Capacitor device and composite electronic component including the same

Patent metadata

Field	Value
Publication number	US-2016293335-A1
Application number	US-201615084840-A
Country	US
Kind code	A1
Filing date	Mar 30, 2016
Priority date	Apr 1, 2015
Publication date	Oct 6, 2016
Grant date	—

Abstract

A composite electronic component includes a capacitor device and a resistance device which is disposed on the capacitor device and includes a resistor. The capacitor device includes a capacitor body and a first external electrode, a second external electrode, a third external electrode, and a fourth external electrode each provided on a surface of the capacitor body. The resistor is electrically connected to each of the third external electrode and the fourth external electrode.

First claim

What is claimed is:

1 . A composite electronic component comprising:
a capacitor device; and a resistance device disposed on the capacitor device and including a resistor; wherein the capacitor device includes:
a capacitor body including a first internal electrode and a second internal electrode facing each other across a dielectric layer; and
a first external electrode, a second external electrode, a third external electrode, and a fourth external electrode each provided on a surface of the capacitor body;
the first external electrode and the second external electrode are isolated from each other in a length direction perpendicular or substantially perpendicular to a height direction of the capacitor body; the third external electrode and the fourth external electrode are isolated from each other and located between the first external electrode and the second external electrode in the length direction; the first external electrode is directly connected to the first internal electrode or the second internal electrode; the second external electrode is directly connected to the first internal electrode or the second internal electrode; and the resistor is electrically connected to each of the third external electrode and the fourth external electrode.

2 . The composite electronic component according to claim 1 , wherein
the resistance device includes an insulating base, and a first connection electrode and a second connection electrode which are provided on the insulating base; the resistor is directly connected, on the insulating base, to each of the first connection electrode and the second connection electrode; the first connection electrode is electrically connected to the third external electrode; and the second connection electrode is electrically connected to the fourth external electrode.

3 . The composite electronic component according to claim 2 , wherein in the height direction of the capacitor body, the insulating base overlaps each of at least a portion of the first external electrode and at least a portion of the second external electrode.

4 . The composite electronic component according to claim 1 , wherein
the resistance device is defined by the resistor which is directly provided on the capacitor device; and the resistor is directly connected to each of the third external electrode and the fourth external electrode.

5 . The composite electronic component according to claim 1 , wherein the third external electrode and the fourth external electrode are not connected to the first internal electrode and the second internal electrode in the capacitor device.

6 . The composite electronic component according to claim 5 , wherein
the capacitor body further includes a first internal conductor and a second internal conductor which are provided outside a region where the first internal electrode and the second internal electrode face each other as seen in a stack direction in which the first internal electrode and the second internal electrode are stacked, and which are isolated from each other; the first internal conductor is directly connected to the third external electrode; and the second internal conductor is directly connected to the fourth external electrode.

7 . The composite electronic component according to claim 1 , wherein
the capacitor body includes a third internal electrode facing at least one of the first internal electrode and the second internal electrode; and the third internal electrode is directly connected to the third external electrode or the fourth external electrode.

8 . The composite electronic component according to claim 1 , wherein in the height direction of the capacitor body, a maximum thickness of each of the third external electrode and the fourth external electrode is smaller than a maximum thickness of each of the first external electrode and the second external electrode.

9 . A capacitor device comprising:
a capacitor body including a first internal electrode and a second internal electrode facing each other across a dielectric layer; and a first external electrode, a second external electrode, a third external electrode, and a fourth external electrode each provided on a surface of the capacitor body; wherein the first external electrode and the second external electrode are isolated from each other in a length direction perpendicular or substantially perpendicular to a height direction of the capacitor body; the third external electrode and the fourth external electrode are isolated from each other and located between the first external electrode and the second external electrode in the length direction; the first external electrode is directly connected to the first internal electrode or the second internal electrode; and the second external electrode is directly connected to the first internal electrode or the second internal electrode.

10 . The capacitor device according to claim 9 , wherein the third external electrode and the fourth external electrode are each not connected to the first internal electrode and the second internal electrode in the capacitor device.

11 . The capacitor device according to claim 10 , wherein
the capacitor body further includes a first internal conductor and a second internal conductor which are provided outside a region where the first internal electrode and the second internal electrode face each other as seen in a stack direction in which the first internal electrode and the second internal electrode are stacked, and which are isolated from each other; the first internal conductor is directly connected to the third external electrode; and the second internal conductor is directly connected to the fourth external electrode.

12 . The capacitor device according to claim 9 , wherein
the capacitor body further includes a third internal electrode facing at least one of the first internal electrode and the second internal electrode; and the third internal electrode is directly connected to the third external electrode or the fourth external electrode.

13 . The capacitor device according to claim 9 , wherein in the height direction of the capacitor body, a maximum thickness of each of the third external electrode and the fourth external electrode is smaller than a maximum thickness of each of the first external electrode and the second external electrode.

14 . A composite electronic component comprising:
a capacitor device; and a resistance device disposed on the capacitor device and including a resistor; wherein the capacitor device includes:
a capacitor body including a first internal electrode and a second internal electrode facing each other across a dielectric layer; and
a first external electrode, a second external electrode, a third external electrode, and a fourth external electrode each provided on a surface of the capacitor body;
the first external electrode and the second external electrode are isolated from each other in a length direction perpendicular or substantially perpendicular to a height direction of the capacitor body; the third external electrode and the fourth external electrode are isolated from each other and located between the first external electrode and the second external electrode in the length direction; the third external electrode is directly connected to the first internal electrode or the second internal electrode; the fourth external electrode is directly connected to the first internal electrode or the second internal electrode; and the resistor is electrically connected to each of the first external electrode and the second external electrode

Assignees

• Murata Manufacturing Co

Inventors

• Adachi Hirobumi
• Kimura Hitoaki

Classifications

• H01G4/30

  Stacked capacitors (H01G4/33 takes precedence) · CPC title

• H01G4/40 Primary

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