Exposing method

Photocopying – Projection printing and copying cameras – Methods

Reexamination Certificate

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C355S052000, C355S053000

Reexamination Certificate

active

06842230

ABSTRACT:
Lens distortion correction is characterized by obtaining a correction parameter by using the difference between the latest QC data used when exposing a overlaying layer and the latest QC data used when exposing a overlaid layer.

REFERENCES:
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patent: 20010017693 (2001-08-01), Zheng et al.
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patent: 2001-118791 (2001-04-01), None
patent: 2001-338860 (2001-12-01), None
van den Brink, M. A. et al., Matching Management of Multiple Wafer Steppers Using A Stable Standard and A Matching Simulator, Integrated Circuit Metrology, Inspection, and Process Control III, (1989), SPIE vol. 1087, pps. 218-232.

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