JPS5565471A - Input protective device for mos integrated circuit - Google Patents
Input protective device for mos integrated circuitInfo
- Publication number
- JPS5565471A JPS5565471A JP13952778A JP13952778A JPS5565471A JP S5565471 A JPS5565471 A JP S5565471A JP 13952778 A JP13952778 A JP 13952778A JP 13952778 A JP13952778 A JP 13952778A JP S5565471 A JPS5565471 A JP S5565471A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- wiring
- small
- wiring layers
- integrated circuit
- 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
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
- Amplifiers (AREA)
Abstract
PURPOSE: To obtain chips as small in size as possible by constituting a wiring connection of n-layer small enough to allow other wiring layers to pass on p-layer from forming a protective diode for which n-layer is formed on p-layer.
CONSTITUTION: An n+-layer 32 is diffused on a p-layer 31, a small connection hole 34 is perforated in an SiO2 film 33 covering the surface, and a wiring layer 35 in ohmic contact is arranged. Then, wiring layers 36, 37 having nothing to do with the protective input device are provided on both sides of the wiring layer 35 on the SiO2 film 33. Thus the hole 34 is arranged small enough as compared with the layer 32, therefore the n+-layer 32 is placed upon the wiring layers 36, 37, and the interval between the wiring layers 36, 37 can be shortened. Thus a space can be utilized effectively at the protective diode section, and hence chips of IC using the input protective diode many particularly are obtainable as small in size as possible.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13952778A JPS5565471A (en) | 1978-11-13 | 1978-11-13 | Input protective device for mos integrated circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13952778A JPS5565471A (en) | 1978-11-13 | 1978-11-13 | Input protective device for mos integrated circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5565471A true JPS5565471A (en) | 1980-05-16 |
Family
ID=15247352
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13952778A Pending JPS5565471A (en) | 1978-11-13 | 1978-11-13 | Input protective device for mos integrated circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5565471A (en) |
-
1978
- 1978-11-13 JP JP13952778A patent/JPS5565471A/en active Pending
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