Does anyone know a good way to view netlists as schematics?

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? @User

So how is Xyce vs ngspice ? I know the former is a pain to build, but is it much faster ?

Hi everyone, I am trying to install open_pdks but I get an error when I run make after doing ./configure --enable-sky130-pdk=/home/darunix/GitSandboxes/open_pdks/open_pdks/sources/skywater-pdk/libraries/ Here is the error:

Are there near plans to fix the skywater analog models? The models behave poorly in moderate/weak inversion. The snapshot below is an example.

Hi, I have installed open_pdks but when I launch xschem I get missing symbols (see attached). I have run the open_pdks install with and without --enable-xschem-sky130 but issue is still there. What step could I be doing wrong?

Hi, How does the sizing work for NMOS and PMOS devices? I originally thought the sky130 meant the smallest channel length would be 130nm, but it seems that devices like nfet_01v8 have a default L of 0.15 in xschem. Is that shortest length, or is it okay to change it to 130nm?

Is there any way to delete a label in magic without deleting the paint layer underneath? Right now I've been using the undo function or trying to delete the label and then redrawing the paint underneath but it takes a lot of time

Hi, I recently installed xschem on windows 11 using XSchem-3.4.4-64bit.msi. Followed the instructions at https://github.com/StefanSchippers/xschem/blob/master/XSchemWin/INSTALL_WIN. And the netlisting works OK. But xschem gives the following error message when I simulate.

I am trying to perform a parametric sweep with ngspice(following Section 17.8.8 of ngspice manual) as shown in the code below for nfet_01v8

.dc V1 0 1.8 0.01

.control

let start_WN1 = 1e-6

let stop_WN1 = 100e-6

let delta_WN1 = 10e-6

let actual_WN1 = start_WN1

while actual_WN1 le stop_WN1

alter m.xm1.msky130_fd_pr__nfet_01v8 W = actual_WN1

dc V1 0 1.8 0.01

* plot v(Vout)

let actual_WN1 = actual_WN1 + delta_WN1

end

plot dc1.v(Vout) dc5.v(Vout) dc10.v(Vout)

.endc

But running this simulation I get:

*Error:* no model available for w=1.100000e-6 l=1.500000e-7

and so on for all the values iterated. I understand that only certain parameter combinations are available and any other sizes result in interpolated models. Any help regarding on how I can perform such a parametric sweep type simulation would really help.