Dual function cam-ring system for DUT board parallel electrical

Details Dual function cam-ring system for DUT board parallel electrical Dual function cam-ring system for DUT board parallel electrical

1991-02-11

1991-11-26

Abrams, Neil

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With rotor

439141, 439331, G01R 3102

Patent

active

050686011

ABSTRACT:
A dual-function DUT board connection and disconnection and prober/handler docking system is easy to use and provides high quality parallel electrical interconnection for a large number of signals by exerting a proper amount of pressure over a large but variable connection area with a high degree of reliability. A cam-ring is rotatably mounted to a load board. A DUT board, a DUT board holddown ring with cam followers and (optional) layers of pin-protecting plastic rings are aligned by two alignment pins on the load board into a correct position for mating of electrical connections between the load board and the DUT board. Rotation of the cam-ring by attached handles forces cam followers on the DUT board holddown ring to be drawn closer to the load board, bringing the DUT board into suitable electrical contact with connectors that electrically connect the DUT board to the load board. A set of secondary cams and external guide pins is provided for easy docking to suitably equipped wafer probers or device package handlers.

REFERENCES:
patent: 3757219 (1973-09-01), Aksu
patent: 4225819 (1980-09-01), Grau et al.
patent: 4230985 (1980-10-01), Matrone et al.
patent: 4405191 (1983-09-01), Fetig
patent: 4626776 (1986-12-01), Wilkinson
patent: 4665360 (1987-05-01), Phillips
patent: 4667155 (1987-05-01), Coiner et al.
patent: 4782289 (1988-11-01), Schwar et al.
patent: 4843313 (1989-06-01), Walton
patent: 4857009 (1989-09-01), Christensen

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