Stats

  • Locked Locked
  • Replies 7
  • Subscribers 90
  • Views 25058
  • 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

Metal density/ Density check

archive

Hi All,

Please can anybody give me the information about Metal density/ Density check.

Thanks in advance.


Originally posted in cdnusers.org by mahecadence
Parents

  • Hi -

    You would really have to go by the DRC rules for your technology. As an example we set min density of  45% and max density of 70%. We came up with these numbers after going through the density requirements in our DRC rules.

    setMetalFill -layer { 1 2 3 4 5 6 } -maxLength 4.0 -minLength 0.6 -maxWidth 1.2 -minWidth 0.6 -decrement 0.2 -activeSpacing 0.8 -gapSpacing 0.25 -windowSize 50 50 -windowStep 25 25 -minDensity 20 -maxDensity 70 -preferredDensity 45

    addMetalFill -layer { 1 2 3 4 5 6 } -timingAware on -area

    You could use this as a start point and try experimenting.

    Sanjay


    Originally posted in cdnusers.org by ssunder@sioptical.com
Reply

  • Hi -

    You would really have to go by the DRC rules for your technology. As an example we set min density of  45% and max density of 70%. We came up with these numbers after going through the density requirements in our DRC rules.

    setMetalFill -layer { 1 2 3 4 5 6 } -maxLength 4.0 -minLength 0.6 -maxWidth 1.2 -minWidth 0.6 -decrement 0.2 -activeSpacing 0.8 -gapSpacing 0.25 -windowSize 50 50 -windowStep 25 25 -minDensity 20 -maxDensity 70 -preferredDensity 45

    addMetalFill -layer { 1 2 3 4 5 6 } -timingAware on -area

    You could use this as a start point and try experimenting.

    Sanjay


    Originally posted in cdnusers.org by ssunder@sioptical.com
Children
No Data

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.