Channel length modulation parameter? (Lambda kappa Pclm)

[CHL]

channel length modulation parameter? (lambda kappa Pclm)

Hello

I'm confused about the name of the channel length modulation parameter.

BSIM1: lambda
BSIM2: kappa
BSIM3: Pclm

Are they same? or all different?

 

[gs65]

Re: channel length modulation parameter? (lambda kappa Pclm)

hi,
all the three defines the channel length modulation (clm) . The parameter that defines clm depends on the device models of SPICE that you are using.

1st generation models - clm is defined by lambda
2nd generation - kappa
3rd generation - pclm.

Higher level model defines the short channel effects accurately.