JPS6482648A - Semiconductor device - Google Patents
Semiconductor deviceInfo
- Publication number
- JPS6482648A JPS6482648A JP24111587A JP24111587A JPS6482648A JP S6482648 A JPS6482648 A JP S6482648A JP 24111587 A JP24111587 A JP 24111587A JP 24111587 A JP24111587 A JP 24111587A JP S6482648 A JPS6482648 A JP S6482648A
- Authority
- JP
- Japan
- Prior art keywords
- bipolar
- buried layer
- layer
- depth
- transistor
- 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
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
Abstract
PURPOSE:To enhance the performance of a bipolar transistor without loss of the performance of other hybrid element by decreasing the depth of the transistor to a buried layer as compared with the buried layer of a MOSFET. CONSTITUTION:A semiconductor substrate 1 has an N<+> type buried layer, and a MOSFET is formed commonly in the same depth as a bipolar transistor. After an epitaxial layer 4 is grown on a buried layer 2, N-type impurity is further ion implanted on the layer 2 only in its bipolar section, and a second N<+> type buried layer 14 is formed. Thus, the thickness of the epitaxial layer of the bipolar section is reduced. That is, the depth from the surface to the N<+> type buried layer is reduced. Thus, a bipolar element can be accelerated without deteriorating element characteristics except the bipolar.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24111587A JPS6482648A (en) | 1987-09-25 | 1987-09-25 | Semiconductor device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24111587A JPS6482648A (en) | 1987-09-25 | 1987-09-25 | Semiconductor device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6482648A true JPS6482648A (en) | 1989-03-28 |
Family
ID=17069506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24111587A Pending JPS6482648A (en) | 1987-09-25 | 1987-09-25 | Semiconductor device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6482648A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02128643A (en) * | 1988-11-04 | 1990-05-17 | Fuji Oil Co Ltd | Pastry dough, preparation thereof and pastry |
-
1987
- 1987-09-25 JP JP24111587A patent/JPS6482648A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02128643A (en) * | 1988-11-04 | 1990-05-17 | Fuji Oil Co Ltd | Pastry dough, preparation thereof and pastry |
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