Hey all. I am about to start working on an adder. I have to make a schematic and layout. My question is, is it possible to have each symbol have its own layout, and then use that smybol in a layout? So for example have a layout for a 1bit full adder and then merge 4 1bit-full adders into one big layout? I know you can do this with schematics, but I was wondering if you can with layouts.
If yes, should I create layouts at the gate level? or at a higher level, say the 1bit full adder?