The capacitor layer formation material which has BST induced electricity layer and the BST induced electricity layer, the printed circuit board which has the electrode circuit attaching capacitor layer constitution component and the built-in capacitor circuit

摘要

There being the temperature variation with heat generation, it designates that change of capacity density offers small induced electricity layer and the like as purpose. In order to achieve this purpose, particular BST induced electricity layer constitution balance of barium and strontium, Ba _{XSr1 XTiO3} (0.8 X1) satisfies relationship in the BST induced electricity layer which is used for the production of the capacitor circuit, adopts the BST induced electricity layer which designates that the thickness is 0.3 millimicron - 0.7 millimicrons as feature. In addition, lower part electrode cambium and the capacitor layer formation material etc of the printed circuit board which has upper electrode cambium on other surface side are offered on single sided side of particular BST induced electricity layer.