Dielectric composition and electronic component

Patent metadata

Field	Value
Publication number	US-2016115084-A1
Application number	US-201514882067-A
Country	US
Kind code	A1
Filing date	Oct 13, 2015
Priority date	Oct 27, 2014
Publication date	Apr 28, 2016
Grant date	—

Abstract

A dielectric composition contains a complex oxide represented by the formula of xAO-yB′O-zB″ 2 O 5 as the main component, wherein A represents at least one element selected from the group made of Ba, Ca and Sr, B′ represents at least one element selected from the group made of Mg, Zn and Ni, B″ represents at least one element selected from the group made of Nb and Ta, and x, y and z meet the following conditions, x+y+z=1.000, 0.375≦x≦0.563, 0.250≦y≦0.500, and x/3≦z≦x/3+1/9. An electronic component using the dielectric composition is also provided.

First claim

1 . A dielectric composition comprising a complex oxide represented by the formula of xAO-yB′O-zB″ 2 O 5 as the main component, wherein,
A represents at least one element selected from the group consisting of Ba, Ca and Sr,
B′ represents at least one element selected from the group consisting of Mg, Zn and Ni,
B″ represents at least one element selected from the group consisting of Nb and Ta, and
x, y and z meet the following conditions,
x+y+z= 1.000,
0.375≦ x≦ 0.563,

0.250≦ y≦ 0.500, and

x/ 3≦ z≦x/ 3+1/9.

2 . The dielectric composition of claim 1 wherein,
a complex oxide represented by the formula in which x, y and z in the formula meet the following conditions is contained as the main component,
x+y+z= 1.000,
0.425≦ x≦ 0.525,

0.275≦ y≦ 0.409, and

x/ 3+0.025≦ z≦x/ 3+0.081.

3 . An electronic component comprising the dielectric composition of claim 1 .

4 . An electronic component comprising the dielectric composition of claim 2 .

Assignees

• Tdk Corp

Inventors

• Masaoka Raitarou
• Uchiyama Hiroki
• Fujii Shohei
• Ogasawara Noriko

Classifications

• C04B35/495 Primary

  based on vanadium, niobium, tantalum, molybdenum or tungsten oxides or solid solutions thereof with other oxides, e.g. vanadates, niobates, tantalates, molybdates or tungstates · CPC title

• H01B3/12

  ceramics · CPC title

• C04B2235/3251

  Niobium oxides, niobates, tantalum oxides, tantalates, or oxide-forming salts thereof · CPC title

• C04B2235/3213

  Strontium oxides or oxide-forming salts thereof · CPC title

• C04B2235/3215

  Barium oxides or oxide-forming salts thereof · CPC title