Patent ID: 7157396
Filing Date: 2007-01-02
Classification: B32B,C04B,H01G

Abstract:
1. A method of production of a dielectric ceramic composition having: a main component including a dielectric oxide expressed by a composition formula {(Ca a first subcomponent including a V oxide, a second subcomponent including an Al oxide, a third subcomponent including an Mn oxide, and a fourth subcomponent having SiO a ratio of the subcomponents with respect to 100 moles of the main component being: first subcomponent: 0 mole<first subcomponent<7 moles (however, value converting V oxide to V second subcomponent: 0 mole<second subcomponent<15 moles (however, value converting Al oxide to Al third subcomponent: 0 mole<third subcomponent<5 moles (however, value converting Mn oxide to Mn element), fourth subcomponent: 0 mole<fourth subcomponent<20 moles (however, value converted to oxide), the method of production of a dielectric ceramic composition having: a step of mixing at least part of other materials of subcomponents excluding at least one or both of the material of the third subcomponent and the material of the fourth subcomponent with starting materials prepared for obtaining the material of the main component so as to prepare a pre-reaction material, a step of causing the prepared pre-reaction material to react so as to obtain a reacted material, and a step of mixing with the obtained reacted material the materials of the subcomponents excluded when preparing the pre-reaction material to obtain a dielectric ceramic composition.