kovibb
Member level 1
Hi all,
I have a little problem in layout with nch_lvt standard cell. This cell have PDKREC/wellbody Pin layer which defined transistors´s bulk (B) pin. I used Connectivity-Driven capability of Virtuoso design kit to create layout. However I can´t connect this bulk (B) to VSS! net on Metal 1. I setup "tsmcN90rf.tf" technology file and Coinstrain group to "foundary". I tried to exploit M1_SUBv via but it doesn´t work. Annotation Browser still indicate "OPEN on NET" status. :bang:
Please how can I connect bulk of nmos (TSMC 90nm) to VSS! located on Metal 1 layer?
Thanks a lot for any reply and suggestion.
Best
Martin
I have a little problem in layout with nch_lvt standard cell. This cell have PDKREC/wellbody Pin layer which defined transistors´s bulk (B) pin. I used Connectivity-Driven capability of Virtuoso design kit to create layout. However I can´t connect this bulk (B) to VSS! net on Metal 1. I setup "tsmcN90rf.tf" technology file and Coinstrain group to "foundary". I tried to exploit M1_SUBv via but it doesn´t work. Annotation Browser still indicate "OPEN on NET" status. :bang:
Please how can I connect bulk of nmos (TSMC 90nm) to VSS! located on Metal 1 layer?
Thanks a lot for any reply and suggestion.
Best
Martin