Computer-aided design and analysis of circuits and semiconductor – Nanotechnology related integrated circuit design
Reexamination Certificate
2008-01-08
2008-01-08
Do, Thuan (Department: 2825)
Computer-aided design and analysis of circuits and semiconductor
Nanotechnology related integrated circuit design
C716S030000, C716S030000
Reexamination Certificate
active
07318212
ABSTRACT:
The present invention is a method and system for modeling wiring routing in circuit design. According to some embodiments, the wire model objects (“WMO”) may be inserted into the wiring routing on a ‘WMO-per-segment’ basis. According to some other embodiments, the wire model objects may be inserted into the wiring routing per groups of sequential segments. The entire wiring routing geometry may constitutes one group, and a wire model object may be inserted between the source point(s) and the target points based on the longest path in the routing geometry. An insertion rule may be selected based on any combination of the following factors: segment length, total path length, spacing between adjacent segments, wire metal and wire width. A wire model object may be selected from a group consisting of: {“C”; one “RC” arrangement; ‘n’ times “Π”-type filter arrangement, wherein n=1, 2, 3, . . . , }. Several length ranges may be predefined to associate each segment, or path, with a particular type of wire model object.
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Amit Niv
Bustin Ronit
Goren Lidor
Heymann Omer
Leibowitz Moshe
Do Thuan
Erez Suzanne
International Business Machines - Corporation
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