Mechanism of Oxide Leakage Current of Silicide Gate MOSFET's

T. Watanabe, H. Ishiuchi, T. Tanaka, T. Mochizuki, O. Ozawa
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Abstract

Oxide leakage currents of silicide gate MOSFET's have been studied. It has been revealed that large oxide leakage currents flow under the negative gate bias in spite of reasonable Fowler-Nordheim currents under the positive gate bias. Local electric field enhancement due to the interfacial molybdenum silicide asperity well explains the experimental results.
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硅化栅极MOSFET的氧化物漏电流机理
研究了硅化栅极MOSFET的氧化物泄漏电流。结果表明,尽管正栅偏压下存在合理的Fowler-Nordheim电流,但在负栅偏压下仍存在较大的氧化物泄漏电流。界面硅化钼的粗糙性引起的局部电场增强很好地解释了实验结果。
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