Accurate and global model of SOI H gate body-tied MOSFET for circuit simulator

Abstract

Drain current of SOI H-type body-tied MOSFET can be modulated in gate length or width because of its additional gate region. It causes a serious problem especially in analog circuit design. There is, however, no model including the gate shape effect even in the newest release BSIMSOI [1]. An accurate and global model of SOI H-type body-tied MOSFET in circuit simulation has been proposed for the first time. It is confirmed that the simulation accuracy of the proposed model has greatly improved within 10% RMS error compared to the existing model.