发明名称 |
Reverse switching rectifier and method for making same |
摘要 |
A reverse switching rectifier is described in which a PNPN semiconductor structure has a specially adapted N-type end zone or cathode-emitter zone. The N-type end zone penetrates to two different levels in the semiconductor body. A deep central portion and a shallow peripheral portion of the N-type end zone are produced by etching a cavity in the center of the body followed by diffusion of N-type dopant material. The exposed surfaces of the N-type end zone are then metallized to provide electrical and thermal contact thereto.
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申请公布号 |
US4080620(A) |
申请公布日期 |
1978.03.21 |
申请号 |
US19750632433 |
申请日期 |
1975.11.17 |
申请人 |
WESTINGHOUSE ELECTRIC CORPORATION |
发明人 |
CHU, CHANG K. |
分类号 |
H01L29/74;H01L29/08;H01L29/417;H01L29/861;H01L29/87;(IPC1-7):H01L29/74 |
主分类号 |
H01L29/74 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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