CREDENCE DELIVERS DUO VLSI TEST

 Solution to Mitsui High-tec  Business Editors/Computer Writers  FREMONT, Calif.--(BUSINESS WIRE)--Sept. 23, 1997--Credence Systems Corporation (Nasdaq:CMOS), a leading manufacturer of automatic test equipment (ATE) for the semiconductor industry, today announced the recent delivery of a Duo Analog Very Large Scale Integration (AVLSI) Test System to Mitsui High-tec, one of the world's premiere high-quality lead-frame suppliers based in Kitakyushu, Japan.  The Duo provides cost-effective, single-insertion test of Analog VLSI devices which operate in the subthreshold region of the circuits.  Fully compliant, integrated test head resources enable the Duo to accurately test the subthreshold transistor properties, while providing high thermal stability for vector, scalar and noise measurements.  Credence specially configured its Duo system to optimize  productivity for Mitsui's unique test challenges.  With a digital pin count of 256 pins, expandable to 512 pins, the Duo's audio subsystem achieves 20 bit accuracy while the video subsystem ensures impedance-matched, fully-differential 16 GHz sampling.  "Numerous semiconductor manufacturers use Credence's Duo systems while developing their advanced devices.  They were anxious for us to acquire the Duo so we, in turn, can follow the same methodologies for volume test, assembly and packaging of their chips," said Toshiya Matsubara, senior managing director, Mitsui High-tec.  "Now with our Duo in place, we are ready to perform subcontract test on our customers' mixed-signal devices at our Kitakyushu facility."  The Duo is a highly integrated compact test system that reduces power consumption, floor space and overall cost of ownership expenses.  A true multimedia tester, the Duo's noise floor achieves 10 nV/root Hz through the audio and video spectrums.  Allowing single-insertion testing of even the most complex of mixed-signal devices, Credence's Duo test solution enables manufacturers and assemblers to achieve high-volume, reliable testing in a cost effective process.  "By delivering our Duo system, we are pleased to begin a working partnership with Mitsui High-tec," commented David Ranhoff, Credence's executive vice president.  "Credence is focused on providing our customers with a strategic advantage.  ATE needs to be flexible, reliable, robust and affordable.  The Duo embodies what ATE was meant to be."  Mitsui High-tec, Inc. is a leader in the international high-quality lead-frame industry.  Mitsui also performs subcontract assembly services for plastic packages at competitive prices with assembly, packaging and test all completed at one location.  Mitsui Corporate Headquarters are located in Kitakyushu, Japan, with Sales  Offices located in Santa Clara, California and Tempe, Arizona.  Credence Systems Corporation is a leading manufacturer of automatic test equipment (ATE) that serves a broad spectrum of the worldwide semiconductor industry's testing needs.  Credence offers a wide range of products with test capabilities for digital, mixed-signal, and memory semiconductors.  The Company utilizes its  proprietary CMOS technologies to redefine test with products that are designed to solve its customers' business problems through technology while meeting the increasingly demanding performance requirements of today's ATE market.  The Company is headquartered in Fremont, California, with manufacturing in Beaverton, Ore.  Credence is listed on the Nasdaq National Market under the symbol CMOS and can be found on the World Wide Web at http://www.credence.com  Note to Editors: Credence, Credence Systems and Duo are trademarks of Credence Systems Corporation.  Other trademarks that may be mentioned in this release are the intellectual property of their respective owners.    
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