A fabrication process requires 25 masks. (a) What fraction of the dice must be good during each mask step if we require 30% of the final dice to be good. (b) How about if we require 70% to be good?
A fabrication process requires 25 masks. (a) What fraction of the dice must be good during each mask step if we require 30% of the final dice to be good. (b) How about if we require 70% to be good?
1. removed
2. Don't we need the probability that a masking step be a success?
RonL
Last edited by CaptainBlack; January 31st 2008 at 09:39 PM.