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:
Jul. 14, 2020

Filed:

Nov. 02, 2018
Applicants:

Nuflare Technology, Inc., Yokohama-shi, JP;

Nuflare Technology America, Inc., Sunnyvale, CA (US);

Inventors:

Yoshikuni Goshima, Yokohama, JP;

Victor Katsap, Cornwall, NY (US);

Rodney Kendall, Ridgefield, CT (US);

Assignees:

NuFlare Technology, Inc., Yokohama-shi, JP;

NuFlare Technology America, Inc., Sunnyvale, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 37/00 (2006.01); H01J 37/304 (2006.01); G03F 7/20 (2006.01); H01J 37/317 (2006.01); H01J 37/244 (2006.01);
U.S. Cl.
CPC ...
H01J 37/3045 (2013.01); G03F 7/2059 (2013.01); G03F 7/70383 (2013.01); G03F 7/70825 (2013.01); H01J 37/244 (2013.01); H01J 37/3177 (2013.01);
Abstract

An individual beam detector for multiple beams includes a thin film in which a passage hole smaller than a pitch between beams of multiple beams and larger than the diameter of a beam is formed and through which the multiple beams can penetrate, a support base to support the thin film in which an opening is formed under the region including the passage hole, and the width size of the opening is formed to have a temperature of the periphery of the passage hole higher than an evaporation temperature of impurities adhering to the periphery in the case that the thin film is irradiated with the multiple beams, and a sensor arranged, at the position away from the thin film by a distance based on which a detection target beam having passed the passage hole can be detected by the sensor as a detection value with contrast discernible.


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