MULTIVARIATE FAULT DETECTION IMPROVEMENT FOR ELECTRONIC DEVICE MANUFACTURING
First Claim
1. A computer-implemented method comprising:
- assigning a sensor importance factor to one of a plurality of sensors, wherein the sensor importance factor indicates an importance of the one sensor relative to the plurality of sensors;
assigning a recipe step importance factor to one of a plurality of recipe steps, the one recipe step being associated with the one sensor, wherein the recipe step importance factor indicates an importance of the one recipe step relative to the plurality of recipe steps;
calculating an overall importance factor using the importance factor assigned to the one sensor and the importance factor assigned to the one recipe step associated with the one sensor; and
providing the overall importance factor for normalizing variables in generating multivariate model results.
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Abstract
An importance factor generator system for providing an overall importance factor to be used in normalizing variables for multivariate modeling. An importance factor generator system assigns a sensor importance factor (IF) to a sensor, where the sensor IF indicates the importance of the sensor relative to other sensors. The importance factor generator system assigns a recipe step IF to a recipe step, where the recipe step IF indicates the importance of the recipe step relative to other recipe steps. The importance factor generator system can calculate an overall IF using the sensor IF and recipe step IF and provide the overall IF to be used for normalizing variables for multivariate modeling results. The importance factor generator system can display the overall IF in a graphical user interface (GUI).
68 Citations
21 Claims
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1. A computer-implemented method comprising:
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assigning a sensor importance factor to one of a plurality of sensors, wherein the sensor importance factor indicates an importance of the one sensor relative to the plurality of sensors; assigning a recipe step importance factor to one of a plurality of recipe steps, the one recipe step being associated with the one sensor, wherein the recipe step importance factor indicates an importance of the one recipe step relative to the plurality of recipe steps; calculating an overall importance factor using the importance factor assigned to the one sensor and the importance factor assigned to the one recipe step associated with the one sensor; and providing the overall importance factor for normalizing variables in generating multivariate model results. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A computer system comprising:
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a memory to store an importance factor assigned to each of a plurality of sensors and each of a plurality of recipe steps; a processor coupled to a memory through a bus; and instructions executed from the memory by the processor to cause the processor to generate an overall importance factor for an association of one of the plurality of sensors with one of the plurality of recipe steps using the importance factor assigned to the one sensor and the importance factor assigned to the one recipe step associated with the one sensor. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A machine-accessible storage medium that provides instructions that, if executed by a machine, will cause the machine to perform operations, comprising:
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assigning a sensor importance factor to one of a plurality of sensors, wherein the sensor importance factor indicates an importance of the one sensor relative to the plurality of sensors; assigning a recipe step importance factor to one of a plurality of recipe steps, the one recipe step being associated with the one sensor, wherein the recipe step importance factor indicates an importance of the one recipe step relative to the plurality of recipe steps; calculating an overall importance factor using the importance factor assigned to the one sensor and the importance factor assigned to the one recipe step associated with the one sensor; and providing the overall importance factor for normalizing variables in generating multivariate model results. - View Dependent Claims (20, 21)
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Specification