capcitance value after extraction .?

[bio_man]

Hi guys,,

how we can know the capacitance value after extraction?
I use Tanner v.15 tools and after extraction a nitlist report show up indicating the name and the area of the capacitor as follows ;

========
********************************************************************************
* SPICE netlist generated by HiPer Verify's NetList Extractor
*
* Extract Date/Time: Fri Mar 30 16:15:20 2012

* L-Edit Version: L-Edit Win32 15.02.20100805.07:58:22
*
* Rule Set Name:
* TDB File Name: file path is indicated
* Command File: file path is indicated
* Cell Name: Cap_10x10
* Write Flat: YES
********************************************************************************

jkd

****************************************
X1 Cap_10x10
****************************************

---------- Post added at 14:25 ---------- Previous post was at 14:18 ----------

I want see the capacitance value (for example 1pf that's one pico farad),, any idea guys>?

 

[bio_man]

ohh guys 26 veiws withou replying I really appreciate your comments and suggetions..

 

[timof]

This seems to be an intended capacitance (as opposed to interconnect parasitic capacitance).

For interconnects parasitic capacitance, the entries in the extracted SPICE netlist would start from "C", and would report capacitance in Farads.

For intended capacitors, the extracted netlist would contain a reference to device (capacitor) instance with its parameters - like area and perimeter - but not its value in Farads. The capacitance value (in Farads) would be calculated through the compact (SPICE) model of the capacitor by the circuit simulator.

 

[maadi1225]

Hi,

I am working with Tanner V 15.02 in 0.35 um CMOS technology. I got a problem in layout extraction. I followed the instructions but they were not completed. I wrote " netlistingForSimulation, avoidParDio" in “Calibre defines” part, but I don't know what should I choose for "Extract Rules Sets to run" at the same window. In previous versions we were supposed to choose "XH035.ext" file but in newer versions it doesn't work furthermore. Could you please help me clearly?

 

[InverseUniverse]

Hi,

There is a problem with that capacitor's extraction as you are supposed to see other parameters there. you need to look at the device extraction rule set and see if the device is generated accordingly

 

[polygon pusher]

"Extract Rules sets to Run" should point to a file provided by the foundry for the process you are working on.

For example in our working we are using an XFAB kit and Calibre.

..........\calibre\xh035\xh035_1011 ( Process rules)