Patent ID: 8346528
Filing Date: 2013-01-01
Classification: G06F

Abstract:
1. A method, in a data processing system, for modeling a plurality of devices of an integrated circuit design as a single statistically equivalent wide device, comprising: storing an integrated circuit design in a storage device associated with the data processing system; analyzing, by a processor of the data processing system, the integrated circuit design to identify a portion of the integrated circuit design having the plurality of devices; generating, by the processor, for the plurality of devices, a statistical model of a single statistically equivalent wide device having a statistical distribution of at least one operating characteristic of the single statistically equivalent wide device that captures statistical operating characteristic distributions of individual devices in the plurality of devices, wherein at least one statistical operating characteristic of the single statistically equivalent wide device is a complex non-linear function of the statistical operating characteristics of the individual devices; and modeling, by the data processing system, the integrated circuit design using the single statistically equivalent wide devices wherein modeling the integrated circuit using the single statistically equivalent wide device comprises replacing the plurality of devices in the identified portion of the integrated circuit design with the single statistically equivalent wide device and modeling the integrated circuit design as a whole including the single statistically equivalent device; wherein the complex non-linear function of the statistical operating characteristics of the individual devices comprises a leakage current function for the single statistically equivalent wide device as follows: where Ileak wide device is a single statistically equivalent wide device leakage current, m is the number of individual devices in the plurality of devices, w is a width of the individual devices in the plurality of devices, C is a constant for the single statistically equivalent wide device determined based on an empirical model, ΔVt−eqv is an equivalent threshold voltage variation on the single statistically equivalent wide device required to match the single statistically equivalent wide device leakage current to that of the individual devices in the plurality of devices, e