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The effect of poly-gate sidewall oxidation on short-channel MOSFET behavior is examined. The gain, threshold voltage, and apparent electrical channel length are shown to be very sensitive to the location of the n/sup -/ junction edge with respect to the poly-gate edge for a lightly-doped-drain NMOS transistor. New guidelines for the design of submicrometer MOSFETs based on an analysis of the sidewall oxidation of the polysilicon after gate definition are proposed.>
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Pfiester et al. (1989) studied this question.
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