Patent ID: 9558314
Date: 2017-01-31
CPC Classifications: G06F

Claim:
1. A method of designing a circuit layout, the method comprising: calculating a typical value representing performance characteristics for the circuit layout based on a graphic database system (GDS) file; calculating an adjustment value based on the GDS file and at least one of a CAP corner vector or a RES corner vector, wherein the CAP corner vector is based on an eigenvector of a parasitic capacitance of the circuit layout, and the RES corner vector is based on an eigenvector of a parasitic resistance of the circuit layout; calculating a corner value based on the typical value and the adjustment value; creating at least one photomask based on the GDS file if the performance characteristics of the corner value satisfy the performance requirements of the circuit layout; and modifying the GDS file if performance characteristics of the corner value fail to satisfy performance requirements of the circuit layout.