<PAGE>
EXHIBIT 99.1
------------
KULICKE & SOFFA DECLARES 2-FOR-1 STOCK SPLIT
WILLOW GROVE, Pa.--(BUSINESS WIRE)--June 26, 2000--Kulicke & Soffa Industries
Inc. (NASDAQ:KLIC - news) today announced that its Board of Directors has
approved a 2-for-1 stock split of its common stock.
Pursuant to the stock split, each shareholder of record at the close of business
on July 17, 2000 will be entitled to receive one additional share for each
common share held at the close of business on that date. These additional shares
will be distributed by the transfer agent on or about July 31, 2000. In
connection with the stock split and in accordance with applicable Pennsylvania
law, the Board of Directors also has approved an amendment to the Company's
Articles of Incorporation increasing the number of authorized shares of common
stock from 100,000,000 to 200,000,000 in proportion to the 2-for-1 split.
Kulicke & Soffa is the world's largest supplier of semiconductor assembly
equipment. The company provides scaleable solutions for the assembly of chip and
wire, flip chip and chip scale packages. Chip and wire solutions combine wire
bonding, die bonding and wafer dicing equipment with wire, capillaries, die
collets, saw blades and die attach materials. Flip chip solutions include die
placement equipment, flip chip bumping technology, glob top and underfill
materials, and thin film laminates. K&S also offers unique CSP packaging
technology as well as factory integration products and services. It has sales,
service and applications development facilities worldwide. Kulicke & Soffa's web
site address is www.kns.com.
-5-
