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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.

Patent No.:

US 12538541 B1

PDFFull Text
Date of Patent:
Jan. 27, 2026

Filed:

Dec. 22, 2022

Semiconductor device, biosensor, biosensor array, and logic circuit

Applicants:

Ryota Suto, Kyoto, JP;

Nobuto Hosono, Hyogo, JP;

Inventors:

Ryota Suto, Kyoto, JP;

Nobuto Hosono, Hyogo, JP;

Assignee:

RICOH COMPANY, LTD., Tokyo, JP;

Attorney:

XSENSUS LLP

Primary Examiner:

Norman D Richards

Assistant Examiner:

Sammantha K Salaz

Int. Cl.
CPC ...
H10D 62/80 (2025.01); G01N 27/414 (2006.01); H03K 19/00 (2006.01); H10D 30/01 (2025.01); H10D 30/60 (2025.01); H10D 64/23 (2025.01); H10D 62/83 (2025.01);
U.S. Cl.
CPC ...
H10D 62/882 (2025.01); G01N 27/4145 (2013.01); G01N 27/4148 (2013.01); H03K 19/0013 (2013.01); H10D 30/611 (2025.01); H10D 64/258 (2025.01); H10D 30/01 (2025.01); H10D 62/8303 (2025.01);
Abstract

A semiconductor device includes a first gate electrode, an insulating part, a source electrode, a drain electrode, and a contact part. The insulating part is on one surface of the first gate electrode. The source electrode is connected to the insulating part. The drain electrode is connected to the insulating part. The contact part is between the source electrode and the drain electrode and on the insulating part. The contact part contains an atomic layered material. The contact part has a second part contactable with a sample. The second surface is opposite to a first surface facing the insulating part. A surface of the insulating part, the surface facing the contact part, has an uneven structure with respect to the first gate electrode.

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Suto, Ryota. (2026). Semiconductor device, biosensor, biosensor array, and logic circuit (U.S. Patent No. 12538541). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12538541

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