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Ionizing radiation effects on HgCdTe MIS devices

Conference · · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (USA)
OSTI ID:5767720
; ;  [1];  [2]
  1. Northrop Electronics Systems Div., Hawthorne, CA (US)
  2. Naval Research Lab., Washington, DC (USA)

Total-dose irradiations of HgCdTe MIS capacitors containing an anodic-sulfide interface passivation layer reveal electron and hole trapping in the insulator and irradiation-bias dependences of flatband voltage shift, interface trap density, surface generation velocity, and storage time. Under positive irradiation bias, charge buildup in the insulator is dominated by trapped holes. Isochronal annealing studies reveal nearly complete recovery of the flatband voltage at {approximately} 275 K for an irradiation of 10{sup 5} rad(Si) at {approximately} 80 K. Significant neutralization of trapped holes is evident if the applied bias is changed during irradiation.

OSTI ID:
5767720
Report Number(s):
CONF-900723--
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. 37:6; ISSN 0018-9499; ISSN IETNA
Country of Publication:
United States
Language:
English