COMBINATION 16/32 PARA AND TRACK, AND A SOCKET GUIDE, SPECIALLY CONCERNED WITH REMARKABLY REDUCING A REPLACING WORK TIME BY REPLACING A TEST BOARD ONLY IN A TEST UNIT EVEN THOUGH THE SIZE OF A SEMICONDUCTOR CHIP PACKAGE IS CHANGED DURING A TEST

摘要

PURPOSE: A combination 16/32 para and track, and a socket guide are provided to enable a track of a test unit to receive various sizes of semiconductor chip packages, thereby reducing a replacing work time of the test unit and preventing the semiconductor chip packages from horizontally moving in mounting portions of the track. CONSTITUTION: A combination 16/32 para and track(150) consists of a lower rail(156) and an upper rail(154) for transferring semiconductor chip packages(105). 4 mounting portions(157) where the semiconductor chip packages(105) are mounted exist on the one track(150). Stopper pins(158) for arraying the semiconductor chip packages(105) in the mounting portions(157) are fixed in one position. Carriers(160) are formed to prevent the semiconductor chip packages(105) from horizontally moving by a collision with the stopper pins(158) when the freely dropping semiconductor chip packages(105) are mounted in the mounting portions(157).