MENTOR GRAPHICS CORP
S-3, 1994-02-28
COMPUTER INTEGRATED SYSTEMS DESIGN
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As filed with the Securities and Exchange Commission on February 
28, 1994.
                                            Registration No. 33-


                  SECURITIES AND EXCHANGE COMMISSION 
                       Washington, D.C. 20549 
                                                
 
                              Form S-3 
                        REGISTRATION STATEMENT 
                                Under 
                       THE SECURITIES ACT OF 1933 
                                                


                       MENTOR GRAPHICS CORPORATION 
           (Exact name of registrant as specified in charter) 
                                                
 
            OREGON                             93-0786033 
(State or other jurisdiction                 (IRS Employer 
of incorporation or organization)          Identification No.) 


    8005 SW Boeckman Road 
    Wilsonville, Oregon                        97070-7777 
   (Address of Principal                       (Zip Code) 
    Executive Offices) 


                           Frank S. Delia 
            Vice President, General Counsel and Secretary 
                     Mentor Graphics Corporation 
                        8005 SW Boeckman Road 
                   Wilsonville, Oregon 97070-7777 
               (Name and address of agent for service) 
 
Telephone number, including area code, of agent for service:
(503)685-7000

                              Copy to: 
 
                         STUART W. CHESTLER 
                   Stoel Rives Boley Jones & Grey 
                         900 SW Fifth Avenue 
                     Portland, Oregon 97204-1268 

      Approximate date of commencement of proposed sale to the 
public:As soon as practicable after this registration becomes 
effective 

If the only securities being registered on this Form are to be 
offered pursuant to dividend or interest reinvestment plans, 
please check the following box.  [ ] 

If any of the securities being registered on this Form are to be 
offered on a delayed or continuous basis pursuant to Rule 415 
under the Securities Act of 1933, other than securities offered 
only in connection with a dividend or interest reinvestment plan, 
check the following box.  [X]


CALCULATION OF REGISTRATION FEE 
_______________________________________________________________


                                     Propose   Proposed   Amount
                                     Maximum   Maximum      of 
                     Amount          Offering  Aggregate  Regis-
Title of Securities  to Be           Price Per Offering   tration
to Be Registered    Registered       Share(1)  Price(1)   Fee

Common Stock, without 
 par value           420,613 Shares $13.32    $5,602,566 $1,932

_______________________________________________________________

(1)     Estimated solely for the purpose of calculating the 
registration fee pursuant to Rule 457(c) under the Securities Act 
of 1933.  The calculation of the registration fee is based on 
$13.32 per share, which was the average of the high and low prices 
of the Common Stock on February 23, 1994, as reported in he Wall 
Street Journal for NASDAQ National Market Issues. 

        The registrant hereby amends this registration statement 
on such date or dates as may be necessary to delay its effective 
date until the registrant shall file a further amendment which 
specifically states that this registration statement shall 
thereafter become effective in accordance with section 8(a) of the 
Securities Act of 1933 or until the registration statement shall 
become effective on such date as the Commission, acting pursuant 
to said section 8(a), may determine.










                                    2


                       CROSS-REFERENCE SHEET 
 
        SHOWING LOCATION IN THE PROSPECTUS OF ITEMS OF FORM S-3 
 
                                               Caption or 
Registration Statement Item and Heading   Location in Prospectus 

1.  Forepart of the Registration 
    Statement and Outside Front 
    Cover Page of Prospectus............  First Page of Prospectus

2.  Inside Front and Outside Back 
    Cover Pages of Prospectus...........  Available Information 

3A. Summary Information.................  The Company 

3B. Risk Factors and Ratio of 
    Earnings to Fixed Charges...........  Not Applicable 

4.  Use of Proceeds.....................  Not Applicable 

5.  Determination of Offering Price.....  Not Applicable 

6.  Dilution............................  Not Applicable 

7.  Selling Security Holders............  Selling Shareholders 

8.  Plan of Distribution................  Plan of Distribution 

9.  Description of Securities to be 
    Registered..........................  Not Applicable 

10. Interests of Named Experts and 
    Counsel.............................  Not Applicable 

11. Material Changes....................  Recent Developments

12. Incorporation of Certain Documents 
    by Reference........................  Incorporation of  
                                          Certain Documents by 
                                          Reference 

13. Disclosure of Commission Position 
    on Indemnification for 
    Securities Act Liabilities..........  Not Applicable






                               3


PROSPECTUS  
 
                  MENTOR GRAPHICS CORPORATION 
 
                420,613 Shares of Common Stock 
                      (without par value) 


THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE 
SECURITIES AND EXCHANGE COMMISSION NOR HAS THE COMMISSION 
PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS.  ANY 
REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE. 

          The Common Stock of Mentor Graphics Corporation ("the 
Company") offered hereby (the "Shares") may be sold by certain 
shareholders of the Company (the "Selling Shareholders").  The 
Company will not receive any of the proceeds from the offering. 

          The Common Stock of the Company is traded over-the-
counter in the NASDAQ National Market System.  On February 23,
1994, the closing price for the Common Stock as reported in The 
Wall Street Journal was $ 13.13 per share. 

          The Shares may be offered or sold from time to time 
by the Selling Shareholders at market prices then prevailing, 
in negotiated transactions or otherwise.  Brokers or dealers 
will receive commissions or discounts from Selling Shareholders 
in amounts to be negotiated immediately prior to the sale.  See 
"PLAN OF DISTRIBUTION." 
                                            

          No person has been authorized to give any information 
or to make any representations in connection with this offering 
other than those contained in this Prospectus.  This Prospectus 
does not constitute an offering in any jurisdiction in which 
such offering may not lawfully be made. 
                                            

          Neither the delivery of this Prospectus nor any sale 
made hereunder shall, under any circumstances, create any 
implication that there has been no change in the affairs of the 
Company since the respective dates as to which information has 
been given herein. 
                                            

         The date of this Prospectus is February 28, 1994. 

                         THE COMPANY 

          Mentor Graphics Corporation (the "Company"), an 
Oregon corporation organized in 1981, is headquartered in 
Wilsonville, Oregon.  The Company's common stock is traded on 
the NASDAQ National Market System under the symbol MENT.  The 
Company designs, manufactures, markets and provides services 
related to electronic design automation (EDA) software for the 
integrated circuit and systems design markets.  The address of 
the principal executive offices of the Company is 8005 SW 
Boeckman Road, Wilsonville, Oregon  97070-7777.  The Company's 
telephone number is (503) 685-7000. 

                     AVAILABLE INFORMATION 

          The Company is subject to the informational 
requirements of the Securities Exchange Act of 1934 and in 
accordance therewith files periodic reports and other 
information with the Securities and Exchange Commission (the 
"SEC").  Such reports, proxy statements, and other information 
concerning the Company may be inspected and copies may be 
obtained at prescribed rates at the offices of the SEC, 
Judiciary Plaza, 450 Fifth Street, NW, Washington, D.C. 20549, 
as well as at the following regional offices:  75 Park Place, 
Room 1228, New York, New York 10007; and 219 South Dearborn 
Street, Room 1204, Chicago, Illinois 60604.  The Company has 
filed with the SEC a Registration Statement under the 
Securities Act of 1933, as amended, with respect to the 
securities offered pursuant to this Prospectus.  For further 
information, reference is made to the Registration Statement 
and the exhibits thereto, which are available for inspection at 
no fee at the public reference section of the SEC at its 
principal office at Judiciary Plaza, 450 Fifth Street, NW, 
Washington, D.C. 20549. 

          The Company hereby undertakes to provide without 
charge to each person to whom a copy of this Prospectus is 
delivered, upon written or oral request to Frank S. Delia, Vice 
President, General Counsel and Corporate Secretary, 8005 SW 
Boeckman Road, Wilsonville, Oregon  97070-7777, (503) 685- 
7000, copies of any and all of the information that has been 
incorporated by reference into this Prospectus, other than 
exhibits to such information unless such exhibits are 
specifically incorporated by reference therein.  The 
information relating to the Company contained in this 
Prospectus does not purport to be comprehensive and should be 
read together with the information contained in the documents 
or portions of documents incorporated by reference into this 
Prospectus. 


                               2


                     SELLING SHAREHOLDERS 
 
          The Selling Shareholders are all former shareholders 
of CheckLogic Systems, Inc. ("CheckLogic"), who acquired the 
Shares offered hereby in connection with the merger of Mentor 
Graphics Acquisition, Inc., a wholly-owned subsidiary of the 
Company, with and into CheckLogic.  All of the Selling 
Shareholders, other than Mr. Chiang, are now employees of the 
Company.  The following table sets forth certain information 
provided to the Company by the Selling Shareholders. 
 
                          Shares of Common 
                         Stock beneficially       Common Stock 
Name of Selling             owned as of         offered by this 
  Shareholder            December 31, 1993         Prospectus  
 
Chiou Min Chang               172,300             172,300 
Wu-Tung Cheng                 111,995             111,995 
Josney Leung                   60,305              60,305 
S.H. Chiang                    60,811              60,811 
John A. Waicukauski            20,586(1)           15,202 
_________________________ 
(1)  Includes 5,384 shares subject to a stock option
     exercisable prior to March 1, 1994

                     PLAN OF DISTRIBUTION

          The Shares may be sold from time to time by the 
Selling Shareholders, or by pledgees, donees, transferees or 
other successors in interest.  Such sales may be made in the 
over-the-counter market or otherwise at prices and at terms 
then prevailing or at prices related to the then current market 
price, or in negotiated transactions.  In addition, Wu-Tung 
Cheng may sell up to 2,787 Shares to Susheel Chandra for $.072 
per share pursuant to an option granted by Mr. Cheng to Mr. 
Chandra.  The Shares may be sold by one or more of the 
following methods:  (a) block trades in which the broker or 
dealer so engaged will attempt to sell the Shares as agent but 
may position and resell a portion of the block as principal to 
facilitate the transaction; (b) purchases by a broker or dealer 
as principal, in a market maker capacity or otherwise, and 
resale by such broker or dealer for its account pursuant to 
this Prospectus; and (c) ordinary brokerage transactions and 
transactions in which the broker solicits purchasers.  In 
effecting sales, brokers or dealers engaged by the Selling 
Shareholders may arrange for other brokers or dealers to 
participate.  Brokers or dealers will receive commissions or 
discounts from the Selling Shareholders in amounts to be 
negotiated immediately prior to the sale.  The Selling 
Shareholders, such brokers or dealers, and any other 


                              3

participating brokers or dealers may be deemed to be 
"underwriters" within the meaning of the Securities Act of 1933 
(the "Act") in connection with such sales.  In addition, any 
securities covered by this Prospectus which qualify for sale 
pursuant to Rule 144 may be sold under Rule 144 rather than 
pursuant to this Prospectus. 
 
          Upon the Company being notified by a Selling 
Shareholder that any material arrangement has been entered into 
with a broker or dealer for the sale of Shares through a block 
trade or any other purchase by a broker or dealer as principal, 
other than a purchase as a market maker in an ordinary trading 
transaction, a supplemented prospectus will be filed, if 
required, pursuant to Rule 424 under the Act, disclosing (i) 
the name of such Selling Shareholder and of the participating 
brokers or dealers, (ii) the number of Shares involved, (iii) 
the price at which such Shares will be sold, (iv) the
commission paid or discounts or concessions allowed to such
brokers or dealers, where applicable, (v) that such brokers or
dealers did not conduct any investigation to verify the
information set out or incorporated by reference in this
Prospectus, and (vi) other facts material to the transaction.

                      RECENT DEVELOPMENTS

The following table shows certain information relating to the 
Company's results of operations for the years endedDecember 31, 
1993 and 1992, respectively:

Year ended December 31,                    1993          1992  

Total Revenues                          $ 339,775     $ 350,766

Operating loss                          $ (29,392)    $ (40,732)

Net loss                                $ (32,073)    $ (50,861)

Net loss per common 
and common equivalent share                $ (.69)      $ (1.13)

Weighted average number of  common and 
 common equivalent shares outstanding      46,410        45,142


The reduction in revenues was primarily the result of exiting
the hardware business.   In the past two years, the Company has
been executing a plan to move to a software-only business model.
Revenues have also been negatively impacted by a poor world-wide
economy.  The results of operations were impacted by a plan for
restructuring approved by management in December 1993.  The charge
taken in the fourth quarter totaled $24,800 and is included in


                                  4

the operating loss above.  The costs associated with the plan
consist primarily of direct costs related to the severance
and relocation of employees, facilities' closures and write-offs
of excess equipment and intangible software technology assets
related to product development activities.


        INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE 
 
          The following documents filed with the Commission are
incorporated herein by reference: 

          1.   The Company's Annual Report on Form 10-K for the
               fiscal year ended December 31, 1992, Commission
               File No. 0-13442.

          2.   The Company's Quarterly Reports on Form 10-Q for
               the fiscal quarters ended March 31, 1993, June
               30, 1993, and September 30, 1993.

          3.   The description of the Common Stock contained in 
               the Company's Registration Statement on Form 8-A 
               filed with the Securities and Exchange
               Commission under section 12 of the Securities
               Exchange Act of 1934, as amended.

          All reports and other documents subsequently filed by
the Company pursuant to sections 13(a), 13(c), 14, and 15(d) of
the Securities Exchange Act of 1934, as amended, prior to the
termination of the offering shall be deemed to be incorporated
by reference herein and to be a part hereof from the date of
the filing of such reports and documents.


                            EXPERTS 

          The consolidated financial statements and schedules of 
Mentor Graphics Corporation and subsidiaries as of December 31, 
1992 and 1991 and for each of the years in the three-year period 
ended December 31, 1992, appearing or incorporated by reference in 
the Company's Annual Report on Form 10-K for the year ended 
December 31,1992, have been incorporated by reference herein in 
reliance upon the reports of KPMG Peat Marwick, independent 
certified public accounts, incorporated by reference herein, and 
upon the authority ofsaid firm as experts in accounting and 
auditing.  To the extent that KPMG Peat Marwick audits and reports 
on consolidated financial statements of Mentor Graphics 
Corporation and subsidiaries issued at future dates, and consents 
to the use of their report thereon, such financial statements will 
be incorporated by reference in the registration statement in 
reliance upon their report and said authority.




                                 5

                            PART II

               INFORMATION NOT REQUIRED IN THE PROSPECTUS 
 
Item 14.  Other Expenses of Issuance and Distribution. 
 
          All expenses in connection with the issuance and 
distribution of the securities being registered will be paid by 
the Company.  The following is an itemized statement of these 
expenses: 

          Registration fee........................  $ 1,932

          Legal fees..............................    1,500*

          Accounting Fees.........................    5,000*

          Miscellaneous...........................      100*

               Total..............................  $ 8,532
          ____________________ 
          *Estimated 

Item 15.  Indemnification of Directors and Officers.
 
          Article V of the Company's Bylaws indemnifies directors 
and officers to the fullest extent permitted by the Oregon 
Business Corporation Act (Act).  The effects of Article V are 
summarized as follows:

     (a)  The Article grants a right of indemnification in 
respect of any action, suit, or proceeding (other than an 
action by or in the right of the Company) against expenses 
(including attorneys' fees), judgments, fines, and amounts paid 
in settlement actually and reasonably incurred, if the person 
concerned acted in good faith and in a manner the person 
reasonably believed to be in or not opposed to the best 
interests of the Company, was not adjudged liable on the basis 
of receipt of an improper personal benefit and, with respect to 
any criminal action or proceeding, had no reasonable cause to 
believe the conduct was unlawful.  The termination of an 
action, suit, or proceeding by judgment, order, settlement, 
conviction, or plea of nolo contendere does not, of itself, 
create a presumption that the person did not meet the required 
standards of conduct. 
 
     (b)  The Article grants a right of indemnification in 
respect of any action or suit by or in the right of the Company 
against the expenses (including attorneys' fees) actually and 
reasonably incurred if the person concerned acted in good faith 
and in a manner the person reasonably believed to be in or not 

                                II-1

opposed to the best interests of the Company, except that no 
right of indemnification will be granted if the person is 
adjudged to be liable to the Company. 
 
     (c)  Every person who has been wholly successful on the 
merits of a controversy described in (a) or (b) above is 
entitled to indemnification as a matter of right. 
 
     (d)  The Company is required to promptly indemnify a 
director or officer unless it is determined by a majority of 
disinterested directors or by independent counsel that the 
person's actions did not meet the relevant standard for 
indemnification.  If the disinterested directors or independent 
counsel determine that the indemnification is not required, the 
person seeking indemnification may petition a court for an 
independent determination.  In any court action, the Company 
will have the burden of proving that indemnification would not 
be proper.  Neither the disinterested directors' failure to 
make a determination regarding indemnification for the claim 
nor an actual determination that the person failed to meet the 
applicable standard will be a defense to such action or create 
a presumption that the person is not entitled to 
indemnification. 
 
     (e)  The Company will advance to a director or officer the 
expenses incurred in defending any action, suit or proceeding 
in advance of its final disposition if the director or officer 
affirms in good faith the he or she is entitled to 
indemnification and undertakes to repay any amount advanced if 
it is determined by a court that the person is not entitled to 
indemnification. 

     (f)  The Company may obtain insurance for the protection 
of its directors and officers against any liability asserted 
against them in their official capacities. 


          The rights of indemnification described above are not 
exclusive of any other rights of indemnification to which the 
persons indemnified may be entitled under any bylaw, agreement, 
vote of shareholders or directors, or otherwise. 

          The Company has also entered into Indemnity 
Agreements with all directors and officers.  While the 
Indemnity Agreements in large part incorporate the 
indemnification provisions of the Act as described above, they 
vary from the Act in several respects.  The Indemnity 
Agreements obligate the Company to provide the maximum 
indemnification protection allowed under Oregon law, which is 
intended to provide indemnification broader than that expressly 
authorized by the Act.  The most significant effect of the 


                                 II-2

Indemnity Agreements is to add indemnification for judgments 
and settlements of derivative lawsuits to the fullest extent 
permitted by law as may be limited by public policy 
considerations applied by the courts. 
 
 
           
Item 16.  Exhibits. 
 
        4A.    Restated Articles of Incorporation of the 
               Company, as amended.  Incorporated by reference 
               to Exhibit 4A to the Company's Registration 
               Statement on Form S-3 (Registration No. 33- 
               23024). 
 
        4B.    Bylaws of the Company.  Incorporated by 
               reference to Exhibit 3B to the Company's Annual 
               Report on Form 10-K for the year ended December 
               31, 1989, File No. 0-13442. 
 
          5.   Opinion of Counsel. 
 
         23.   Consent of Accountants.  See Page II-7. 
 
         24.   Powers of Attorney. 
 
Item 17.  Undertakings. 
 
     (a)  The undersigned registrant hereby undertakes: 
 
          (1)  To file, during any period in which offers or 
sales are being made, a post-effective amendment to this 
registration statement: 
 
               (i)  To include any prospectus required by 
section 10(a)(3) of the Securities Act of 1933; 
 
              (ii)  To reflect in the prospectus any facts or 
events arising after the effective date of the registration 
statement (or the most recent post-effective amendment thereof) 
which, individually or in the aggregate, represents a 
fundamental change in the information set forth in the 
registration statement; 
 
             (iii)  To include any material information with 
respect to the plan of distribution not previously disclosed in 
the registration statement or any material change to such 
information in the registration statement; 
 
provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) do 
not apply if the information required to be included in a post- 


                                II-3


effective amendment by those paragraphs is contained in 
periodic reports filed by the registrant pursuant to section 13 
or section 15(d) of the Securities Exchange Act of 1934 that 
are incorporated by reference in the registration statement. 
 
          (2)  That, for the purpose of determining any 
liability under the Securities Act of 1933, each new 
post-effective amendment shall be deemed to be a new 
registration statement relating to the securities offered 
therein, and the offering of such securities at that time shall 
be deemed to be the initial bona fide offering thereof. 
 
          (3)  To remove from registration by means of a post-
effective amendment any of the securities being registered 
which remain unsold at the termination of the offering. 
 
     (b)  The undersigned registrant hereby undertakes that, 
for purposes of determining any liability under the Securities 
Act of 1933, each filing of the registrant's annual report 
pursuant to section 13(a) or section 15(d) of the Securities 
Exchange Act of 1934 that is incorporated by reference in the 
registration statement shall be deemed to be a new registration 
statement relating to the securities offered therein, and the 
offering of such securities at that time shall be deemed to be 
the initial bona fide offering thereof. 
 
     (c)  Insofar as indemnification for liabilities arising 
under the Securities Act of 1933 may be permitted to directors, 
officers and controlling persons of the registrant pursuant to 
the foregoing provisions, or otherwise, the registrant has been 
advised that in the opinion of the Securities and Exchange 
Commission such indemnification is against public policy as 
expressed in the Act and is, therefore, unenforceable.  In the 
event that a claim for indemnification against such liabilities 
(other than the payment by the registrant of expenses incurred 
or paid by a director, officer or controlling person of the 
registrant in the successful defense of any action, suit or 
proceeding) is asserted by such director, officer or 
controlling person in connection with the securities being 
registered, the registrant will, unless in the opinion of its 
counsel the matter has been settled by controlling precedent, 
submit to a court of appropriate jurisdiction the question 
whether such indemnification by it is against public policy as 
expressed in the Act and will be governed by the final 
adjudication of such issue. 


                                II-4


                         SIGNATURES 
 
     Pursuant to the requirements of the Securities Act of 
1933, the registrant certifies that it has reasonable grounds 
to believe that it meets all of the requirements for filing on 
Form S-3 and has duly caused this registration statement to be 
signed on its behalf by the undersigned, thereunto duly 
authorized, in the City of Wilsonville, State of Oregon, on 
February 28, 1994. 
 
                         MENTOR GRAPHICS CORPORATION 
 
 
                         By
                           Frank S. Delia
                           Vice President,
                           Chief Administrative Officer


















                              II-5


 
          Pursuant to the requirements of the Securities Act of 
1933, this registration statement has been signed by the 
following persons in the capacities indicated on this 28th day of 
February, 1994. 
 
          Signature                               Title 
 
(1)  Principal Executive Officer: 
 
    *WALDEN C. RHINES                   President,  
     Walden C. Rhines                   Chief Executive Officer, 
                                        and Director 
                     
(2)  Principal Financial Officer: 
 
     R. DOUGLAS NORBY                   Executive Vice President 
     R. Douglas Norby                   and Chief Financial  
                                        Officer 
 
(3)  Principal Accounting Officer: 
 
     JAMES J. LUTTENBACHER              Corporate Controller and
     James J. Luttenbacher              Chief Accounting Officer
 
(4)  Directors: 
 
    *THOMAS H. BRUGGERE                 Director 
     Thomas H. Bruggere 
 
    *MARSHA B. CONGDON                  Director 
     Marsha B. Congdon 
 
    *DAVID R. HATHAWAY                  Director 
     David R. Hathaway 
 
    *FONTAINE K. RICHARDSON             Director 
     Fontaine K. Richardson 
 
    *JON A. SHIRLEY                     Director 
     Jon A. Shirley 
 
    *DAVID N. STROHM                    Director 
     David N. Strohm 
 
    *By                          
        Frank S. Delia, Attorney-in-Fact 

                               II-6


 
        CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS
 
          We consent to incorporation by reference herein of our 
reports dated February 2, 1993, relating to the consolidated 
balance sheets of Mentor Graphics Corporation and subsidiaries 
as of December 31, 1992 and 1991, and the related consolidated 
statements of operations, stockholders' equity, and cash flows and 
related schedules for each of the years in the three-year period 
ended 
December 31, 1992, which reports appear or are incorporated by 
reference in the December 31, 1992 annual report on Form 10-K of 
Mentor Graphics Corporation, and to references to our Firm under 
the heading "Experts" in the prospectus. 
 
                              KPMG PEAT MARWICK 
 
 
Portland, Oregon, 
February 28, 1994








                                  II-7

         EXHIBIT INDEX 
 
                                                      Sequential 
Exhibit                                                   Page   
Number         Document Description                      Number  
 
  4A.          Restated Articles of Incorporation   
               of the Company, as amended.  
               Incorporated by reference to 
               Exhibit 4A to the Company's 
               Registration Statement on Form S-3 
               (Registration No. 33-23024). 
 
  4B.          Bylaws of the Company.  
               Incorporated by reference to 
               Exhibit 3B to the Company's Annual 
               Report on Form 10-K for the year 
               ended December 31, 1989, File No. 
               0-13442. 
 
  5.           Opinion of Counsel. 
 
  23.          Consent of Independent Certified . 
               Public Accountants
               See Page II-7. 
 
  24.          Powers of Attorney. 
 
 
 
                                                         EXHIBIT 5 
 
 
 
 
 
 
 
                       February 28, 1994   
 
 
Mentor Graphics Corporation 
8005 SW Boeckman Road 
Wilsonville, Oregon  97070-7777 
 
          I have acted as counsel for Mentor Graphics Corporation 
(the "Company") in connection with the filing of a Registration 
Statement on Form S-3 (the "Registration Statement") under the 
Securities Act of 1933, as amended, covering the resale of 
420,613 shares of Common Stock, without par value, (the "Shares") 
of the Company by the holders thereof (the "Selling 
Shareholders").  The Shares were issued to the Selling 
Shareholders pursuant to the Plan and Agreement of Merger between 
the Company, Mentor Graphics Acquisition, Inc. and CheckLogic 
Systems, Inc., dated December 1, 1993.  I have reviewed the 
corporate actions of the Company in connection with this matter 
and have examined those documents, corporate records, and other 
instruments we deemed necessary for the purposes of this opinion. 
 
          Based on the foregoing, it is our opinion that: 
 
     1.   The Company is a corporation duly organized and validly 
existing under the laws of the State of Oregon; 
 
     2.   The Shares have been duly authorized and are legally 
issued, fully paid, and nonassessable. 
 
          I hereby consent to the filing of this opinion as an 
exhibit to the Registration Statement. 
 
                              Very truly yours, 
 
 
 
                              Dean M. Freed
 
                                                        EXHIBIT 24
 
                        POWER OF ATTORNEY 
 
 
          KNOW ALL MEN BY THESE PRESENTS, that the undersigned, 
an officer and/or director of MENTOR GRAPHICS CORPORATION does 
hereby constitute and appoint THOMAS H. BRUGGERE
AND FRANK S. DELIA, his true and lawful attorneys and 
agents to do any and all acts and things and execute in his name 
(whether on behalf of Mentor Graphics Corporation or as an 
officer or director of said Company, or otherwise) any and all 
instruments which said attorney and agent may deem necessary or 
advisable in order to enable Mentor Graphics Corporation to 
comply with the Securities Act of 1933, as amended, and any 
requirements of the Securities and Exchange Commission in respect 
thereof, in connection with the registration under the Securities 
Act of 1933, as amended, of shares of Common Stock of Mentor 
Graphics Corporation issued pursuant to the Plan and Agreement of 
Merger among Mentor Graphics Corporation, Mentor Graphics 
Acquisition, Inc. and CheckLogic Systems, Inc., dated December 1, 
1993, including specifically, but without limitation thereto, 
power and authority to sign his name (whether on behalf of Mentor 
Graphics Corporation or as an officer or director of said 
Company, or otherwise) to a Registration Statement on Form S-3 
and any amendment (including post-effective amendments) or 
application for amendment thereof in respect to such Common Stock 
or any exhibits filed therewith; and to file the same with the 
Securities and Exchange Commission; and the undersigned does 
hereby ratify and confirm all that said attorney and agent shall 
do or cause to be done by virtue hereof. 
 
DATED:  _____________, 19__. 
 
 
                              _________________________________ 
                              Signature 
 
 
                              Walden C. Rhines


                        POWER OF ATTORNEY 
 
 
          KNOW ALL MEN BY THESE PRESENTS, that the undersigned, 
an officer and/or director of MENTOR GRAPHICS CORPORATION does 
hereby constitute and appoint WALDEN C. RHINES AND FRANK S. DELIA, 
his true and lawful attorneys and agents to do any and all 
acts and things and execute in his name (whether on behalf 
of Mentor Graphics Corporation or as an officer or 
director of said Company, or otherwise) any and all 
instruments which said attorney and agent may deem necessary or 
advisable in order to enable Mentor Graphics Corporation to 
comply with the Securities Act of 1933, as amended, and any 
requirements of the Securities and Exchange Commission in respect 
thereof, in connection with the registration under the Securities 
Act of 1933, as amended, of shares of Common Stock of Mentor 
Graphics Corporation issued pursuant to the Plan and Agreement of 
Merger among Mentor Graphics Corporation, Mentor Graphics 
Acquisition, Inc. and CheckLogic Systems, Inc., dated December 1, 
1993, including specifically, but without limitation thereto, 
power and authority to sign his name (whether on behalf of Mentor 
Graphics Corporation or as an officer or director of said 
Company, or otherwise) to a Registration Statement on Form S-3 
and any amendment (including post-effective amendments) or 
application for amendment thereof in respect to such Common Stock 
or any exhibits filed therewith; and to file the same with the 
Securities and Exchange Commission; and the undersigned does 
hereby ratify and confirm all that said attorney and agent shall 
do or cause to be done by virtue hereof. 
 
DATED:  _____________, 19__.  
 
 
                              _________________________________ 
                              Signature
 
 
                              Thomas H. Bruggere

                        POWER OF ATTORNEY 
 
 
          KNOW ALL MEN BY THESE PRESENTS, that the undersigned, 
an officer and/or director of MENTOR GRAPHICS CORPORATION does 
hereby constitute and appoint THOMAS H. BRUGGERE, WALDEN C. 
RHINES AND FRANK S. DELIA, his true and lawful attorneys and 
agents to do any and all acts and things and execute in his name 
(whether on behalf of Mentor Graphics Corporation or as an 
officer or director of said Company, or otherwise) any and all 
instruments which said attorney and agent may deem necessary or 
advisable in order to enable Mentor Graphics Corporation to 
comply with the Securities Act of 1933, as amended, and any 
requirements of the Securities and Exchange Commission in respect 
thereof, in connection with the registration under the Securities 
Act of 1933, as amended, of shares of Common Stock of Mentor 
Graphics Corporation issued pursuant to the Plan and Agreement of 
Merger among Mentor Graphics Corporation, Mentor Graphics 
Acquisition, Inc. and CheckLogic Systems, Inc., dated December 1, 
1993, including specifically, but without limitation thereto, 
power and authority to sign his name (whether on behalf of Mentor 
Graphics Corporation or as an officer or director of said 
Company, or otherwise) to a Registration Statement on Form S-3 
and any amendment (including post-effective amendments) or 
application for amendment thereof in respect to such Common Stock 
or any exhibits filed therewith; and to file the same with the 
Securities and Exchange Commission; and the undersigned does 
hereby ratify and confirm all that said attorney and agent shall 
do or cause to be done by virtue hereof. 
 
DATED:  _____________, 19__. 
 
 
                              _________________________________ 
                              Signature 
 
 
                              Marsha B. Congdon

                        POWER OF ATTORNEY 
 
 
          KNOW ALL MEN BY THESE PRESENTS, that the undersigned, 
an officer and/or director of MENTOR GRAPHICS CORPORATION does 
hereby constitute and appoint THOMAS H. BRUGGERE, WALDEN C. 
RHINES AND FRANK S. DELIA, his true and lawful attorneys and 
agents to do any and all acts and things and execute in his name 
(whether on behalf of Mentor Graphics Corporation or as an 
officer or director of said Company, or otherwise) any and all 
instruments which said attorney and agent may deem necessary or 
advisable in order to enable Mentor Graphics Corporation to 
comply with the Securities Act of 1933, as amended, and any 
requirements of the Securities and Exchange Commission in respect 
thereof, in connection with the registration under the Securities 
Act of 1933, as amended, of shares of Common Stock of Mentor 
Graphics Corporation issued pursuant to the Plan and Agreement of 
Merger among Mentor Graphics Corporation, Mentor Graphics 
Acquisition, Inc. and CheckLogic Systems, Inc., dated December 1, 
1993, including specifically, but without limitation thereto, 
power and authority to sign his name (whether on behalf of Mentor 
Graphics Corporation or as an officer or director of said 
Company, or otherwise) to a Registration Statement on Form S-3 
and any amendment (including post-effective amendments) or 
application for amendment thereof in respect to such Common Stock 
or any exhibits filed therewith; and to file the same with the 
Securities and Exchange Commission; and the undersigned does 
hereby ratify and confirm all that said attorney and agent shall 
do or cause to be done by virtue hereof. 
 
DATED:  _____________, 19__. 
 
 
                              _________________________________ 
                              Signature 
 
 
                              David R. Hathaway


                        POWER OF ATTORNEY 
 
 
          KNOW ALL MEN BY THESE PRESENTS, that the undersigned, 
an officer and/or director of MENTOR GRAPHICS CORPORATION does 
hereby constitute and appoint THOMAS H. BRUGGERE, WALDEN C. 
RHINES AND FRANK S. DELIA, his true and lawful attorneys and 
agents to do any and all acts and things and execute in his name 
(whether on behalf of Mentor Graphics Corporation or as an 
officer or director of said Company, or otherwise) any and all 
instruments which said attorney and agent may deem necessary or 
advisable in order to enable Mentor Graphics Corporation to 
comply with the Securities Act of 1933, as amended, and any 
requirements of the Securities and Exchange Commission in respect 
thereof, in connection with the registration under the Securities 
Act of 1933, as amended, of shares of Common Stock of Mentor 
Graphics Corporation issued pursuant to the Plan and Agreement of 
Merger among Mentor Graphics Corporation, Mentor Graphics 
Acquisition, Inc. and CheckLogic Systems, Inc., dated December 1, 
1993, including specifically, but without limitation thereto, 
power and authority to sign his name (whether on behalf of Mentor 
Graphics Corporation or as an officer or director of said 
Company, or otherwise) to a Registration Statement on Form S-3 
and any amendment (including post-effective amendments) or 
application for amendment thereof in respect to such Common Stock 
or any exhibits filed therewith; and to file the same with the 
Securities and Exchange Commission; and the undersigned does 
hereby ratify and confirm all that said attorney and agent shall 
do or cause to be done by virtue hereof. 
 
DATED:  _____________, 19__. 
 
 
                              _________________________________ 
                              Signature 
 
 
                              Fontaine K. Richardson

                        POWER OF ATTORNEY 
 
 
          KNOW ALL MEN BY THESE PRESENTS, that the undersigned, 
an officer and/or director of MENTOR GRAPHICS CORPORATION does 
hereby constitute and appoint THOMAS H. BRUGGERE, WALDEN C. 
RHINES AND FRANK S. DELIA, his true and lawful attorneys and 
agents to do any and all acts and things and execute in his name 
(whether on behalf of Mentor Graphics Corporation or as an 
officer or director of said Company, or otherwise) any and all 
instruments which said attorney and agent may deem necessary or 
advisable in order to enable Mentor Graphics Corporation to 
comply with the Securities Act of 1933, as amended, and any 
requirements of the Securities and Exchange Commission in respect 
thereof, in connection with the registration under the Securities 
Act of 1933, as amended, of shares of Common Stock of Mentor 
Graphics Corporation issued pursuant to the Plan and Agreement of 
Merger among Mentor Graphics Corporation, Mentor Graphics 
Acquisition, Inc. and CheckLogic Systems, Inc., dated December 1, 
1993, including specifically, but without limitation thereto, 
power and authority to sign his name (whether on behalf of Mentor 
Graphics Corporation or as an officer or director of said 
Company, or otherwise) to a Registration Statement on Form S-3 
and any amendment (including post-effective amendments) or 
application for amendment thereof in respect to such Common Stock 
or any exhibits filed therewith; and to file the same with the 
Securities and Exchange Commission; and the undersigned does 
hereby ratify and confirm all that said attorney and agent shall 
do or cause to be done by virtue hereof. 
 
DATED:  _____________, 19__. 
 
 
                              _________________________________ 
                              Signature 
 
 
                              Jon A. Shirley


                        POWER OF ATTORNEY 
 
 
          KNOW ALL MEN BY THESE PRESENTS, that the undersigned, 
an officer and/or director of MENTOR GRAPHICS CORPORATION does 
hereby constitute and appoint THOMAS H. BRUGGERE, WALDEN C. 
RHINES AND FRANK S. DELIA, his true and lawful attorneys and 
agents to do any and all acts and things and execute in his name 
(whether on behalf of Mentor Graphics Corporation or as an 
officer or director of said Company, or otherwise) any and all 
instruments which said attorney and agent may deem necessary or 
advisable in order to enable Mentor Graphics Corporation to 
comply with the Securities Act of 1933, as amended, and any 
requirements of the Securities and Exchange Commission in respect 
thereof, in connection with the registration under the Securities 
Act of 1933, as amended, of shares of Common Stock of Mentor 
Graphics Corporation issued pursuant to the Plan and Agreement of 
Merger among Mentor Graphics Corporation, Mentor Graphics 
Acquisition, Inc. and CheckLogic Systems, Inc., dated December 1, 
1993, including specifically, but without limitation thereto, 
power and authority to sign his name (whether on behalf of Mentor 
Graphics Corporation or as an officer or director of said 
Company, or otherwise) to a Registration Statement on Form S-3 
and any amendment (including post-effective amendments) or 
application for amendment thereof in respect to such Common Stock 
or any exhibits filed therewith; and to file the same with the 
Securities and Exchange Commission; and the undersigned does 
hereby ratify and confirm all that said attorney and agent shall 
do or cause to be done by virtue hereof. 
 
DATED:  _____________, 19__. 
 
 
                              _________________________________ 
                              Signature 
 
 
                              David N. Strom




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