To avoid extracting RFMOS parasitics in Calibre PEX, I used hcell file and gate level extraction type.

Here is my hcell file:

rfnmos1v nmosrf



After extraction, I found following warnings.


1) Warning: Hcell rfnmos1v not located or not allowed.


2) Warning: Name "rfnmos1v" in hcell correspondence file not found in layout - ignored".


In RVE, net parasitics shows that parasitics has still be extracted.



I don't know how to solve this problem. Could you please give me some suggestions?


Thanks in advance!


Jason

Thanks for your input.

What ahout my hcell file? Is it right?

Which one should follow the name in layout, the former or the latter?

Hi Jason,

In the hcell file from a Big foundry, the first column contains the sub-circuit name for the RF devices; the second column contains the LVS model name defined in the LVS command file. I extracted a small layout with this file successfully.

I looked at the Calibre manual for 2004 and 2007. It states that the first column is layout name and the second column is source name. I don't know which one is correct now. Maybe both are correct.


Yawei