×

Dynamic offset and feedback threshold

  • US 20050267607A1
  • Filed: 04/08/2005
  • Published: 12/01/2005
  • Est. Priority Date: 05/28/2004
  • Status: Active Grant
First Claim
Patent Images

1. A computer-implemented method for determining a process threshold for a process model in a manufacturing process, comprising the steps of:

  • (a) inputting a model for a manufacturing process having at least one control parameter that predicts a value for a product characteristic and that sets a process threshold for modifying the model;

    (b) receiving an observed value for at least one product and determining a variance between the observed value and the predicted variable;

    (c) determining a value for uncontrollable error from the variance; and

    (d) using the value for uncontrollable error to update the process threshold of the model.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×