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. 07, 2023
Filed:
Dec. 09, 2020
Applicant:
Tdk Corporation, Tokyo, JP;
Inventors:
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B81B 7/00 (2006.01); H01L 23/00 (2006.01); B81C 1/00 (2006.01); H01L 21/48 (2006.01); H01L 23/10 (2006.01); H01L 23/08 (2006.01);
U.S. Cl.
CPC ...
B81B 7/0061 (2013.01); B81C 1/00269 (2013.01); H01L 21/4817 (2013.01); H01L 23/10 (2013.01); H01L 24/16 (2013.01); H01L 24/32 (2013.01); H01L 24/48 (2013.01); B81B 2201/0257 (2013.01); B81B 2201/0264 (2013.01); B81B 2207/098 (2013.01); B81C 2203/019 (2013.01); B81C 2203/0109 (2013.01); B81C 2203/032 (2013.01); B81C 2203/035 (2013.01); H01L 23/08 (2013.01); H01L 2224/16227 (2013.01); H01L 2224/32225 (2013.01); H01L 2224/48227 (2013.01); H01L 2924/1433 (2013.01);
Abstract
In an embodiment A package includes a casing having an opening and enclosing a cavity, a die accommodated in the cavity and a membrane attached to the casing, the membrane being air-permeable, covering and sealing the opening, wherein the membrane is configured to allow only a lateral gas flow, and wherein a blocking member is configured to block a vertical gas flow through the membrane into the cavity, the blocking member tightly covering a surface of the membrane at least in an area comprising the opening.