JPS5348481A - Production of semiconductor device - Google Patents
Production of semiconductor deviceInfo
- Publication number
- JPS5348481A JPS5348481A JP12279876A JP12279876A JPS5348481A JP S5348481 A JPS5348481 A JP S5348481A JP 12279876 A JP12279876 A JP 12279876A JP 12279876 A JP12279876 A JP 12279876A JP S5348481 A JPS5348481 A JP S5348481A
- Authority
- JP
- Japan
- Prior art keywords
- production
- semiconductor device
- impurity
- contact part
- base region
- 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
- Bipolar Transistors (AREA)
Abstract
PURPOSE: To reduce the number of times of heat treatment and prevent the production of P impurity spots by opening a hole for base contact part formation on the surface oxide film after a base region has been formed, covering the surface with a PSG film, exposing part of the base region and performing emitter diffusion and at the same time diffusing the P impurity from the PSG film thus forming a base contact part.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12279876A JPS5348481A (en) | 1976-10-15 | 1976-10-15 | Production of semiconductor device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12279876A JPS5348481A (en) | 1976-10-15 | 1976-10-15 | Production of semiconductor device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5348481A true JPS5348481A (en) | 1978-05-01 |
Family
ID=14844885
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12279876A Pending JPS5348481A (en) | 1976-10-15 | 1976-10-15 | Production of semiconductor device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5348481A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4618388A (en) * | 1982-09-02 | 1986-10-21 | Central Illinois Manufacturing Co. | Water removing filter media and method of making the same |
-
1976
- 1976-10-15 JP JP12279876A patent/JPS5348481A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4618388A (en) * | 1982-09-02 | 1986-10-21 | Central Illinois Manufacturing Co. | Water removing filter media and method of making the same |
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