Patent ID: 7705608
Filing Date: 2010-04-27
Classification: G01R

Abstract:
1. A method for use with an integrated circuit that is light-sensitive, the method comprising: applying different wavelengths of light to the integrated circuit, the integrated circuit producing output signals in response to the different wavelengths of light, the integrated circuit comprising a storage medium, the storage medium comprising at least one of a Zener diode, a fuse, or an electrically erasable programmable read-only memory; measuring the output signals to obtain measured values; comparing the measured values to setpoint values that correspond to the different wavelengths of light; obtaining correction values for the different wavelengths of light, the correction values being based on comparison of the measured values to the setpoint values; and storing the correction values on the storage medium of the integrated circuit; wherein the integrated circuit is on a semiconductor substrate; wherein the method is performed using a testing card for integrated circuits; wherein testing needles form contacts between the testing card and the integrated circuit, and wherein the testing needles are for placement on contact areas of the integrated circuit for storing data on the integrated circuit; and wherein the different wavelengths of light are applied via light-emitting diodes that are mounted atop the testing card.