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AUTOMATED FAULT ANALYSIS AND RESPONSE SYSTEM

  • US 20120154149A1
  • Filed: 12/19/2011
  • Published: 06/21/2012
  • Est. Priority Date: 12/17/2010
  • Status: Active Grant
First Claim
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1. A process for determining a root cause problem for an out-of-tolerance component manufactured by a plurality of operations performed on the component, the process comprising:

  • providing manufacturing data from at least a subset of the plurality of operations performed on a plurality of components manufactured by the plurality of operations;

    discovering an out-of-tolerance measurement on at least a subset of the plurality of manufactured components downstream from the plurality of operations using the manufacturing data;

    performing an auto-regression analysis between the out-of-tolerance measurement and the plurality of upstream operations using the manufacturing data; and

    finding a correlation between at least one of the upstream operations and the out-of-tolerance measurement, the correlation identifying at least one upstream operation that is the root cause of the out-of-tolerance measurement.

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