Hi Lily,

if you talk about metal density checks, I would suggest using a DRC tool (Dracula, Diva, Assura, Calibre). It may take some more of your time because you have to switch tools (I don't think you can run Assura directly from SE). I think there also is an antenna verification in SE which sometimes gives strange results. I wonder if the implementation of these tools has been improved in SoC-Encounter.

In most cases, the foundry mask shop people take care of adding dummy metal to comply with the density rules. Maybe you don't need to care too much about this (especially in the case of a standard-cell design in SE).

Paul

Hi Lily,

The DRC tool usually does what it is asked for by the rule file. I believe most foundries specify the density per sqmm or something comparable, and that's what is defined in the rules. If you want to obtain a value for the whole chip, you probably have to write an additional rule defining the calculation on the whole chip area at once. To me this seems feasible (althoug I never tried).

If needed, please mention the tool you intend to use and I may be able to direct you to the corresponding command.

Paul

Hi Lily,

I've never used Diva, so I will have some trouble guiding you. In case I can get hands on a documentation I'll try to have a look, otherwise I'm sure somebody else will be able to help you out.

Paul

Thank both you two very much!  

//lily