Drain Current for the Subthreshold Region

These equations apply when V_GS ≤ V_ON .

You cannot use the subthreshold current equations without nfs.

(-17)

where

(-18)

(-19)

(-20)

(-21)

where I_DS,ON is the drain current evaluated at V_GS = V_ON.

These equations apply when V_GS ≥ V_ON and V_DS ≤ V_DSAT .

(-22)

where

(-23)

(-24)

These equations apply when V_GS ≥ V_ON and V_DS ≥ V_DSAT .

(-25)

where

(-26)

(-27)

If ΔL Š L_eff/2, a new value of ΔL(ΔL_new) is calculated to avoid device punchthrough.

(-28)

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