Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With rotor
Patent
1988-08-18
1989-10-03
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
With rotor
324 73AT, 324158P, G01R 102, G01R 104
Patent
active
048719650
ABSTRACT:
An environmental testing facility for verifying operational conditions of electronic components at predefined temperature extremes is described. A removable multistation holder is configured to have a plurality of components coupled thereto. The multistation holder is coupled to a controllable, rotatable shaft. A hood is placed over the holder, shaft and associated apparatus and placed in contact with a base plate, so that a vacuum can be established in the resulting chamber. A sensing device permits the positioning of the individual components with respect to an interface apparatus. When the component is correctly positioned with respect to the interface apparatus, the interface apparatus is moved to engage the terminals of the components. The electrical signals can be applied to and received from the component through the interface device. After a first temperature condition is established for the multistation holder and consequently for the components coupled thereto, all of the components are tested. Thereafter, the components are tested at the second temperature condition. The testing apparatus is operated under control of data processing circuits that can apply and receive signals from the components for operation evaluation and can automatically position the components with respect to the interface apparatus, and can provide appropriate signals for a sequence of the testing procedure.
REFERENCES:
patent: 2773731 (1952-11-01), Chick et al.
patent: 3807216 (1974-04-01), Lindwedel et al.
patent: 4532423 (1985-07-01), Tojo et al.
patent: 4604572 (1986-08-01), Horiuchi et al.
"Fiber Optic Sensor for Testing and Sorting Semiconductor Devices", by Beldring et al., Western Electric Tech Dig., 1/74, #33, pp. 11-12.
Elbert Hubert F.
March-Force Gary
Apex Microtechnology Corporation
Burns W.
Eisenzopf Reinhard J.
Holloway William W.
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