Patent ID: 8575052
Filing Date: 2013-11-05
Classification: C04B,H05K

Abstract:
1. A dielectric ceramic comprising: a main component which contains Mg additives which contain a zinc oxide, a boron oxide, an alkaline earth metal oxide, and a glass component, wherein: in X-ray diffraction, a peak intensity ratio I the glass component is SiO a content of the zinc oxide, as determined by calculating a mass of the zinc oxide relative to ZnO, is from 8.0 parts by mass to 20 parts by mass relative to 100 parts by mass of the main component, a content of the glass component, as determined by calculating a mass of the glass component relative to SiO a content of the boron oxide, as determined by calculating a mass of the boron oxide relative to B a content of the alkaline earth metal oxide, as determined by calculating a mass of the alkaline earth metal oxide relative to RO, where R represents an alkaline earth metal element, is from 1.0 parts by mass to 4.0 parts by mass relative to 100 parts by mass of the main component, and the dielectric ceramic has a relative density of 96% or greater.