| 摘要 |
<p>PROBLEM TO BE SOLVED: To simplify the process of manufacture by a method wherein a resistance film, comprising a ruthenium material fuse part and a resistance part are formed on a glaze film, a fuse part, which is thinner and narrower than the resistance part, and a glass film is formed as a protective film. SOLUTION: An SiO2 glass film is printed on the whole surface of an alumina insulated substrate 1, and a glaze film 2 is formed by firing. A stripe ruthenium oxide film is formed on the upper surface of the glaze film 2 as a resistance film, and the fuse part 4 in the center part, which pertinents to an electrode part 7, is thinly formed and a resistance part 8 is thickly formed. A trimming trace 9 is formed on the resistance part 8. An Ag electrode 10 is laminated on the part ranging from above the electrode part 7 to the side face of the substrate 1, a glass film 11 is covered, as a protective film, on the entire surface of the Ag electrode 10 and the exposed resistance film 3, and besides, a terminal electrode 12 is formed.</p> |
