JPS53123658A - Production of semiconductor unit - Google Patents

Production of semiconductor unit

Info

Publication number
JPS53123658A
JPS53123658A JP3885977A JP3885977A JPS53123658A JP S53123658 A JPS53123658 A JP S53123658A JP 3885977 A JP3885977 A JP 3885977A JP 3885977 A JP3885977 A JP 3885977A JP S53123658 A JPS53123658 A JP S53123658A
Authority
JP
Japan
Prior art keywords
production
semiconductor unit
high impurity
areas
density areas
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
JP3885977A
Other languages
Japanese (ja)
Inventor
Satoru Shoji
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP3885977A priority Critical patent/JPS53123658A/en
Publication of JPS53123658A publication Critical patent/JPS53123658A/en
Pending legal-status Critical Current

Links

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  • Weting (AREA)

Abstract

PURPOSE: To avoid the deterioration of junction characteristic at a collector leadingout diffusion layer formation time by forming high impurity-density areas selectively on the semiconductor surface and covering them with a reaction-proof mask and removing the other high impurity-density areas after converting them to porous areas.
COPYRIGHT: (C)1978,JPO&Japio
JP3885977A 1977-04-04 1977-04-04 Production of semiconductor unit Pending JPS53123658A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3885977A JPS53123658A (en) 1977-04-04 1977-04-04 Production of semiconductor unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3885977A JPS53123658A (en) 1977-04-04 1977-04-04 Production of semiconductor unit

Publications (1)

Publication Number Publication Date
JPS53123658A true JPS53123658A (en) 1978-10-28

Family

ID=12536917

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3885977A Pending JPS53123658A (en) 1977-04-04 1977-04-04 Production of semiconductor unit

Country Status (1)

Country Link
JP (1) JPS53123658A (en)

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