JPS51112277A - Semiconductor device and its production method - Google Patents

Semiconductor device and its production method

Info

Publication number
JPS51112277A
JPS51112277A JP3670275A JP3670275A JPS51112277A JP S51112277 A JPS51112277 A JP S51112277A JP 3670275 A JP3670275 A JP 3670275A JP 3670275 A JP3670275 A JP 3670275A JP S51112277 A JPS51112277 A JP S51112277A
Authority
JP
Japan
Prior art keywords
semiconductor device
production method
difficulty
electrode
flat
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
JP3670275A
Other languages
Japanese (ja)
Inventor
Masataka Ota
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 JP3670275A priority Critical patent/JPS51112277A/en
Publication of JPS51112277A publication Critical patent/JPS51112277A/en
Pending legal-status Critical Current

Links

Landscapes

  • Local Oxidation Of Silicon (AREA)
  • Bipolar Transistors (AREA)
  • Element Separation (AREA)

Abstract

PURPOSE: A production method of a semiconductor device whose surface is flat and is of a field plate construction where difficulty of selective etching in the photographic etching method or a stage difference in the electrode and wiring layer is not generated.
COPYRIGHT: (C)1976,JPO&Japio
JP3670275A 1975-03-28 1975-03-28 Semiconductor device and its production method Pending JPS51112277A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3670275A JPS51112277A (en) 1975-03-28 1975-03-28 Semiconductor device and its production method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3670275A JPS51112277A (en) 1975-03-28 1975-03-28 Semiconductor device and its production method

Publications (1)

Publication Number Publication Date
JPS51112277A true JPS51112277A (en) 1976-10-04

Family

ID=12477090

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3670275A Pending JPS51112277A (en) 1975-03-28 1975-03-28 Semiconductor device and its production method

Country Status (1)

Country Link
JP (1) JPS51112277A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01119038A (en) * 1987-10-31 1989-05-11 Nec Corp Semiconductor device
JP2010069390A (en) * 2008-09-17 2010-04-02 Ishigaki Co Ltd Method for operating and controlling belt type concentrator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01119038A (en) * 1987-10-31 1989-05-11 Nec Corp Semiconductor device
JP2010069390A (en) * 2008-09-17 2010-04-02 Ishigaki Co Ltd Method for operating and controlling belt type concentrator

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