Patent ID: 7634849

Claim:
A method of making an electronics module, where said electronics module is to operate at one of a predetermined plurality of operating speeds, said method comprising: providing a plurality of integrated circuits; testing each of said integrated circuits to determine a maximum of said operating speeds at which each of said integrated circuits is capable of operating; sorting said integrated circuits into groups in accordance with said operating speeds; determining which of said groups includes sufficient integrated circuits for at least one electronics module; selecting one of said determined groups; assembling an electronics module by demountably attaching integrated circuits from said selected group to a module substrate; testing said demountably assembled module at an operating speed corresponding to said selected group; if said module fails said testing at said operating speed: removing at least one of said integrated circuits determined to have caused said failure from said module substrate, replacing said at least one removed integrated circuit with another integrated circuit from said selected group, and repeating said testing step at said operating speed and, if said module again fails said testing, repeating said removing, replacing, and repeating steps.