Method for qualifying biased integrated circuits on a wafer leve

Metal working – Method of mechanical manufacture – Assembling or joining

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Details

29583, 29591, 250492A, 324158T, H01L 2166, H01L 21423

Patent

active

042889111

ABSTRACT:
Integrated circuits in dice on a wafer are qualified by providing two sets of conductors connected to each die by fusible elements, biasing the dice using said conductors during exposure to a qualifying environment, testing the fusible elements, removing the conductors and testing the circuits. Where the environment is gamma radiation, the fusible elements are tested before annealing of radiation damage and the circuits are tested before and after annealing.

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patent: 3769693 (1973-11-01), Cates et al.
patent: 3849872 (1974-11-01), Hubacher
patent: 4032949 (1977-06-01), Bierig
patent: 4172228 (1979-10-01), Gauthier et al.
patent: 4220918 (1980-09-01), Pepper

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