Stats

  • Locked Locked
  • Replies 1
  • Subscribers 92
  • Views 16488
  • Members are here 0
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Innovus Foundation Flow : DRC violation short with cellblockage

Asamson

Hi,

I am trying to place and rout a simple test design using Innovus foundation flow.
But at the end of the flow, I get a short between nets and cell blockage.
I tried to increase the designed area to a huge value (1mm x 1mm) but the short remains.
The design density is at 43%.

You can see en example of short in this picture. The short is on M1.

Thank you in advance for your time.

  • It looks like net n_5 is trying to connect to A2 pin of the cell. You might want to turn on more blockage and see if the cell has some restrictions to prevent the n_5 connection.  n_38 doesn't look like it is restricting any thing, and passes M4 over the shorts.  I believe you have M3 coming from the left and connecting to M2 down to the short M1.  Tool can't get a via over the A2 so it extends the A2 M1 down … creating the short.  Is this what you understand too?

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.