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:
Nov. 15, 2022
Filed:
Apr. 22, 2020
Applicant:
Ibiden Co., Ltd., Ogaki, JP;
Inventors:
Hiroaki Kodama, Ogaki, JP;
Kazuro Nishiwaki, Ogaki, JP;
Kazuhiko Kuranobu, Ogaki, JP;
Hiroaki Uno, Ogaki, JP;
Assignee:
IBIDEN CO., LTD., Ogaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/28 (2006.01); H01F 27/28 (2006.01); H01L 23/498 (2006.01); H01L 23/552 (2006.01); H01F 41/04 (2006.01); H01L 21/48 (2006.01);
U.S. Cl.
CPC ...
H01F 27/2804 (2013.01); H01F 27/2885 (2013.01); H01F 41/041 (2013.01); H01L 21/4857 (2013.01); H01L 23/49816 (2013.01); H01L 23/49822 (2013.01); H01L 23/49838 (2013.01); H01L 23/552 (2013.01); H01F 2027/2809 (2013.01);
Abstract
An inductor built-in substrate includes a core substrate having openings, a magnetic resin filled in the openings and having through holes, and through-hole conductors formed in the through holes respectively such that each of the through-hole conductors includes a metal film. The magnetic resin is formed such that each of the through holes has an angle part having an obtuse angle formed by an upper surface of the magnetic resin and a side wall of a respective one of the through holes.