Circuit sensitivity to interconnect variation
Lin, Z.; Spanos, C.J.; Milor, L.S.; Lin, Y.T.
Semiconductor Manufacturing, IEEE Transactions on
Volume 11, Issue 4, Nov 1998 Page(s):557 - 568
Digital Object Identifier 10.1109/66.728552
Summary:Deep submicron technology makes interconnect one of the main
factors determining the circuit performance. Previous work shows that
interconnect parameters exhibit a significant amount of spatial
variation. In this work, we develop approaches to study the influence of
the interconnect variation on circuit performance and to evaluate the
circuit sensitivity to interconnect parameters. First, an accurate
interconnect modeling technique is presented, and an interconnect model
library is developed. Then, we explore an approach using parameterized
interconnect models to study circuit sensitivity via a ring oscillator
circuit. Finally, we present an alternative approach using statistical
experimental design techniques to study the sensitivity of a large and
complicated circuit to interconnect variations
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