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what is the function of the filler cell in P&R process

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owen_li

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function of filler cell

Can you explain the function of the filler cell in P&R process. And what is the physical construct of the filler cell, thx
 

filler cell

Filler cell is used to maintain the Nwell continuity in the standard cell so if u add filler cells before routing it provides decoupling capacitance and if u add after routing the tool will check for the DRC....
It is basically to maintain the continuity and to fill the gaps in the rows of the standard cell...
Hope it is clear for u..
 
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