JPS6425564A - Semiconductor device - Google Patents
Semiconductor deviceInfo
- Publication number
- JPS6425564A JPS6425564A JP62181177A JP18117787A JPS6425564A JP S6425564 A JPS6425564 A JP S6425564A JP 62181177 A JP62181177 A JP 62181177A JP 18117787 A JP18117787 A JP 18117787A JP S6425564 A JPS6425564 A JP S6425564A
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- base region
- common collector
- region
- collector 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)
- Bipolar Integrated Circuits (AREA)
Abstract
PURPOSE:To improve integration density, by reducing a resistance component between the base region of a second transistor, which is connected in a Darlington pattern, and a common collector region. CONSTITUTION:A base region 3 of a second transistor is arranged around a base region of a first transistor in a ring shape. A common collector region 5 is arranged around the base region 3 of the second transistor in a ring shape. A large current flows through a path from the common collector region 5 to the base region 3 of the second transistor by way of an embedded layer 12 and an epitaxial layer 11. At this time, the distance through the embedded layer 12 becomes equal and minimum for the current passing any part of the common collector region 5. The resistance component from the common collector region 5 to the base region 3 of the second transistor can be made minimum.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62181177A JPS6425564A (en) | 1987-07-22 | 1987-07-22 | Semiconductor device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62181177A JPS6425564A (en) | 1987-07-22 | 1987-07-22 | Semiconductor device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6425564A true JPS6425564A (en) | 1989-01-27 |
Family
ID=16096228
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62181177A Pending JPS6425564A (en) | 1987-07-22 | 1987-07-22 | Semiconductor device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6425564A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005033020A (en) * | 2003-07-04 | 2005-02-03 | Sanken Electric Co Ltd | Semiconductor element |
-
1987
- 1987-07-22 JP JP62181177A patent/JPS6425564A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005033020A (en) * | 2003-07-04 | 2005-02-03 | Sanken Electric Co Ltd | Semiconductor element |
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