[CST-2] VLSI

[Anthony Jones]

Page 16 of the VLSI notes, the CMOS gate matrix: At the top there's a
p-type diffusion, with breaks in it where there are p-type transistors with
their gates tied high:

MMMMMMMMMMMMMMMMMMMM  <- Metal
    M  P  M             
DDDDMDDPDDMDDDDDDDDD  <- Diffusion (p-type)
       P
       ^
       |
       \---------------- Polysilicon (causing break in diffusion)

But then the diffusion is connected to the power line on both sides of the
p-type transistors, meaning that the break caused by the p-type transistor
is effectively pointless, and you could do away with it entirely...

Or am I missing something?

Ant

-- 
The obligatory bit about my email address:
This account will be closed on July 15th 2002.
Please use ant@cantab.net