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:
Dec. 31, 2024
Filed:
Apr. 28, 2020
Applicant:
Amosense Co., Ltd., Cheonan, KR;
Inventor:
Ji-Hyung Lee, Cheonan, KR;
Assignee:
AMOSENSE CO., LTD., Cheonan-Si, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 23/00 (2006.01); H01L 21/48 (2006.01); H01L 23/373 (2006.01);
U.S. Cl.
CPC ...
H01L 23/562 (2013.01); H01L 21/4807 (2013.01); H01L 23/3735 (2013.01);
Abstract
Provided are a ceramic substrate and a method of manufacturing the same, which suppress a warpage phenomenon caused by a difference in volumes occupied by upper and lower metal layers of a ceramic base material and controls areas of the upper and lower metal layers especially when thicknesses of the upper and lower metal layers on the ceramic base material are equal to each other, thereby reducing a defect rate of the ceramic substrate.