JPS5440576A - Manufacture of semiconductor element - Google Patents

Manufacture of semiconductor element

Info

Publication number
JPS5440576A
JPS5440576A JP10672577A JP10672577A JPS5440576A JP S5440576 A JPS5440576 A JP S5440576A JP 10672577 A JP10672577 A JP 10672577A JP 10672577 A JP10672577 A JP 10672577A JP S5440576 A JPS5440576 A JP S5440576A
Authority
JP
Japan
Prior art keywords
manufacture
semiconductor element
external surface
surface layer
controlling
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
JP10672577A
Other languages
Japanese (ja)
Inventor
Takeshi Suzuki
Junichi Takita
Isao Kojima
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 JP10672577A priority Critical patent/JPS5440576A/en
Publication of JPS5440576A publication Critical patent/JPS5440576A/en
Pending legal-status Critical Current

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  • Thyristors (AREA)

Abstract

PURPOSE: To prevent an increase in leak current or deterioration in dielectric strength by diffusing Au from the external surface layer of a semiconductor device in a PNPN four-layer structure and by partially controlling the impurity density of the external surface layer at the time of controlling the life time of a N base layer.
COPYRIGHT: (C)1979,JPO&Japio
JP10672577A 1977-09-07 1977-09-07 Manufacture of semiconductor element Pending JPS5440576A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10672577A JPS5440576A (en) 1977-09-07 1977-09-07 Manufacture of semiconductor element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10672577A JPS5440576A (en) 1977-09-07 1977-09-07 Manufacture of semiconductor element

Publications (1)

Publication Number Publication Date
JPS5440576A true JPS5440576A (en) 1979-03-30

Family

ID=14440908

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10672577A Pending JPS5440576A (en) 1977-09-07 1977-09-07 Manufacture of semiconductor element

Country Status (1)

Country Link
JP (1) JPS5440576A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58131736A (en) * 1982-02-01 1983-08-05 Hitachi Ltd Semiconductor device
JPS63260175A (en) * 1987-04-17 1988-10-27 Sanyo Electric Co Ltd Manufacture of semiconductor device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58131736A (en) * 1982-02-01 1983-08-05 Hitachi Ltd Semiconductor device
JPS63260175A (en) * 1987-04-17 1988-10-27 Sanyo Electric Co Ltd Manufacture of semiconductor device

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