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Hello, what are the standard values for Kn' for NMOS and Kp' for PMOS for 130nm PDK. These values should be constant for PDK am I right? <@U016EM8L91B>

Do you mean the transconductance coefficient?  That's a level 3 model parameter, not a BSIM model parameter, as far as I know.

You can look at the published data here:  <https://skywater-pdk.readthedocs.io/en/main/rules/device-details.html#v-pmos-fet>
where each transistor has a row ILKN* or ILKP* (that I assume comes from e-test data).  However, this value is not the transconductance coefficient as the value is declared to be in units of log(A), so it's related to transconductance but I'm not entirely sure what it is that's being measured.

Okay, I guess the BSIM model defines the mobility coefficient u0, and from the SPICE models looks like it is typically 0.03 for nFETs and 0.01 for pFETs (units of V^-1).  You can calculate K' from K' = u0 * Cox.

Thanks!! <@U016EM8L91B> Will calculate the Kn' from above data..

Hello <@U016EM8L91B> i am trying to calculate the drops according to that to decide the transistor size for reram programming for that sky130_fd_pr__nfet_g5v0d10v5 where can i find mobility u0 and cox

`u0` is in the model.  `cox` is not a model parameter;  it has to be derived from the value for `tox` (`toxe`).  I'm looking in file `$PDK_ROOT/sky130A/libs.ref/sky130_fd_pr/spice/sky130_fd_pr__nfet_g5v0d10v5.pm3.spice` .

<@U016EM8L91B> thank you for the information