I have a design which using Astro to do APR....
In the Physical Verification state, Astro check DRC result is no violation. But check DRC in calibre have violation.
Can anyone tell me how to fix the DRC violation?
we had the same probelm.. actually astro drc is not too good ... so it shows clean.. but when u run the gds using calibre or hercules... using the foundry runset you will get real errors...
If u have metal spacing errors...
do manual editing...
thats the best way.. and I too did for last chip....
Caution is that after its drc clean.....don't do search and repair in astro.. it will screw up everyting....and it lets back to orginal situation...
Hi
This happened often in astro.Because its DRC module is not very good and there are some DRC rules not in your lib.
Do not believe the DRC result of astro,calibre can do it better.
If you get such a big DRC violations there is something fundementally wrong in your setup. As flyankh suggested there is some problem with your technology file or grid setting