Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With rotor
Patent
1988-02-22
1990-05-15
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
With rotor
324158R, 738656, 209573, G01R 3128, B07C 5344
Patent
active
049261185
ABSTRACT:
A station for testing electrical devices under elevated and depressed temperature conditions, said devices being transported through and tested in the station while held in coordinated planar sets. The planarly arranged sets of devices are sequentially placed upon a platen movable along three mutually orthogonal axes. A test head has a plurality of electrical device contactors in planar arrangement corresponding to the arrangement of the devices sets. At least one axis along which the platen moves is orthogonal to a general plane of the contactors for establishing parallel contact between the devices and the contactors. During testing each of the leads of the devices resting upon the platen are electrically contacted by a contactor. The leads of the full set of electrical devices can be contacted simultaneously, or the leads can be contacted in subsets depending upon the capacity of the test head. The test head energizes and stimulates the electrical devices, and the responses of the devices are communicated to a tester via the test head. Prior to being deposited upon the platen, the planarly arranged sets of electrical devices are conveyed through a chamber which elevates or depresses the temperature of the devices to a selected testing temperature. Following testing, the sets of electrical devices are conveyed through a chamber which brings the temperature of the devices back to or near equilibrium with the temperature ambient to the test center.
REFERENCES:
patent: 3094212 (1963-06-01), Moore et al.
patent: 3209907 (1965-10-01), Wiesler et al.
patent: 3408565 (1968-10-01), Frick et al.
patent: 3664499 (1972-05-01), Sahakian
patent: 3996517 (1976-12-01), Fergason et al.
patent: 4694964 (1987-09-01), Ueberreiter
patent: 4695707 (1987-09-01), Young
patent: 4755746 (1988-07-01), Mallory et al.
Schorr et al., "Chip Handler Apparatus for Testing Semiconductor Devices", IBM Technical Disclosure Bulletin, vol. 20, No. 3, Aug. 1977, pp. 1100-1101.
O'Connor R. Bruce
Ross James A.
Toth Thomas E.
Eisenzopf Reinhard J.
Nguyen Vinh P.
Sym-Tek Systems, Inc.
Tighe Thomas J.
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