On-line process specification adjusting and component disposing based on predictive model of component performance
AssigneeHitachi Global Storage Technologies Netherlands B.V.
InventorsStephen L. Eichblatt, Laurence S. Samuelson
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Abstract
A disposition process involves a part proceeding through a sequence of fabrication steps. The process involves obtaining a specified parameter for the part at an individual fabrication step; measuring the specified parameter of the part at the individual fabrication step; obtaining a final specified parameter for the part upon completion of the sequence of fabrication steps; and disposing the part at the individual fabrication step. Disposing the part uses a calculation of probability of the part meeting the final specified parameter.
Claims19
A disposition process involving a part proceeding through sequential fabrication steps, said process comprising:
- obtaining a specified parameter for said part at an individual fabrication step;
- measuring said specified parameter of said part at said individual fabrication step;
- obtaining a final specified parameter for said part upon completion of said sequential fabrication steps;
- and
- disposing said part at said individual fabrication step wherein said disposing uses a calculation of probability of said part meeting said final specified parameter.
A specification adjusting process involving a part proceeding through sequential fabrication steps, said process comprising:
- obtaining a specified tolerance of a parameter for said part at an individual fabrication step;
- obtaining a final tolerance for said part at completion of said sequential fabrication steps;
- calculating an acceptable tolerance of a parameter of said part at said individual fabrication step;
- and
- applying a calculated tolerance for said part at said individual fabrication step.
A disposition process involving a part proceeding through sequential fabrication steps, said process comprising:
- processing said part through an individual fabrication step;
- obtaining a measured parameter of said part at said individual fabrication step;
- assigning a risk threshold to said part;
- and
- disposing said part at said individual fabrication step wherein said disposing uses said risk threshold.
Dependencies are inferred from the claim text.