Method and apparatus for representing items in a design layout

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

Reexamination Certificate

active

10443595

ABSTRACT:
Some embodiments of the invention provide novel methods for representing items in a design layout. For instance, they use a method that identifies several half-planes, that when intersected, define the shape of the item. Some embodiments use a method that (1) identifies a first set of location data for the item with respect to a first coordinate system, (2) identifies a second set of location data for the item with respect to a second coordinate system, and (3) specifies the item in terms of the first and second set of location data. In some embodiments, both the first and second coordinate systems have first and second coordinate axes. Some embodiments use a method that receives a first set of data that defines the item with respect to a first coordinate system of the design layout.

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