IP Library › Granted Patent US 10,861,651
Granted Patent B2
US 10,861,651 · App. 16/155,570 · Granted Dec 8, 2020

Multilayer capacitor

Inventors: Jong Ho Lee (Suwon-si, KR); Duk Hyun Chun (Suwon-si, KR); Myung Jun Park (Suwon-si, KR); Eun Jin Kim (Suwon-si, KR); Hye Min Bang (Suwon-si, KR)
Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
H01G4/30H01G4/008H01G4/12
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Quick Facts
Patent No.
US 10,861,651
App. No.
16/155,570
Granted
Dec 8, 2020
Kind
B2
Abstract

A multilayer capacitor includes a body including an internal electrode alternately disposed with a dielectric layer, and an external electrode disposed on the body. The external electrode includes a first electrode layer contacting the internal electrode, an oxide layer disposed on the first electrode layer and including a metal oxide and glass, and a second electrode layer disposed on the oxide layer.

Claims (14)

1. A multilayer capacitor comprising:

a body including an internal electrode alternately disposed with a dielectric layer; and

an external electrode disposed on the body,

wherein the external electrode includes a first electrode layer contacting the internal electrode, a glass-oxide composite layer disposed on the first electrode layer and including a metal oxide and glass, and a second electrode layer disposed on the glass-oxide composite layer, and

the glass-oxide composite layer, including the metal oxide and the glass and spaced apart from the internal electrode by the first electrode layer, has a thickness within a range from 0.2 μm or more to 8 μm or less.

2. The multilayer capacitor of claim 1 , wherein a content of a metal included in the glass-oxide composite layer is within a range of 10 wt % to 80 wt %, based on a total weight of the glass-oxide composite layer.

3. The multilayer capacitor of claim 1 , wherein the first electrode layer comprises nickel (Ni).

4. The multilayer capacitor of claim 1 , wherein the second electrode layer is a sintered electrode including a conductive metal and glass.

5. The multilayer capacitor of claim 4 , wherein the conductive metal is copper (Cu).

6. The multilayer capacitor of claim 1 , wherein the metal oxide is a nickel (Ni) oxide.

7. The multilayer capacitor of claim 1 , wherein the first electrode layer comprises nickel (Ni), the metal oxide is a nickel (Ni) oxide, and the second electrode layer is a sintered electrode including copper (Cu) and glass.

8. The multilayer capacitor of claim 1 , wherein the metal oxide is an oxide of a metal contained in the first electrode layer.

9. The multilayer capacitor of claim 1 , further comprising a plating layer disposed on the second electrode layer.

10. The multilayer capacitor of claim 1 , wherein the second electrode layer includes a conductive metal different from a metal of the metal oxide of the glass-oxide composite layer.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 9, 2018
From: LEE, JONG HO; CHUN, DUK HYUN; PARK, MYUNG JUN; KIM, EUN JIN; BANG, HYE MIN
To: SAMSUNG ELECTRO-MECHANICS CO., LTD.
Reel/Frame 047110/0332 →
Priority Claims (1)
KR 10-2018-0050731 · May 2, 2018 · national
Continuity (1)
Related Publication 20190341190A1 · Nov 7, 2019
Cited By (1)
US 12,224,104