Noise Modeling with HiSIM Based on Self-Consistent Surface-Potential Description

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Accurate prediction of noise characteristics is a prerequisite for RF-circuit simulation. We demonstrate here that the 1/f noise is modeled only with the trap density as a model parameter and the thermal drain noise is determined only by the I-V characteristics even for short-channelMOSFETs. Good agreement with measurements is the justification of the model implemented in HiSIM, the circuit simulation model based on a full surface-potential description. The thermal drain-noise coefficient of short-channel MOSFETs increases from 2/3 under the saturation condition. The origin is explained by the potential increase along the channel.

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Journal: TechConnect Briefs
Volume: Technical Proceedings of the 2005 Workshop on Compact Modeling
Published: May 8, 2005
Pages: 229 - 232
Industry sector: Sensors, MEMS, Electronics
Topics: WCM - Compact Modeling
ISBN: 0-9767985-3-0