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.:
Date of Patent:
Nov. 18, 2025
Filed:
Aug. 17, 2022
Canon Kabushiki Kaisha, Tokyo, JP;
Yoshiyuki Nakagawa, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An apparatus includes a substrate, wherein the substrate includes a conversion unit and a circuit region where a signal generated by the conversion unit is processed, wherein the circuit region includes a p-type semiconductor region and an n-type semiconductor region, wherein a film having a negative fixed charge is provided on the surface side of the p-type semiconductor region, wherein a film having a positive fixed charge is provided on the surface side of the n-type semiconductor region, and wherein the film having the negative fixed charge and the film having the positive fixed charge are aligned in a direction parallel to the surface.