JPS5326686A - Protection circuit device for semi conductor - Google Patents

Protection circuit device for semi conductor

Info

Publication number
JPS5326686A
JPS5326686A JP10063476A JP10063476A JPS5326686A JP S5326686 A JPS5326686 A JP S5326686A JP 10063476 A JP10063476 A JP 10063476A JP 10063476 A JP10063476 A JP 10063476A JP S5326686 A JPS5326686 A JP S5326686A
Authority
JP
Japan
Prior art keywords
protection circuit
circuit device
semi conductor
layer
conductor
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.)
Granted
Application number
JP10063476A
Other languages
Japanese (ja)
Other versions
JPS5722219B2 (en
Inventor
Nobuhiko Ono
Katsumi Ogiue
Masato Iwabuchi
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 JP10063476A priority Critical patent/JPS5326686A/en
Publication of JPS5326686A publication Critical patent/JPS5326686A/en
Publication of JPS5722219B2 publication Critical patent/JPS5722219B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To ensure an effective protection to both (+) and (-) polarities by providing an n+ layer under a regulated voltage on P-type Si substrate and by connecting the layer to each power line as well as to the input line of the protected element.
COPYRIGHT: (C)1978,JPO&Japio
JP10063476A 1976-08-25 1976-08-25 Protection circuit device for semi conductor Granted JPS5326686A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10063476A JPS5326686A (en) 1976-08-25 1976-08-25 Protection circuit device for semi conductor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10063476A JPS5326686A (en) 1976-08-25 1976-08-25 Protection circuit device for semi conductor

Publications (2)

Publication Number Publication Date
JPS5326686A true JPS5326686A (en) 1978-03-11
JPS5722219B2 JPS5722219B2 (en) 1982-05-12

Family

ID=14279255

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10063476A Granted JPS5326686A (en) 1976-08-25 1976-08-25 Protection circuit device for semi conductor

Country Status (1)

Country Link
JP (1) JPS5326686A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5877254A (en) * 1981-11-02 1983-05-10 Oki Electric Ind Co Ltd Integrated logic circuit device
JPS59191365A (en) * 1983-04-15 1984-10-30 Hitachi Ltd Semiconductor device
JPS612978A (en) * 1984-06-13 1986-01-08 Konishiroku Photo Ind Co Ltd Multi-directional valve

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5877254A (en) * 1981-11-02 1983-05-10 Oki Electric Ind Co Ltd Integrated logic circuit device
JPH0121632B2 (en) * 1981-11-02 1989-04-21 Oki Electric Ind Co Ltd
JPS59191365A (en) * 1983-04-15 1984-10-30 Hitachi Ltd Semiconductor device
JPH0475660B2 (en) * 1983-04-15 1992-12-01 Hitachi Seisakusho Kk
JPS612978A (en) * 1984-06-13 1986-01-08 Konishiroku Photo Ind Co Ltd Multi-directional valve
JPH0541869B2 (en) * 1984-06-13 1993-06-24 Konishiroku Photo Ind

Also Published As

Publication number Publication date
JPS5722219B2 (en) 1982-05-12

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