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:
Mar. 25, 2025
Filed:
Apr. 22, 2022
SK Hynix Inc., Icheon-si, KR;
Yun Hui Yang, Icheon-si, KR;
SK HYNIX INC., Icheon-si, KR;
Abstract
An image sensing device is provided to include: a substrate including photoelectric conversion elements, each configured to generate photocharge corresponding to the intensity of incident light; a plurality of optical filters disposed over the substrate and configured to selectively transmit the incident light to the plurality of photoelectric conversion elements; and an optical grid structure disposed between the optical filters adjacent to each other. The optical grid structure comprises a capping layer disposed along a boundary of the optical grid structure and structured to define a space with an open area to expose the space to an outside of the optical grid structure so that the space is filled with air as an air layer, wherein a first width of a top side of the air layer is smaller than a second width of a bottom side thereof.