Method and apparatus for performing operation on physical...

Computer-aided design and analysis of circuits and semiconductor – Nanotechnology related integrated circuit design

Reexamination Certificate

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Details

C716S030000, C716S030000, C716S030000, C716S030000, C716S030000, C716S030000, C716S030000, C716S030000, C716S030000

Reexamination Certificate

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06912705

ABSTRACT:
A method performs an operation on physical design data stored as data objects in a database. Each data object represents a design figure of an integrated circuit (IC) design laid-out on an IC design area. The method includes (a) dividing the IC design area into a second plurality of sub-areas, (b) assigning an area property to each of the data objects, the area property indicating the sub-areas on which at least part of the corresponding design figure is to be located, (c) selecting a first data object, and (d) conducting an operation involving the first data object and a second data object involving selecting the second data object from a subset of data objects having an area property indicating a sub-area indicated by an area property of the first data object, and performing the operation on the first data object and the second data object.

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Thomas H. Cormen et al., “Introduction to Algorithms” The MIT Press, Publication date, Jul. 16, 2001, 5 pages.

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