JPS5270773A - Manufacture of semiconductor device - Google Patents

Manufacture of semiconductor device

Info

Publication number
JPS5270773A
JPS5270773A JP50146239A JP14623975A JPS5270773A JP S5270773 A JPS5270773 A JP S5270773A JP 50146239 A JP50146239 A JP 50146239A JP 14623975 A JP14623975 A JP 14623975A JP S5270773 A JPS5270773 A JP S5270773A
Authority
JP
Japan
Prior art keywords
manufacture
semiconductor device
oxidation film
collector contact
film near
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
JP50146239A
Other languages
Japanese (ja)
Inventor
Takeshi Fukuda
Tadashi Kirisako
Yoshinobu Monma
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP50146239A priority Critical patent/JPS5270773A/en
Publication of JPS5270773A publication Critical patent/JPS5270773A/en
Pending legal-status Critical Current

Links

Landscapes

  • Bipolar Transistors (AREA)
  • Bipolar Integrated Circuits (AREA)

Abstract

PURPOSE: To decrease stage difference of oxidation film near collector contact diffusion window.
COPYRIGHT: (C)1977,JPO&Japio
JP50146239A 1975-12-10 1975-12-10 Manufacture of semiconductor device Pending JPS5270773A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50146239A JPS5270773A (en) 1975-12-10 1975-12-10 Manufacture of semiconductor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50146239A JPS5270773A (en) 1975-12-10 1975-12-10 Manufacture of semiconductor device

Publications (1)

Publication Number Publication Date
JPS5270773A true JPS5270773A (en) 1977-06-13

Family

ID=15403235

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50146239A Pending JPS5270773A (en) 1975-12-10 1975-12-10 Manufacture of semiconductor device

Country Status (1)

Country Link
JP (1) JPS5270773A (en)

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