Patent ID: 7676769

Claim:
A method, comprising: accessing at a computer processor first test data comprising a first plurality of parameter measurement values, each of the first plurality of parameter measurement values associated with a corresponding one of a first subset of semiconductor dies of a wafer comprising a first region and a second region, the first subset associated with the first region, wherein the first plurality of parameter measurements comprise parameter measurements of a first type, the first type selected from the group consisting of: quiescent current supply measurements, clock speed measurements, port input leakage measurements, and transistor threshold voltage measurements; determining at the computer processor a first parameter threshold for the first subset of semiconductor dies based on the first plurality of parameter measurement values and not based on a second plurality of parameter measurement values associated with the second region, the first parameter threshold comprising a first adaptive threshold associated with the first subset of semiconductor dies; determining at the computer processor a first qualification status of a first die of the first subset based on a relationship between the first parameter threshold and one of the first plurality of parameter measurement values corresponding to the first die; and storing at the computer processor a value representative of the first qualification status of the first die.