Patent ID: 7968486
Filing Date: 2011-06-28
Classification: B82Y,C01G,C01P,C04B,H01G

Abstract:
1. A dielectric ceramic, comprising: barium titanate; magnesium, a molar ratio of the magnesium to the barium in the dielectric ceramic is in a range of 0.01 to 0.06; yttrium, a molar ratio of the yttrium to the barium in the dielectric ceramic is in a range of 0.0014 to 0.06; manganese, a molar ratio of the manganese to the barium in the dielectric ceramic is in a range of 0.0002 to 0.03; ytterbium, a mass ratio of the ytterbium to the barium titanate is in a range of 3.6 to 52.1 parts by mass of Yb a plurality of crystal grains comprising the barium titanate as a main component, wherein boundaries of the crystal grains are located between or among the crystal grains, and wherein an average diameter of the crystal grains is in a range of 0.05 μm to 0.2 μm.