Mentor FAQ

This page contains answers to questions generated by students. Please review if you are having any trouble to see if your problem has already been addressed. Questions are organized into the following topics.

Design Architect

Simulation

IC Station and Layout

Login, Setup, and general Environment Issues

- Mentor windows don't redraw after toggling-out to Windows 2000 on a PC

Design Architect

Simulation

IC Station and Layout

- WARNING: Direct connection between two different ports:

- Problems in running LVS due to source initialization:

- Mentor windows don't redraw after toggling-out to Windows 2000 on a PC

I found that mentor (ic station anyway) doesn't like to go back and forth between Windows on windows 2000 (it may act similarly in other win9x). if you switch to say notepad and it overlaps with the mentor window then when you switch back to ic station it won't repaint it's window and you have to go to MGC and click on 'clean up windows' ...It does something similar in linux but after you do one clean up window it works perfectly from there on out.

- WARNING: Direct connection between two different ports: Do I need to correct Warnings as well as Errors, and how do I correct this warning?

Generally, yes, you should correct Warnings as well as Errors.

This warning probably means you have assigned a port property to two different layers, possibly to both Metal1 and to Poly at your input. This could happen if you had 2 things selected when you created the port. (It could also be the Contact layer, if you selected it by mistake). To solve this, you should try to find which layers have the 'port = in' property. There are some 'select by' options from the top menu, or you can select them manually, one at a time, and then do a 'report' (from main menu) to determine which layers have the port property. If you find, for example, that both Metal1 and Poly at your input have the 'in' port property, delete the Poly and then re-draw it (and don't assign it a port property). This should solve the problem.

- Problems in running LVS due to source initialization:

1. Make sure the schematic name is entered as MGC_WD/inv/sdl.
If this doesn't make any difference, do step 2

2. Close the ic station window.Try running the dve script/command,
i.e., dve inv -technology ami05 &
in the command window. Then set the working directory (swd) and launch IC Station again.

3.If this fails and the problem still persists, enter the schematic name as MGC_WD/inv/lvs and try running it.