
191
5
DfM Metrics
5.1 Introduction
To quantify the design for manufacturability (DfM) success rate, one needs
tangible metrics [1]. The cost and condence level of parameters to choose
from, including all aspects of reliability, yield, and cycle time, vary by orders
of magnitude. The simplest ones are design rule checks (DRCs): A mandatory
clean DRC report policy should ensure, at least theoretically, no fallouts until
the end of the specied product lifetime. Manufacturing yield verication is
hundreds of times more expensive and statistically less signicant, as it is not
possible to test every product for every aspect of its functio ...