Patent ID: 8587331

Claim:
A process of testing DUTs in a test system comprising an aligner and test cells, said process comprising: positioning in said aligner a first DUT on a first carrier in an aligned position in which electrically conductive terminals of said first DUT are in a predetermined position with respect to carrier alignment features of said first carrier; clamping said first DUT on said first carrier in said aligned position; while said first DUT is clamped on said first carrier in said aligned position, loading said first carrier into a housing of a first one of said test cells, a guide mechanism in said housing guiding said first carrier into an initial position in which said carrier alignment features are uncoupled from but generally aligned with contactor alignment features of a first contactor comprising electrically conductive probes; while said first DUT is clamped on said first carrier in said aligned position and said first carrier is in said initial position in said housing of said first test cell, mechanically coupling said carrier alignment features of said first carrier with said contactor alignment features of said first contactor, said coupling aligning said terminals of said first DUT with said probes of said first contactor; and testing said first DUT in said first test cell by providing signals to and from said DUT through said first contactor.