Patent ID: 8166434

Claim:
A non-transitory machine readable medium containing executable computer program instructions which when executed by a data processing system cause the data processing system to perform a method of designing an integrated circuit (IC), the method comprising: generating a representation of a shielding mesh in at least one layer of a representation of a design of the IC, the shielding mesh having a first plurality of lines which are designed to provide a first reference voltage and having a second plurality of lines which are designed to provide a second reference voltage and wherein the shielding mesh comprises a window in which signal lines are routed with less shielding than signal lines which are routed in the shielding mesh; and generating a representation of power supply lines in at least a first layer of the representation of the IC, the first layer containing the representation of the power supply lines being different than the at least one layer which contains the shielding mesh, the power supply lines being coupled to the shielding mesh and being larger in width than the first plurality of lines and the second plurality of lines.