Test head for integrated circuit tester arranging tester compone

Details Test head for integrated circuit tester arranging tester compone Test head for integrated circuit tester arranging tester compone

1997-05-23

2000-03-21

Ballato, Josie

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With rotor

324754, G01R 3102

Patent

active

060406917

ABSTRACT:
A test head for an integrated circuit tester includes a horizontal base holding a motherboard. The motherboard distributes test instructions to an array of daughterboards mounted thereon, the daughterboards being radially distributed about a central vertical axis of the motherboard. Each daughterboard holds a set of node cards and includes data paths for forwarding the test instructions from the motherboard to the node cards. Each node card contains circuits for transmitting test signals to and receiving response signals from a separate terminal of a device under test (DUT) in response to the test instructions forwarded thereto. Edges of the daughterboards extend downward through apertures in the base to contact pads on an interface board holding the DUT. The daughterboards provide conductive paths for the test and response signals extending between the node cards and pads on the DUT interface board. The interface board extends those conductive paths from the pads to terminals of the DUT.

REFERENCES:
patent: 4517512 (1985-05-01), Petrich et al.
patent: 4788496 (1988-11-01), Maelzer et al.
patent: 4996478 (1991-02-01), Pope
patent: 5329226 (1994-07-01), Monnet et al.
patent: 5546405 (1996-08-01), Golla
patent: 5747994 (1998-05-01), Suga
patent: 5754057 (1998-05-01), Hama et al.

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