Patent ID: 9382162
Filing Date: 2016-07-05
CPC Classification: C04B,H01G

Claim Text:
1. A dielectric composition, comprising a dielectric grain having a perovskite structure represented by ABO 3 , when a minor axis of the dielectric grain is a conceptual line between two peak points of the dielectric grain in a shorter distance thereof, and a major axis of the dielectric grain is a conceptual line between two peak points of the dielectric grain in a longer distance thereof, a center of the dielectric grain is an intersection point of the minor axis and the major axis, wherein, when an imaginary line is drawn in a direction from the center of the dielectric grain to a grain boundary thereof, a content of rare earth elements in a center portion of the dielectric grain is 0.05 to 2.0 at %, content of rare earth elements across an entire region corresponding to 75 to 95% of the dielectric grain from the center of the dielectric grain is 0.5 to 2.5 at %, based on 100 at % of a B-site ion, and the content of rare earth elements in the region corresponding to 75 to 95% of the dielectric grain from the center of the dielectric grain is 0.05 to 2.0 times a content of rare earth elements in the center portion of the dielectric grain.