The Designer's Guide Community Forum

The Designer's Guide Community Forum
https://designers-guide.org/forum/YaBB.pl
Other CAD Tools >> Physical Verification, Extraction and Analysis >> Assura Problem
https://designers-guide.org/forum/YaBB.pl?num=1116494554

Message started by Tom on May 19^th, 2005, 2:22am

Title: Assura Problem
Post by Tom on May 19^th, 2005, 2:22am

Hello,

I have a problem with Assura and I hope somebody can help me.

My Goal:
Go through a layout and find all places where the distance between two lines (on the same layer) is less than a required minimum.
I want Assura to do this by executing a Design Rule Check for minimum net distances.

My Problem:
Assura delivers a file with rule violations. These are given as GEOMETRICAL information. But I need to know the NAMES of the nets involved. I see two possible approaches:

1.) Assura delivers net names (and hierarchy information) directly

2.) I read the geometric location information delivered by Assura and look in the Cadence Database for nets at these locations.

Naturally, I would like the FIRST approach to succeed because it would be far simpler for me.

Best regards
Tom

PS: Please excuse my bad english

Title: Re: Assura Problem
Post by DReynolds on May 20^th, 2005, 12:25pm

Tom, can you give some more info about what you are doing... where did the layout come from? Virtuoso, virtuosoXL, place and route? Do you have clean LVS and you are doing extraction?

If you don't have clean lvs, where do you want assura to get net names from? If your layout came from a tool that creates def, you could get the info you are looking for to coorelate physical location with nets from that....

David Reynolds