Patent ID: 8354854
Filing Date: 2013-01-15
Classification: G01R

Abstract:
1. In a microcircuit test interface having i) a load board supporting a plurality of traces arranged in a predetermined pattern and for connection to circuitry for testing operation of a microcircuit comprising a device under test (DUT) having a plurality of leads, ii) a test contact guide having a plurality of adjacent planar slots in alignment with the traces, each for receiving a contact element for electrically connecting a lead on a DUT to a trace on a load board, iii) a resilient element within the slots, and iv) first and second rigid conductor layers in at least one slot of the test contact guide and slidable therein, said first and second conductor layers each to make electrical contact with both a load board trace and a DUT lead, each of the first and second conductor layers receiving force from the resilient element urging a contact point on each of the conductor layers into direct mechanical and electrical contact with both a trace and a DUT lead, and an insulation layer between said first and second contacts in the at least one slot, said insulation layer electrically insulating the first and second conductor layers from each other within the at least one slot, wherein contact points on the conductor layers press against a lead on the DUT, and wherein the insulation layer is recessed relative to those contact points pressing against the lead on the DUT.