JPS5278377A - Semiconductor device - Google Patents

Semiconductor device

Info

Publication number
JPS5278377A
JPS5278377A JP15528175A JP15528175A JPS5278377A JP S5278377 A JPS5278377 A JP S5278377A JP 15528175 A JP15528175 A JP 15528175A JP 15528175 A JP15528175 A JP 15528175A JP S5278377 A JPS5278377 A JP S5278377A
Authority
JP
Japan
Prior art keywords
emitter
semiconductor device
emitter electrode
region
encircle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15528175A
Other languages
Japanese (ja)
Inventor
Hideo Sakauchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP15528175A priority Critical patent/JPS5278377A/en
Publication of JPS5278377A publication Critical patent/JPS5278377A/en
Pending legal-status Critical Current

Links

Landscapes

  • Bipolar Transistors (AREA)

Abstract

PURPOSE: To obtain a power transistor of an increased base internal resistivity and a wider safe operating region by providing a groove so as to encircle emitter electrode in a part of the emitter region between an emitter junction and the emitter electrode.
COPYRIGHT: (C)1977,JPO&Japio
JP15528175A 1975-12-25 1975-12-25 Semiconductor device Pending JPS5278377A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15528175A JPS5278377A (en) 1975-12-25 1975-12-25 Semiconductor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15528175A JPS5278377A (en) 1975-12-25 1975-12-25 Semiconductor device

Publications (1)

Publication Number Publication Date
JPS5278377A true JPS5278377A (en) 1977-07-01

Family

ID=15602460

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15528175A Pending JPS5278377A (en) 1975-12-25 1975-12-25 Semiconductor device

Country Status (1)

Country Link
JP (1) JPS5278377A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5057386A (en) * 1973-09-12 1975-05-19

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5057386A (en) * 1973-09-12 1975-05-19

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