| 摘要 |
PURPOSE: To obtain a ceramic multilayer wiring board by the use of copper conductors as wiring materials wherein the resistance values of wiring conductors are low and adhesive force between a glass ceramic and the copper conductors is excellent. CONSTITUTION: Zirconium and hafnium are added to copper paste. Zirconium and hafnium form stable oxides easily in a sintering process, and the oxides strengthen the bond between oxides of copper and a glass ceramic. Accordingly, such a constitution makes it possible to obtain a ceramic multilayer wiring board wherein the resistance values of wiring conductors are low and the adhesive force between the glass ceramic and copper conductors are excellent. Consequently, it becomes possible to obtain a ceramic multilayer wiring board wherein the resistance values of wiring conductors are low and adhesive force between the glass ceramic and copper conductors is excellent. |
