发明名称 Bipolar transistors
摘要 A bipolar transistor is provided whose emitter surrounds the base. The transistor has in some embodiments a high ratio of the emitter area to the base area and low collector and emitter resistances. Further, a transistor is provided in which a collector contact region is surrounded by the base. Consequently, a low collector resistance is obtained in some embodiments.
申请公布号 US5675175(A) 申请公布日期 1997.10.07
申请号 US19950383139 申请日期 1995.02.02
申请人 IRANMANESH, ALI AKBAR 发明人 IRANMANESH, ALI AKBAR
分类号 H01L21/331;H01L29/06;H01L29/73;H01L29/732;(IPC1-7):H01L27/082 主分类号 H01L21/331
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