Input protective circuit for semiconductor device
US4456939A · kind A · utility
12Cited by
9References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 7, 1981 |
| Grant date | Jun 26, 1984 |
| Priority date | — |
| Expiry date | May 7, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An input protective circuit of MIS type device is used by applying reverse bias voltage to a semiconductor substrate and a variable-conductivity element is connected between the input terminal of the MIS type device and the ground so that the input terminal is in conductive state to the ground when the reverse bias voltage is not applied to the semiconductor substrate and the input terminal is in non-conductive state to the ground when the reverse bias voltage is applied to the semiconductor substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.