Method of alignment in exposure step through array error and sho

Radiation imagery chemistry: process – composition – or product th – Registration or layout process other than color proofing

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G03F 900

Patent

active

058560548

ABSTRACT:
A method of alignment which can reduce a rotation error and a magnifying rate error of a shot is provided. According to the method of alignment, alignment in the third step (step D) is performed through correction by determining the shot error based on data in X and Y directions in the first step (step B), as well as through correction by determining the array error based on at least one of the data of the alignment marks in X and Y directions in the second step (step C).

REFERENCES:
patent: 5532091 (1996-07-01), Mizutani

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