... + + pMOST - - - + terminal voltages as drain-source voltage Vds( = V, - VJ, gate-source voltage V,,( = V, - V,), and bulk-source voltage vb,( = vb - Vs). For normal DC ... has heavily doped p+ source and drain regions with 80 Z 4 LL 0 - W/L = to, = V. 3 MOS Transistor Structure and Operation -4 .0 -3 .2 -2 .4 -1 .6 -0 .8 0 0.8 1.6 GATE VOLTAGE, ... Semiconductor and pn Junction Theory The variables F,,F, and F3 are F, =- *bi [l -( 1 - F,)&apos ;-& quot;] (1 -4 F2 = (1 - F,)l+m F, = 1 - F,(1 + m) (2.87) where F,...