I am using Version 188.8.131.5207.isr10. And the technology is UMC180nm.
I am trying to do some montecarlo simulations using both "n_lv_33_mm" and "n_33_mm" transistors.
In fact, the simulations are performed well when I use only "n_33_mm" transistors. However, when I include "n_lv_33_mm" transistors in the schematics, it shows the following error:
Error found by spectre during circuit read-in.
ERROR (SFE-74) : Error found in protected block by Virtuoso (R) Spectre during circuit read-in.
Now, I have added the all three montecarlo corners and I think the model libraries corresponding to the low vt transistors are included. Not sure if i can post the full names of the model libraries here though.
If I don't use one of the MC corners, it will show the error:
ERROR (SFE-23) : "input.scs" M0 is an instance of an undefined model n_lv_33_mm.
Thanks in advance,
Your best bet would be to contact whoever supplied the models/PDK (presumably UMC). This requires detailed knowledge of how that PDK is set up to be able to answer it.
when I meet the question like this ,how can i get the error info according to the error code(which like SFE-74)?
SFE-74 is the error code for "Error found in protected block by Virtuoso (R) Spectre during circuit read-in.". It is not an error code corresponding to the real error underneath.
The reason why the real error is suppressed is that people could do things which would force an error within an encrypted block to reveal information about the protected block contents. For example, you could invoke a subckt with the wrong number of terminals, or with incorrect parameters, or attempt to reference a node or component within an encrypted subckt knowing full well that it will fail - this type of thing could unwittingly reveal information that the person who encrypted the netlist wanted to protect.
You probably need to contact the original provider of the encrypted file for assistance.
I see.Thanks a lot.