EXHIBIT 99.1


                         CYMER ANNOUNCES SHAREHOLDER LAWSUIT


SAN DIEGO, Calif., September 4, 1998--Cymer, Inc. (Nasdaq NM:  CYMI), 
announced today that a shareholder has filed a lawsuit against the Company 
and certain of its officers and directors in the United States District Court 
for the Southern District of California.  The lawsuit alleges violations of 
the federal securities laws, and purports to seek damages on behalf of a 
class of shareholders who purchased Cymer, Inc. common stock during the 
period from April 24, 1997 to September 26, 1997.  The Company believes that 
the lawsuit is without merit and intends to defend against it vigorously.

Cymer, Inc. is the world's leading supplier of excimer laser illumination 
sources, the essential light source for deep ultraviolet (DUV) 
photolithography systems.  DUV lithography is a key enabling technology which 
has allowed the semiconductor industry to meet the exact specifications and 
manufacturing requirements for volume production of today's advanced 
semiconductor chips.  Further information on Cymer may be obtained from the 
Company's SEC filings, the Internet at http://www.cymer.com or by contacting 
the Company directly.