JPS5685837A - Semiconductor device - Google Patents
Semiconductor deviceInfo
- Publication number
- JPS5685837A JPS5685837A JP16296079A JP16296079A JPS5685837A JP S5685837 A JPS5685837 A JP S5685837A JP 16296079 A JP16296079 A JP 16296079A JP 16296079 A JP16296079 A JP 16296079A JP S5685837 A JPS5685837 A JP S5685837A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- type
- layers
- transistor
- collector
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Bipolar Transistors (AREA)
- Element Separation (AREA)
- Semiconductor Integrated Circuits (AREA)
Abstract
PURPOSE:To improve the switching speed of a semiconductor device by extending a base layer to an isolating layer, forming an impurity layer of the same conductivity type as a collector between the base layer and the isolating layer and connecting the impurity layer to the collector. CONSTITUTION:An n type collector layer 3 is epitaxially formed on a p type Si substrate 1 having an n<+> type buried layer, and is isolated with a p<+> type layer 4. A p type base layer 5 reaching the layer 4 is formed on the layer 3, and an n<+> type layer 8 is formed over the layers 4 and 5. When a transistor is turned on, the space between the layers 5 and 4 is pinched off with a depletion layer from p-n junctions formed between the layers 3 and 6 and between the layers 6 and 8. When the transistor is turned off, these depletion layers are not almost expanded from these junctions, the space between the layers 5 and 4 is in connected state, and the stored carrier is rapidly discharged. Accordingly, the switching speed of the transistor can be improved.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16296079A JPS5685837A (en) | 1979-12-15 | 1979-12-15 | Semiconductor device |
EP80304070A EP0029350B1 (en) | 1979-11-14 | 1980-11-13 | An output transistor of a ttl device with a means for discharging carriers |
DE8080304070T DE3072002D1 (en) | 1979-11-14 | 1980-11-13 | An output transistor of a ttl device with a means for discharging carriers |
US06/574,583 US4613887A (en) | 1979-11-14 | 1984-01-27 | Semiconductor device with a means for discharging carriers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16296079A JPS5685837A (en) | 1979-12-15 | 1979-12-15 | Semiconductor device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5685837A true JPS5685837A (en) | 1981-07-13 |
Family
ID=15764544
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16296079A Pending JPS5685837A (en) | 1979-11-14 | 1979-12-15 | Semiconductor device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5685837A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49110283A (en) * | 1973-02-20 | 1974-10-21 | ||
JPS49110282A (en) * | 1973-02-20 | 1974-10-21 |
-
1979
- 1979-12-15 JP JP16296079A patent/JPS5685837A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49110283A (en) * | 1973-02-20 | 1974-10-21 | ||
JPS49110282A (en) * | 1973-02-20 | 1974-10-21 |
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