Do anyone know how to solve these issues

Not all W/L valid have according models. Use mult/nf to get multiple transiators connected in parallel

@User I didn't get that

When you specify the W and L value for transistor it goes to lookup table and checks if according model exists. When you set the W and L value too high or too low you get this error. As different W/L models have different characteristics the values of this characteristics are interpolateted from existing models. If you specify values that cant be interpolated (too big W or L) it will give you this error. To avoid this use W and L values that worked but specify mult or nf to get total W that you want.

Ok

Make sure your W and L are in units of microns, as the SkyWater models are all scaled to that (e.g.,

W=1

, not

W=1e-6

).