Press Release

WIN Semiconductors and Presto Announce Strategic Collaboration for GaAs Testing Services

Presto’s Hubs in Silicon Valley and Europe to support characterization and production testing of GaAs MMIC and RF Devices

TAIPEI, Taiwan and SAN JOSE, Calif., — WIN Semiconductors Corp., the world’s largest pure-play Gallium Arsenide (GaAs) foundry, and Presto Engineering, a leading semiconductor product engineering company, today announced a strategic collaboration to deliver characterization and testing services for companies developing products utilizing GaAs technology from WIN. The agreement covers wafer-level and packaged part development activities, including design characterization and production testing. Customers of WIN Semiconductors can now gain access to these highly specialized GaAs testing services from the Presto Engineering Hubs in Silicon Valley and in Grenoble, France.

”As WIN continues to see strong growth in its major market sectors it is committed to providing cost-effective solutions that meet customers’ needs. The collaboration between WIN and Presto Engineering is that type of innovative approach that provides our customers with a one-stop solution for fab, characterization and testing services” stated Brian Lee, WIN’s VP of Sales and Marketing.

“We are seeing a significant increase in our RF services business, driven by the overwhelming demand on the semiconductor industry to deliver innovative devices to meet the needs for increased communication bandwidth and cost-effectiveness. Our staff is looking forward to working closely with the WIN team, as time-to-production will be critical for our mutual customer’s success,” stated Dr. Michel Villemain, Presto Engineering founder and CEO.

The Presto Hubs offer customers the ability to use high frequency test and measurement equipment (e.g. network analyzer, pattern generator, BERT), as well as leading edge RF-ATE; Roos Instruments Cassini platform, supporting DC to 100GHz source and measure, and the Verigy 93K Port Scale RF test system. Presto technical staff can also assist with test program development, probe card design utilizing GGB and Cascade Microtech high frequency probe systems, load board development and automatic handler support.

Additional Hub services offered by Presto include stress testing required for engineering and product qualification, covering reliability testing for temperature, environmental and electrical stresses, as well as both physical and electrical fault isolation and failure analysis.

Meet WIN and Presto Engineering at Upcoming Industry Events

Presto Engineering and WIN Semiconductors will be exhibiting at upcoming industry conferences, inviting attendees to obtain further technical information about GaAs foundry and testing services:

Semicon Taiwan
September 8-10, 2010, Taipei, Taiwan
WIN booth #2733, Presto booth #1419
GSA Suppliers Expo
September 16, 2010, Santa Clara, CA
Presto booth #219
European Microwave Week
September 28-30, 2010, Paris, France
WIN booth #97, Presto booth #9

About Presto Engineering

Presto Engineering, an ISO 9001 company, delivers “ Design Success Analysis”, integrated test and product engineering solutions to IDM and fabless companies. Operating from hubs in Silicon Valley and Europe, our business is focused on helping to improve the speed and predictability of new product releases.  Presto combines unique technical expertise, extensive industry experience and leading edge ATE for SoC and RF, along with reliability, FIB, FA/FI services to offer a complete product engineering solution designed to complement our customer’s internal resources. More information can be found at

About WIN Semiconductors Corp:

WIN Semiconductors Corp., founded in 1999, was the first pure-play 6-inch GaAs foundry in the world, has established an advanced GaAs wafer fab in recognition of the growing demand for low cost manufacturing of high speed and high quality GaAs MMIC’s (monolithic microwave ICs) and RFIC’s (radio frequency ICs). WIN provides dedicated foundry services to design houses as well as IDM partners. WIN supplies HBT and pHEMT MMIC fabrication services to worldwide IC manufacturers, using state-of-the-art GaAs process technology. For more details, go to