Intelligent binning for electrically repairable semiconductor ch

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G06F 1100

Patent

active

057646503

ABSTRACT:
The present invention relates to a system and method for testing one or more semiconductor devices (e.g. packaged chips). Test equipment performs at least tests of a first type on the semiconductor device and identifies failures in the semiconductor device, if any. A number of failures is determined. In the case where there are some failures, decision circuitry determines whether it is more efficient to repeat the tests or repair the semiconductor device, if it is repairable. The semiconductor device may be binned differently depending on the number of identified failures. The decision circuitry may designate the semiconductor device for an additional procedure, if the number of the identified failures is within a first number set. The decision circuitry may designate the semiconductor device for repair, if the number of the identified failures is within a second number set. The decision circuitry designate the semiconductor device for additional tests of the first type, if the number of the identified failures is within a third number set. The tests of a first type may be a hot sort procedure and the additional tests may be a cold final procedure.

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patent: 4460999 (1984-07-01), Schmidt
patent: 4584681 (1986-04-01), Singh et al.
patent: 4736373 (1988-04-01), Schmidt
patent: 5210704 (1993-05-01), Husseiny
patent: 5483175 (1996-01-01), Ahmad et al.
patent: 5502397 (1996-03-01), Buchanan

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