pad cell,filler cell,corner cell

[prahullchintu]

what is pad cell?
what is the difference between filler cell n corner cell?
though they both used for continuity

 

[Prashanthanilm]

This thread below will be helpful to understand better :

https://www.edaboard.com/threads/46688/

 

[kumar_eee]

Corner cells - For pad ring connectivity, it contains only Metal layers. no active layers. these special cells contains metal structures that are bent 45 degrees, to maintain continuity of IO power buss structures.