Patent ID: 7936589
Filing Date: 2011-05-03
Classification: G11C

Abstract:
1. A method for setting an operating voltage for an SRAM memory device based on one or more measurable test structure characteristics that predict a functionality of an SRAM array, comprising: modeling or simulating a relation of one or more parameters and voltages of the SRAM array to the statistical distribution of the SRAM array operational parameters (functionality) to provide predictions of the SRAM functionality as a function of the parameters and operating voltage of the SRAM array and to identify and to select from among the one or more parameters, which substantially correspond to the predictions; determining a test structure that has measurable characteristics that correlate to the parameters predictive of the SRAM functionality as a function of operating voltage; correlating the measurable characteristics of the test structure to the functionality of the SRAM as a function of operating voltage; and determining and setting the operating voltage for the SRAM array based upon the predicted functionality of the SRAM array.