Method of and apparatus for protecting electronic circuit agains

Details Method of and apparatus for protecting electronic circuit agains Method of and apparatus for protecting electronic circuit agains

1991-02-13

1993-12-14

Dzierzynski, Paul M.

Radiant energy

Radiation controlling means

Shields

2505051, B64G 154

Patent

active

052705510

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.

REFERENCES:
patent: 4847506 (1989-07-01), Archer
"Total-Dose Radiation and Annealing Studies" by P. S. Winokur et al., IEEE Trans. on Nuclear Science, vol. NS-33 No. 6, 1986, pp. 1343-1351.
"Total Dose Hardness Assurance for Microcircuits for Space Environment" by P. Buchman, IEEE Trans. on Nuclear Science, vol. NS-33, No. 6, 1986, pp. 1352-1358.

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