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Test21
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Test21 Inc. is the world's leading designer and manufacturer of high-end printed circuit boards, with a main focus on all major aspects of the semiconductor testing industry.

Test21 serves semiconductor design companies, silicon wafer foundries, test houses, probe card manufacturers, and ATE manufacturers worldwide; bringing design, engineering, production, and other capabilities together, offering customers a single interface solution to all semiconductor test applications.

The company is based in California; and operates in Taiwan, Japan, UK, China, and Europe.
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©2010 Test21, Inc.