Translator fixture with module for expanding test points

Details Translator fixture with module for expanding test points Translator fixture with module for expanding test points

1996-02-01

1997-05-27

Nguyen, Vinh P.

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

324754, G01R 3128

Patent

active

056335989

ABSTRACT:
A translator fixture for a grid-type test fixture for testing circuit boards. In regions of the circuit board where test point density exceeds the grid spacing of probes in a grid base the test points are reached by a test module that plugs into the translator fixture and includes a grid pattern of feed-through probes for contacting special tilt pins connected to certain test points in the high density region of the board. Additional test probes, located between the rows and columns of feed-through probes, support special tilt pins for translating the remaining test points in the high density region of the board to contacts on flex circuit-type cables sandwiched on the module and extending to the periphery of the fixture for coupling to contacts on the grid base to communicate with test circuits in the test analyzer. In an alternate embodiment, a translator module providing an interface between the bottom of the translator fixture and the grid base includes a translator board overlying the grid base and translating test signals from a high density set of contacts on one side of the board to a standard pattern of contacts on the other side aligned with the test probes on the grid base. A receiver plate overlying the translator board receives tilt pins with a high density spacing and provides compliant connections to the high density pattern of contacts on the translator board.

REFERENCES:
patent: 4352061 (1982-09-01), Matrone
patent: 4724383 (1988-02-01), Hart
patent: 4833402 (1989-05-01), Boega-Peterson
patent: 4977370 (1990-12-01), Andrews
patent: 5134363 (1992-07-01), Dahlke
patent: 5204615 (1993-04-01), Richards
patent: 5216358 (1993-06-01), Vaucher
patent: 5304921 (1994-04-01), Cook et al.
patent: 5389885 (1995-02-01), Swart

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