Patent ID: 8995110
Filing Date: 2015-03-31
Classification: B32B,C04B,H01G,Y10T

Abstract:
1. A laminated ceramic capacitor having multiple dielectric layers, internal electrodes which are embedded between the dielectric layers and whose primary component is Cu, and external electrodes which are electrically connected to one end of each of the internal electrodes, said laminated ceramic capacitor characterized in that the dielectric layers contain a primary component constituted by a CaZrO 3 compound as well as auxiliary components including Mn, B, Si, and Li; formed in the dielectric layers are a primary phase constituted by the primary component, segregation phases which contain Ca and at least one of the auxiliary components, and secondary phases which contain at least Ca and Zr; a ratio of Ca to Zr in the secondary phases is smaller than a ratio of Ca to Zr in the primary phase; and there are no more than 30 secondary phases on average per 10-μm square in a cross-section of each of the dielectric layers sandwiched between the internal electrodes when those having a diameter of 100 nm or larger are counted.