rca
Advanced Member level 5
Filler cell won't fix the metal density, but as already explain, fix nwell.
The filler cell is only required between std cell, not mandatory for start row to the first std cell ( same idea to the end of the row).
And the filler cell is not needed to finish the power std cell connection.
Filler cell don't impact the timing because the filler cells should be added before the routing.
capacitance filler cell could impact the timing because the routing usage is not null as the filler cell.
The filler cell is only required between std cell, not mandatory for start row to the first std cell ( same idea to the end of the row).
And the filler cell is not needed to finish the power std cell connection.
Filler cell don't impact the timing because the filler cells should be added before the routing.
capacitance filler cell could impact the timing because the routing usage is not null as the filler cell.