JPS5552240A - Semiconductor integrated circuit device - Google Patents
Semiconductor integrated circuit deviceInfo
- Publication number
- JPS5552240A JPS5552240A JP12557178A JP12557178A JPS5552240A JP S5552240 A JPS5552240 A JP S5552240A JP 12557178 A JP12557178 A JP 12557178A JP 12557178 A JP12557178 A JP 12557178A JP S5552240 A JPS5552240 A JP S5552240A
- Authority
- JP
- Japan
- Prior art keywords
- area
- wiring
- input
- type
- island
- 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.)
- Granted
Links
Landscapes
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Bipolar Integrated Circuits (AREA)
Abstract
PURPOSE: To provide a semiconductor IC device having excellent input clamping characteristics by forming an npn transistor in a tunnel wiring island region that constitutes part of the input wiring system.
CONSTITUTION: An n-type layer 3 is formed in a p-type semiconductor substrate 1 to constitute an island with an isolation layer 4. p-Type impurities are diffused in all areas but an area 31 to form a furth area 5 of the p-type. Further, n-type impurities are diffused in a high concentration to form a third area 61 and area 62. Thereupon an input terminal pad 100 and an input circuit wiring 92 are formed to be connected to the area 61, while the area 62 is connected to a VCC wiring 94 and the substrate 1 to a GND wiring 93, the input wiring intersecting wirings 95 and 96. Thus an npn transistor is formed with the island of layer 3 working as collector, the fourth area 5 as base, and the third area 61 as emitter, so that clamping may take place on the input circuit wiring 92 without being affeted by parasitic resistance.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12557178A JPS5552240A (en) | 1978-10-11 | 1978-10-11 | Semiconductor integrated circuit device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12557178A JPS5552240A (en) | 1978-10-11 | 1978-10-11 | Semiconductor integrated circuit device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5552240A true JPS5552240A (en) | 1980-04-16 |
JPS6128218B2 JPS6128218B2 (en) | 1986-06-28 |
Family
ID=14913474
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12557178A Granted JPS5552240A (en) | 1978-10-11 | 1978-10-11 | Semiconductor integrated circuit device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5552240A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58143565A (en) * | 1982-02-19 | 1983-08-26 | Matsushita Electronics Corp | Semiconductor circuit wiring body |
JPS61240668A (en) * | 1985-04-17 | 1986-10-25 | Sanyo Electric Co Ltd | Semiconductor integrated circuit |
-
1978
- 1978-10-11 JP JP12557178A patent/JPS5552240A/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58143565A (en) * | 1982-02-19 | 1983-08-26 | Matsushita Electronics Corp | Semiconductor circuit wiring body |
JPH0542814B2 (en) * | 1982-02-19 | 1993-06-29 | Matsushita Electronics Corp | |
JPS61240668A (en) * | 1985-04-17 | 1986-10-25 | Sanyo Electric Co Ltd | Semiconductor integrated circuit |
JPH0523066B2 (en) * | 1985-04-17 | 1993-03-31 | Sanyo Electric Co |
Also Published As
Publication number | Publication date |
---|---|
JPS6128218B2 (en) | 1986-06-28 |
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