Method and apparatus for controlling process target values...

Data processing: generic control systems or specific application – Specific application – apparatus or process – Product assembly or manufacturing

Reexamination Certificate

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C700S108000, C702S182000

Reexamination Certificate

active

06937914

ABSTRACT:
A method for controlling a tool adapted to process workpieces in accordance with an operating recipe based on a process target value is provided. The method includes collecting manufacturing characteristic data associated with the workpieces; correlating the manufacturing characteristic data with a first manufacturing metric to generate a first manufacturing metric distribution for the workpieces; and adjusting the process target value based on the first manufacturing metric distribution. A manufacturing system includes a processing tool and a target monitor. The processing tool is adapted to process workpieces in accordance with an operating recipe based on a process target value. The target monitor is adapted to collect manufacturing characteristic data associated with the workpieces, correlate the manufacturing characteristic data with a first manufacturing metric to generate a first manufacturing metric distribution for the workpieces, and adjust the process target value based on the first manufacturing metric distribution.

REFERENCES:
patent: 6044208 (2000-03-01), Papadopoulou et al.
patent: 6210983 (2001-04-01), Atchison et al.
patent: 6265232 (2001-07-01), Simmons
patent: 6430456 (2002-08-01), Black et al.
patent: 6456894 (2002-09-01), Nulman

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