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BSIM3v3.2.2 MOSFET Model - The University of Texas at Dallas

BSIM3v3.2.2 MOSFET Model - The University of Texas at Dallas

BSIM3v3.2.2 MOSFET Model - The University of Texas at Dallas

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Capacitance <strong>Model</strong> Equ<strong>at</strong>ions⎡Q W L C V V A 2⎢ gs − th bulk ' ( Abulk' Vds)d=−active active ox⎢+ Vds−A⎢ 2 424(Vgs−Vth−⎣2bulk'Vds⎤⎥⎥) ⎥⎦Qs =− ( Qg+ Qb+Qd)otherwiseVds<strong>at</strong>Qg = Wactive LactiveCox( Vgs −Vfb −Φs− )3( 1 − Abulk') VQb =− Wactive LactiveCox(Vfb + Φs − Vth+3ds<strong>at</strong>)Q d= 0( ) Q gQ bQs = − +(2) capMod = 1<strong>The</strong> fl<strong>at</strong>-band voltage V fb is calcul<strong>at</strong>ed fromVfb= Vth− Φs− K1oxΦs−Vbseff<strong>BSIM3v3.2.2</strong> Manual Copyright © 1999 UC Berkeley B-17

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