A Compact IGFET Charge Model

Bing J. Sheu, Don L. Scharfetter, Chen-Ming Hu, Donald O. Pederson

Research output: Contribution to journalArticlepeer-review

25 Scopus citations


A new IGFET charge model, consistent with the recently published Compact Short-Channel IGFET Model [1], [2], is presented. It is simple, accurate, and suitable for circuit simulation applications. Charge conservation is guaranteed by using charge as the state variable. The partitioning of channel charge into drain and source components is given significant attention. This partitioning changes smoothly from 40/60 in the saturation region asymptotically to 50/50 in the triode region. The terminal charges are well behaved over all regions of operation. This charge model and its dc characteristic counterpart, derived from the same considrerations of MOS device physics, form a unified model previously unavailable.

Original languageEnglish
Pages (from-to)745-748
Number of pages4
JournalIEEE transactions on circuits and systems
Issue number8
StatePublished - 1 Jan 1984

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