Circuit programming by use of an electrically conductive light shield
US4581628A · kind A · utility
47Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1982 |
| Grant date | Apr 8, 1986 |
| Priority date | — |
| Expiry date | Sep 27, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
The present invention consists in a semiconductor integrated circuit device characterized in that a circuit programming wiring layer is formed on an insulating film which is provided on a semiconductor substrate, and that a light shielding protective mask material is deposited around the circuit programming wiring layer except a program part thereof, through an insulating film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.