Patent ID: 7783466
Filing Date: 2010-08-24
Classification: G06F

Abstract:
1. A method comprising: measuring a characteristic of an integrated circuit (IC) chip at a plurality of temperatures; modeling to form a hardware model for the characteristic versus temperature based on the measuring; obtaining a known first target value of the characteristic for at least one temperature in the hardware model; determining a plurality of second target values for the characteristic for a corresponding plurality of temperatures in the hardware model, wherein in the case that the characteristic is threshold voltage, the determining includes calculating each second target value according to the following: Vt_target(T)=Vt_target(T where J(T) is the second target value for the above-threshold current at a temperature T at which the second target value for the above-threshold current is to be determined and at which a value exists for the above-threshold current in the hardware model, J(T where Id is a drain current and Vg is a gate bias; and modeling to form a target model for the characteristic based on the first known target value and the plurality of second target values.