After reading chapter4 from
http://www-device.eecs.berkeley.edu/~bsim3/get.htmlit states that:
Gate Overlap Charge
In the above expressions, if CGS0 and CGD0 (the overlap capacitances
between the gate and the heavily doped source/drain regions, respectively)
are not given, they are calculated according to the following
CGS0 = (DLC*Cox) - CGS1 (if DLC is given and DLC > 0)
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I have checked the model file, it does contain DLC & Cgsl parameters.
How do i know the simulator will use which one?? the given cgso or the calculated cgso from dlc & cgsl..