The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 11, 2018

Filed:

Aug. 08, 2014
Applicant:

Ebara Corporation, Tokyo, JP;

Inventors:

Kenichi Suematsu, Tokyo, JP;

Shoji Yoshikawa, Tokyo, JP;

Assignee:

EBARA CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 37/28 (2006.01); H01J 37/20 (2006.01); H01J 37/285 (2006.01);
U.S. Cl.
CPC ...
H01J 37/20 (2013.01); H01J 37/285 (2013.01); H01J 2237/20228 (2013.01);
Abstract

An inspection system includes a TDI sensor that integrates amounts of secondary charged particles or electromagnetic waves along a predetermined direction at every timing at which a transfer clock is inputted and sequentially transfers the amounts of secondary charged particles or electromagnetic waves so integrated, and a deflector which deflects, based on a difference between an actual position and a target position of the inspection target, the secondary charged particles or electromagnetic waves directed towards the TDI sensor in a direction in which the difference is offset. The target position is set into something like a step-and-riser shape in which the target position is kept staying in the same position by a predetermined period of time that is equal to or shorter than a period of time from an input of the transfer clock to an input of the following transfer clock and thereafter rises by a predetermined distance.


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