JPS5216186A - Producing method of semiconductor device - Google Patents

Producing method of semiconductor device

Info

Publication number
JPS5216186A
JPS5216186A JP50091880A JP9188075A JPS5216186A JP S5216186 A JPS5216186 A JP S5216186A JP 50091880 A JP50091880 A JP 50091880A JP 9188075 A JP9188075 A JP 9188075A JP S5216186 A JPS5216186 A JP S5216186A
Authority
JP
Japan
Prior art keywords
semiconductor device
producing method
transistor
capacity
superior
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
JP50091880A
Other languages
Japanese (ja)
Inventor
Naonobu Sato
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 JP50091880A priority Critical patent/JPS5216186A/en
Publication of JPS5216186A publication Critical patent/JPS5216186A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To form a transistor which has a big power capacity and is superior in a secondary break-down withstand capacity, and a high cut-off frequency transistor by a simple processes.
COPYRIGHT: (C)1977,JPO&Japio
JP50091880A 1975-07-30 1975-07-30 Producing method of semiconductor device Pending JPS5216186A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50091880A JPS5216186A (en) 1975-07-30 1975-07-30 Producing method of semiconductor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50091880A JPS5216186A (en) 1975-07-30 1975-07-30 Producing method of semiconductor device

Publications (1)

Publication Number Publication Date
JPS5216186A true JPS5216186A (en) 1977-02-07

Family

ID=14038863

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50091880A Pending JPS5216186A (en) 1975-07-30 1975-07-30 Producing method of semiconductor device

Country Status (1)

Country Link
JP (1) JPS5216186A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5555559A (en) * 1978-10-19 1980-04-23 Toshiba Corp Method of fabricating semiconductor device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5555559A (en) * 1978-10-19 1980-04-23 Toshiba Corp Method of fabricating semiconductor device
JPS6157712B2 (en) * 1978-10-19 1986-12-08 Tokyo Shibaura Electric Co

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