| 摘要 |
PURPOSE:To form a metal electrode on a ceramic substrate plate at a low cost by using an activated paste for electroless plating consisting of a compound or a fine powder of a specific metal, a photosensitive high molecular resin, a photosensitive agent and a solvent. CONSTITUTION:In forming an electrode on a ceramic electronic parts by electroless plating, an activated paste for electroless plating prepared by mixing 0.01-10% one ore more of a fine powder or a compound of a metal selected from a noble metal such as Pd, Pt, Ag, Au or the like and a base metal such as Ni, Co, Fe, Cu, Zn or the like as the metal, 2-35% photosensitive high molecular resin such as polyvinyl alcohol or the like, 0.05-1% photosensitive agent such as ammonium bichromate or the like and 70-99% solvent such as alcohol or the like is used. This paste is coated on a ceramic substrate plate, exposed to ultraviolet irradiation and developed and, thereafter, heated at 350-900 deg.C to precipitate a metal particle on said ceramic and, further, electroless plating is applied to form a metal electrode. |
