Cadence Design Systems, Inc.

Davis Tsai

Randall Scott Lawson

Ken Wadland

Sean Bergan

Richard Woodward

William Schilp

Charles Winston Grant

Glendine Kingsbury

Steve Russo

Kota Sujan Reddy

Keith Woodward

Jia Wu

Jelena Radumilo-Franklin

Jelena Radumilo-Frankilin

In one embodiment of the invention, an object oriented autorouter is disclosed for routing nets in a circuit. The object oriented autorouter includes a routing data model (RDM); at least one routing engine, such as a single connection router (SCR), a topographical (TOPO) transformation engine, and a detail geometric (DETAIL) engine, and a command and control module (CCM) coupled together. The RDM reads and write data with a design database as well as reading one or more object oriented design constraints. Each of the routing engines have at least one action to operate on the design database to improve compliance of the circuit to a constraint. The CCM controls the overall routing process of the nets in the circuit and includes at least one director to invoke at least one of the routing engines to achieve compliance with one or more constraints.

Systems for automatic circuit routing with object oriented constraints

Circuit autorouter with object oriented constraints

Growing community of inventors

Windham, NH, United States of America

Davis Tsai