Mercury probe and method

Details Mercury probe and method Mercury probe and method

1981-01-19

1983-10-11

Karlsen, Ernest F.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With rotor

324158F, 339118R, G01R 106, G01R 3122, H01R 304

Patent

active

044095465

ABSTRACT:
The disclosed mercury probe has a mercury reservoir and one or more passages extending from the reservoir 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 air into the passage(s) between the reservoir and the aperture(s) of the aperture plate, for disconnecting the mercury-probe segment(s) of the mercury from the reservoir and, where there are plural mercury-probe segments, for disconnecting them from each other.

REFERENCES:
patent: 3794912 (1974-02-01), Severin et al.
patent: 4101830 (1978-07-01), Greig
NDT International, "Testing Wafers is Easy", vol. 10, No. 1, Feb. 1977, p. 41.
Koens, J. G., "Micromanipulator . . . ", IBM Tech. Dis. Bull., vol. 15, No. 1, Jun. 1972, p. 344.

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