Three-point method of prediction of MOS device response in space environments

A method for low-dose-rate MOS device response prediction based on the linear dependence between positive oxide charge anneal and interface states build-up is presented and experimentally verified. A linear relationship is seen to exist between the build-up of slow interface states and oxide trapped hole annealing. The physical explanation of the correlation between the number of trapped holes annealed and the number of interface states generated can be given in both hydrogen and trapped hole conversion models on a phenomenological basis. It is suggested that there is a one-to-K/sub Oi/ relationship (where K/sub Oi/ is some phenomenological constant) between the number of trapped holes annealed and the number of interface states generated.<
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