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:
Feb. 10, 2026
Filed:
Apr. 11, 2022
Mitsubishi Electric Corporation, Tokyo, JP;
Koji Misaki, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A hollow package includes a device substrate; a lid substrate provided above the device substrate; a first sealing ring provided on an upper surface of the device substrate; a second sealing ring provided on a lower surface of the lid substrate so as to face the first sealing ring; a seal layer that bonds the first sealing ring and the second sealing ring; and a functional element provided in a hollow portion surrounded by the device substrate, the lid substrate, the first sealing ring, the second sealing ring, and the seal layer, wherein the first sealing ring or the second sealing ring has a corner portion in a planar view, and the first sealing ring or the second sealing ring has a recess, which is recessed in a direction perpendicular to the upper surface of the device substrate, locally formed in a portion including the corner portion.