Method of and apparatus for protecting electronic circuit against radiation
US5270551A · kind A · utility
48Cited by
1References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 13, 1991 |
| Grant date | Dec 14, 1993 |
| Priority date | — |
| Expiry date | Feb 13, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64G1/54
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An electronic circuit is protected against radiation when the threshold voltage of a semiconductor element included in the electronic circuit is shifted, in a positive direction, to a predetermined upper limit on the basis of the formation of a trap level at an interface within the semiconductor element, the number of trapped positive charges in the semiconductor element is controlled so that the threshold voltage is shifted, in a negative direction, to a value less than the predetermined upper limit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.