MOS logic circuit responsive to an irreversible control voltage for permanently varying its signal transfer characteristic
US4533841A · kind A · utility
21Cited by
7References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 3, 1982 |
| Grant date | Aug 6, 1985 |
| Priority date | — |
| Expiry date | Sep 3, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/215
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A MOS logic circuit including a known MOS logic circuit arrangement having a particular input/output signal transfer characteristic and a control gating circuit including an FET connected to the known MOS logic circuit arrangement, the gate of which gating circuit receives a control voltage derived from an irreversible control voltage generator utilizing a fuse. Under the control of the irreversible control voltage, the MOS logic circuit can permanently change the known logic circuit arrangement's signal transfer characteristic without varying its logic function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.