Patent ID: 8492301
Filing Date: 2013-07-23
Classification: C04B,H01G

Abstract:
1. A dielectric ceramic composition comprising: a compound having perovskite type crystal structure shown by a general formula ABO as subcomponents, with respect to 100 moles of said compound, 1.0 to 2.5 moles of an oxide of RA in terms of RA 0.2 to 1.0 mole of an oxide of RB in terms of RB 0.1 to 1.0 mole of an oxide of RC in terms of RC 0.8 to 2.0 moles of an oxide of Mg in terms of Mg; and 1.2 to 3.0 moles of an oxide including Si in terms of Si, wherein when contents of said oxide of RA, said oxide of RB and said oxide of RC with respect to 100 moles of said compound are defined as “α”, “β” and “γ”, respectively, said “α”, “β” and “γ” satisfy relations of 2.5≦(α/β)≦5.0 and 1.0≦(β/γ)≦10.0.