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Correlation between preirradiation 1/F noise and postirradiation oxide-trapped charge in MOS transistors

Conference · · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (USA)
OSTI ID:7198827
;  [1];  [2]
  1. Physics Dept., Oberlin College, OH (US)
  2. Sandia National Labs., Albuquerque, NM (US)

The authors have preformed a detailed comparison of the preirradiation 1/f noise and the radiation-induced threshold voltage shifts due to oxide-trapped and interface-trapped charge, {delta}V{sub ot} and {delta}V{sub it}, for enhancement-mode, 3{mu} gate, n-channel Mos transistors taken from seven different wafers processed in the same lot. These wafers were prepared with gate oxides of widely varying radiation hardness. The authors show that the preirradiation 1/f noise levels of these devices correlate strongly with the postirradiation {delta} V {sub ot}, but not with the postirradiation {delta}V{sub it}. These results suggest that 1/f noise measurements may prove useful in characterizing and predicting the radiation response of MOS devices.

OSTI ID:
7198827
Report Number(s):
CONF-890723--
Journal Information:
IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (USA), Journal Name: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (USA) Vol. 36:6; ISSN 0018-9499; ISSN IETNA
Country of Publication:
United States
Language:
English