Electronic device

Patent metadata

Field	Value
Publication number	US-12548711-B2
Application number	US-202217888139-A
Country	US
Kind code	B2
Filing date	Aug 15, 2022
Priority date	Aug 27, 2021
Publication date	Feb 10, 2026
Grant date	Feb 10, 2026

Abstract

An electronic device includes a case, a ceramic element, a first metal terminal, and a second metal terminal. The case includes a recess and its opening edge. The ceramic element is disposed in the recess and includes a first main surface and a second main surface opposing to each other, a first electrode portion formed on the first main surface, and a second electrode portion formed on the second main surface. The first metal terminal includes a first mounting portion disposed on the opening edge and being substantially perpendicular to the first and second main surfaces and a first electrode connection portion connected to the first electrode portion. The second metal terminal includes a second mounting portion disposed on the opening edge and being substantially perpendicular to the first and second main surfaces and a second electrode connection portion connected to the second electrode portion.

First claim

What is claimed is:

1 . An electronic device comprising:
a case including a recess and an opening edge of the recess; a ceramic element disposed in the recess and including:
a first main surface and a second main surface opposing to each other, the first main surface and the second main surface being a pair of surfaces having the largest area in the ceramic element;
a first electrode portion formed on the first main surface; and
a second electrode portion formed on the second main surface;
a first metal terminal including:
a first mounting portion disposed on the opening edge and being substantially perpendicular to the first main surface and the second main surface; and
a first electrode connection portion connected to the first electrode portion; and
a second metal terminal including:
a second mounting portion disposed on the opening edge and being substantially perpendicular to the first main surface and the second main surface; and
a second electrode connection portion connected to the second electrode portion.

2 . The electronic device according to claim 1 , wherein
the case includes a first outer side surface and a second outer side surface substantially perpendicular to the first and second main surfaces and the first and second mounting portions and facing in opposite directions, a distance from a tip of the first mounting portion to the first outer side surface is smaller than that from the tip of the first mounting portion to the recess, and a distance from a tip of the second mounting portion to the second outer side surface is smaller than that from the tip of the second mounting portion to the recess.

3 . The electronic device according to claim 1 , wherein
the ceramic element includes a first element portion and a second element portion each having the first main surface, the second main surface, the first electrode portion, and the second electrode portion, the first element portion and the second element portion are arranged side by side in the recess along a length direction of the case in a posture where the first main surface of the first element portion and the first main surface of the second element portion face in opposite directions, the first electrode connection portion is connected to the first electrode portion of the first element portion, the second electrode connection portion is connected to the second electrode portion of the second element portion, and the electronic device comprises a third metal terminal connecting between the second electrode portion of the first element portion and the first electrode portion of the second element portion.

4 . The electronic device according to claim 3 , wherein the first element portion and the second element portion are arranged in the recess so that:
the first main surface of the first element portion and the second main surface of the second element portion are located on substantially the same plane; and the second main surface of the first element portion and the first main surface of the second element portion are located on substantially the same plane.

5 . The electronic device according to claim 1 , wherein
the ceramic element includes a first element portion and a second element portion each having the first main surface, the second main surface, the first electrode portion, and the second electrode portion, the first element portion and the second element portion are arranged side by side in the recess along a length direction of the case in a posture where the first main surface of the first element portion and the first main surface of the second element portion face in the same direction, the first electrode connection portion is connected to both of the first electrode portions of the first element portion and the second element portion, and the second electrode connection portion is connected to both of the second electrode portions of the first element portion and the second element portion.

6 . The electronic device according to claim 5 , wherein the first element portion and the second element portion are arranged in the recess so that:
the first main surface of the first element portion and the first main surface of the second element portion are located on substantially the same plane; and the second main surface of the first element portion and the second main surface of the second element portion are located on substantially the same plane.

7 . The electronic device according to claim 1 , wherein at least a part of the opening edge of the case is visible from below.

8 . The electronic device according to claim 1 , wherein the case has a substantially hexagonal columnar shape whose outer side surfaces are all non-parallel to the first main surface and the second main surface.

9 . The electronic device according to claim 1 , comprising
a groove unit formed on a third outer side surface of the case; and a protrusion unit formed on a fourth outer side surface of the case and corresponding to a shape of the groove unit.

10 . The electronic device according to claim 1 , wherein
the first metal terminal includes a first folded portion extending upward along outer side surfaces of the case from a tip of the first mounting portion, and the second metal terminal includes a second folded portion extending upward along outer side surfaces of the case from a tip of the second mounting portion.

11 . The electronic device according to claim 1 , wherein the ceramic element is one single plate ceramic element.

12 . The electronic device according to claim 1 , wherein the ceramic element has a substantially disk-shaped outer shape.

13 . An electronic device comprising:
a case including a recess, an opening edge of the recess, and an upper bottom, the opening edge configuring a bottom surface of the electronic device facing to a mounting target, the upper bottom being formed an upper part of the electronic device opposite side of the opening edge; a ceramic element disposed in the recess and including:
a first main surface and a second main surface opposing to each other;
a first electrode portion formed on the first main surface; and
a second electrode portion formed on the second main surface;
a first metal terminal including:
a first mounting portion disposed on the opening edge and being substantially perpendicular to the first main surface and the second main surface; and
a first electrode connection portion connected to the first electrode portion;
a second metal terminal including:
a second mounting portion disposed on the opening edge and being substantially perpendicular to the first main surface and the second main surface; and
a second electrode connection portion connected to the second electrode portion,
wherein no conductive member is present on an outer surface of the upper bottom of the case.

14 . The electronic device according to claim 13 , wherein
the case includes a first outer side surface and a second outer side surface substantially perpendicular to the first and second main surfaces and the first and second mounting portions and facing in opposite directions, a distance from a tip of the first mounting portion to the first outer side surface is smaller than that from the tip of the first mounting portion to the recess, and a distance from a tip of the second mounting portion to the second outer side surface is smaller than that from the tip of the second mounting portion to the recess.

15 . The electronic device according to claim 13 , wherein
the ceramic element includes a first element portion and a second ele

Assignees

• Tdk Corp

Inventors

• Masuda Akihiro
• Ito Shinya
• Ando Norihisa
• Kaneko Hideki
• Aburakawa Ken
• Tamaki Kenya
• Yoshii Akitoshi

Classifications

• H01G4/224

  Housing; Encapsulation · CPC title

• H01G4/236

  leading through the housing, i.e. lead-through · CPC title

• H01G4/012 Primary

  Form of non-self-supporting electrodes · CPC title

• H01G4/38

  Multiple capacitors, i.e. structural combinations of fixed capacitors · CPC title

• H01G4/40

  Structural combinations of fixed capacitors with other electric elements, the structure mainly consisting of a capacitor, e.g. RC combinations · CPC title