Test fixture for electronic circuit boards

Details Test fixture for electronic circuit boards Test fixture for electronic circuit boards

1992-11-05

1994-11-22

Nguyen, Vinh

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With rotor

324754, G01R 3102

Patent

active

053672526

ABSTRACT:
A test fixture for electronic circuit boards includes a contact carrier plate and a pressure plate. The contact carrier plate is provided with contact pins projecting through holes of the pressure plate, in order to contact a circuit board to be tested. Upon the appliance of vacuum, the pressure plate, together with the circuit board under test, is sucked against the contact pins. The invention provides essentially flat contact between the circuit board under test and the pressure plate. For this purpose, no seal rests on top of the pressure plate, or at least a resilient seal which is completely compressed upon the appliance of vacuum. The invention demonstrates that, in contrast to the prior art, it is thus possible to achieve sufficient sealing.

REFERENCES:
patent: 4017793 (1977-04-01), Haines
patent: 4230985 (1980-10-01), Matrone et al.
patent: 4583042 (1986-04-01), Riemer
patent: 4626776 (1986-12-01), Wilkinson
patent: 4780086 (1988-10-01), Jenner et al.

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