capacitance

What happens to drain capacitance and overall capacitance ,if i do fingering of device..

How Filler is used for ECO cell generation. ???

Yadhunandan,
What happens to drain capacitance and overall capacitance ,if i do fingering of device..

Drain Capacitance will decrease when the MOS undergoes finger structure.
Eg: S|D -> Will have more Drain Cap comparatively
S|D|S -> Fingered (having same width as above) Here the Capacitance will be less .

Yadhunandan,
How Filler is used for ECO cell generation. ???

Filler cell will have all the base layers present in the layer.
Namely: NWELL,PWELL,N and P Active regions, Poly and other layers like NSD,NLDD.. (Depending upon technology)

ECO cells are made using these filler cells.
ECO = Filler + Metal and Contact connections
ECO uses filler and it uses the metal connection to derive the functionality of the required cells .

Let me know if you have any queries on the same

Thanks,
Prashanth M