Patent ID: 9136058
Filing Date: 2015-09-15
Classification: H01G

Abstract:
1. A laminated ceramic electronic component comprising: a laminated body having a plurality of stacked ceramic layers and internal electrode layers between the ceramic layers, wherein the internal electrode layers have a plurality of ceramic columnar members contained therein, the columnar members having base ends located at an interface between the ceramic layers and the internal electrode layers, and having tips located within the internal electrode layers, and when an observation is made with the use of an electron microscope while focusing on a polished cross section of the laminated body in a stacking direction, with the internal electrode layers exposed at the cross section and then dissolved and removed by chemical etching, (1) the columnar members have the base ends joined with the ceramic layers, and have the tips located in a range of 20% or more and 90% or less of a thickness of the internal electrode layers, (2) the columnar members have a width of 0.8 μm or less in 50% or more from the base end to the tip, and (3) the columnar members are present at a rate of one or more per 10 μm in length of the internal electrode layers.