digital asic layout view

[siva_7517]

metal fill in asic

Hi,

Sould i insert metal fill at the end of my design? Can anyone give me a layout picture which includes io pad which will be taken to gds2. I need this to compare with my design.

Thanx

 

[arimilli_r]

layout picture +asic

Hi,
Are you doing physical design for full chip/module or doing custom layout (like standard cells etc..,) .

If you are doing lcustom design no need to bother about metal fill, if you do metal fill in custom layout it will uncessarly consumes the routing grids.

You should give metal fill at the last stage of the physical design flow at fullchip/module level.

Thanks,

Rajesh Arimilli.

 

[linuxluo]

digital asic layout

hi,
metal fill is a necessary part of design aimed for drc.
and it could be floating metal fill which is prefered or tied metal fill.

 

[arimilli_r]

Hi linuxluo,
Yes, metal fill is req but what i mean to say is if you do standard cell / custom cell u no need to do that ,because top level guy who uses ur cells in his full chip/module level will clear these voilations at that stage. If you want to do metalfill for standard cell then ur using some routing tracks which can be used by the top level routing.

Thanks,

Rajesh Arimilli.