Patent ID: 6218849
Filing Date: 2001-04-17
Classification: G01R

Abstract:
An IC testing apparatus including a handler which successively mounts an IC to be tested on an IC socket and which moves the tested IC away therefrom, comprisinga socket guide detachably mounted on the handler;an IC socket centrally mounted on the socket guide and on which an IC to be tested is mounted;projected light guide means having a light incident end located on the peripheral edge of the socket guide for guiding incident light and radiating light through a space that is occupied by the IC to be tested when the IC is mounted on the socket;received light guide means having a light incident end located adjacent to the peripheral edge of the IC socket to receive the light that has passed through the space that is occupied by the IC when the IC is mounted, for guiding the received light and having a light radiating end through which the received light is radiated at the peripheral edge of the socket guide;light projector means secured to the handler and having a light projecting end which is spaced from and opposes the light incident end of the projected light guide means;and light receptor means secured to the handler and having a light receiving end which is spaced from and opposes the light radiating end of the received light guide means.