Patent ID: 7106086

Claim:
A method for testing electronic devices comprising the steps of: a) providing a plurality of electronic devices having n-type and p-type field effect transistors with short and long gate channel widths, and operational speed parameters; b) determining functionality of said devices at nominal operating conditions; c) segregating said devices by measuring said operational speed parameters; d) applying a stress test to said devices wherein test conditions of said stress test are adjusted based on said operational speed measurements of said devices, such that a first voltage at a value higher than the device normal operating voltage is applied to said devices with a first measured operational speed, and a second voltage at a value lower than said first voltage is applied to said devices with a second measured operational speed, said first operational speed being less than said second operational speed; e) determining functionality of said devices at nominal operating conditions after said stress test; and f) classifying said devices as failed if said devices do not function properly after said stress test.