Patent ID: 6240330
Filing Date: 2001-05-29
Classification: G05B,Y02P

Abstract:
A method for optimizing manufacturing production of a workpiece, the method comprising:(i) specifying ideal values for a parameter list corresponding to a completed workpiece;(ii) subjecting the workpiece to a plurality of manufacturing processes so as to produce the completed workpiece in satisfaction of said ideal values;(iii) monitoring the workpiece after a first manufacturing process for ascertaining the status of the in-process workpiece with respect to said ideal values;(iv) providing feedforward corrective actions to said manufacturing processes conditioned by said status of the in-process workpiece after the first manufacturing process to alter target values of said parameter list;(v) monitoring the workpiece after a second manufacturing process for ascertaining the status of the in-process workpiece with respect to said ideal values; and(vi) providing feedforward corrective actions to said manufacturing processes conditioned by said status of the in-process workpiece after the second manufacturing process to alter target values of said parameter list until the in-process workpiece is brought back within specifications,wherein out-of-specifications conditions determined in a previous manufacturing process are corrected beginning in a next subsequent manufacturing process capable of bringing the in-process workpiece back within specifications.