07159197 is referenced by 183 patents and cites 51 patents.

A shape-based layout beautification operation can be performed on an IC layout to correct layout imperfections. A shape is described by edges (and vertices) related according to specified properties. Each shape can be configured to match specific layout imperfection types. Corrective actions can then be associated with the shapes, advantageously enabling efficient formulation and precise application of those corrective actions. Corrective actions can include absolute, adaptive, or replacement-type modifications to the detected layout imperfections. A concurrent processing methodology can be used to minimize processing overhead during layout beautification, and the actions can also be incorporated into a lookup table to further reduce runtime. A layout beautification system can also be connected to a network across which shapes, actions, and IC layout data files can be accessed and retrieved.

Title
Shape-based geometry engine to perform smoothing and other layout beautification operations
Application Number
10/40055
Publication Number
7159197 (B2)
Application Date
December 31, 2001
Publication Date
January 2, 2007
Inventor
Donald Zulch
Santa Clara
CA, US
Pratheep Balasingam
San Jose
CA, US
Vinod K Malhotra
San Jose
CA, US
James K Falbo
San Jose
CA, US
Agent
Jeanette S Harms
Bever Hoffman & Harms
Assignee
Synopsys
CA, US
IPC
G03C 5/00
G06F 17/50
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