At 03:26 AM 10/12/2011, you wrote:
thanks, but the problem is that, it is defining the values of the capacitors manually in the SPICE code. So, it will not have any relation with the dimensions in the layout. Can you please correct me if I am wrong?
There are some pre-defined variables in the Spice template that might help, but for the most part, they access user-supplied values on the cell. See:
<http://www.staticfreesoft.com/jmanual/mchap09-04-04.html>http://www.staticfreesoft.com/jmanual/mchap09-04-04.html
It *is* possible to write actual code in the Spice templates that will examine the geometry of the cell and compute the proper value, it is very difficult to do this and has never been done (to my knowledge). It would involve making the Spice Template variable of type "code", and writing Java or Python to access the database.
The bottom line is that you cannot do this in a general way, as you have requested. It is best to craft a set of cells that are your common capacitors and use them.
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