06066180 is referenced by 42 patents and cites 11 patents.

According to the preferred embodiment, a method is provided for automatically coloring VLSI design elements for the purpose of assigning binary properties to the elements. The preferred method is particularly applicable for use generating phase shift mask designs from VLSI CAD datasets. The preferred method uses net coloring to automatically generate a data set of colored elements. The preferred method is not dependent on the order in which the elements are operated upon. The preferred method has the additional advantage of being able to automatically detect conflicts that prevent the VLSI design from being optimally colored. The preferred method is equally applicable to hierarchical VLSI databases with nested components and traditional flat databases. When applied the hierarchical databases, the preferred method provides element coloring with minimal data flattening required.

Title
Automatic generation of phase shift masks using net coloring
Application Number
810844
Publication Number
6066180
Application Date
March 15, 1999
Publication Date
May 23, 2000
Inventor
Glenwood S Weinert
San Jose
CA, US
Lars W Liebmann
Poughquag
NY, US
Mark A Lavin
Katonah
NY, US
Young O Kim
San Jose
CA, US
Agent
Schmeiser Olsen & Watts
Agent
H Daniel Schnurmann
Assignee
International Business Machines Corporation
NY, US
IPC
G06K 9/00
G06F 17/50
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