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

Capacitance Model EquationsQsWactive LactiveCox=−⎛ AVgsteff cv bulk '2⎜− V⎝ 2ds⎞⎟⎠2⎛ 422⎜V − V A V + V A V − A V⎝ 3315( ' ) ( ' ) ( ' )3 2 2 3gsteffcv gstefcvf bulk ds gsteffcv bulk ds bulk ds⎞⎟⎠Q =− ( Q + Q + Q )d g b s(iii) 0/100 Channel-charge Partition⎛⎜( )Q W L C V gstefcv Abulk Vds Abulk Vdss=− ⎜''active active ox+ −2 4 ⎛ A⎜24⎜Vgsteffcv−⎝⎝ 22bulk'Vds⎞⎟⎟⎞⎟⎠⎟⎠Q =− ( Q + Q + Q )d g b sif (V ds > V dsat )VQ = Q + W L C⎛1⎜V−⎝ 3g g active active ox gsteff cv dsat⎞⎟⎠( gsteffcv − dsat )Q Q W L C V Vb = b1 − active active ox3BSIM3v3.2.2 Manual Copyright © 1999 UC Berkeley B-20