Computer-aided design and analysis of circuits and semiconductor – Nanotechnology related integrated circuit design
Reexamination Certificate
2006-03-07
2006-03-07
Do, Thuan (Department: 2825)
Computer-aided design and analysis of circuits and semiconductor
Nanotechnology related integrated circuit design
C716S030000, C716S030000, C716S030000
Reexamination Certificate
active
07010771
ABSTRACT:
Some embodiments of the invention provide a method of searching for a global path between first and second sets of routable elements in a region of a layout. The method partitions the region into several rectangular sub-regions. It then identifies a set of sub-regions that contain the two sets of elements. Next, it performs a path search to identify a set of path expansions between a sub-region that contains a first-set element and a sub-region that contains a second-set element. When the method performs the path search, it explores expansions along non-Manhattan directions between the sub-regions.
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Frankle Jonathan
Teig Steven
Cadence Design Systems Inc.
Stattler Johansen & Adeli
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