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METHODS, SYSTEMS, AND COMPUTER PROGRAM PRODUCTS FOR PRODUCT RANDOMIZATION AND ANALYSIS IN A MANUFACTURING ENVIRONMENT

  • US 20080183321A1
  • Filed: 01/30/2007
  • Published: 07/31/2008
  • Est. Priority Date: 01/30/2007
  • Status: Active Grant
First Claim
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1. A method for implementing product randomization and analysis in a manufacturing environment, comprising:

  • processing products for a plurality of lots, at process equipment, using a randomization technique for selecting each product in the lots, the processing performed in accordance with a process recipe;

    generating an operation identification record for each operation in the process recipe, the generating including mapping, for each operation, a slot identifier associated with a randomly selected product to a process variable identifier, a process tool, and the operation;

    defining slot grouping using slot identifiers for a product carrier of each of the plurality of lots;

    identifying product yield patterns by analyzing historical yields for each of the slot groupings; and

    determining the frequency of occurrence of one or more product yield patterns for each operation in the process recipe by analyzing product yields from the operation identification records corresponding to the plurality of lots.

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