Method for measuring the position of a mark in a deflector...

Data processing: measuring – calibrating – or testing – Measurement system – Orientation or position

Reexamination Certificate

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C702S155000, C382S199000

Reexamination Certificate

active

07912671

ABSTRACT:
The present invention relates to a method for determining the coordinates of an arbitrarily shaped pattern in a deflector system. The method basically comprises the steps of: moving the pattern in a first direction (X), calculating the position of the edge of the pattern by counting the number of micro sweeps, performed in a perpendicular direction (Y), until the edge is detected, and determining the coordinates by relating the number of counted micro sweeps to the speed of the movement of the pattern. The invention also relates to software implementing the method.

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1st page of International Preliminary Report on Patentability for International Application No. PCT/SE2005/000100 completed Jul. 31, 2006.
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Reply to Written Opinion of the International Searching Authority for International Application PCT/SE/2005/000591, filed Feb. 23, 2007.

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