Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ulrich A. Finkler0
Nakgeuon Seong0
Pieter J. Woltgens0
Rama N. Singh0
Fook-Luen Heng0
Gregory A. Northrop0
James A. Culp0
Jin Fuw Lee0
...
Date of Patent
May 19, 2009
0Patent Application Number
109171930
Date Filed
August 12, 2004
0Patent Primary Examiner
Patent abstract
A design system for designing complex integrated circuits (ICs), a method of IC design and program product therefor. A layout unit receives a circuit description representing portions in a grid and glyph format. A checking unit checks grid and glyph portions of the design. An elaboration unit generates a target layout from the checked design. A data prep unit prepares the target layout for mask making. A pattern caching unit selectively replaces portions of the design with previously cached results for improved design efficiency.
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