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. 12, 2024
Filed:
Mar. 22, 2022
Applicants:
Ngk Electronics Devices, Inc., Mine, JP;
Ngk Insulators, Ltd., Nagoya, JP;
Inventors:
Assignees:
NGK ELECTRONICS DEVICES, INC., Mine, JP;
NGK INSULATORS, LTD., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/367 (2006.01); H01L 23/373 (2006.01);
U.S. Cl.
CPC ...
H01L 23/3675 (2013.01); H01L 23/3731 (2013.01);
Abstract
A package has a cavity to be sealed by a lid. The package includes a heat sink having a coefficient of thermal expansion of 9 ppm/° C. or more and 15 ppm/° C. or less from 25° C. to 100° C. and a frame disposed on the heat sink, made of ceramics, and surrounding the cavity in plan view. An outer edge of the frame includes a first linear portion extending along a first direction, a second linear portion extending along a second direction orthogonal to the first direction, and a chamfer connecting the first linear portion and the second linear portion in plan view.