Fishing – trapping – and vermin destroying
Patent
1989-03-13
1989-09-26
Hearn, Brian E.
Fishing, trapping, and vermin destroying
437203, 437249, H01L 2120
Patent
active
048700282
ABSTRACT:
A double gate static induction thyristor comprises an n.sup.- semiconductor substrate having first and second principal surfaces opposite to each other. An n.sup.- epitaxial semiconductor layer is formed on the first principal surface of the substrate, and a p.sup.- epitaxial semiconductor layer is formed on the second principal surface of the substrate. A cathode electrode is deposited on the surface of the n.sup.- epitaxial layer, and an anode electrode is deposited on the surface of the p.sup.- epitaxial layer. In addition, a first gate electrode is formed on the first principal surface of the substrate, and a second gate electrode is formed on the second principal surface of the substrate.
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Kondoh Hisao
Nishizawa Jun-ichi
Hearn Brian E.
Mitsubishi Electric Corporation
Thomas Tom
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