The Analysis of Channel Stress Induced by CESL in N-MOSFET

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The strained nitride capping layer (contact etch stop layer, CESL) is used as a stress booster that make transistor improvement. In this research, the n-MOSFET was simulated combining CESL tensile stressor. The stress in channel region for various part of CESL(CESL-top, CESL-lateral, CESL-bottom) were analysed and compared. The result of simulation explains how the CESL transmits the intrinsic stress to the channel. The relations between different CESL structures are discussed in this study.

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235-240

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December 2013

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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