I. Prasad et Rs. Srivastava, GENERATION AND ANNIHILATION OF TRAPS IN METAL-OXIDE-SEMICONDUCTOR DEVICES AFTER NEGATIVE AIR CORONA CHARGING, Journal of applied physics, 74(1), 1993, pp. 359-363
Surface and bulk traps along with positive oxide charge accumulation h
ave been found to be generated in metal-oxide-semiconductor capacitors
, when subjected to negative air corona discharge at slightly reduced
pressure (congruent-to 10(-1) Torr). The effects are neutralized and d
evice quality improved when annealed at 200-degrees-C in air. The bulk
traps and a fraction of oxide charges were annealable when kept at ro
om temperature for several months. The results have been analyzed by N
icollian-Goetzberger's conductance technique and a plausible explanati
on is given.