IP Library › Granted Patent US 12,439,519
Granted Patent B2
US 12,439,519 · App. 18/037,130 · Granted Oct 7, 2025

Mounting board and circuit board

Inventors: Kiryu Ikebe (Tokyo, JP); Tomohisa Mitose (Tokyo, JP); Akiko Seki (Tokyo, JP); Susumu Taniguchi (Tokyo, JP); Hisayuki Abe (Tokyo, JP)
Assignee: TDK CORPORATION
H05K1/144H05K3/3447H05K2201/042H05K2201/10189
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Quick Facts
Patent No.
US 12,439,519
App. No.
18/037,130
Granted
Oct 7, 2025
Kind
B2
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 d 1 and long sides of the electronic component have a dimension d 2 , a value of (dimension d 1 −dimension d 2 ) is 10 μm or less.

Claims (60)

1. A mounting board comprising:

an electronic component including at least a pair of first terminals; and

a circuit board including at least a pair of second terminals,

wherein 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,

when long sides of a region surrounded by the wall have a dimension d 1 and long sides of the electronic component have a dimension d 2 , a value of (dimension d 1 −dimension d 2 ) is 10 μm or less, and

wherein a constituent material is disposed between the wall and both the electronic component and the joining material.

2. The mounting board according to claim 1 ,

wherein the constituent material exists above the upper surface of the wall.

3. The mounting board according to claim 2 ,

wherein a first spacer lower than the upper surface of the wall is disposed between the pair of second terminals.

4. The mounting board according to claim 2 ,

wherein a second spacer lower than the upper surface of the wall is disposed on an inner periphery of the wall.

5. The mounting board according to claim 2 ,

wherein when a height of the upper surface of the wall is defined as a dimension h 1 , and a height of an upper surface of the electronic component is defined as a dimension h 2 , a value of (dimension h 2 −dimension h 1 ) is 9 μm or less.

6. The mounting board according to claim 2 ,

wherein there is a step at a lower portion of the electronic component, and a constituent material is disposed between the lower portion and the circuit board.

7. The mounting board according to claim 2 ,

wherein inner surfaces of the wall have a tapered shape.

8. The mounting board according to claim 1 ,

wherein when a height of the upper surface of the wall is defined as a dimension h 1 , and a height of an upper surface of the electronic component is defined as a dimension h 2 , a value of (dimension h 2 −dimension h 1 ) is 9 μm or less.

9. The mounting board according to claim 1 ,

wherein inner surfaces of the wall have a tapered shape.

10. The mounting board according to claim 1 ,

wherein a first spacer lower than the upper surface of the wall is disposed between the pair of second terminals.

11. The mounting board according to claim 1 ,

wherein a second spacer lower than the upper surface of the wall is disposed on an inner periphery of the wall.

12. The mounting board according to claim 1 ,

wherein when a height of the upper surface of the wall is defined as a dimension h 1 , and a height of an upper surface of the electronic component is defined as a dimension h 2 , a value of (dimension h 2 −dimension h 1 ) is 9 μm or less.

13. The mounting board according to claim 1 ,

wherein there is a step at a lower portion of the electronic component, and a constituent material is disposed between the lower portion and the circuit board.

14. The mounting board according to claim 1 ,

wherein inner surfaces of the wall have a tapered shape.

15. A mounting board comprising:

an electronic component including at least a pair of first terminals; and

a circuit board including at least a pair of second terminals,

wherein 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,

when long sides of a region surrounded by the wall have a dimension d 1 and long sides of the electronic component have a dimension d 2 , a value of (dimension d 1 −dimension d 2 ) is 10 μm or less, and

wherein a first spacer lower than the upper surface of the wall is disposed between the pair of second terminals.

16. The mounting board according to claim 15 ,

wherein a second spacer lower than the upper surface of the wall is disposed on an inner periphery of the wall.

17. A mounting board comprising:

an electronic component including at least a pair of first terminals; and

a circuit board including at least a pair of second terminals,

wherein 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,

when long sides of a region surrounded by the wall have a dimension d 1 and long sides of the electronic component have a dimension d 2 , a value of (dimension d 1 −dimension d 2 ) is 10 μm or less, and

wherein a second spacer lower than the upper surface of the wall is disposed on an inner periphery of the wall.

18. A mounting board comprising:

an electronic component including at least a pair of first terminals; and

a circuit board including at least a pair of second terminals,

wherein 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,

when long sides of a region surrounded by the wall have a dimension d 1 and long sides of the electronic component have a dimension d 2 , a value of (dimension d 1 −dimension d 2 ) is 10 μm or less, and

wherein there is a step at a lower portion of the electronic component, and a constituent material is disposed between the lower portion and the circuit board.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 16, 2023
From: IKEBE, KIRYU; MITOSE, TOMOHISA; SEKI, AKIKO; TANIGUCHI, SUSUMU; ABE, HISAYUKI
To: TDK CORPORATION
Reel/Frame 063652/0367 →
Priority Claims (1)
JP 2020-192498 · Nov 19, 2020 · national
Continuity (1)
Related Publication 20240008183A1 · Jan 4, 2024
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Cited By (1)
US 12,659,057