| 摘要 |
PROBLEM TO BE SOLVED: To heighten adhesion of an electrode at the inner surface of an element, particularly a closed end face part so as to prevent the generation of bulging and improve yield. SOLUTION: In a method of forming a ceramic molding forming an element body by a rubber pressing method, a tip face 25 out of the surface of a male mold 22 for forming the inner surface 2b of the molding 1b is made Ra: 0.35μm or more so as to have the roughened surface compared to other parts. At the time of forming the inner surface 2b of the molding 1b by the male mold 22, the inner surface is roughened at the same time. When the molding 1b is baked, surface roughness is slightly improved, but a closed end face part 5b is roughened on the surface at a nearly fixed rate compared with the other parts. Afterwards, when an electrode is formed by electroless plating, the electrode at the closed end face part is higher in adhesion than the other parts. |
