Patent ID: 7781360
Filing Date: 2010-08-24
Classification: C04B,H01G,H01L,H05K

Abstract:
1. A dielectric porcelain composition comprising (A) 100 parts by weight of a barium titanate-based dielectric material selected from the group consisting of (i) barium titanate, (ii) barium titanate with up to 30 mol % of the barium substituted by one of strontium, calcium and magnesium, (iii) barium titanate with up to 30 mol % of the titanium substituted by zirconium, and (iv) barium titanate with up to 30 mol % of the barium substituted by one of strontium, calcium and magnesium, and with up to 30 mol % of the titanium substituted by zirconium, and (B) 4 to 10 parts by weight in total of Bi 2 O 3 and as sub-components, wherein the molar ratio of CuO to Bi 2 O 3 ranges from 1.5:1.0 to 1.0:5.0.