Patent Document ID: 8028267
Application ID: 12124435
Patent Flag: 1

Claim One:
1. A pattern designing method, when executed, causes a processor to perform the steps of: acquiring circuit design data, said circuit design data present, at least in part, in a technology file; carrying out, via the processor, a transfer simulation calculation and a step simulation calculation by using physical layout data produced from the circuit design data; comparing, via the processor, results of the transfer simulation calculation and the step simulation calculation with a preset standard; carrying out, via the processor, calculation of electrical characteristics by using parameters obtained from the physical layout upon determining that the preset standard is fulfilled as a result of the comparison, and carrying out calculation of the electrical characteristics in which the result of the transfer simulation calculation and the step simulation calculation are reflected in the parameters upon determining that the preset standard is not fulfilled as a result of the comparison; and updating, via the processor, the technology file in accordance with the comparison when the preset standard is not fulfilled, said updating occurring prior to the calculation for electrical characteristics.