Doesn't quite work like that. If the die needs to interact with the world, it needs a pad ring. That's a lot larger. It will basically be like this die when

Doesn't quite work like that. If the die needs to interact with the world, it needs a pad ring. That's a lot larger. It will basically be like this die when students placed a small MIPS core. http://pages.hmc.edu/harris/cmosvlsi/4e/lect/lect2.pdf http://pages.hmc.edu/harris/cmosvlsi/4e/lect/lect2.pdf (See slide 29) But the center will be a whole lot emptier.