Supervisory method for determining optimal process targets based on product performance in microelectronic fabrication
First Claim
Patent Images
1. A method of manufacturing, the method comprising:
- processing a workpiece in a processing step;
measuring a parameter characteristic of the processing performed on the workpiece in the processing step;
performing a parameter characteristic modeling process in response to the measuring the parameter characteristic;
forming an output signal based upon the parameter characteristic modeling process; and
setting a target value as a feedback for the processing performed in the processing step based on the output signal.
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Abstract
A method is provided. for manufacturing, the method including processing a workpiece in a processing step, measuring a parameter characteristic of the processing performed on the workpiece in the processing step, and forming an output signal corresponding to the characteristic parameter measured. The method also includes setting a target value for the processing performed in the processing step based on the output signal.
115 Citations
37 Claims
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1. A method of manufacturing, the method comprising:
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processing a workpiece in a processing step;
measuring a parameter characteristic of the processing performed on the workpiece in the processing step;
performing a parameter characteristic modeling process in response to the measuring the parameter characteristic;
forming an output signal based upon the parameter characteristic modeling process; and
setting a target value as a feedback for the processing performed in the processing step based on the output signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of manufacturing, the method comprising:
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processing a workpiece in first and second processing steps;
measuring parameters characteristic of the processing performed on the workpiece in the first and second processing steps;
performing a parameter characteristic modeling process in response to the measuring the parameter characteristic;
forming an output signal based upon the parameter characteristic modeling process; and
setting a target value for the processing performed in at least one of the first and second processing steps based on the output signal. - View Dependent Claims (12, 13, 14, 15)
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16. A method of manufacturing, the method comprising:
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processing a workpiece in a plurality of processing steps;
measuring parameters characteristic of the processing performed on the workpiece in the plurality of processing steps after the workpiece has been completely processed;
performing a parameter characteristic modeling process in response to the measuring the parameter characteristic;
forming an output signal based upon the parameter characteristic modeling process; and
setting a target value for the processing performed in at least one of the plurality of processing steps based on the output signal. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A computer-readable, program storage device, encoded with instructions that, when executed by a computer, perform a method for manufacturing a workpiece, the method comprising:
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processing a workpiece in a processing step;
measuring a parameter characteristic of the processing performed on the workpiece in the processing step;
performing a parameter characteristic modeling process in response to the measuring the parameter characteristic;
forming an output signal based upon the parameter characteristic modeling process; and
setting a target value for the processing performed in the processing step based on the output signal.
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36. A computer programmed to perform a method of manufacturing, the method comprising:
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processing a workpiece in a processing step;
measuring a parameter characteristic of the processing performed on the workpiece in the processing step;
performing a parameter characteristic modeling process in response to the measuring the parameter characteristic;
forming an output signal based upon the parameter characteristic modeling process; and
setting a target value for the processing performed in the processing step based on the output signal.
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37. An apparatus, comprising:
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means for processing a workpiece in a processing step;
means for measuring a parameter characteristic of the processing performed on the workpiece in the processing step;
means for performing a parameter characteristic modeling process in response to the measuring the parameter characteristic;
means for forming an output signal based upon the parameter characteristic modeling process; and
means for setting a target value as a feedback for the processing performed in the processing step based on the output signal.
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Specification