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. 29, 2022
Filed:
Feb. 25, 2021
Applicant:
Ibiden Co., Ltd., Gifu, JP;
Inventors:
Satoru Kawai, Ogaki, JP;
Yasuki Kimishima, Ogaki, JP;
Assignee:
IBIDEN CO., LTD., Ogaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
H05K 1/18 (2006.01); H05K 1/03 (2006.01);
U.S. Cl.
CPC ...
H05K 1/185 (2013.01); H05K 1/0306 (2013.01); H05K 2201/09563 (2013.01); H05K 2201/1003 (2013.01);
Abstract
An inductor built-in substrate includes a core substrate having an opening and a first through hole formed therein, a magnetic resin filling the opening and having a second through hole formed therein, a first through-hole conductor including a metal film formed in the first through hole, and a second through-hole conductor including a metal film formed in the second through hole. The core substrate and the magnetic resin are formed such that a surface in the first through hole has a roughness that is larger than a roughness of a surface in the second through hole.