Mercury probes

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With rotor

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Details

324158P, 339118R, G01R 106, G01R 3126, H01R 304

Patent

active

045217300

ABSTRACT:
The disclosed mercury probe has one or more mercury reservoirs and one or more passages extending from the reservoir(s) to an aperture plate for engaging a test wafer. Dross that tends to form at the wafer-contact end of the mercury passage(s) is removed by returning all of the mercury in the passage(s) into the reservoir, where the dross is captured. Means is provided to introduce electrical insulation between the reservoir(s) and the aperture(s) of the aperture plate, for disconnecting the mercury probe segment(s) of the mercury from the reservoir(s) and, where there are plural mercury probe segments, for disconnecting them from each other and from their reservoir(s).

REFERENCES:
patent: 3794912 (1974-02-01), Severin et al.
patent: 4101830 (1978-07-01), Greig
Koens, J. G.; "Micromanipulator . . . "; IBM Tech. Dis. Bull.; vol. 15; No. 1; Jun. 1972; p. 334.
"Part No. 1001"; Management Development Corp., p. 1.

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