Mariana Huerta
05/08/2023, 8:37 PMTim Edwards
05/08/2023, 8:40 PMMariana Huerta
05/08/2023, 9:33 PMTim Edwards
05/08/2023, 10:00 PMarray -list count
and array -list pitch
and somehow coming up with _@_
for the first one, and an empty string for the second. I'm not sure how either of those happens.Mariana Huerta
05/08/2023, 10:51 PMTim Edwards
05/09/2023, 2:36 AMres_xhigh_po
isn't an "approved" device, although it exists as a model. SkyWater approves only five specific widths of device and has five models that match the approved widths. But W=20, L=5 is a poor choice for a resistor. Typically, resistor value matching will be very poor unless L >> W (preferably at least 5 times longer than wide). You are choosing an extremely wide and short device, which is poorly matched and far outside of the modeled device's bounds. You would be better off to select a lower-resistance device at something that gives you L >> W. The mrp1 device (sky130_fd_pr__res_generic_po
) has a resistance of 48.2 ohms/square, so to get the same 500 ohms as your existing resistor, you would need 10.4 squares, so W=20.75, L=2 is a good choice and is smaller than your existing resistor.