Exhibit (a)(5)(L)


FOR IMMEDIATE RELEASE

         MENTOR GRAPHICS EXTENDS TENDER OFFER FOR IKOS SYSTEMS, INC.

WILSONVILLE, OR - February 22, 2002 - Mentor Graphics Corporation (Nasdaq: MENT)
today announced that it has extended its $11.00 per share cash tender offer for
all outstanding shares of the common stock of IKOS Systems, Inc. (Nasdaq: IKOS)
to 12:00 Midnight, New York City time, on Friday, March 1, 2002, unless further
extended. The tender offer was previously scheduled to expire at 12:00 Midnight,
New York City time, on Friday, February 22, 2002.

As of the close of business on February 21, 2002, 454,703 shares of IKOS
common stock had been validly tendered into the offer, which, together with the
841,600 shares already beneficially owned by Mentor, represents approximately
13.7% of IKOS' outstanding common stock (based upon 9,459,132 shares outstanding
as of January 10, 2002). The shares tendered represent approximately 4.8% of
the outstanding common stock.

Mentor Graphics also announced today its filing of a preliminary proxy statement
with the Securities and Exchange Commission today in connection with the special
meeting of IKOS stockholders that IKOS has set for June 12, 2002 at Mentor
Graphics' request. At the special meeting, IKOS stockholders will be asked to
vote on the removal of the existing IKOS directors and their replacement with
Mentor Graphics' nominees.

As announced on December 7, 2001, Mentor Graphics offered to acquire IKOS
Systems for $11.00 in cash per share of IKOS common stock. The offer represents
a premium of 37% over the Nasdaq closing price of IKOS stock on December 6, 2001
and a premium of 49.5% over IKOS' closing price on June 29, 2001, the last
trading day before IKOS announced its proposed acquisition by Synopsys, Inc.
(Nasdaq: SNPS). Furthermore, the offer represents a premium of 87% over the
average closing price of IKOS stock for the thirty trading days ended December
6, 2001. In addition, Mentor's offer is subject to fewer conditions than the
Synopsys proposal and can be consummated months earlier than the Synopsys
proposal. Mentor's offer is not subject to any financing condition.



IMPORTANT INFORMATION

Investors and security holders are urged to read any proxy statement regarding
the proposed business combination described herein, a preliminary copy of which
was filed on February 22, 2002 with the Securities and Exchange Commission.
Investors and security holders may obtain a free copy of the tender offer
statement, each such proxy statement (when it is available) and other documents
filed by Mentor Graphics with the Commission at the Commission's web site at
www.sec.gov. The tender offer statement, each such proxy statement (when it is
available) and these other documents may also be obtained for free from Mentor
Graphics by directing a request to Ryerson Schwark, Mentor Graphics' Director of
Public and Investor Relations, at (503) 685-1660.

Detailed information regarding the names, affiliations and interests of
individuals who may be deemed participants in the solicitation of proxies of
IKOS stockholders of IKOS by Mentor Graphics is available in a Schedule 14A
filed by Mentor Graphics with the Commission pursuant to Rule 14a-12 on February
5, 2002. Investors and security holders may obtain a free copy of the Schedule
14A at the Commission's web site at www.sec.gov.

ABOUT MENTOR GRAPHICS

Mentor Graphics Corporation (Nasdaq: MENT) is a world leader in electronic
hardware and software design solutions, providing products, consulting services
and award-winning support for the world's most successful electronics and
semiconductor companies. Established in 1981, Mentor Graphics reported revenues
over the last 12 months of more than $600 million and employs approximately
3,000 people worldwide. Corporate headquarters are located at 8005 S.W. Boeckman
Road, Wilsonville, Oregon 97070-7777; Silicon Valley headquarters are located at
1001 Ridder Park Drive, San Jose, California 95131-2314. World Wide Web site:
www.mentor.com.

Mentor Graphics is a registered trademark of Mentor Graphics Corporation. All
other company or product names are the registered trademarks or trademarks of
their respective owners.


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CONTACTS

Mentor Graphics Corporation         The Abernathy MacGregor Group
Ryerson Schwark                     Chuck Burgess
Tel:  503-685-1660                  Jason Thompson
                                    Tel:  212-371-5999