Patent ID: 7715172
Filing Date: 2010-05-11
Classification: H01G

Abstract:
1. A multilayer capacitor comprising: a capacitor body including a plurality of layered dielectric layers and having opposed end surfaces and opposed main surfaces; a first external electrode provided on one of the end surfaces of the capacitor body and including a first wraparound portion extending on one of the main surfaces of the capacitor body and a second wraparound portion extending on the other main surface thereof; a second external electrode provided on the other end surface of the capacitor body and including a third wraparound portion extending on the one main surface of the capacitor body and a fourth wraparound portion extending on the other main surface thereof; a first internal electrode group including internal electrodes provided between the dielectric layers and being connected to the first external electrode; and a second internal electrode group including internal electrodes provided between the dielectric layers and being connected to the second external electrode; wherein when a portion of the plurality of dielectric layers, which is sandwiched between the internal electrodes in the first internal electrode group and the internal electrodes in the second internal electrode group and in which a capacitance is produced, is defined as effective layers, the volume proportion of the effective layers in a first area sandwiched between the first wraparound portion and the second wraparound portion in the capacitor body is set to at least about 10%, the volume proportion of the effective layers in a second area occupying a lower half toward the other main surface in the first area is set to about 15% or less, the volume proportion of the effective layers in a third area sandwiched between the third wraparound portion and the fourth wraparound portion in the capacitor body is set to at least about 10%, and the volume proportion of the effective layers in a fourth area occupying a lower half toward the other main surface in the third area is set to about 15% or less; and external dimensions of the multilayer capacitor including the capacitor body, the first external electrode, and the second external electrode are about 1.6±0.1 mm in length by about 0.8±0.1 mm in width by about 0.8±0.1 mm in thickness.