| 摘要 |
PURPOSE:To miniaturize and thin the titled element, while strengthening the element itself by forming an electrode film extending over the side surface of a substrate and electrically connecting the main surface of the electrode plate directly to a printed wiring. CONSTITUTION:A magnetism sensitive film 34 is shaped on the main surface of a nonmagnetic ceramic substrate 31, and a protective film 32 having double layer structure consisting of a lower layer in alumina coating a junction section betwenn the magnetism sensitive film and an electrode film and the magnetism sensitive film and an upper layer composed of a resin is formed. The magnetism sensitive film 34 is directed toward a printed substrate 41 to which a printed wiring 40 is executed, and the electrode film 33 is brought directly into contact with the printed wiring and connected electrically by solder 43, etc. Since the electrode film is formed extending over the side surface of the substrate and the main surface of the electrode film is brought directly into contact with the printed wiring, molding-sheathing is unnecessitated, the joining of the ceramic substrate and the electrode film is strengthened, and nonmagnetic ceramics having excellent mechanical strength is used as the substrate, thus increasing the strength of element itself, even miniaturizing and thinning an element. |
