Patent ID: 6925706

Claim:
An index head assembly for a semiconductor device test handler, comprising: a carrier base configured to be fixed to a transfer device of the handler; an elevating carrier movably coupled to the carrier base and configured to be raised and lowered relative to the carrier base; an elevating device configured to raise and to lower the elevating carrier relative to the carrier base; a head holder movably coupled to a lower portion of the elevating carrier via at least one guide member and configured to move in a vertical direction relative to the elevating carrier; and a plurality of heads fixed to the head holder, wherein each of the plurality of heads comprises: a holding part configured to hold a semiconductor device with a vacuum force; a heating part positioned on an upper portion of the holding part and configured to generate and to transfer heat directly to the semiconductor device when the semiconductor device is mounted in a test socket of the handler; and a compliance part positioned on an upper portion of the heating part and configured to properly align the semiconductor device held by the holding part and the test socket.