JPS5593261A - Horizontal-type transistor - Google Patents
Horizontal-type transistorInfo
- Publication number
- JPS5593261A JPS5593261A JP193979A JP193979A JPS5593261A JP S5593261 A JPS5593261 A JP S5593261A JP 193979 A JP193979 A JP 193979A JP 193979 A JP193979 A JP 193979A JP S5593261 A JPS5593261 A JP S5593261A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- collector
- base
- concentration
- emitter
- 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 improve the characteristic by providing thin n-type base layer which surrounds p-emitter layer provided on n-epitaxial layer with its concentration gradually decreasing toward collector layer, by also providing p-layer of lower concentration than collector across the base and collector layer.
CONSTITUTION: An n+-layer is provided by making an opening in oxidized film on n-epitaxial layer 2 equipped with n+-buried layer 3, p+-separated layers 4a, 4b. In addition, p+-type emitter layer 11a and collector layer 11b are provided by making an opening selectively. Next ion is injected to selectively form p--collector layer, so that ohmic n+-layer 14 for base connection is formed. Finally electrodes E, B, C are added. Under this constitution, base 13 is narrow in width and highly concentrated and its concentration is reduced toward collector to form a carrier accelerating field. Consequently hfe, fT become higher. Depression layer formed on collector-base junction does not expand due to the high concentration of the base layer. For this reason, collector-emitter dielectric resistance is increased.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP193979A JPS5593261A (en) | 1979-01-09 | 1979-01-09 | Horizontal-type transistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP193979A JPS5593261A (en) | 1979-01-09 | 1979-01-09 | Horizontal-type transistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5593261A true JPS5593261A (en) | 1980-07-15 |
Family
ID=11515571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP193979A Pending JPS5593261A (en) | 1979-01-09 | 1979-01-09 | Horizontal-type transistor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5593261A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60124869A (en) * | 1983-12-06 | 1985-07-03 | インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション | Lateral p-n-p transistor |
| JPH01181458A (en) * | 1988-01-11 | 1989-07-19 | Toshiba Corp | Semiconductor device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49104576A (en) * | 1973-02-07 | 1974-10-03 | ||
| JPS49105487A (en) * | 1973-02-07 | 1974-10-05 | ||
| JPS5240077A (en) * | 1975-09-26 | 1977-03-28 | Hitachi Ltd | Process for production of lateral transistor |
-
1979
- 1979-01-09 JP JP193979A patent/JPS5593261A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49104576A (en) * | 1973-02-07 | 1974-10-03 | ||
| JPS49105487A (en) * | 1973-02-07 | 1974-10-05 | ||
| JPS5240077A (en) * | 1975-09-26 | 1977-03-28 | Hitachi Ltd | Process for production of lateral transistor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60124869A (en) * | 1983-12-06 | 1985-07-03 | インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション | Lateral p-n-p transistor |
| JPH01181458A (en) * | 1988-01-11 | 1989-07-19 | Toshiba Corp | Semiconductor device |
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