The printed circuit board which has the built-in capacitor which can making use of the production method and that capacitor layer formation material of the capacitor layer formation material and the capacitor layer formation material

摘要

Improvement of temperature characteristic of the oxide induced electricity layer which has perovskite structure and offer of the capacitor layer formation material for the printed circuit board which can achieve the reduction of leak electric current simultaneously are designated as purpose. In order to achieve this purpose, the aforementioned induced electricity layer 2 manganese the manganese less oxide induced electricity layer adopts the capacitor layer formation material 1 which designates that it is double layer system oxide induced electricity layer of 3 which is not included and manganese content oxide induced electricity layer 4 as feature upper electrode cambium in the capacitor layer formation material which has induced electricity layer 2 with 5 and lower part electrode cambium 6. The method and the like of forming manganese less oxide induced electricity layer and manganese content oxide induced electricity layer and, as a production method of this capacitor layer formation material, making use of either physical vapor deposition method, vapor phase chemical reaction method or sol - gel methods is adopted.