公开(公告)号：US20240008183A1

公开(公告)日：2024-01-04

申请号：US18037130

申请日：2021-11-15

Applicant: TDK CORPORATION

Inventor： Kiryu IKEBE ,  Tomohisa MITOSE ,  Akiko SEKI ,  Susumu TANIGUCHI ,  Hisayuki ABE

IPC: H05K1/14 ,  H05K3/34

CPC classification number: H05K1/144 ,  H05K3/3447 ,  H05K2201/10189 ,  H05K2201/042

Abstract: A mounting board includes: an electronic component including at least a pair of first terminals; and a circuit board including at least a pair of second terminals. The first terminals and the second terminals are electrically joined by a joining material containing a metal element, the electronic component and the joining material are disposed within a wall made of an insulator, a lower surface of the electronic component is lower than an upper surface of the wall, and when long sides of a region surrounded by the wall have a dimension d1 and long sides of the electronic component have a dimension d2, a value of (dimension d1−dimension d2) is 10 μm or less.