IR Drop and EM with SOC Encounter

[eeStud]

Hi,
Anyone knows how can i analyze IR drop & EM with Encounter?

Thanks!

 

[chiranjeevinaidu]

Hi

early power analysis
before your are going ran IR drop and EM in vstrom tool from cadence
1..In you design where the std.cells are placed close to each other or logic is placed only one side of core area,it causes IR drop issue
2..where you have seen long net ,it causes EM migration issue

after ran the IR drop and EM

where you have seen red hotspot in core area,it's seems IR drop in that area...
where you have seen more congestion in core area..,it causes IR drop





Regards
chiranjeevi

 

[eeStud]

Hi,
Thanks for your reply.
I have a few more questions:
1. Can i run the analysis with SOC Encounter? or i have to use vstorm?
2. How do i run it from Encounter?

Thanks.

 

[chiranjeevinaidu]

if you want run IR drop

must should be following input files are required

1.power pin locations of both VCC and GND (VCC.pp) (GND.pp)
2.bump files/bump lef
3. cl files of macros/std.cells and technololgy files
4.sdc (for twf file)

 

[eeStud]

How do i run from Encounter?