Laminated ceramic capacitor

Patent metadata

Field	Value
Publication number	US-9460857-B2
Application number	US-201514844042-A
Country	US
Kind code	B2
Filing date	Sep 3, 2015
Priority date	Mar 3, 2011
Publication date	Oct 4, 2016
Grant date	Oct 4, 2016

Abstract

A method of manufacturing a ceramic capacitor component that includes preparing a laminate body including first to third green sheets by stacking the first green sheets before applying conductive paste, stacking the second green sheets with conductive paste applied thereon on the first green sheets, and stacking the third green sheets before applying conductive paste on the second green sheets; preparing fourth green sheets from a raw material that does not contain V 2 O 5 ; providing the fourth green sheets onto four surfaces of the laminate body other than end surfaces of the laminate body to form a main body; firing the main body; and applying and baking a Cu paste onto the four surfaces of the main body and the end surfaces of the main body.

First claim

The invention claimed is:

1. A method of manufacturing a ceramic capacitor component, the method comprising:
preparing a laminate body having four surfaces and opposed end surfaces, the laminate body including first to third green sheets formed from a raw material including V by:
stacking the first green sheets before applying conductive paste;
stacking the second green sheets with conductive paste applied thereon on the first green sheets; and
stacking the third green sheets before applying conductive paste on the second green sheets;

preparing fourth green sheets from a raw material that does not contain V 2 O 5 ;
providing the fourth green sheets onto the four surfaces of the laminate body other than the end surfaces of the laminate body to form a main body;
firing the main body to form a fired main body having four main body surfaces and opposed main body end surfaces; and
applying and baking a Cu paste onto the four main body surfaces and the main body end surfaces.

2. The method of manufacturing a ceramic capacitor component according to claim 1 , wherein the fourth green sheets are pressure bonded onto the four surfaces of the laminate body.

3. The manufacturing method for a ceramic capacitor component according to claim 1 , wherein the fourth green sheets contain, as a main constituent, a perovskite compound represented by a chemical formula ABO 3 , and the fourth green sheets in the laminate body contain 0.01 parts by mol of V with respect to 100 parts by mol of B.

4. The manufacturing method for a ceramic capacitor component according to claim 1 , wherein the first to fourth green sheets contain, as their main constituent, a perovskite compound represented by a chemical formula ABO 3 , wherein A is at least one of Ba, Sr, and Ca, and B is at least one of Ti, Zr, and Hf.

5. The manufacturing method for a ceramic capacitor component according to claim 4 , wherein the perovskite compound is BaTiO 3 .

6. The manufacturing method for a ceramic capacitor component according to claim 3 , wherein the perovskite compound is BaTiO 3 .

Assignees

• Murata Manufacturing Co

Inventors

• Oguni Toshimi

Classifications

• C04B2237/346

  Titania or titanates · CPC title

• B32B18/00

  Layered products essentially comprising ceramics, e.g. refractory products · CPC title

• C04B2235/6582

  Hydrogen containing atmosphere · CPC title

• C04B2235/3418

  Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint · CPC title

• H01G4/1218

  based on titanium oxides or titanates (H01G4/1245 takes precedence) · CPC title