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Who invented the first semiconductor diode what it is called as and from which metal it is made up of?
Wiki User
∙ 13y ago
The first modern semiconductor diode was made with germanium. These diodes were invented in ww2 for RADAR.
But before that semiconductor diodes were made with galena (lead sulfide), copper oxide, and selenium. I have no idea which was "first".
Wiki User
∙ 13y ago
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