Heinrich Johann Welker (9 September 1912 – 25 December 1981) was a German theoretical and applied physicist who invented the "transistron", a transistor made at Westinghouse independently of the first successful transistor made at Bell Laboratories. He did fundamental work in III-V compound semiconductors, and paved the way for microwave semiconductor elements and laser diodes.
Heinrich Johann Welker (9 September 1912 – 25 December 1981) was a German theoretical and applied physicist who invented the "transistron", a transistor made at Westinghouse independently of the first successful transistor made at Bell Laboratories. He did fundamental work in III-V compound semiconductors, and paved the way for microwave semiconductor elements and laser diodes.
Source: Wikipedia "Heinrich Welker" · CC BY-SA 4.0
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