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Method and apparatus for monitoring tool health

  • US 6,594,589 B1
  • Filed: 05/23/2001
  • Issued: 07/15/2003
  • Est. Priority Date: 05/23/2001
  • Status: Active Grant
First Claim
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1. A method for monitoring health of a tool, comprising:

  • receiving at least one measured tool parameter related to the processing of a workpiece in a tool;

    receiving a model selection trigger;

    selecting a tool health model based on the model selection trigger;

    generating at least one predicted tool parameter based on the selected tool health model and the measured tool parameter; and

    generating a tool health rating for the tool based on a comparison between the measured tool parameter and the predicted tool parameter.

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