Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With rotor
Patent
1992-12-24
1995-09-05
Karlsen, Ernest F.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
With rotor
324754, 371 251, G01R 3128
Patent
active
054481643
ABSTRACT:
Apparatus for testing integrated circuit packages has a test circuit, a socket for receiving a standard circuit representing the packages being tested, and a special contact assembly for coupling to the packages being tested. Two sets of contacts in the assembly are permanently connected to the socket and the test circuit respectively, and one set is movable to connect with the other set or to terminals of a package being tested. A handler inserts the packages one at a time into the contact assembly and moves the movable set of contacts into circuit engagement with the package, and then the package is tested by the test circuit. The handler removes the package from the contact assembly and allows the movable set of contacts to engage the other set so that the standard circuit can be tested to verify that the test circuit is functioning correctly. Base data taken on the standard circuit is used to establish a significance band and data periodically taken on the standard circuit is compared with the significance band to determine the amount of drift in the test circuit.
REFERENCES:
patent: 2122499 (1938-07-01), Stocker
patent: 2171216 (1939-08-01), Koch
patent: 2851660 (1958-09-01), Tobin et al.
patent: 3039604 (1962-06-01), Bickel et al.
patent: 3665504 (1972-05-01), Silverman
patent: 4656417 (1987-04-01), Kirkpatrick et al.
patent: 4762663 (1988-08-01), Cook et al.
patent: 4965865 (1990-10-01), Trenary
patent: 5041782 (1991-08-01), Marzan
patent: 5055778 (1991-10-01), Okubo et al.
patent: 5066907 (1991-11-01), Tarzwell et al.
patent: 5084673 (1992-01-01), Kazama
1971 Tektronix Catalog; Tektronix, Inc., Beaverton, Or.; pp. 281-283; 1971.
Copp David A.
Denton Gary N.
Garrison Timothy B.
Selley Frederick W.
Vote John D.
Delco Electronics Corp.
Funke Jimmy L.
Karlsen Ernest F.
Wallace Robert J.
LandOfFree
Electrical test apparatus and method of checking the apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electrical test apparatus and method of checking the apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrical test apparatus and method of checking the apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-474636