JPS53123658A - Production of semiconductor unit - Google Patents
Production of semiconductor unitInfo
- 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
Links
Landscapes
- 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
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) |
-
1977
- 1977-04-04 JP JP3885977A patent/JPS53123658A/en active Pending
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