Stats

  • Locked Locked
  • Replies 2
  • Subscribers 126
  • Views 18425
  • 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

Doubt regarding layout gpdk 45nm

madhusudha

Hello

I am are doing my UG Final year project using cadence gpdk 45nm technology,

It would be of great help if someone explain and help us find a solution for the following two error messages:

  => OXIDE.A.1:Minimum area for Active area >=0.035 um

  =>METAL.A.1:Metal area must be >=0.02 um

These errors pertain to vias used- nwell and psub

Could someone also brief about the vias used  for nmos and pmos in gpdk 45nm technology?

Thanks in advance!

Parents
  • theopaone

     Placing those two vias as stand alone via placements does not guarantee that they will be correct, they should be correct in a design context. As Andrew said, the metal meets the area rule when connected to  a route. You placed the vias without interaction with any program (interactive router for example) so the enclosures to the cuts are not updated to the rules. You will have to modify the placements by increasing the enclosures or putting in more than one cut to meet the diffusion area rules.

     Ted

Reply
  • theopaone

     Placing those two vias as stand alone via placements does not guarantee that they will be correct, they should be correct in a design context. As Andrew said, the metal meets the area rule when connected to  a route. You placed the vias without interaction with any program (interactive router for example) so the enclosures to the cuts are not updated to the rules. You will have to modify the placements by increasing the enclosures or putting in more than one cut to meet the diffusion area rules.

     Ted

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.