Patent ID: 7721237

Claim:
A machine-implemented method for performing closure for an electronic circuit design of an electronic circuit, comprising: identifying the electronic circuit design for an electronic circuit to be manufactured by a first manufacturing process; identifying a first concurrent model for the first manufacturing process for a first level of the electronic circuit; determining a first metric of the first level based at least in part upon a first geometric characteristic of a first feature determined by the first concurrent model, wherein the first feature comprises a circuit component of the electronic circuit; determining whether a first closure requirement for the first level is satisfied based at least in part upon the first geometric characteristic or the first metric, wherein the act of determining the first metric or the act of determining whether the first closure requirement for the first level is satisfied is performed by a processor; preventing a variation of the first geometric characteristic from propagating to a second level of the electronic circuit by reducing one or more violations of the closure requirement on the first level, wherein the violations of the closure requirement on the first level are caused at least in part by the variation; and displaying the first geometric characteristic of the first level on a display apparatus or storing the first geometric characteristic in a tangible machine accessible medium or a storage device.