Lithographic manufacturing process, lithographic projection...

Photocopying – Projection printing and copying cameras – Distortion introducing or rectifying

Reexamination Certificate

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C355S053000, C355S055000

Reexamination Certificate

active

06977714

ABSTRACT:
A lithographic manufacturing process is disclosed in which first information of a lithographic transfer function of a first lithographic projection apparatus is obtained. The information is compared with second information of a reference lithographic transfer function (e.g. of a second lithographic projection apparatus). The difference between the first and second information is calculated. Then, the change of machine settings for the first lithographic projection apparatus, needed to minimize the difference, is calculated and applied to the first lithographic projection apparatus. In an exemplary application, a match between the first and second lithographic projection apparatus of any pitch-dependency of feature errors is improved.

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