JPS5347777A - Production of semiconductor device - Google Patents

Production of semiconductor device

Info

Publication number
JPS5347777A
JPS5347777A JP12192476A JP12192476A JPS5347777A JP S5347777 A JPS5347777 A JP S5347777A JP 12192476 A JP12192476 A JP 12192476A JP 12192476 A JP12192476 A JP 12192476A JP S5347777 A JPS5347777 A JP S5347777A
Authority
JP
Japan
Prior art keywords
production
semiconductor device
circumferential edge
emitter layer
eliminate
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
JP12192476A
Other languages
Japanese (ja)
Inventor
Kaoru Niino
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12192476A priority Critical patent/JPS5347777A/en
Publication of JPS5347777A publication Critical patent/JPS5347777A/en
Pending legal-status Critical Current

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  • Bipolar Transistors (AREA)

Abstract

PURPOSE: To eliminate the crystal defects and abnormally high concentration impurity layer produced at the circumferential edge of an N+ emitter layer and improve the element characteristics such as breakdown voltage, leakage current, noise, etc. of an NPN transistor by removing the circumferential edge of the N+ type emitter layer.
COPYRIGHT: (C)1978,JPO&Japio
JP12192476A 1976-10-13 1976-10-13 Production of semiconductor device Pending JPS5347777A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12192476A JPS5347777A (en) 1976-10-13 1976-10-13 Production of semiconductor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12192476A JPS5347777A (en) 1976-10-13 1976-10-13 Production of semiconductor device

Publications (1)

Publication Number Publication Date
JPS5347777A true JPS5347777A (en) 1978-04-28

Family

ID=14823276

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12192476A Pending JPS5347777A (en) 1976-10-13 1976-10-13 Production of semiconductor device

Country Status (1)

Country Link
JP (1) JPS5347777A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS608910U (en) * 1983-06-30 1985-01-22 富士通株式会社 Optical cable crimping sleeve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS608910U (en) * 1983-06-30 1985-01-22 富士通株式会社 Optical cable crimping sleeve

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