SU1827152A3 - Power bipolar transistor with overvoltage protection - Google Patents
Power bipolar transistor with overvoltage protectionInfo
- Publication number
- SU1827152A3 SU1827152A3 SU4927444/25A SU4927444A SU1827152A3 SU 1827152 A3 SU1827152 A3 SU 1827152A3 SU 4927444/25 A SU4927444/25 A SU 4927444/25A SU 4927444 A SU4927444 A SU 4927444A SU 1827152 A3 SU1827152 A3 SU 1827152A3
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- avalanche diode
- transistor
- transistor structure
- working
- base
- Prior art date
Links
Abstract
FIELD: manufacture of semiconductors. SUBSTANCE: power bipolar transistor with overvoltage protection has a working transistor structure and a protective avalanche diode in the form of a transistor with a "floating" base integrated with the mentioned working transistor structure in a single semiconductor substrate in such a way that they have a common collector, and the emitter region of the avalanche diode is resistive-coupled to the base region of the working transistor structure; the width and/or degree of doping of the active base of the protective avalanche diode are smaller than those of the active base of the transistor structure so that the breakdown voltage between the collector emitter of the mentioned avalanche diode is lower than that between the collector and emitter of the working transistor structural, with its base circuit being broken. The novelty in the transistor is the limitation of the degree of doping of the avalanche diode emitter region in such a way that the degree of doping of the mentioned emitter region of the protective avalanche diode (N) is lower than that of the emitter region of the working transistor structure (N), and N< 2•10at/cm. EFFECT: enhanced resistance to secondary break-down. 1 dwg
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU4927444/25A SU1827152A3 (en) | 1991-04-18 | 1991-04-18 | Power bipolar transistor with overvoltage protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU4927444/25A SU1827152A3 (en) | 1991-04-18 | 1991-04-18 | Power bipolar transistor with overvoltage protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1827152A3 true SU1827152A3 (en) | 1996-06-27 |
Family
ID=60541128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU4927444/25A SU1827152A3 (en) | 1991-04-18 | 1991-04-18 | Power bipolar transistor with overvoltage protection |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1827152A3 (en) |
-
1991
- 1991-04-18 SU SU4927444/25A patent/SU1827152A3/en active
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