JPS53117988A - Production of bipolar ic - Google Patents

Production of bipolar ic

Info

Publication number
JPS53117988A
JPS53117988A JP3217977A JP3217977A JPS53117988A JP S53117988 A JPS53117988 A JP S53117988A JP 3217977 A JP3217977 A JP 3217977A JP 3217977 A JP3217977 A JP 3217977A JP S53117988 A JPS53117988 A JP S53117988A
Authority
JP
Japan
Prior art keywords
bipolar
production
mask
make
simple process
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
JP3217977A
Other languages
Japanese (ja)
Inventor
Mitsuo Usami
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 JP3217977A priority Critical patent/JPS53117988A/en
Publication of JPS53117988A publication Critical patent/JPS53117988A/en
Pending legal-status Critical Current

Links

Landscapes

  • Bipolar Transistors (AREA)
  • Element Separation (AREA)

Abstract

PURPOSE: To make a bipolar IC of high performance and high reliability with a simple process by providing channel stoppers without using any mask.
COPYRIGHT: (C)1978,JPO&Japio
JP3217977A 1977-03-25 1977-03-25 Production of bipolar ic Pending JPS53117988A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3217977A JPS53117988A (en) 1977-03-25 1977-03-25 Production of bipolar ic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3217977A JPS53117988A (en) 1977-03-25 1977-03-25 Production of bipolar ic

Publications (1)

Publication Number Publication Date
JPS53117988A true JPS53117988A (en) 1978-10-14

Family

ID=12351697

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3217977A Pending JPS53117988A (en) 1977-03-25 1977-03-25 Production of bipolar ic

Country Status (1)

Country Link
JP (1) JPS53117988A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5640256A (en) * 1979-09-11 1981-04-16 Mitsubishi Electric Corp Manufacture of semiconductor device
JPS57184230A (en) * 1981-02-17 1982-11-12 Fairchild Camera Instr Co Method of producing semiconductor structure reducing lateral distance between buried regions
JPS57197832A (en) * 1981-05-29 1982-12-04 Nec Corp Manufacture of semiconductor device
JPS58141537A (en) * 1982-02-17 1983-08-22 Nec Corp Semiconductor device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5640256A (en) * 1979-09-11 1981-04-16 Mitsubishi Electric Corp Manufacture of semiconductor device
JPS57184230A (en) * 1981-02-17 1982-11-12 Fairchild Camera Instr Co Method of producing semiconductor structure reducing lateral distance between buried regions
JPS57197832A (en) * 1981-05-29 1982-12-04 Nec Corp Manufacture of semiconductor device
JPS58141537A (en) * 1982-02-17 1983-08-22 Nec Corp Semiconductor device

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