Patent ID: 7482825

Claim:
A system for testing integrated circuit (IC) packages, comprising: a plurality of IC testing socket bases arranged on a testing board and configured to receive a plurality of IC packages; a plurality of IC testing socket lids arranged to attach to the testing board, each IC testing socket lid comprising: a temperature sensor arranged to thermally contact a corresponding IC package and measure a temperature of the IC package; a heater or cooler arranged to directly contact the corresponding IC package; and an electronic controller arranged to receive signals from the temperature sensor, wherein the electronic controller is programmed to change the temperature of the heater or cooler responsive to the measured temperature of the corresponding IC package; each IC testing socket lid including a top attach plate adapted to attach to the testing board and each IC testing socket lid further comprising: a sensor housing containing the temperature sensor and composed of a thermally conductive material to physically contact the IC package and to physically isolate the temperature sensor from the IC package; an insulating material surrounding the sensor housing to thermally isolate the temperature sensor from the heater or a cooler; and the sensor housing having a blind bore having an end adjacent to the corresponding IC package, in which the temperature sensor is contained.