Patent ID: 8319961
Filing Date: 2012-11-27
Classification: G01N,G01R

Abstract:
1. A semiconductor package testing apparatus comprising: a vertical illuminator to illuminate a measurement target of a measured device from a vertical direction parallel to a length axis of the measured device; an inclined illuminator to illuminate the measurement target at an inclined angle with respect to the length axis of the measured device, the inclined illuminator having a hemispheric dome shape having an inner surface on which a plurality of LEDs are mounted, and having a central opening to allow light from the inclined illuminator to travel to the measurement target and to allow light reflected by the measurement target to pass through the central opening; a vertical image capture unit to capture an image of the measurement target from light travelling vertically directly from the measurement target; and an inclined image capture unit to capture an image of the measurement target from light travelling at an inclined angle with respect to the length axis of the measured device immediately upon being reflected from the measurement target.