Patent ID: 8147129
Filing Date: 2012-04-03
Classification: G01D,G01J

Abstract:
1. An apparatus for use with automatic testing equipment for testing infrared sensors on integrated circuits, the apparatus comprising: an infrared source; a heat mass, thermally coupled to the infrared source, heated to a heat mass temperature; an electronic frequency modulator, coupled to the infrared source, wherein the electronic frequency modulator modulates the infrared source according to a predetermined test frequency, and wherein the infrared source emits an infrared test signal representative of a test temperature, the infrared test signal corresponding to the heat mass temperature and the predetermined test frequency; a signal processor, electrically coupled to an integrated circuit having an infrared sensor, wherein the signal processor receives a sensed signal from the infrared sensor in response to the infrared test signal and the signal processor uses the sensed signal according to the predetermined test frequency to determine a measured temperature.