Ultratech's David A. Markle receives David Richardson medal; Optical Society of America award recognizes significant contributions to applied optics.

SAN JOSE, Calif.--(BUSINESS WIRE)--Dec. 7, 1994--Ultratech Stepper Inc. (NASDAQ:UTEK), a leading supplier of photolithographic steppers used to manufacture semiconductors and thin film magnetic recording heads, announced that its Vice President, Advanced Technology, David A. Markle, was chosen to receive the 1994 David Richardson Medal from the Optical Society of America (OSA).

Established in 1966, the Richardson Medal is given annually to acknowledge distinguished contributions to applied optics. Markle was chosen as a 1994 recipient in recognition of his leadership in developing several generations of 1X projection systems for photolithography -- including the Half Field Dyson system, which is capable of sub 0.25 um resolution over a large field.

The award was presented on Oct. 4, in Dallas at a special ceremony held during the OSA's annual meeting.

Upon learning of Markle's selection, Chairman, President and CEO Arthur Zafiropoulo commented, "We are pleased that the Optical Society of America has chosen to recognize Dave Markle's contributions to the lithography industry. Ultratech is now recognized as the pioneer and world leader in the area of mix-and-match lithography, and Dave's technological contributions have played a vital role in advancing this endeavor."

Markle has over 25 years of semiconductor industry experience. Prior to joining Ultratech, Markle spent 19 years with Perkin-Elmer Corp., where he led the invention and development of the Micralign series of scanning projection aligners, and the Micrascan step-and-scan, a deep-ultraviolet lithography system.

In addition to holding over a dozen patents, Markle developed the solid Fabry Perot filters used in the hydrogen alpha telescopes utilized by the Skylab project, as well as the Fraunhofer Line Discriminator used for remote detection of weakly fluorescent materials.

The award is named for David Richardson, who received the first award in 1966 for his contributions to the ruling and replicating of gratings. In establishing the Richardson Medal, OSA directors sought to recognize individuals who have made significant contributions to technical optics, including those who do not necessarily possess an extensive publication record or a traditional academic reputation.

Notable among previous winners are optical designer Abe Offner, and John Bruning, president of Tropel Corp. (Fairport, N.Y.).

About Ultratech: Ultratech Stepper Inc. designs, manufactures and markets photolithography steppers used worldwide in the fabrication of semiconductor and thin film magnetic head products. The company's focus is on producing high-technology products that substantially reduce the cost of ownership for manufactures in the electronics industry. Founded in 1979, Ultratech is listed on the NASDAQ stock market under the market symbol UTEK. -0-

Note to Editors: Half Field Dyson is a trademark of Ultratech Stepper.

CONTACT: Ultratech Stepper Inc., San Jose

             Scott Zafiropoulo, 408/577-3116 or fax [phone]
             MCA Inc.
             Lisa Gillette, 415/968-8900 or fax [phone]