Patent ID: 8732641
Filing Date: 2014-05-20
Classification: G06F

Abstract:
1. A method of RC extraction utilizing pattern-matching, comprising: analyzing a layout with a pattern-matching tool configured to partition the layout into a plurality of patterns determining that a first respective pattern of the plurality of patterns does not have a corresponding first reference pattern stored in a pattern database with the pattern-matching tool determining that a second respective pattern of the plurality of patterns does have a corresponding second reference pattern and associated second extraction parameters stored in the pattern database with the pattern-matching tool; performing extraction on the first respective pattern to obtain associated first extraction parameters with an extraction tool; applying second extraction parameters to the second respective pattern from the pattern database; identifying one or more first stitch-nodes of the first respective pattern, wherein a first stitch-node comprises a location on a first shape of the first respective pattern where one or more first extraction parameters are assigned; and identifying one or more second stitch-nodes of the second respective pattern, wherein a second stitch-node comprises a location on a second shape of the second respective pattern where one or more second extraction parameters are assigned.