Patent ID: 8456800

Claim:
A multilayer ceramic electronic component comprising an element body in which a dielectric layer and an electrode layer are stacked, wherein: said dielectric layer has a dielectric ceramic composition including a compound expressed by a formula ABO3, where A is Ba alone, or Ba and at least one selected from Ca and Sr, and B is Ti alone, or Ti and at least one selected from Zr and Hf, and including 0.75 to 2.0 moles of an oxide of Mg in terms of MgO, 0.4 to 1.0 mole of an oxide of R, where R is at least one selected from the group consisting of Y, Dy, Ho, Yb, Lu, Gd and Tb, in terms of R2O3, and 0.4 to 0.8 mole of an oxide containing Si in terms of SiO2, per 100 moles of said compound; said element body has an electrode missing portion in which the electrode layer is not formed in a region where the electrode layer is supposed to be formed; a segregation phase containing Mg is formed in at least a part of said electrode missing portion; a coverage, defined as a ratio of a line length of a region where the electrode layer is actually formed with respect to a line length of the region where the electrode layer is supposed to be formed, is 60 to 90%; and relations of 0.3 μm≦t1<2.0 μm and 0.3 μm≦t2<1.0 μm are fulfilled when a thickness of said dielectric layer is defined as “t1” and a thickness of said electrode layer is defined as “t2”.