercisable after the expiration of
five (5) years from the date the ISO is granted. The Committee also may provide
for the exercise of Options to become exercisable at one time or from time to
time, periodically or otherwise, in such number of Shares or percentage of
Shares as the Committee determines.

               5.4 Exercise Price. The Exercise Price of an Option will be
determined by the Committee when the Option is granted and may be not less than
85% of the Fair Market Value of the Shares on the date of grant; provided that:
(i) the Exercise Price of an ISO will be not less than 100% of the Fair Market
Value of the Shares on the date of grant; and (ii) the Exercise Price



                                      -3-
<PAGE>   4

of any ISO granted to a Ten Percent Stockholder will not be less than 110% of
the Fair Market Value of the Shares on the date of grant. Payment for the Shares
purchased may be made in accordance with Section 8 of this Plan.

               5.5 Method of Exercise. Options may be exercised only by delivery
to the Company of a written stock option exercise agreement (the "EXERCISE
AGREEMENT") in a form approved by the Committee (which need not be the same for
each Participant), stating the number of Shares being purchased, the
restrictions imposed on the Shares purchased under such Exercise Agreement, if
any, and such representations and agreements regarding Participant's investment
intent and access to information and other matters, if any, as may be required
or desirable by the Company to comply with applicable securities laws, together
with payment in full of the Exercise Price for the number of Shares being
purchased.

               5.6 Termination. Notwithstanding the exercise periods set forth
in the Stock Option Agreement, exercise of an Option will always be subject to
the following:

                      (a) If the Participant is Terminated for any reason except
death or Disability, then the Participant may exercise such Participant's
Options only to the extent that such Options would have been exercisable upon
the Termination Date no later than three (3) months after the Termination Date
(or such shorter or longer time period not exceeding five (5) years as may be
determined by the Committee, with any exercise beyond three (3) months after the
Termination Date deemed to be an NQSO), but in any event, no later than the
expiration date of the Options.

                      (b) If the Participant is Terminated because of
Participant's death or Disability (or the Participant dies within three (3)
months after a Termination other than because of Participant's death or
disability), then Participant's Options may be exercised only to the extent that
such Options would have been exercisable by Participant on the Termination Date
and must be exercised by Participant (or Participant's legal representative or
authorized assignee) no later than twelve (12) months after the Termination Date
(or such shorter or longer time period not exceeding five (5) years as may be
determined by the Committee, with any such exercise beyond (a) three (3) months
after the Termination Date when the Termination is for any reason other than the
Participant's death or Disability, or (b) twelve (12) months after the
Termination Date when the Termination is for Participant's death or Disability,
deemed to be an NQSO), but in any event no later than the expiration date of the
Options.

               5.7 Limitations on Exercise. The Committee may specify a
reasonable minimum number of Shares that may be purchased on any exercise of an
Option, provided that such minimum number will not prevent Participant from
exercising the Option for the full number of Shares for which it is then
exercisable.

               5.8 Limitations on ISOs. The aggregate Fair Market Value
(determined as of the date of grant) of Shares with respect to which ISOs are
exercisable for the first time by a Participant during any calendar year (under
this Plan or under any other incentive stock option plan of the Company or any
Affiliate, Parent or Subsidiary of the Company) will not exceed $100,000. If the
Fair Market Value of Shares on the date of grant with respect to which ISOs are



                                      -4-
<PAGE>   5

exercisable for the first time by a Participant during any calendar year exceeds
$100,000, then the Options for the first $100,000 worth of Shares to become
exercisable in such calendar year will be ISOs and the Options for the amount in
excess of $100,000 that become exercisable in that calendar year will be NQSOs.
In the event that the Code or the regulations promulgated thereunder are amended
after the Effective Date of this Plan to provide for a different limit on the
Fair Market Value of Shares permitted to be subject to ISOs, such different
limit will be automatically incorporated herein and will apply to any Options
granted after the effective date of such amendment.

               5.9 Modification, Extension or Renewal. The Committee may modify,
extend or renew outstanding Options and authorize the grant of new Options in
substitution therefor, provided that any such action may not, without the
written consent of a Participant, impair any of such Participant's rights under
any Option previously granted. Any outstanding ISO that is modified, extended,
renewed or otherwise altered will be treated in accordance with Section 424(h)
of the Code. The Committee may reduce the Exercise Price of outstanding Options
without the consent of Participants affected by a written notice to them;
provided, however, that the Exercise Price may not be reduced below the minimum
Exercise Price that would be permitted under Section 5.4 of this Plan for
Options granted on the date the action is taken to reduce the Exercise Price.

               5.10 No Disqualification. Notwithstanding any other provision in
this Plan, no term of this Plan relating to ISOs will be interpreted, amended or
altered, nor will any discretion or authority granted under this Plan be
exercised, so as to disqualify this Plan under Section 422 of the Code or,
without the consent of the Participant affected, to disqualify any ISO under
Section 422 of the Code.

        6. RESTRICTED STOCK. A Restricted Stock Award is an offer by the Company
to sell to an eligible person Shares that are subject to restrictions. The
Committee will determine to whom an offer will be made, the number of Shares the
person may purchase, the price to be paid (the "PURCHASE PRICE"), the
restrictions to which the Shares will be subject, and all other terms and
conditions of the Restricted Stock Award, subject to the following:

               6.1 Form of Restricted Stock Award. All purchases under a
Restricted Stock Award made pursuant to this Plan will be evidenced by an Award
Agreement ("RESTRICTED STOCK PURCHASE AGREEMENT") that will be in such form
(which need not be the same for each Participant) as the Committee will from
time to time approve, and will comply with and be subject to the terms and
conditions of this Plan. The offer of Restricted Stock will be accepted by the
Participant's execution and delivery of the Restricted Stock Purchase Agreement
and full payment for the Shares to the Company within thirty (30) days from the
date the Restricted Stock Purchase Agreement is delivered to the person. If such
person does not execute and deliver the Restricted Stock Purchase Agreement
along with full payment for the Shares to the Company within thirty (30) days,
then the offer will terminate, unless otherwise determined by the Committee.



                                      -5-
<PAGE>   6

               6.2 Purchase Price. The Purchase Price of Shares sold pursuant to
a Restricted Stock Award will be determined by the Committee and will be at
least 85% of the Fair Market Value of the Shares on the date the Restricted
Stock Award is granted, except in the case of a sale to a Ten Percent
Stockholder, in which case the Purchase Price will be 100% of the Fair Market
Value. Payment of the Purchase Price may be made in accordance with Section 8 of
this Plan.

               6.3 Restrictions. Restricted Stock Awards will be subject to such
restrictions (if any) as the Committee may impose. The Committee may provide for
the lapse of such restrictions in installments and may accelerate or waive such
restrictions, in whole or part, based on length of service, performance or such
other factors or criteria as the Committee may determine.

        7. STOCK BONUSES.

               7.1 Awards of Stock Bonuses. A Stock Bonus is an award of Shares
(which may consist of Restricted Stock) for services rendered to the Company or
any Parent, Subsidiary or Affiliate of the Company. A Stock Bonus may be awarded
for past services already rendered to the Company, or any Parent, Subsidiary or
Affiliate of the Company pursuant to an Award Agreement (the "STOCK BONUS
AGREEMENT") that will be in such form (which need not be the same for each
Participant) as the Committee will from time to time approve, and will comply
with and be subject to the terms and conditions of this Plan. A Stock Bonus may
be awarded upon satisfaction of such performance goals as are set out in advance
in the Participant's individual Award Agreement (the "PERFORMANCE STOCK BONUS
AGREEMENT") that will be in such form (which need not be the same for each
Participant) as the Committee will from time to time approve, and will comply
with and be subject to the terms and conditions of this Plan. Stock Bonuses may
vary from Participant to Participant and between groups of Participants, and may
be based upon the achievement of the Company, Parent, Subsidiary or Affiliate
and/or individual performance factors or upon such other criteria as the
Committee may determine.

               7.2 Terms of Stock Bonuses. The Committee will determine the
number of Shares to be awarded to the Participant and whether such Shares will
be Restricted Stock. If the Stock Bonus is being earned upon the satisfaction of
performance goals pursuant to a Performance Stock Bonus Agreement, then the
Committee will determine: (a) the nature, length and starting date of any period
during which performance is to be measured (the "PERFORMANCE PERIOD") for each
Stock Bonus; (b) the performance goals and criteria to be used to measure the
performance, if any; (c) the number of Shares that may be awarded to the
Participant; and (d) the extent to which such Stock Bonuses have been earned.
Performance Periods may overlap and Participants may participate simultaneously
with respect to Stock Bonuses that are subject to different Performance Periods
and different performance goals and other criteria. The number of Shares may be
fixed or may vary in accordance with such performance goals and criteria as may
be determined by the Committee. The Committee may adjust the performance goals
applicable to the Stock Bonuses to take into account changes in law and
accounting or tax rules and to make such adjustments as the Committee deems
necessary or appropriate to reflect the impact of extraordinary or unusual
items, events or circumstances to avoid windfalls or hardships.



                                      -6-
<PAGE>   7

               7.3 Form of Payment. The earned portion of a Stock Bonus may be
paid currently or on a deferred basis with such interest or dividend equivalent,
if any, as the Committee may determine. Payment may be made in the form of cash,
whole Shares, including Restricted Stock, or a combination thereof, either in a
lump sum payment or in installments, all as the Committee will determine.

               7.4 Termination During Performance Period. If a Participant is
Terminated during a Performance Period for any reason, then such Participant
will be entitled to payment (whether in Shares, cash or otherwise) with respect
to the Stock Bonus only to the extent earned as of the date of Termination in
accordance with the Performance Stock Bonus Agreement, unless the Committee will
determine otherwise.

        8.     PAYMENT FOR SHARE PURCHASES.

               8.1 Payment. Payment for Shares purchased pursuant to this Plan
may be made in cash (by check) or, where expressly approved for the Participant
by the Committee and where permitted by law:

                      (a) by cancellation of indebtedness of the Company to the
Participant;

                      (b) by surrender of shares that either: (1) have been
owned by Participant for more than six (6) months and have been paid for within
the meaning of SEC Rule 144 (and, if such shares were purchased from the Company
by use of a promissory note, such note has been fully paid with respect to such
shares); or (2) were obtained by Participant in the public market;

                      (c) by tender of a full recourse promissory note having
such terms as may be approved by the Committee and bearing interest at a rate
sufficient to avoid imputation of income under Sections 483 and 1274 of the
Code; provided, however, that Participants who are not employees or directors of
the Company will not he entitled to purchase Shares with a promissory note
unless the note is adequately secured by collateral other than the Shares;

                      (d) by waiver of compensation due or accrued to the
Participant for services rendered;

                      (e) with respect only to purchases upon exercise of an
Option, and provided that a public market for the Company's stock exists:

                             (1) through a "same day sale" commitment from the
Participant and a broker-dealer that is a member of the National Association of
Securities Dealers (an "NASD DEALER") whereby the Participant irrevocably elects
to exercise the Option and to sell a portion of the Shares so purchased to pay
for the Exercise Price, and whereby the NASD Dealer irrevocably commits upon
receipt of such Shares to forward the Exercise Price directly to the Company; or



                                      -7-
<PAGE>   8

                             (2) through a "margin" commitment from the
Participant and a NASD Dealer whereby the Participant irrevocably elects to
exercise the Option and to pledge the Shares so purchased to the NASD Dealer in
a margin account as security for a loan from the NASD Dealer in the amount of
the Exercise Price, and whereby the NASD Dealer irrevocably commits upon receipt
of such Shares to forward the Exercise Price directly to the Company; or

                      (f) by any combination of the foregoing.

               8.2 Loan Guarantees. The Committee may help the Participant pay
for Shares purchased under this Plan by authorizing a guarantee by the Company
of a third-party loan to the Participant.

        9. WITHHOLDING TAXES.

               9.1 Withholding Generally. Whenever Shares are to be issued in
satisfaction of Awards granted under this Plan, the Company may require the
Participant to remit to the Company an amount sufficient to satisfy federal,
state and local withholding tax requirements prior to the delivery of any
certificate or certificates for such Shares. Whenever, under this Plan, payments
in satisfaction of Awards are to be made in cash, such payment will be net of an
amount sufficient to satisfy federal, state, and local withholding tax
requirements.

               9.2 Stock Withholding. When, under applicable tax laws, a
Participant incurs tax liability in connection with the exercise or vesting of
any Award that is subject to tax withholding and the Participant is obligated to
pay the Company the amount required to be withheld, the Committee may allow the
Participant to satisfy the minimum withholding tax obligation by electing to
have the Company withhold from the Shares to be issued that number of Shares
having a Fair Market Value equal to the minimum amount required to be withheld,
determined on the date that the amount of tax to be withheld is to be determined
(the "TAX DATE"). All elections by a Participant to have Shares withheld for
this purpose will be made in writing in a form acceptable to the Committee and
will be subject to the following restrictions:

                      (a) the election must be made on or prior to the
applicable Tax Date;

                      (b) once made, then except as provided below, the election
will be irrevocable as to the particular Shares as to which the election is
made;

                      (c) all elections will be subject to the consent or
disapproval of the Committee;

                      (d) if the Participant is an Insider and if the Company is
subject to Section 16(b) of the Exchange Act: (1) the election may not be made
within six (6) months of the date of grant of the Award, except as otherwise
permitted by SEC Rule 16b-3(e) under the Exchange Act, and (2) either (A) the
election to use stock withholding must be irrevocably made at least six (6)
months prior to the Tax Date (although such election may be revoked at any time
at least six (6) months prior to the Tax Date) or (B) the exercise of the Option
or election to use



                                      -8-
<PAGE>   9

stock withholding must be made in the ten (10) day period beginning on the third
day following the release of the Company's quarterly or annual summary statement
of sales or earnings; and

                      (e) in the event that the Tax Date is deferred until six
(6) months after the delivery of Shares under Section 83(b) of the Code, the
Participant will receive the full number of Shares with respect to which the
exercise occurs, but such Participant will be unconditionally obligated to
tender back to the Company the proper number of Shares on the Tax Date.

        10. PRIVILEGES OF STOCK OWNERSHIP.

               10.1 Voting and Dividends. No Participant will have any of the
rights of a stockholder with respect to any Shares until the Shares are issued
to the Participant. After Shares are issued to the Participant, the Participant
will be a stockholder and have all the rights of a stockholder with respect to
such Shares, including the right to vote and receive all dividends or other
distributions made or paid with respect to such Shares; provided, that if such
Shares are Restricted Stock, then any new, additional or different securities
the Participant may become entitled to receive with respect to such Shares by
virtue of a stock dividend, stock split or any other change in the corporate or
capital structure of the Company will be subject to the same restrictions as the
Restricted Stock; provided, further, that the Participant will have no right to
retain such stock dividends or stock distributions with respect to Shares that
are repurchased at the Participant's original Purchase Price pursuant to Section
12.

               10.2 Financial Statements. The Company will provide financial
statements to each Participant prior to such Participant's purchase of Shares
under this Plan, and to each Participant annually during the period such
Participant has Awards outstanding; provided, however, the Company will not be
required to provide such financial statements to Participants whose services in
connection with the Company assure them access to equivalent information.

        11. TRANSFERABILITY. Awards granted under this Plan, and any interest
therein, wilt not be transferable or assignable by Participant, and may not be
made subject to execution, attachment or similar process, otherwise than by will
or by the laws of descent and distribution or as consistent with the specific
Plan and Award Agreement provisions relating thereto During the lifetime of the
Participant an Award will be exercisable only by the Participant, and any
elections with respect to an Award, may be made only by the Participant.

        12. RESTRICTIONS ON SHARES. At the discretion of the Committee, the
Company may reserve to itself and/or its assignee(s) in the Award Agreement (a)
a right of first refusal to purchase all Shares that a Participant (or a
subsequent transferee) may propose to transfer to a third party, and/or (b) a
right to repurchase a portion of or all Shares held by a Participant following
such Participant's Termination at any time within ninety (90) days after the
later of Participant's Termination Date and the date Participant purchases
Shares under this Plan, for cash and/or cancellation of purchase money
indebtedness, at: (A) with respect to Shares that are "Vested" (as defined in
the Award Agreement), the higher of: (1) Participant's original Purchase Price,
or (2) the Fair Market Value of such Shares on Participant's Termination Date,
provided, that such right of repurchase (i) must be exercised as to all such
"Vested" Shares unless



                                      -9-
<PAGE>   10

a Participant consents to the Company's repurchase of only a portion of such
"Vested" Shares and (ii) terminates when the Company's securities become
publicly traded; or (B) with respect to Shares that are not "Vested" (as defined
in the Award Agreement), at the Participant's original Purchase Price, provided,
that the right to repurchase at the original Purchase Price lapses at the rate
of at least 20% per year over five (5) years from the date the Shares were
purchased (or from the date of grant of options in the case of Shares obtained
pursuant to a Stock Option Agreement and Stock Option Exercise Agreement), and
if the right to repurchase is assignable, the assignee must pay the Company,
upon assignment of the right to repurchase, cash equal to the excess of the Fair
Market Value of the Shares over the original Purchase Price.

        13. CERTIFICATES. All certificates for Shares or other securities
delivered under this Plan will be subject to such stock transfer orders, legends
and other restrictions as the Committee may deem necessary or advisable,
including restrictions under any applicable federal, state or foreign securities
law, or any rules, regulations and other requirements of the SEC or any stock
exchange or automated quotation system upon which the Shares may be listed or
quoted.

        14. ESCROW; PLEDGE OF SHARES. To enforce any restrictions on a
Participant's Shares, the Committee may require the Participant to deposit all
certificates representing Shares, together with stock powers or other
instruments of transfer approved by the Committee, appropriately endorsed in
blank, with the Company or an agent designated by the Company to hold in escrow
until such restrictions have lapsed or terminated, and the Committee may cause a
legend or legends referencing such restrictions to be placed on the
certificates. Any Participant who is permitted to execute a promissory note as
partial or full consideration for the purchase of Shares under this Plan will be
required to pledge and deposit with the Company all or part of the Shares so
purchased as collateral to secure the payment of Participant's obligation to the
Company under the promissory note; provided, however, that the Committee may
require or accept other or additional forms of collateral to secure the payment
of such obligation and, in any event, the Company will have full recourse
against the Participant under the promissory note notwithstanding any pledge of
the Participant's Shares or other collateral. In connection with any pledge of
the Shares, Participant will be required to execute and deliver a written pledge
agreement in such form as the Committee will from time to time approve. The
Shares purchased with the promissory note may be released from the pledge on a
pro rata basis as the promissory note is paid.

        15. EXCHANGE AND BUYOUT OF AWARDS. The Committee may, at any time or
from time to time, authorize the Company, with the consent of the respective
Participants, to issue new Awards in exchange for the surrender and cancellation
of any or all outstanding Awards. The Committee may at any time buy from a
Participant an Award previously granted with payment in cash, Shares (including
Restricted Stock) or other consideration, based on such terms and conditions as
the Committee and the Participant may agree.

        16. SECURITIES LAW AND OTHER REGULATORY COMPLIANCE. An Award will not be
effective unless such Award is in compliance with all applicable federal and
state securities laws, rules and regulations of any governmental body, and the
requirements of any stock exchange or automated quotation system upon which the
Shares may then be listed or



                                      -10-
<PAGE>   11

quoted, as they are in effect on the date of grant of the Award and also on the
date of exercise or other issuance. Notwithstanding any other provision in this
Plan, the Company will have no obligation to issue or deliver certificates for
Shares under this Plan prior to: (a) obtaining any approvals from governmental
agencies that the Company determines are necessary or advisable; and/or (b)
completion of any registration or other qualification of such Shares under any
state or federal law or ruling of any governmental body that the Company
determines to be necessary or advisable. The Company will be under no obligation
to register the Shares with the SEC or to effect compliance with the
registration, qualification or listing requirements of any state securities
laws, stock exchange or automated quotation system, and the Company will have no
liability for any inability or failure to do so.

        17. NO OBLIGATION TO EMPLOY. Nothing in this Plan or any Award granted
under this Plan will confer or be deemed to confer on any Participant any right
to continue in the employ of, or to continue any other relationship with, the
Company or any Parent, Subsidiary or Affiliate of the Company or limit in any
way the right of the Company or any Parent, Subsidiary or Affiliate of the
Company to terminate Participant's employment or other relationship at any time,
with or without cause.

        18. CORPORATE TRANSACTIONS.

               18.1 Assumption or Replacement of Awards by Successor. In the
event of (a) a dissolution or liquidation of the Company, (b) a merger or
consolidation in which the Company is not the surviving corporation (other than
a merger or consolidation with a wholly-owned subsidiary, a reincorporation of
the Company in a different jurisdiction, or other transaction in which there is
no substantial change in the stockholders of the Company or their relative stock
holdings and the Awards granted under this Plan are assumed, converted or
replaced by the successor corporation, which assumption will be binding on all
Participants), (c) a merger in which the Company is the surviving corporation
but after which the stockholders of the Company (other than any stockholder
which merges (or which owns or controls another corporation which merges) with
the Company in such merger) cease to own their shares or other equity interests
in the Company, (d) the sale of substantially all of the assets of the Company,
or (e) any other transaction which qualifies as a "corporate transaction" under
Section 424(a) of the Code wherein the stockholders of the Company give up all
of their equity interest in the Company (except for the acquisition, sale or
transfer of all or substantially all of the outstanding shares of the Company
from or by the stockholders of the Company), any or all outstanding Awards may
be assumed, converted or replaced by the successor corporation (if any), which
assumption, conversion or replacement will be binding on all Participants. In
the alternative, the successor corporation may substitute equivalent Awards or
provide substantially similar consideration to Participants as was provided to
stockholders (after taking into account the existing provisions of the Awards).
The successor corporation may also issue, in place of outstanding Shares of the
Company held by the Participant, substantially similar shares or other property
subject to repurchase restrictions no less favorable to the Participant. In the
event such successor corporation (if any) refuses to assume or substitute
Options, as provided above, pursuant to a transaction described in this
Subsection 18.1, such Options will expire on such transaction at such time and
on such conditions as the Board will determine.



                                      -11-
<PAGE>   12

               18.2 Other Treatment of Awards. Subject to any greater rights
granted to Participants under the foregoing provisions of this Section 18, in
the event of the occurrence of any transaction described in Section 18.1, any
outstanding Awards will be treated as provided in the applicable agreement or
plan of merger, consolidation, dissolution, liquidation, sale of assets or other
"corporate transaction."

               18.3 Assumption of Awards by the Company. The Company, from time
to time, also may substitute or assume outstanding awards granted by another
company, whether in connection with an acquisition of such other company or
otherwise, by either: (a) granting an Award under this Plan in substitution of
such other company's award; or (b) assuming such award as if it had been granted
under this Plan if the terms of such assumed award could be applied to an Award
granted under this Plan. Such substitution or assumption will be permissible if
the holder of the substituted or assumed award would have been eligible to be
granted an Award under this Plan if the other company had applied the rules of
this Plan to such grant. In the event the Company assumes an award granted by
another company, the terms and conditions of such award will remain unchanged
(except that the exercise price and the number and nature of Shares issuable
upon exercise of any such option will be adjusted appropriately pursuant to
Section 424(a) of the Code). In the event the Company elects to grant a new
Option rather than assuming an existing option, such new Option may be granted
with a similarly adjusted Exercise Price.

        19. ADOPTION AND STOCKHOLDER APPROVAL. This Plan will become effective
on the date on which the registration statement filed by the Company with the
SEC under the Securities Act registering the initial public offering of the
Company's Common Stock is declared effective by the SEC (the "EFFECTIVE DATE");
provided, however, however that if the Effective Date does not occur on or
before December 31, 1995, this Plan will terminate as of December 31, 1995
having never become effective. This Plan shall be approved by the stockholders
of the Company (excluding Shares issued pursuant to this Plan), consistent with
applicable laws, within twelve (12) months before or after the date this Plan is
adopted by the Board. Upon the Effective Date, the Board may grant Awards
pursuant to this Plan; provided, however, that: (a) no Option may be exercised
prior to initial stockholder approval of this Plan; (b) no Option granted
pursuant to an increase in the number of Shares subject to this Plan approved by
the Board will be exercised prior to the time such increase has been approved by
the stockholders of the Company; and (c) in the event that stockholder approval
of such increase is not obtained within the time period provided herein, all
Awards granted hereunder will be canceled, any Shares issued pursuant to any
Award will be canceled, and any purchase of Shares hereunder will be rescinded.
So long as the Company is subject to Section 16(b) of the Exchange Act, the
Company will comply with the requirements of Rule 16b-3 (or its successor), as
amended, with respect to stockholder approval.

        20. TERM OF PLAN. Unless earlier terminated as provided herein, this
Plan will terminate ten (10) years from the date this Plan is adopted by the
Board or, if earlier, the date of stockholder approval.



                                      -12-
<PAGE>   13

        21. AMENDMENT OR TERMINATION OF PLAN. The Board may at any time
terminate or amend this Plan in any respect, including without limitation
amendment of any form of Award Agreement or instrument to be executed pursuant
to this Plan; provided, however, that the Board will not, without the approval
of the stockholders of the Company, amend this Plan in any manner that requires
such stockholder approval pursuant to the Code or the regulations promulgated
thereunder as such provisions apply to ISO plans or (if the Company is subject
to the Exchange Act or Section 16(b) of the Exchange Act) pursuant to the
Exchange Act or Rule 16b-3 (or its successor), as amended, thereunder,
respectively.

        22. NONEXCLUSIVITY OF THE PLAN. Neither the adoption of this Plan by the
Board, the submission of this Plan to the stockholders of the Company for
approval, nor any provision of this Plan will be construed as creating any
limitations on the power of the Board to adopt such additional compensation
arrangements as it may deem desirable, including, without limitation, the
granting of stock options and bonuses otherwise than under this Plan, and such
arrangements may be either generally applicable or applicable only in specific
cases.

        23. DEFINITIONS. As used in this Plan, the following terms will have the
following meanings:

               "AFFILIATE" means any corporation that directly, or indirectly
through one or more intermediaries, controls or is controlled by, or is under
common control with, another corporation, where "control" (including the terms
"controlled by" and "under common control with") means the possession, direct or
indirect, of the power to cause the direction of the management and policies of
the corporation, whether through the ownership of voting securities, by contract
or otherwise.

               "AWARD" means any award under this Plan, including any Option,
Restricted Stock or Stock Bonus.

               "AWARD AGREEMENT" means, with respect to each Award, the signed
written agreement between the Company and the Participant setting forth the
terms and conditions of the Award.

               "BOARD" means the Board of Directors of the Company.

               "CODE" means the Internal Revenue Code of 1986, as amended.

               "COMMITTEE" means the committee appointed by the Board to
administer this Plan, or if no such committee is appointed, the Board.

               "COMPANY" means ESS Technology, Inc., a corporation organized
under the laws of the State of California, or any successor corporation.

               "DISABILITY" means a disability, whether temporary or permanent,
partial or total, within the meaning of Section 22(e)(3) of the Code, as
determined by the Committee.



                                      -13-
<PAGE>   14

               "DISINTERESTED PERSON" means a director who has not, during the
period that person is a member of the Committee and for one year prior to
commencing service as a member of the Committee, been granted or awarded equity
securities pursuant to this Plan or any other plan of the Company or any Parent,
Subsidiary or Affiliate of the Company, except in accordance with the
requirements set forth in Rule 16b-3(c)(2)(i) (and any successor regulation
thereto) as promulgated by the SEC under Section 16(b) of the Exchange Act, as
such rule is amended from time to time and as interpreted by the SEC.

               "EXCHANGE ACT" means the Securities Exchange Act of 1934 as
amended.

               "EXERCISE PRICE" means the price at which a holder of an Option
may purchase the Shares issuable upon exercise of the Option.

               "FAIR MARKET VALUE" means, as of any date, the value of a share
of the Company's Common Stock determined as follows:

                      (a) if such Common Stock is then quoted on the Nasdaq
National Market, its closing price on the Nasdaq National Market on the last
trading day prior to the date of determination as reported in The Wall Street
Journal;

                      (b) if such Common Stock is publicly traded and is then
listed on a national securities exchange, its closing price on the last trading
day prior to the date of determination on the principal national securities
exchange on which the Common Stock is listed or admitted to trading as reported
in The Wall Street Journal;

                      (c) if such Common Stock is publicly traded but is not
quoted on the Nasdaq National Market nor listed or admitted to trading on a
national securities exchange, the average of the closing bid and asked prices on
the last trading day prior to the date of determination as reported in The Wall
Street Journal; or

                      (d) if none of the foregoing is applicable, by the
Committee in good faith.

               "INSIDER" means an officer or director of the Company or any
other person whose transactions in the Company's Common Stock are subject to
Section 16 of the Exchange Act.

               "OUTSIDE DIRECTOR" means any director who is not: (a) a current
employee of the Company or any Parent, Subsidiary or Affiliate of the Company;
(b) a former employee of the Company or any Parent, Subsidiary or Affiliate of
the Company who is receiving compensation for prior services (other than
benefits under a tax-qualified pension plan); (c) a current or former officer of
the Company or any Parent, Subsidiary or Affiliate of the Company; or (d)
currently receiving compensation for personal services in any capacity, other
than as a director, from the Company or any Parent, Subsidiary or Affiliate of
the Company; provided, however, that at such time as the term "Outside
Director," as used in Section 162(m) of the Code is defined in regulations
promulgated under Section 162(m) of the Code, "Outside Director" will have the



                                      -14-
<PAGE>   15

meaning set forth in such regulations, as amended from time to time and as
interpreted by the Internal Revenue Service.

               "OPTION" means an award of an option to purchase Shares pursuant
to Section 5.

               "PARENT" means any corporation (other than the Company) in an
unbroken chain of corporations ending with the Company, if at the time of the
granting of an Award under this Plan, each of such corporations other than the
Company owns stock possessing 50% or more of the total combined voting power of
all classes of stock in one of the other corporations in such chain.

               "PARTICIPANT" means a person who receives an Award under this
Plan.

               "PLAN" means this ESS Technology, Inc. 1995 Equity Incentive
Plan, as amended from time to time.

               "RESTRICTED STOCK AWARD" means an award of Shares pursuant to
Section 6.

               "SEC" means the Securities and Exchange Commission.

               "SECURITIES ACT" means the Securities Act of 1933, as amended.

               "SHARES" means shares of the Company's Common Stock reserved for
issuance under this Plan, as adjusted pursuant to Sections 2 and 18, and any
successor security.

               "STOCK BONUS" means an award of Shares, or cash in lieu of
Shares, pursuant to Section 7.

               "SUBSIDIARY" means any corporation (other than the Company) in an
unbroken chain of corporations beginning with the Company if, at the time of
granting of the Award, each of the corporations other than the last corporation
in the unbroken chain owns stock possessing 50% or more of the total combined
voting power of all classes of stock in one of the other corporations in such
chain.

               "TERMINATION" or "TERMINATED" means, for purposes of this Plan
with respect to a Participant, that the Participant has for any reason ceased to
provide services as an employee, director, consultant, independent contractor or
advisor to the Company or a Parent, Subsidiary or Affiliate of the Company,
except in the case of sick leave, military leave, or any other leave of absence
approved by the Committee, provided that such leave is for a period of not more
than ninety (90) days, or reinstatement upon the expiration of such leave is
guaranteed by contract or statute. The Committee will have sole discretion to
determine whether a Participant has ceased to provide services and the effective
date on which the Participant ceased to provide services (the "TERMINATION
DATE").



                                      -15-


<PAGE>   1
                                                                   EXHIBIT 10.05



                              ESS TECHNOLOGY, INC.

                        1995 EMPLOYEE STOCK PURCHASE PLAN

                          (AS AMENDED ON JULY 18, 1998)

        1. ESTABLISHMENT OF PLAN. ESS Technology, Inc., a California corporation
(the "COMPANY"), proposes to grant options for purchase of the Company's Common
Stock to eligible employees of the Company and its Subsidiaries (as hereinafter
defined) pursuant to this Employee Stock Purchase Plan (this "PLAN"). For
purposes of this Plan, "PARENT CORPORATION" and "SUBSIDIARY" (collectively,
"SUBSIDIARIES") shall have the same meanings as "parent corporation" and
"subsidiary corporation" in Sections 424(e) and 424(f), respectively, of the
Internal Revenue Code of 1986, as amended (the "CODE"). The Company intends this
Plan to qualify as an "employee stock purchase plan" under Section 423 of the
Code (including any amendments to or replacements of such Section), and this
Plan shall be so construed. Any term not expressly defined in this Plan but
defined for purposes of Section 423 of the Code shall have the same definition
herein. A total of 425,000 shares of the Company's Common Stock is reserved for
issuance under this Plan. Such number shall be subject to adjustments effected
in accordance with Section 14 of this Plan.

        2. PURPOSE. The purpose of this Plan is to provide employees of the
Company and Subsidiaries designated by the Board of Directors of the Company
(the "BOARD") as eligible to participate in this Plan with a convenient means of
acquiring an equity interest in the Company through payroll deductions, to
enhance such employees' sense of participation in the affairs of the Company and
Subsidiaries, and to provide an incentive for continued employment.

        3. ADMINISTRATION. This Plan shall be administered by a committee
appointed by the Board (the "COMMITTEE") consisting of at least two (2) members
of the Board, each of whom is a Disinterested Person as defined in Rule 16b-3(d)
of the Securities Exchange Act of 1934 (the "EXCHANGE ACT"). As used in this
Plan, references to the "Committee" shall mean either such committee or the
Board if no committee has been established. After registration of the Company
under the Exchange Act, Board members who are not Disinterested Persons may not
vote on any matters affecting the administration of this Plan, but any such
member may be counted for determining the existence of a quorum at any meeting
of the Board. Subject to the provisions of this Plan and the limitations of
Section 423 of the Code or any successor provision in the Code, all questions of
interpretation or application of this Plan shall be determined by the Board and
its decisions shall be final and binding upon all participants. Members of the
Board shall receive no compensation for their services in connection with the
administration of this Plan, other than standard fees as established from time
to time by the Board for services rendered by Board members serving on Board
committees. All expenses incurred in connection with the administration of this
Plan shall be paid by the Company.

        4. ELIGIBILITY. Any employee of the Company or the Subsidiaries is
eligible to participate in an Offering Period (as hereinafter defined) under
this Plan except the following:



<PAGE>   2

               (a) employees who are not employed by the Company or Subsidiaries
one (1) month before the beginning of such Offering Period;

               (b) employees who are customarily employed for less than twenty
(20) hours per week;

               (c) employees who are customarily employed for less than five (5)
months in a calendar year;

               (d) employees who, together with any other person whose stock
would be attributed to such employee pursuant to Section 424(d) of the Code, own
stock or hold options to purchase stock possessing five percent (5%) or more of
the total combined voting power or value of all classes of stock of the Company
or any of its Subsidiaries or who, as a result of being granted an option under
this Plan with respect to such Offering Period, would own stock or hold options
to purchase stock possessing five percent (5%) or more of the total combined
voting power or value of all classes of stock of the Company or any of its
Subsidiaries.

        5. OFFERING DATES. The offering periods of this Plan (each, an "Offering
Period") shall be of six (6) months duration commencing on May 1 and November 1
of each year and ending on July 31 and January 31 of each year; provided,
however, that notwithstanding the foregoing, the first such Offering Period
shall commence on the first business day after the date on which the
registration statement filed by the Company with the Securities and Exchange
Commission ("SEC") under the Securities Act of 1933, as amended (the "Securities
Act") registering the initial public offering of the Company's Common Stock is
declared effective by the SEC (the "First Offering Date") and shall end on
January 31. Each Offering Period shall consist of one (1) six-month purchase
period (individually, a Purchase Period") during which payroll deductions of the
participants are accumulated under this Plan. The first business day of each
Offering Period is referred to as the "OFFERING DATE." The last business day of
each Purchase Period is referred to as the "PURCHASE DATE." The Board shall have
the power to change the duration of Offering Periods or Purchase Periods with
respect to future offerings without stockholder approval if such change is
announced at least fifteen (15) days prior to the scheduled beginning of the
first Offering Period or Purchase Period to be affected.

        6. PARTICIPATION IN THIS PLAN. Eligible employees may become
participants in an Offering Period under this Plan on the first Offering Date
after satisfying the eligibility requirements by delivering a subscription
agreement to the Company's treasury department (the "TREASURY DEPARTMENT") not
later than the 15th day of the month before such Offering Date unless a later
time for filing the subscription agreement authorizing payroll deductions is set
by the Board for all eligible employees with respect to a given Offering Period.
An eligible employee who does not deliver a subscription agreement to the
Treasury Department by such date after becoming eligible to participate in such
Offering Period shall not participate in that Offering Period or any subsequent
Offering Period unless such employee enrolls in this Plan by filing a
subscription agreement with the Treasury Department not later than the 15th day
of the month preceding a subsequent Offering Date. Once an employee becomes a
participant in an Offering Period, such employee will automatically participate
in the Offering Period



                                      -2-
<PAGE>   3

commencing immediately following the last day of the prior Offering Period
unless the employee withdraws or is deemed to withdraw from this Plan or
terminates further participation in the Offering Period as set forth in Section
11 below. Such participant is not required to file any additional subscription
agreement in order to continue participation in this Plan.

        7. GRANT OF OPTION ON ENROLLMENT. Enrollment by an eligible employee in
this Plan with respect to an Offering Period will constitute the grant (as of
the Offering Date) by the Company to such employee of an option to purchase on
the Purchase Date up to that number of shares of Common Stock of the Company
determined by dividing (a) the amount accumulated in such employee's payroll
deduction account during such Purchase Period by (b) the lower of (i)
eighty-five percent (85%) of the fair market value of a share of the Company's
Common Stock on the Offering Date (but in no event less than the par value of a
share of the Company's Common Stock), or (ii) eighty-five percent (85%) of the
fair market value of a share of the Company's Common Stock on the Purchase Date
(but in no event less than the par value of a share of the Company's Common
Stock); provided, however, that the number of shares of the Company's Common
Stock subject to any option granted pursuant to this Plan shall not exceed the
lesser of (a) the maximum number of shares set by the Board pursuant to Section
10(c) below with respect to the applicable Offering Period, or (b) the maximum
number of shares which may be purchased pursuant to Section 10(b) below with
respect to the applicable Offering Period. The fair market value of a share of
the Company's Common Stock shall be determined as provided in Section 8 hereof.

        8. PURCHASE PRICE. The purchase price per share at which a share of
Common Stock will be sold in any Offering Period shall be eighty-five percent
(85%) of the lesser of:

               (a) The fair market value on the Offering Date; or

               (b) The fair market value on the Purchase Date;

               provided, however, that in no event may the purchase price per
share of the Company's Common Stock be below the par value per share of the
Company's Common Stock.

               For purposes of this Plan, the term "fair market value" on a
given date shall mean the fair market value of the Company's Common Stock as
determined by the Board in its sole discretion, exercised in good faith;
provided, however, that where there is a public market for the Common Stock, the
fair market value per share shall be the average of the last reported bid and
asked prices of the Common Stock on the last trading day prior to the date of
determination (or the average closing price over the number of consecutive
trading days preceding the date of determination as the Board shall deem
appropriate), or, in the event the Common Stock is listed on a stock exchange or
on the Nasdaq National Market, the fair market value per share shall be the
closing price on such exchange or quotation system on the last trading date
prior to the date of determination (or the average closing price over the number
of consecutive trading days preceding the date of determination as the Board
shall deem appropriate); and provided further, that notwithstanding the
foregoing, the fair market value of the Company's Common Stock on the First
Offering Date (which is the first business day of the first Offering Period
under this Plan) shall be deemed to be the price per share at which shares of
the Company's Common Stock



                                      -3-
<PAGE>   4

are initially offered for sale to the public in the Company's initial public
offering of its Common Stock pursuant to a registration statement filed with the
SEC under the Securities Act

        9. PAYMENT OF PURCHASE PRICE; CHANGES IN PAYROLL DEDUCTIONS; ISSUANCE OF
SHARES.

               (a) The purchase price of the shares is accumulated by regular
payroll deductions made during each Offering Period. The deductions are made as
a percentage of the participant's compensation in one percent (1%) increments
not less than two percent (2%), nor greater than ten percent (10%) or such lower
limit set by the Committee. Compensation shall mean all W-2 compensation,
including, but not limited to base salary, wages, commissions, overtime, shift
premiums and bonuses, plus draws against commissions; provided, however, that
for purposes of determining a participant's compensation, any election by such
participant to reduce his or her regular cash remuneration under Sections 125 or
401(k) of the Code shall be treated as if the participant did not make such
election. Payroll deductions shall commence on the first payday following the
Offering Date and shall continue to the end of the Offering Period unless sooner
altered or terminated as provided in this Plan.

               (b) A participant may lower (but not increase) the rate of
payroll deductions during an Offering Period by filing with the Treasury
Department a new authorization for payroll deductions, in which case the new
rate shall become effective for the next payroll period commencing more than
fifteen (15) days after the Treasury Department's receipt of the authorization
and shall continue for the remainder of the Offering Period unless changed as
described below. Such change in the rate of payroll deductions may be made at
any time during an Offering Period, but not more than one (1) change may be made
effective during any Offering Period. A participant may increase or decrease the
rate of payroll deductions for any subsequent Offering Period by filing with the
Treasury Department a new authorization for payroll deductions not later than
the 15th day of the month before the beginning of such Offering Period.

               (c) All payroll deductions made for a participant are credited to
his or her account under this Plan and are deposited with the general funds of
the Company. No interest accrues on the payroll deductions. All payroll
deductions received or held by the Company may be used by the Company for any
corporate purpose, and the Company shall not be obligated to segregate such
payroll deductions.

               (d) On each Purchase Date, so long as this Plan remains in effect
and provided that the participant has not submitted a signed and completed
withdrawal form before that date which notifies the Company that the participant
wishes to withdraw from that Offering Period under this Plan and have all
payroll deductions accumulated in the account maintained on behalf of the
participant as of that date returned to the participant, the Company shall apply
the funds then in the participant's account to the purchase of whole shares of
Common Stock reserved under the option granted to such participant with respect
to the Offering Period to the extent that such option is exercisable on the
Purchase Date. The purchase price per share shall be as specified in Section 8
of this Plan. Any cash remaining in a participant's account after such purchase
of shares shall be refunded to such participant in cash, without interest. In
the event



                                      -4-
<PAGE>   5

that this Plan has been oversubscribed, all funds not used to purchase shares on
the Purchase Date shall be returned to the participant, without interest. No
Common Stock shall be purchased on a Purchase Date on behalf of any employee
whose participation in this Plan has terminated prior to such Purchase Date.

               (e) As promptly as practicable after the Purchase Date, the
Company shall arrange the delivery to each participant of a certificate
representing the shares purchased upon exercise of his option.

               (f) During a participant's lifetime, such participant's option to
purchase shares hereunder is exercisable only by him or her. The participant
will have no interest or voting right in shares covered by his or her option
until such option has been exercised. Shares to be delivered to a participant
under this Plan will be registered in the name of the participant or in the name
of the participant and his or her spouse.

        10. LIMITATIONS ON SHARES TO BE PURCHASED.

               (a) No employee shall be entitled to purchase stock under this
Plan at a rate which, when aggregated with his or her rights to purchase stock
under all other employee stock purchase plans of the Company or any Subsidiary,
exceeds $25,000 in fair market value, determined as of the Offering Date (or
such other limit as may be imposed by the Code) for each calendar year in which
the employee participates in this Plan.

               (b) No more than two hundred percent (200%) of the number of
shares determined by using eighty-five percent (85%) of the fair market value of
a share of the Company's Common Stock on the Offering Date as the denominator
may be purchased by a participant on any single Purchase Date.

               (c) No employee shall be entitled to purchase more than the
Maximum Share Amount (as defined below) on any single Purchase Date. Not less
than thirty (30) days prior to the commencement of any Offering Period, the
Board may, in its sole discretion, set a maximum number of shares which may be
purchased by any employee at any single Purchase Date, which until changed by
the Board shall be 250 Shares of Common Stock (hereinafter the "MAXIMUM SHARE
AMOUNT"). In no event shall the Maximum Share Amount exceed the amounts
permitted under Section 10(b) above. If a new Maximum Share Amount is set, then
all participants must be notified of such Maximum Share Amount not less than
fifteen (15) days prior to the commencement of the next Offering Period. Once
the Maximum Share Amount is set, it shall continue to apply with respect to all
succeeding Purchase Dates and Offering Periods unless revised by the Board as
set forth above.

               (d) If the number of shares to be purchased on a Purchase Date by
all employees participating in this Plan exceeds the number of shares then
available for issuance under this Plan, then the Company will make a pro rata
allocation of the remaining shares in as uniform a manner as shall be reasonably
practicable and as the Board shall determine to be equitable. In such event, the
Company shall give written notice of such reduction of the number of shares to
be purchased under a participant's option to each participant affected thereby.



                                      -5-
<PAGE>   6

               (e) Any payroll deductions accumulated in a participant's account
which are not used to purchase stock due to the limitations in this Section 10
shall be returned to the participant as soon as practicable after the end of the
applicable Purchase Period, without interest.

        11. WITHDRAWAL.

               (a) Each participant may withdraw from an Offering Period under
this Plan by signing and delivering to the Treasury Department a written notice
to that effect on a form provided for such purpose. Such withdrawal may be
elected at any time at least fifteen (15) days prior to the end of an Offering
Period.

               (b) Upon withdrawal from this Plan, the accumulated payroll
deductions shall be returned to the withdrawn participant, without interest, and
his or her interest in this Plan shall terminate. In the event a participant
voluntarily elects to withdraw from this Plan, he or she may not resume his or
her participation in this Plan during the same Offering Period, but he or she
may participate in any Offering Period under this Plan which commences on a date
subsequent to such withdrawal by filing a new authorization for payroll
deductions in the same manner as set forth above for initial participation in
this Plan.

        12. TERMINATION OF EMPLOYMENT. Termination of a participant's employment
for any reason, including retirement, death or the failure of a participant to
remain an eligible employee, immediately terminates his or her participation in
this Plan. In such event, the payroll deductions credited to the participant's
account will be returned to him or her or, in the case of his or her death, to
his or her legal representative, without interest. For purposes of this Section
12, an employee will not be deemed to have terminated employment or failed to
remain in the continuous employ of the Company in the case of sick leave,
military leave, or any other leave of absence approved by the Board; provided
that such leave is for a period of not more than ninety (90) days or
reemployment upon the expiration of such leave is guaranteed by contract or
statute.

        13. RETURN OF PAYROLL DEDUCTIONS. In the event a participant's interest
in this Plan is terminated by withdrawal, termination of employment or
otherwise, or in the event this Plan is terminated by the Board, the Company
shall promptly deliver to the participant all payroll deductions credited to
such participant's account. No interest shall accrue on the payroll deductions
of a participant in this Plan.

        14. CAPITAL CHANGES. Subject to any required action by the stockholders
of the Company, the number of shares of Common Stock covered by each option
under this Plan which has not yet been exercised and the number of shares of
Common Stock which have been authorized for issuance under this Plan but have
not yet been placed under option (collectively, the "RESERVES"), as well as the
price per share of Common Stock covered by each option under this Plan which has
not yet been exercised, shall be proportionately adjusted for any increase or
decrease in the number of issued and outstanding shares of Common Stock of the
Company resulting from a stock split or the payment of a stock dividend (but
only on the Common Stock) or any other increase or decrease in the number of
issued and outstanding shares of Common Stock effected without receipt of any
consideration by the Company; provided, however, that



                                      -6-
<PAGE>   7

conversion of any convertible securities of the Company shall not be deemed to
have been "effected without receipt of consideration"; and provided further,
that the price per share of Common Stock shall not be reduced below its par
value per share. Such adjustment shall be made by the Board, whose determination
shall be final, binding and conclusive. Except as expressly provided herein, no
issue by the Company of shares of stock of any class, or securities convertible
into shares of stock of any class, shall affect, and no adjustment by reason
thereof shall be made with respect to, the number or price of shares of Common
Stock subject to an option.

        In the event of the proposed dissolution or liquidation of the Company,
the Offering Period will terminate immediately prior to the consummation of such
proposed action, unless otherwise provided by the Board. The Board may, in the
exercise of its sole discretion in such instances, declare that the options
under this Plan shall terminate as of a date fixed by the Board and give each
participant the right to exercise his or her option as to all of the optioned
stock, including shares which would not otherwise be exercisable. In the event
of a proposed sale of all or substantially all of the assets of the Company, or
the merger or consolidation of the Company with or into another corporation,
each option under this Plan shall be assumed or an equivalent option shall be
substituted by such successor corporation or a parent or subsidiary of such
successor corporation, unless the Board determines, in the exercise of its sole
discretion and in lieu of such assumption or substitution, that the participant
shall have the right to exercise the option as to all of the optioned stock. If
the Board makes an option exercisable in lieu of assumption or substitution in
the event of a merger, consolidation or sale of assets, the Board shall notify
the participant that the option shall be fully exercisable for a period of
twenty (20) days from the date of such notice, and the option will terminate
upon the expiration of such period.

        The Board may, if it so determines in the exercise of its sole
discretion, also make provision for adjusting the Reserves, as well as the price
per share of Common Stock covered by each outstanding option, in the event that
the Company effects one or more reorganizations, recapitalizations, rights
offerings or other increases or reductions of shares of its outstanding Common
Stock, or in the event of the Company being consolidated with or merged into any
other corporation; provided, that the price per share of Common Stock shall not
be reduced below its par value per share.

        15. NONASSIGNABILITY. Neither payroll deductions credited to a
participant's account nor any rights with regard to the exercise of an option or
to receive shares under this Plan may be assigned, transferred, pledged or
otherwise disposed of in any way (other than by will, the laws of descent and
distribution or as provided in Section 22 hereof) by the participant. Any such
attempt at assignment, transfer, pledge or other disposition shall be void and
without effect.

        16. REPORTS. Individual accounts will be maintained for each participant
in this Plan. Each participant shall receive promptly after the end of each
Purchase Period a report of his or her account setting forth the total payroll
deductions accumulated, the number of shares purchased, the per share price
thereof and the remaining cash balance. if any, carried forward to the next
Purchase Period or Offering Period, as the case may be.



                                      -7-
<PAGE>   8

        17. NOTICE OF DISPOSITION. Each participant shall notify the Company if
the participant disposes of any of the shares purchased in any Offering Period
pursuant to this Plan if such disposition occurs within two (2) years from the
Offering Date or within one (1) year from the Purchase Date on which such shares
were purchased (the "NOTICE Period"). Unless such participant is disposing of
any of such shares during the Notice Period, such participant shall keep the
certificates representing such shares in his or her name (and not in the name of
a nominee) during the Notice Period. The Company may, at any time during the
Notice Period, place a legend or legends on any certificate representing shares
acquired pursuant to this Plan requesting the Company's transfer agent to notify
the Company of any transfer of the shares. The obligation of the participant to
provide such notice shall continue notwithstanding the placement of any such
legend on the certificates.

        18. NO RIGHTS TO CONTINUED EMPLOYMENT. Neither this Plan nor the grant
of any option hereunder shall confer any right on any employee to remain in the
employ of the Company or any Subsidiary, or restrict the right of the Company or
any Subsidiary to terminate such employee's employment.

        19. EQUAL RIGHTS AND PRIVILEGES. All eligible employees shall have equal
rights and privileges with respect to this Plan so that this Plan qualifies as
an "employee stock purchase plan" within the meaning of Section 423 or any
successor provision of the Code and the related regulations. Any provision of
this Plan which is inconsistent with Section 423 or any successor provision of
the Code shall, without further act or amendment by the Company or the Board, be
reformed to comply with the requirements of Section 423. This Section 19 shall
take precedence over all other provisions in this Plan.

        20. NOTICES. All notices or other communications by a participant to the
Company under or in connection with this Plan shall be deemed to have been duly
given when received in the form specified by the Company at the location, or by
the person, designated by the Company for the receipt thereof.

        21. TERM; STOCKHOLDER APPROVAL. After this Plan is adopted by the Board,
this Plan will become effective on the date that is the First Offering Date (as
defined above); provided, however, that if the First Offering Date does not
occur on or before December 31, 1995, this Plan will terminate as of December
31, 1995 having never become effective. This Plan shall be approved by the
stockholders of the Company, in any manner permitted by applicable corporate
law, within twelve (12) months before or after the date this Plan is adopted by
the Board. No purchase of shares pursuant to this Plan shall occur prior to such
stockholder approval. Thereafter, no later than twelve (12) months after the
Company becomes subject to Section 16(b) of the Exchange Act, the Company will
comply with the requirements of Rule 16b-3 with respect to stockholder approval.
This Plan shall continue until the earlier to occur of (a) termination of this
Plan by the Board (which termination may be effected by the Board at any time),
(b) issuance of all of the shares of Common Stock reserved for issuance under
this Plan, or (c) ten (10) years from the adoption of this Plan by the Board.

        22. DESIGNATION OF BENEFICIARY.



                                      -8-
<PAGE>   9

               (a) A participant may file a written designation of a beneficiary
who is to receive any shares and cash, if any, from the participant's account
under this Plan in the event of such participant's death subsequent to the end
of an Purchase Period but prior to delivery to him of such shares and cash. In
addition, a participant may file a written designation of a beneficiary who is
to receive any cash from the participant's account under this Plan in the event
of such participant's death prior to a Purchase Date.

               (b) Such designation of beneficiary may be changed by the
participant at any time by written notice. In the event of the death of a
participant and in the absence of a beneficiary validly designated under this
Plan who is living at the time of such participant's death, the Company shall
deliver such shares or cash to the executor or administrator of the estate of
the participant, or if no such executor or administrator has been appointed (to
the knowledge of the Company), the Company, in its discretion, may deliver such
shares or cash to the spouse or to any one or more dependents or relatives of
the participant, or if no spouse, dependent or relative is known to the Company,
then to such other person as the Company may designate.

        23. CONDITIONS UPON ISSUANCE OF SHARES; LIMITATION ON SALE OF SHARES.
Shares shall not be issued with respect to an option unless the exercise of such
option and the issuance and delivery of such shares pursuant thereto shall
comply with all applicable provisions of law, domestic or foreign, including,
without limitation, the Securities Act of 1933, as amended, the Exchange Act,
the rules and regulations promulgated thereunder, and the requirements of any
stock exchange or automated quotation system upon which the shares may then be
listed, and shall be further subject to the approval of counsel for the Company
with respect to such compliance.

        24. APPLICABLE LAW. The Plan shall be governed by the substantive laws
(excluding the conflict of laws rules) of the State of California.

        25. AMENDMENT OR TERMINATION OF THIS PLAN. The Board may at any time
amend, terminate or the extend the term of this Plan, except that any such
termination cannot affect options previously granted under this Plan, nor may
any amendment make any change in an option previously granted which would
adversely affect the right of any participant, nor may any amendment be made
without approval of the stockholders of the Company obtained in accordance with
Section 21 hereof within twelve (12) months of the adoption of such amendment
(or earlier if required by Section 21) if such amendment would:

               (a) increase the number of shares that may be issued under this
Plan;

               (b) change the designation of the employees (or class of
employees) eligible for participation in this Plan; or

               (c) constitute an amendment for which stockholder approval is
required in order to comply with Rule 16b-3 (or any successor rule) of the
Exchange Act.



                                      -9-
<PAGE>   10

ESS TECHNOLOGY, INC. 1995 EMPLOYEE STOCK PURCHASE PLAN ENROLLMENT FORM


    Check One:                      Complete:

      [ ] New Enrollment            Social Security No._________________________

      [ ] Change                    Social Security No._________________________

1.  Name of
    Participant     ____________________________________________________________

2.  Stock purchased under the Plan should be held in account with the Plan
    Broker in my name or in my name together with the names(s) indicated below:

    Name _____________________      Social Security No._________________________

    Name _____________________      Social Security No._________________________

    If spouse (circle one):  Joint Tenants/Community Property

    PLEASE NOTIFY THE PLAN BROKER DIRECTLY TO TRANSFER OR SELL YOUR STOCK.

3.  Payroll Deduction Level  (from 2% to 10% in whole percentages):
    (deductions will be made from your total compensation which equals base
    salary, bonuses, overtime pay and commissions)

4.  I confirm my spouse's interest (if married) in the community property
    herein, and I hereby designate the following person(s) as my
    beneficiary(ies) to receive all payments and/or stock attributable to my
    interest under the Plan:

<TABLE>
<S>                                          <C>               <C>
                  NAME                           *To be                    ADDRESS
                                               divided as
                                                follows:

    _____________________________________    _______________   _________________________________
    Last           First       M.I.                            Number        Street


    _____________________________________                      _________________________________
    Social Security No.   Relationship                         City          State       Zip


    _____________________________________    _______________   _________________________________
    Last           First       M.I.                            Number        Street


    _____________________________________                      _________________________________
    Social Security No.   Relationship                         City          State       Zip
</TABLE>

    *If more than one beneficiary: (1) insert "in equal shares," or (2) insert
    percentage to be paid to each beneficiary.

5.  The information provided on this Enrollment Form will remain in effect
    unless and until I complete and submit to the Human Resources Department a
    new enrollment form.

                                             ESS TECHNOLOGY, INC. OFFICE USE:

Signature: ________________________          Date received by the Human
                                             Resource Dept.: ___________________

Name: _____________________________          Date entered into
                                             system: ___________________________
Date: _____________________________

PLEASE RETURN THIS FORM TO THE HUMAN RESOURCES DEPARTMENT.

<PAGE>   11

                              ESS TECHNOLOGY, INC.

                        1995 EMPLOYEE STOCK PURCHASE PLAN

                             SUBSCRIPTION AGREEMENT


1.    I elect to participate in the ESS Technology, Inc. (the "Company") 1995
      Employee Stock Purchase Plan (the "Plan") and to subscribe to purchase
      shares of the Company's Common Stock (the "Shares") in accordance with
      this Subscription Agreement and the Plan.

2.    I authorize payroll deductions from each of my paychecks in that
      percentage of my gross compensation as shown on my Enrollment Form, in
      accordance with the Plan.

3.    I understand that such payroll deductions shall be accumulated for the
      purchase of Shares under the Plan at the applicable purchase price
      determined in accordance with the Plan. I further understand that except
      as otherwise set forth in the Plan, Shares will be purchased for me
      automatically at the end of each Purchase Period unless I withdraw from
      the Plan or otherwise become ineligible to participate in the Plan.

4.    I understand that this Subscription Agreement will automatically re-enroll
      me in all subsequent Offering Periods unless I withdraw from the Plan or I
      become ineligible to participate in the Plan.

5.    I acknowledge that I have a copy of and am familiar with the Plan. I
      understand that a Prospectus describing the securities issuable under the
      Plan will be distributed to me upon the filing by the Company of a
      Registration Statement with the Securities and Exchange Commission with
      respect to the Plan.

6.    I understand that Shares purchased for me under the Plan will be held in a
      personal account with the Plan Broker unless I request otherwise.

7.    I hereby agree to be bound by the terms of the Plan. The effectiveness of
      this Subscription Agreement is dependent upon my eligibility to
      participate in the Plan.

8.    I have read and understood this Subscription Agreement.

                                        Signature:______________________________

                                        Name:___________________________________

                                        Date:___________________________________


<PAGE>   12

PLEASE RETURN THIS FORM TO THE HUMAN RESOURCES DEPARTMENT.



<PAGE>   1
                                                                   EXHIBIT 10.30



                              ESS TECHNOLOGY, INC.

                           1997 EQUITY INCENTIVE PLAN

                          (AS AMENDED ON JULY 18, 1998)

        1.     PURPOSES OF THE PLAN. The purposes of this Equity Incentive Plan
are to attract and retain the best available personnel for positions of
substantial responsibility, to provide additional incentive to the Employees and
Consultants of the Company and to promote the success of the Company's business.

               Options granted hereunder may be either Incentive Stock Options
(as defined under Section 422 of the Code) or Nonstatutory Stock Options, at the
discretion of the Board and as reflected in the terms of the written option
agreement.

        2.     DEFINITIONS. As used herein, the following definitions shall
apply:

               (a) "Administrator" shall mean the Board or any of its Committees
appointed pursuant to Section 4 of the Plan.

               (b) "Affiliate" shall mean an entity other than a Subsidiary (as
defined below) in which the Company owns an equity interest.

               (c) "Applicable Laws" shall have the meaning set forth in Section
4(a) below.

               (d) "Board" shall mean the Board of Directors of the Company.

               (e) "Code" shall mean the Internal Revenue Code of 1986, as
amended.

               (f) "Committee" shall mean the Committee appointed by the Board
of Directors in accordance with Section 4(a) of the Plan, if one is appointed.

               (g) "Common Stock" shall mean the Common Stock of the Company.

               (h) "Company" shall mean ESS Technology, Inc., a California
corporation.

               (i) "Consultant" means any person, including an advisor, who is
engaged by the Company or any Parent or Subsidiary to render services and is
compensated for such services, and any director of the Company whether
compensated for such services or not.

               (j) "Continuous Status as an Employee or Consultant" shall mean
the absence of any interruption or termination of service as an Employee or
Consultant. Continuous Status as an Employee or Consultant shall not be
considered interrupted in the case of sick leave, military leave, or any other
leave of absence approved by the Administrator; provided that such leave is for
a period of not more than 90 days or reemployment upon the expiration of such
leave is guaranteed by contract or statute. For purposes of this Plan, a change
in status from an

<PAGE>   2

Employee to a Consultant or from a Consultant to an Employee will not constitute
a termination of employment.

               (k) "Director" shall mean a member of the Board.

               (l) "Employee" shall mean any person (including any Named
Executive, Officer or Director) employed by the Company or any Parent,
Subsidiary or Affiliate of the Company. The payment by the Company of a
director's fee to a Director shall not be sufficient to constitute "employment"
of such Director by the Company.

               (m) "Exchange Act" shall mean the Securities Exchange Act of
1934, as amended.

               (n) "Fair Market Value" means, as of any date, the value of
Common Stock determined as follows:

                       (i) If the Common Stock is listed on any established 
stock exchange or a national market system including without limitation the
National Market of the National Association of Securities Dealers, Inc.
Automated Quotation ("Nasdaq") System, its Fair Market Value shall be the
closing sales price for such stock as quoted on such system on the date of
determination (as defined in paragraph (iv) below) (if for a given day no sales
were reported, the closing bid on that day shall be used), as such price is
reported in The Wall Street Journal or such other source as the Administrator
deems reliable;

                      (ii) If the Common Stock is quoted on the Nasdaq System
(but not on the National Market thereof) or regularly quoted by a recognized
securities dealer but selling prices are not reported, its Fair Market Value
shall be the mean between the bid and asked prices for the Common Stock; or

                     (iii) In the absence of an established market for the
Common Stock, the Fair Market Value thereof shall be determined in good faith by
the Administrator.

                      (iv) For purposes of this Plan, the date of determination
shall mean the last trading date prior to the date of grant (as determined
pursuant to Section 15 of this Plan).

               (o) "Incentive Stock Option" shall mean an Option intended to
qualify as an incentive stock option within the meaning of Section 422 of the
Code, as designated in the applicable written option agreement.

               (p) "Named Executive" shall mean any individual who, on the last
day of the Company's fiscal year, is the chief executive officer of the Company
(or is acting in such capacity) or among the four highest compensated officers
of the Company (other than the chief executive officer). Such officer status
shall be determined pursuant to the executive compensation disclosure rules
under the Exchange Act.



                                      -2-
<PAGE>   3

               (q) "Nonstatutory Stock Option" shall mean an Option not intended
to qualify as an Incentive Stock Option, as designated in the applicable written
option agreement.

               (r) "Officer" shall mean a person who is an officer of the
Company within the meaning of Section 16 of the Exchange Act and the rules and
regulations promulgated thereunder.

               (s) "Option" shall mean a stock option granted pursuant to the
Plan.

               (t) "Optioned Stock" shall mean the Common Stock subject to an
Option.

               (u) "Optionee" shall mean an Employee or Consultant who receives
an Option.

               (v) "Parent" shall mean a "parent corporation," whether now or
hereafter existing, as defined in Section 424(e) of the Code.

               (w) "Plan" shall mean this 1997 Equity Incentive Plan.

               (x) "Rule 16b-3" shall mean Rule 16b-3 promulgated under the
Exchange Act as the same may be amended from time to time, or any successor
provision.

               (y) "Share" shall mean a share of the Common Stock, as adjusted
in accordance with Section 14 of the Plan.

               (z) "Subsidiary" shall mean a "subsidiary corporation," whether
now or hereafter existing, as defined in Section 424(f) of the Code.

        3. STOCK SUBJECT TO THE PLAN. Subject to the provisions of Section 14 of
the Plan, the maximum aggregate number of shares that may be optioned and sold
under the Plan is 5,000,000 shares of Common Stock. The Shares may be
authorized, but unissued, or reacquired Common Stock.

        If an Option should expire or become unexercisable for any reason
without having been exercised in full, the unpurchased Shares that were subject
thereto shall, unless the Plan shall have been terminated, become available for
future grant under the Plan. Notwithstanding any other provision of the Plan,
shares issued under the Plan and later repurchased by the Company shall not
become available for future grant under the Plan.

        4. ADMINISTRATION OF THE PLAN.

               (a)    COMPOSITION OF ADMINISTRATOR.

                       (i) MULTIPLE ADMINISTRATIVE BODIES. If permitted by Rule
16b-3, and by the legal requirements relating to the administration of incentive
stock option plans, if any, of applicable securities laws and the Code
(collectively, the "Applicable Laws"), grants under the



                                      -3-
<PAGE>   4

Plan may (but need not) be made by different administrative
bodies with respect to Directors, Officers who are not directors and Employees
who are neither Directors nor Officers.

                      (ii) ADMINISTRATION WITH RESPECT TO DIRECTORS AND 
OFFICERS. With respect to grants of Options to Employees or Consultants who are
also Officers or Directors of the Company, grants under the Plan shall be made
by (A) the Board, if the Board may make grants under the Plan in compliance with
Rule 16b-3 and Section 162(m) of the Code as it applies so as to qualify grants
of Options to Named Executives as performance-based compensation, or (B) a
Committee designated by the Board to make grants under the Plan, which Committee
shall be constituted in such a manner as to permit grants under the Plan to
comply with Rule 16b-3, to qualify grants of Options to Named Executives as
performance-based compensation under Section 162(m) of the Code and otherwise so
as to satisfy the Applicable Laws.

                     (iii) ADMINISTRATION WITH RESPECT TO OTHER PERSONS. With
respect to grants of Options to Employees or Consultants who are neither
Directors nor Officers of the Company, the Plan shall be administered by (A) the
Board or (B) a Committee designated by the Board, which Committee shall be
constituted in such a manner as to satisfy the Applicable Laws.

                      (iv) GENERAL. If a Committee has been appointed pursuant
to subsection (ii) or (iii) of this Section 4(a), such Committee shall continue
to serve in its designated capacity until otherwise directed by the Board. From
time to time the Board may increase the size of any Committee and appoint
additional members thereof, remove members (with or without cause) and appoint
new members in substitution therefor, fill vacancies (however caused) and remove
all members of a Committee and thereafter directly administer the Plan, all to
the extent permitted by the Applicable Laws and, in the case of a Committee
appointed under subsection (ii), to the extent permitted by Rule 16b-3 and to
the extent required under Section 162(m) of the Code to qualify grants of
Options to Named Executives as performance-based compensation.

               (b) POWERS OF THE ADMINISTRATOR. Subject to the provisions of the
Plan and in the case of a Committee, the specific duties delegated by the Board
to such Committee, the Administrator shall have the authority, in its
discretion:

                      (i) to determine the Fair Market Value of the Common
Stock, in accordance with Section 2(n) of the Plan;

                      (ii) to select the Employees and Consultants to whom
Options may from time to time be granted hereunder;

                      (iii) to determine whether and to what extent Options are
granted hereunder;

                      (iv) to determine the number of shares of Common Stock to
be covered by each such award granted hereunder;



                                      -4-
<PAGE>   5

                      (v) to approve forms of agreement for use under the Plan;

                      (vi) to determine the terms and conditions, not
inconsistent with the terms of the Plan, of any award granted hereunder
(including, but not limited to, the share price and any restriction or
limitation, or any vesting acceleration or waiver of forfeiture restrictions
regarding any Option and/or the shares of Common Stock relating thereto, based
in each case on such factors as the Administrator shall determine, in its sole
discretion);

                      (vii) to reduce the exercise price of any Option to the
then current Fair Market Value if the Fair Market Value of the Common Stock
covered by such Option shall have declined since the date the Option was
granted.

               (c) EFFECT OF ADMINISTRATOR'S DECISION. All decisions,
determinations and interpretations of the Administrator shall be final and
binding on all Optionees and any other holders of any Options.

        5.     ELIGIBILITY.

               (a) RECIPIENTS OF GRANTS. Nonstatutory Stock Options may be
granted to Employees and Consultants. Incentive Stock Options may be granted
only to Employees, provided, however, that Employees of an Affiliate shall not
be eligible to receive Incentive Stock Options. An Employee or Consultant who
has been granted an Option may, if he or she is otherwise eligible, be granted
an additional Option or Options.

               (b) TYPE OF OPTION. Each Option shall be designated in the
written option agreement as either an Incentive Stock Option or a Nonstatutory
Stock Option. However, notwithstanding such designations, to the extent that the
aggregate Fair Market Value of Shares with respect to which Incentive Stock
Options are exercisable for the first time by an Optionee during any calendar
year (under all plans of the Company or any Parent or Subsidiary) exceeds
$100,000, such excess Options shall be treated as Nonstatutory Stock Options.
For purposes of this Section 5(b), Incentive Stock Options shall be taken into
account in the order in which they were granted, and the Fair Market Value of
the Shares shall be determined as of the time the Option with respect to such
Shares is granted.

               (c) NO EMPLOYMENT RIGHTS. The Plan shall not confer upon any
Optionee any right with respect to continuation of employment or consulting
relationship with the Company, nor shall it interfere in any way with his or her
right or the Company's right to terminate his or her employment or consulting
relationship at any time, with or without cause.

        6. TERM OF PLAN. The Plan shall become effective upon the earlier to
occur of its adoption by the Board or its approval by the shareholders of the
Company as described in Section 20 of the Plan. It shall continue in effect for
a term of ten (10) years unless sooner terminated under Section 16 of the Plan.

        7. TERM OF OPTION. The term of each Option shall be no more than ten
(10) years from the date of grant thereof or such shorter term as may be
provided in the Option Agreement.



                                      -5-
<PAGE>   6

However, in the case of an Option granted to an Optionee who, at the time the
Option is granted, owns stock representing more than ten percent (10%) of the
voting power of all classes of stock of the Company or any Parent or Subsidiary,
the term of the Option shall be five (5) years from the date of grant thereof or
such shorter term as may be provided in the Option Agreement.

        8. LIMITATION ON GRANTS TO EMPLOYEES. Subject to adjustment as provided
in this Plan, the maximum number of Shares which may be subject to options
granted to any one Employee under this Plan for any fiscal year of the Company
shall be 375,000, except that new employees of the Company or of a Parent or
Subsidiary of the Company (including new employees who are also officers and
directors of the Company or any Parent or Subsidiary of the Company) are
eligible to receive up to a maximum of 750,000 Shares in the calendar year in
which they commence their employment.

        9.     OPTION EXERCISE PRICE AND CONSIDERATION.

               (a) EXERCISE PRICE. The per Share exercise price for the Shares
to be issued pursuant to exercise of an Option shall be such price as is
determined by the Administrator, but shall be subject to the following:

                       (i)   In the case of an Incentive Stock Option

                             (A) granted to an Employee who, at the time of the
grant of such Incentive Stock Option, owns stock representing more than ten
percent (10%) of the voting power of all classes of stock of the Company or any
Parent or Subsidiary, the per Share exercise price shall be no less than 110% of
the Fair Market Value per Share on the date of determination; or

                             (B) granted to any other Employee, the per Share
exercise price shall be no less than 100% of the Fair Market Value per Share on
the date of determination.

                      (ii) In the case of a Nonstatutory Stock Option, the per
share Exercise Price shall be no less than 100% of the Fair Market Value on the
date of determination.

                      (iii) Notwithstanding anything to the contrary in
subsections 9(a)(i) or 9(a)(ii) above, in the case of an Option granted on or
after the effective date of registration of any class of equity security of the
Company pursuant to Section 12 of the Exchange Act and prior to six months after
the termination of such registration, the per Share exercise price shall be no
less than 100% of the Fair Market Value per Share on the date of determination.

               (b) PERMISSIBLE CONSIDERATION. The consideration to be paid for
the Shares to be issued upon exercise of an Option, including the method of
payment, shall be determined by the Administrator (and, in the case of an
Incentive Stock Option, shall be determined at the time of grant) and may
consist entirely of (1) cash, (2) check, (3) promissory note, (4) other Shares
that (x) in the case of Shares acquired upon exercise of an Option either have
been owned by the Optionee for more than six months on the date of surrender or
were not acquired, directly or indirectly, from the Company, and (y) have a Fair
Market Value on the date of surrender equal



                                      -6-
<PAGE>   7

to the aggregate exercise price of the Shares as to which said Option shall be
exercised, (5) authorization from the Company to retain from the total number of
Shares as to which the Option is exercised that number of Shares having a Fair
Market Value on the date of exercise equal to the exercise price for the total
number of Shares as to which the Option is exercised, (6) delivery of a properly
executed exercise notice together with irrevocable instructions to a broker to
deliver promptly to the Company the amount of sale or loan proceeds required to
pay the exercise price, (7) any combination of the foregoing methods of payment,
or (8) such other consideration and method of payment for the issuance of Shares
to the extent permitted under Applicable Laws. In making its determination as to
the type of consideration to accept, the Administrator shall consider if
acceptance of such consideration may be reasonably expected to benefit the
Company.

        10.    EXERCISE OF OPTION.

               (a) PROCEDURE FOR EXERCISE; RIGHTS AS A SHAREHOLDER. Any Option
granted hereunder shall be exercisable at such times and under such conditions
as determined by the Administrator, including performance criteria with respect
to the Company and/or the Optionee, and as shall be permissible under the terms
of the Plan.

               An Option may not be exercised for a fraction of a Share.

               An Option shall be deemed to be exercised when written notice of
such exercise has been given to the Company in accordance with the terms of the
Option by the person entitled to exercise the Option and full payment for the
Shares with respect to which the Option is exercised has been received by the
Company. Full payment may, as authorized by the Administrator, consist of any
consideration and method of payment allowable under Section 9(b) of the Plan.
Until the issuance (as evidenced by the appropriate entry on the books of the
Company or of a duly authorized transfer agent of the Company) of the stock
certificate evidencing such Shares, no right to vote or receive dividends or any
other rights as a shareholder shall exist with respect to the Optioned Stock,
notwithstanding the exercise of the Option. The Company shall issue (or cause to
be issued) such stock certificate promptly upon exercise of the Option. No
adjustment will be made for a dividend or other right for which the record date
is prior to the date the stock certificate is issued, except as provided in
Section 14 of the Plan.

               Exercise of an Option in any manner shall result in a decrease in
the number of Shares which thereafter may be available, both for purposes of the
Plan and for sale under the Option, by the number of Shares as to which the
Option is exercised.

               (b) TERMINATION OF STATUS AS AN EMPLOYEE OR CONSULTANT. In the
event of termination of an Optionee's Continuous Status as an Employee or
Consultant, such Optionee may, but only within thirty (30) days (or such other
period of time, not exceeding three (3) months in the case of an Incentive Stock
Option or six (6) months in the case of a Nonstatutory Stock Option, as is
determined by the Administrator, with such determination in the case of an
Incentive Stock Option being made at the time of grant of the Option) after the
date of such termination (but in no event later than the date of expiration of
the term of such Option as set forth in the Option Agreement), exercise his or
her Option to the extent that he or she was



                                      -7-
<PAGE>   8

entitled to exercise it at the date of such termination. To the extent that the
Optionee was not entitled to exercise the Option at the date of such
termination, or if the optionee does not exercise such Option (which he or she
was entitled to exercise) within the time specified herein, the Option shall
terminate.

               (c) DISABILITY OF OPTIONEE. Notwithstanding Section 10(b) above,
in the event of termination of an Optionee's Continuous Status as an Employee or
Consultant as a result of his or her total and permanent disability (as defined
in Section 22(e)(3) of the Code), he or she may, but only within six (6) months
(or such other period of time not exceeding twelve (12) months as is determined
by the Administrator, with such determination in the case of an Incentive Stock
Option being made at the time of grant of the Option) from the date of such
termination (but in no event later than the date of expiration of the term of
such Option as set forth in the Option Agreement), exercise his or her Option to
the extent he or she was entitled to exercise it at the date of such
termination. To the extent that he or she was not entitled to exercise the
Option at the date of termination, or if he does not exercise such Option (which
he was entitled to exercise) within the time specified herein, the Option shall
terminate.

               (d) DEATH OF OPTIONEE. In the event of the death of an Optionee:

                       (i) during the term of the Option who is at the time of
his death an Employee or Consultant of the Company and who shall have been in
Continuous Status as an Employee or Consultant since the date of grant of the
Option, the Option may be exercised, at any time within six (6) months (or such
other period of time, not exceeding twelve (12) months, as is determined by the
Administrator, with such determination in the case of an Incentive Stock Option
being made at the time of grant of the Option) following the date of death (but
in no event later than the date of expiration of the term of such Option as set
forth in the Option Agreement), by the Optionee's estate or by a person who
acquired the right to exercise the Option by bequest or inheritance but only to
the extent of the right to exercise that would have accrued had the Optionee
continued living and remained in Continuous Status as an Employee or Consultant
three (3) months (or such other period of time as is determined by the
Administrator as provided above) after the date of death, subject to the
limitation set forth in Section 5(b); or

                      (ii) within thirty (30) days (or such other period of time
not exceeding three (3) months as is determined by the Administrator, with such
determination in the case of an Incentive Stock Option being made at the time of
grant of the Option) after the termination of Continuous Status as an Employee
or Consultant, the Option may be exercised, at any time within six (6) months
following the date of death (but in no event later than the date of expiration
of the term of such Option as set forth in the Option Agreement), by the
Optionee's estate or by a person who acquired the right to exercise the Option
by bequest or inheritance, but only to the extent of the right to exercise that
had accrued at the date of termination.

               (e) RULE 16B-3. Options granted to persons subject to Section
16(b) of the Exchange Act must comply with Rule 16b-3 and shall contain such
additional conditions or restrictions as may be required thereunder to qualify
for the maximum exemption from Section 16 of the Exchange Act with respect to
Plan transactions.



                                      -8-
<PAGE>   9
        11. WITHHOLDING TAXES. As a condition to the exercise of Options granted
hereunder, the Optionee shall make such arrangements as the Administrator may
require for the satisfaction of any federal, state, local or foreign withholding
tax obligations that may arise in connection with the exercise, receipt or
vesting of such Option. The Company shall not be required to issue any Shares
under the Plan until such obligations are satisfied.

        12. STOCK WITHHOLDING TO SATISFY WITHHOLDING TAX OBLIGATIONS. At the
discretion of the Administrator, Optionees may satisfy withholding obligations
as provided in this paragraph. When an Optionee incurs tax liability in
connection with an Option which tax liability is subject to tax withholding
under applicable tax laws, and the Optionee is obligated to pay the Company an
amount required to be withheld under applicable tax laws, the Optionee may
satisfy the withholding tax obligation by one or some combination of the
following methods: (a) by cash payment, or (b) out of Optionee's current
compensation, or (c) if permitted by the Administrator, in its discretion, by
surrendering to the Company Shares that (i) in the case of Shares previously
acquired from the Company, have been owned by the Optionee for more than six
months on the date of surrender, and (ii) have a fair market value on the date
of surrender equal to or less than Optionee's marginal tax rate times the
ordinary income recognized, or (d) by electing to have the Company withhold from
the Shares to be issued upon exercise of the Option that number of Shares having
a fair market value equal to the amount required to be withheld. For this
purpose, the fair market value of the Shares to be withheld shall be determined
on the date that the amount of tax to be withheld is to be determined (the "Tax
Date").

               Any surrender by an Officer or Director of previously owned
Shares to satisfy tax withholding obligations arising upon exercise of this
Option must comply with the applicable provisions of Rule 16b-3.

               All elections by an Optionee to have Shares withheld to satisfy
tax withholding obligations shall be made in writing in a form acceptable to the
Administrator and shall be subject to the following restrictions:

               (a) the election must be made on or prior to the applicable Tax 
Date;

               (b) once made, the election shall be irrevocable as to the
particular Shares of the Option as to which the election is made; and

               (c) all elections shall be subject to the consent or disapproval
of the Administrator.

               In the event the election to have Shares withheld is made by an
Optionee and the Tax Date is deferred under Section 83 of the Code because no
election is filed under Section 83(b) of the Code, the Optionee shall receive
the full number of Shares with respect to which the Option is exercised but such
Optionee shall be unconditionally obligated to tender back to the Company the
proper number of Shares on the Tax Date.



                                      -9-
<PAGE>   10

        13. NON-TRANSFERABILITY OF OPTIONS. The Option may not be sold, pledged,
assigned, hypothecated, transferred, or disposed of in any manner other than by
will or by the laws of descent or distribution. The designation of a beneficiary
by an Optionee will not constitute a transfer. An Option may be exercised,
during the lifetime of the Optionee, only by the Optionee or a transferee
permitted by this Section 13.

        14. ADJUSTMENTS UPON CHANGES IN CAPITALIZATION; CORPORATE TRANSACTIONS.

               (a) ADJUSTMENT. Subject to any required action by the
shareholders of the Company, the number of shares of Common Stock covered by
each outstanding Option, the number of shares of Common Stock that have been
authorized for issuance under the Plan but as to which no Options have yet been
granted or which have been returned to the Plan upon cancellation or expiration
of an Option, the maximum number of shares of Common Stock for which Options may
be granted to any employee under Section 8 of the Plan, and the price per share
of Common Stock covered by each such outstanding Option, shall be
proportionately adjusted for any increase or decrease in the number of issued
shares of Common Stock resulting from a stock split, reverse stock split, stock
dividend, combination or reclassification of the Common Stock, or any other
increase or decrease in the number of issued shares of Common Stock effected
without receipt of consideration by the Company; provided, however, that
conversion of any convertible securities of the Company shall not be deemed to
have been "effected without receipt of consideration." Such adjustment shall be
made by the Administrator, whose determination in that respect shall be final,
binding and conclusive. Except as expressly provided herein, no issuance by the
Company of shares of stock of any class, or securities convertible into shares
of stock of any class, shall affect, and no adjustment by reason thereof shall
be made with respect to, the number or price of shares of Common Stock subject
to an Option.

               (b) CORPORATE TRANSACTIONS. In the event of the proposed
dissolution or liquidation of the Company, the Option will terminate immediately
prior to the consummation of such proposed action, unless otherwise provided by
the Administrator. The Administrator may, in the exercise of its sole discretion
in such instances, declare that any Option shall terminate as of a date fixed by
the Administrator and give each Optionee the right to exercise his or her Option
as to all or any part of the Optioned Stock, including Shares as to which the
Option would not otherwise be exercisable. In the event of a proposed sale of
all or substantially all of the assets of the Company, or the merger of the
Company with or into another corporation, the Option shall be assumed or an
equivalent option shall be substituted by such successor corporation or a parent
or subsidiary of such successor corporation, unless the Administrator
determines, in the exercise of its sole discretion and in lieu of such
assumption or substitution, that the Optionee shall have the right to exercise
the Option as to some or all of the Optioned Stock, including Shares as to which
the Option would not otherwise be exercisable. If the Administrator makes an
Option exercisable in lieu of assumption or substitution in the event of a
merger or sale of assets, the Administrator shall notify the Optionee that the
Option shall be exercisable for a period of fifteen (15) days from the date of
such notice, and the Option will terminate upon the expiration of such period.



                                      -10-
<PAGE>   11

        15. TIME OF GRANTING OPTIONS. The date of grant of an Option shall, for
all purposes, be the date on which the Administrator makes the determination
granting such Option or such other date as is determined by the Administrator;
provided however that the grant date shall be the later of the date on which the
Administrator makes the determination granting such Option or the date of
commencement of the Optionee's employment relationship with the Company. Notice
of the determination shall be given to each Employee or Consultant to whom an
Option is so granted within a reasonable time after the date of such grant.

        16. AMENDMENT AND TERMINATION OF THE PLAN.

               (a) AMENDMENT AND TERMINATION. The Board may amend or terminate
the Plan from time to time in such respects as the Board may deem advisable;
provided that, the following revisions or amendments shall require approval of
the shareholders of the Company in the manner described in Section 20 of the
Plan:

                      (i) any increase in the number of Shares subject to the
Plan, other than an adjustment under Section 14 of the Plan;

                      (ii) any change in the designation of the class of persons
eligible to be granted Options; or

                      (iii) any change in the limitation on grants to employees
as described in Section 8 of the Plan or other changes which would require
shareholder approval to qualify options granted hereunder as performance-based
compensation under Section 162(m) of the Code.

               (b) SHAREHOLDER APPROVAL. If any amendment requiring shareholder
approval under Section 16(a) of the Plan is made subsequent to the first
registration of any class of equity securities by the Company under Section 12
of the Exchange Act, such shareholder approval shall be solicited as described
in Section 20 of the Plan.

               (c) EFFECT OF AMENDMENT OR TERMINATION. Any such amendment or
termination of the Plan shall not affect Options already granted and such
Options shall remain in full force and effect as if this Plan had not been
amended or terminated, unless mutually agreed otherwise between the Optionee and
the Board, which agreement must be in writing and signed by the Optionee and the
Company.

        17. CONDITIONS UPON ISSUANCE OF SHARES. Shares shall not be issued
pursuant to the exercise of an Option unless the exercise of such Option and the
issuance and delivery of such Shares pursuant thereto shall comply with all
relevant provisions of law, including, without limitation, the Securities Act of
1933, as amended, the Exchange Act, the rules and regulations promulgated
thereunder, and the requirements of any stock exchange upon which the Shares may
then be listed, and shall be further subject to the approval of counsel for the
Company with respect to such compliance.



                                      -11-
<PAGE>   12

        As a condition to the exercise of an Option, the Company may require the
person exercising such Option to represent and warrant at the time of any such
exercise that the Shares are being purchased only for investment and without any
present intention to sell or distribute such Shares if, in the opinion of
counsel for the Company, such a representation is required by any of the
aforementioned relevant provisions of law.

        18. RESERVATION OF SHARES. The Company, during the term of this Plan,
will at all times reserve and keep available such number of Shares as shall be
sufficient to satisfy the requirements of the Plan. The inability of the Company
to obtain authority from any regulatory body having jurisdiction, which
authority is deemed by the Company's counsel to be necessary to the lawful
issuance and sale of any Shares hereunder, shall relieve the Company of any
liability in respect of the failure to issue or sell such Shares as to which
such requisite authority shall not have been obtained.

        19. OPTION AGREEMENT. Options shall be evidenced by written option
agreements in such form as the Board shall approve.

        20. SHAREHOLDER APPROVAL.

               (a) Continuance of the Plan shall be subject to approval by the
shareholders of the Company within twelve (12) months before or after the date
the Plan is adopted. Such shareholder approval shall be obtained in the manner
and to the degree required under applicable federal and state law and the rules
of any stock exchange upon which the Shares are listed.

               (b) In the event that the Company registers any class of equity
securities pursuant to Section 12 of the Exchange Act, any required approval of
the shareholders of the Company obtained after such registration shall be
solicited substantially in accordance with Section 14(a) of the Exchange Act and
the rules and regulations promulgated thereunder.

               (c) If any required approval by the shareholders of the Plan
itself or of any amendment thereto is solicited at any time otherwise than in
the manner described in Section 20(b) hereof, then the Company shall, at or
prior to the first annual meeting of shareholders held subsequent to the later
of (1) the first registration of any class of equity securities of the Company
under Section 12 of the Exchange Act or (2) the granting of an Option hereunder
to an officer or director after such registration, do the following:

                      (i) furnish in writing to the holders entitled to vote for
the Plan substantially the same information that would be required (if proxies
to be voted with respect to approval or disapproval of the Plan or amendment
were then being solicited) by the rules and regulations in effect under Section
14(a) of the Exchange Act at the time such information is furnished; and

                      (ii) file with, or mail for filing to, the Securities and
Exchange Commission four copies of the written information referred to in
subsection (i) hereof not later than the date on which such information is first
sent or given to shareholders.



                                      -12-


<PAGE>   1
 
                                                                   EXHIBIT 11.01
 
                              ESS TECHNOLOGY, INC.
 
                      COMPUTATION OF NET INCOME PER SHARE
                    (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
 
<TABLE>
<CAPTION>
                                                                  YEAR ENDED DECEMBER 31,
                                                              -------------------------------
                                                               1996        1997        1998
                                                              -------    --------    --------
<S>                                                           <C>        <C>         <C>
Weighted average common shares..............................   37,702      39,953      40,955
Weighted average incremental common equivalent shares:
  Common stock(2)...........................................    3,886          --          --
  Cheap stock(2)............................................       --          --          --
                                                              -------    --------    --------
Total weighted average common and common equivalent
  shares....................................................   41,588      39,593      40,955
                                                              =======    ========    ========
Net income (loss)...........................................  $21,626    $(10,866)   $(28,016)
                                                              =======    ========    ========
Net income (loss) per share.................................  $  0.52    $  (0.27)   $  (0.68)
                                                              =======    ========    ========
</TABLE>
 
- ---------------
 
(1) This Exhibit should be read in conjunction with Note 1 of Notes to
    Consolidated Financial Statements.
 
(2) Earnings per share is computed using the weighted average number of common
    and common equivalent shares ("weighted average shares") outstanding during
    the period. Common equivalent shares consist of the Company's common stock
    issuable upon exercise of stock options (using the treasury stock method),
    except when antidilutive. Common stock issued and stock options granted
    subsequent to July 31, 1994 through October 5, 1995, (the date of the
    initial public offering) have been included in the calculation of weighted
    average shares outstanding as if they were outstanding for reporting periods
    occurring between these dates. The Company used the treasury stock method
    and the initial public offering price of $15.00 per share for these
    calculations.

<PAGE>   1
 
                                                                   EXHIBIT 21.01
 
                       LIST OF REGISTRANT'S SUBSIDIARIES
 
<TABLE>
<CAPTION>
                                                                                         PERCENTAGE OWNED
                          NAME                            JURISDICTION OF ORGANIZATION    BY REGISTRANT
                          ----                            ----------------------------   ----------------
<S>                                                       <C>                            <C>
ESS (Far East) Ltd. ....................................           Hong Kong                   100%
ESS Technology International, Inc. .....................         Cayman Islands                100%
OSEE Technology, Inc. ..................................           California                  100%
VideoCore Technology, Inc. .............................           California                  100%
Platform Technologies, Inc. ............................           California                  100%
ESS International, Inc. ................................         Cayman Island                 100%
Viva Media Corporation..................................             Hawaii                    100%
Wei Fhi Technology, Inc. ...............................         Cayman Island                 100%
Vsystems International, Inc. ...........................         Cayman Island                 100%
</TABLE>

<PAGE>   1
 
                                                                   EXHIBIT 23.01
 
                       CONSENT OF INDEPENDENT ACCOUNTANTS
 
     We hereby consent to the incorporation by reference in the Registration
Statement on Form S-8 (No. 33-97830) of ESS Technology, Inc. of our report dated
January 21, 1999, which appears on page 26 of this Form 10-K.
 
                                          PRICEWATERHOUSECOOPERS LLP
 
San Jose, California
March 31, 1999

<TABLE> <S> <C>

<ARTICLE> 5
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<CASH>                                          65,752
<SECURITIES>                                    16,719
<RECEIVABLES>                                   41,758
<ALLOWANCES>                                     3,928
<INVENTORY>                                     22,882
<CURRENT-ASSETS>                               153,697
<PP&E>                                          54,977
<DEPRECIATION>                                  16,977
<TOTAL-ASSETS>                                 214,645
<CURRENT-LIABILITIES>                           72,573
<BONDS>                                              0
                                0
                                          0
<COMMON>                                       137,312
<OTHER-SE>                                           0
<TOTAL-LIABILITY-AND-EQUITY>                   214,645
<SALES>                                        218,252
<TOTAL-REVENUES>                               218,252
<CGS>                                          182,417
<TOTAL-COSTS>                                  182,417
<OTHER-EXPENSES>                                66,818
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                             (1,478)
<INCOME-PRETAX>                               (29,505)
<INCOME-TAX>                                   (1,489)
<INCOME-CONTINUING>                           (28,016)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                  (28,016)
<EPS-PRIMARY>                                    (.68)
<EPS-DILUTED>                                    (.68)
        

</TABLE>


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