MULTI-LAYER CERAMIC ELECTRONIC COMPONENT AND METHOD OF PRODUCING THE SAME

• US 20170287642A1
• Filed: 03/28/2017
• Published: 10/05/2017
• Est. Priority Date: 03/30/2016
• Status: Active Application

• Current Assignee: Taiyo Yuden Company Limited (Taiyo Yuden Co)
• Original Assignee: Taiyo Yuden Company Limited (Taiyo Yuden Co)
• Inventors: ONO, Ryo, FUKUOKA, Tetsuhiko
• Application Number:
  US15/471,755
• Publication Number:
  US 20170287642A1
• Time in Patent Office: Days
• CPC Class Codes: H01G 4/008 Selection of materials
• CPC Class Codes: H01G 4/0085 Fried electrodes
• CPC Class Codes: H01G 4/012 Form of non-self-supporting electrodes
• CPC Class Codes: H01G 4/12 Ceramic dielectrics H01G4/085 takes precedence
• CPC Class Codes: H01G 4/224 Housing; Encapsulation
• CPC Class Codes: H01G 4/2325 characterised by the material of the terminals
• CPC Class Codes: H01G 4/30 Stacked capacitors H01G4/33 takes precedence

Abstract

A multi-layer ceramic capacitor, including a multi-layer including internal electrodes and dielectric layers alternately laminated, the internal electrodes having ends protruding beyond the dielectric layers in surface directions thereof; and side protective layers configured of a dielectric and disposed to cover side faces of the multi-layer, the side protective layers each having spacing sections formed between the ends of the internal electrodes.

Claims

1. A multi-layer ceramic capacitor, comprising:

a multi-layer comprising;

internal electrodes and dielectric layers alternately laminated,

the internal electrodes having ends protruding beyond the dielectric layers in surface directions thereof; and

side protective layers configured of a dielectric and disposed to cover side faces of the multi-layer, the side protective layers each having spacing sections formed between the ends of the internal electrodes.

2. The multi-layer ceramic capacitor according to claim 1, wherein the ends of the internal electrodes include oxidized areas.

3. The multi-layer ceramic capacitor according to claim 2, wherein;

the internal electrodes contain nickel;

the side protective layers contain magnesium; and

the oxidized areas of the internal electrodes include an oxide containing nickel and magnesium.

4. The multi-layer ceramic capacitor according to claim 1, wherein each of the ends protruding beyond the dielectric layers in surface directions has a length of 0.3 μ

m or more and 4 μ

m or less.

5. The multi-layer ceramic capacitor according to claim 4, wherein each of the ends protruding beyond the dielectric layers in surface directions has a length of 0.8 μ

m or more and 2 μ

m or less.