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:
Jun. 24, 2025

Filed:

Aug. 31, 2021
Applicant:

Tokyo Electron Limited, Tokyo, JP;

Inventors:

Norihiko Amikura, Miyagi, JP;

Masatomo Kita, Miyagi, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/68 (2006.01); G01S 17/48 (2006.01); H01L 21/66 (2006.01); H01L 21/677 (2006.01);
U.S. Cl.
CPC ...
H01L 21/681 (2013.01); G01S 17/48 (2013.01); H01L 21/67742 (2013.01); H01L 22/12 (2013.01);
Abstract

A transfer apparatus includes a transfer arm, an irradiator, a light receiver, and a controller. The transfer arm transfers the member. The irradiator irradiates light obliquely onto a passage area, through which the member passes, when the member is transferred by the transfer arm. The light receiver receives the light, which is irradiated from the irradiator and reflected from the member, when the member passes through the passage area. The controller determines whether the member has passed through the passage area according to whether the light irradiated from the irradiator is received by the light receiver.


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