Electronic card assembly fixture
AssigneeInternational Business Machines Corporation
InventorsWilliam E. Bunzey, Rodger A. Byers
Life of this patent
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Abstract
A test fixture is described which includes a camming assembly for eliminating misalignments in the probe testing of electronic card assemblies. The test fixture provides a pair of cams oppositely situated from the probes of a Side Access Unit (SAU). These cams are pneumatically actuated slightly prior to, or instantaneously with, the SAU. The actuation of the cams provides a mechanical stop with zero tolerance, so that the misalignment of test pads and probes, caused by the forward movement of the test probes, is eliminated.
Claims21
A test fixture for probe testing electronic cards, comprising:
- at least one test probe disposed adjacent an electronic card to be tested;
- a pair of opposer cams disposed adjacent an edge of said electronic card opposite to said at least one test probe, said opposer cams being actuated into pivotal contact with said edge of said electronic card;
- and
- actuating means connected to said at least one test probe and said opposer cams for causing both said at least one test probe and said opposer cams to thrust against said electronic card.
A test fixture for probe testing electronic cards, comprising:
- at least one test probe disposed adjacent an electronic card to be tested;
- a pair of pneumatically actuated opposer cams disposed adjacent an edge of said electronic card opposite to said at least one test probe, said opposer cams being pneumatically actuatable into pivotal contact with said edge of said electronic card;
- and
- pneumatic actuating means for causing both said at least one test probe and said opposer cams to thrust against said electronic card, said pneumatic actuating means defining a pneumatic circuit with said at least one test probe and said opposer cams.
A test fixture for probe testing electronic cards, comprising:
- at least one test probe disposed adjacent an electronic card to be tested;
- a pair of opposer cams disposed adjacent an edge of said electronic card opposite to said at least one test probe, said opposer cams being actuated into pivotal contact with said edge of said electronic card, and being retractable therefrom;
- and
- actuating means for causing both said at least one test probe and said opposer cams to thrust against said electronic card.
Dependencies are inferred from the claim text.