William Shockley
William Shockley
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What happened with William Shockley on 7 April, 1949

7 April, 1949

Shockley obtained a first proof of principle for his 'sandwich' transistor, a new type of transistor with a layer structure. This significantly more robust structure was the basis for most transistors into the 1960s, and evolved into the bipolar junction transistor.
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