Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With rotor
Patent
1989-05-15
1990-10-30
Karlsen, Ernest F.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
With rotor
324158D, 324158T, 357 55, 437 8, G01R 3100
Patent
active
049671464
ABSTRACT:
Precisely controlled grooves are formed in a semiconductor wafer as part of a total photolithographic process of producing the circuitry and the V-grooves for precise registration of the circuitry relative the edges of the individual chips of the wafer. The same registration facilitates automated electrical testing of each of the chip circuits on the wafer prior to the controlled disassembly of the array of chips into individual die. The design of the electrical connections on the array before disassociation into individual die also facilitates a mass burn-in of the circuits which burn-in tends to identify and eliminate parts subject to early failure.
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Miller Robert O.
Morgan Peter J.
Burns William J.
Hamann H. Fredrick
Karlsen Ernest F.
Lutz Bruce C.
Rockwell International Corporation
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