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. 15, 2025

Filed:

May. 22, 2024
Applicant:

Fujifilm Corporation, Tokyo, JP;

Inventor:

Kazuhiro Hasegawa, Kanagawa, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/041 (2006.01); G06F 3/044 (2006.01); G03F 7/40 (2006.01);
U.S. Cl.
CPC ...
G06F 3/04164 (2019.05); G06F 3/0445 (2019.05); G06F 3/0446 (2019.05); G03F 7/40 (2013.01); G06F 2203/04103 (2013.01);
Abstract

A touch sensor where disconnection of peripheral wirings is prevented and a method of producing the touch sensor. The method includes in order: preparing a substrate including a detection region and a peripheral region; forming a metal layer in the peripheral region; forming detection electrode connection terminals, external connection terminals, and peripheral wirings that connect the plurality of detection electrode connection terminals and the plurality of external connection terminals to each other by patterning a photosensitive resist on the metal layer through photolithography and subjecting the metal layer to wet etching; forming a to-be-plated layer in the detection region, which extends to cover at least a part of each of the detection electrode connection terminals, and includes a pattern composed of a plurality of thin wires; and forming touch detection electrodes that are electrically connected to the detection electrode connection terminals on the to-be-plated layer by a wet plating method.


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