Patent ID: 9570235
Date: 2017-02-14
CPC Classifications: B32B,C04B,H01B,H01G

Claim:
1. A multilayer ceramic capacitor, comprising: a multilayer body including a plurality of dielectric ceramic layers and a plurality of internal electrodes along an interface between the dielectric ceramic layers; and a plurality of external electrodes on an outer surface of the multilayer body and electrically connected to the internal electrodes; wherein each of the dielectric ceramic layers is mainly composed of a perovskite-type compound containing Ba and Ti, contains at least one of Nb and Ta, contains Mn and Al, and optionally contains Mg and a rare-earth element that is at least one of Y, Gd, Tb, Dy, Ho, and Er, with a content of Ti being 100 parts by mole; and (a) a total of Nb and Ta is from about 0.2 to about 1.5 part by mole; (b) Mg is not more than about 0.2 part by mole including 0 part by mole; (c) Mn is from about 1.0 to about 3.5 parts by mole; (d) Al is from about 1.0 to about 4.0 parts by mole; and (e) the rare-earth element is not more than about 0.05 part by mole including 0 part by mole; and an average number of particles per one layer of the dielectric ceramic layer is not more than 3.