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Early Rail Analysis and Rail analysis

atwork

Hi

Do I need to run ERA before runing RA?

In my pull-down menu, I cannot click on RA after loading the database. Do I need a different level of Encounter licence?

In the ERA menu, there is an input for using instance Current file. How is this file generated?

I have a file which has each instance power information. Can this file be used?

 

thank you

Parents

  • I asked someone more familiar with Rail Analysis, and they advised that in order for the menu pick for RA to be un-greyed, a Power Grid Library needs to be generated.  In order for a Power Grid Library to be generated, first go to "Power->Rail Analysis->Power Grid Library->Set Power Grid Library Mode..." then "Create Power Grid Library" then Rail Analysis should be un-greyed.

    I wanted to test this before passing the advice along to you, but I didn't have a design handy with the required technology files and layer mapping files.

    If your get a chance to try this, please report back and let us know if it resolved your issue.

    Hope this helps,
    Bob

  • in reply to BobD

    Dear BobD, am doing my research in management of PDN. 

    I read some papers claiming that use of Higher metal layers would reduce IR drop. 

    But still we have some IR drop in contemporary designs . 

    Also, there are also some floorplanning solutions which overcomes these drops. 

    Can you please comment on this or explain it .

Reply
  • in reply to BobD

    Dear BobD, am doing my research in management of PDN. 

    I read some papers claiming that use of Higher metal layers would reduce IR drop. 

    But still we have some IR drop in contemporary designs . 

    Also, there are also some floorplanning solutions which overcomes these drops. 

    Can you please comment on this or explain it .

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