| 摘要 |
PURPOSE:To realize an ultra-thin piezoelectric oscillator unit by sealing up the case and the cover together without using any sealing medium. CONSTITUTION:The printing of Mo-Mn, W or the like is given to sealing surface 12a of case 12 made of the ceramic case prior to sintering of the ceramic case. And then the sintering is given to form the metalized layer with plating of Ni or the like. At the same time, the metalized layer is formed previously on sealing surface 13a of cover 13 made of the transparent material such as glass or the like through the sputtering, evaporation or print/baking and other methods. Thus piezoelectric oscillator 11 is attached to case 12, and then the cover made of the transparent material is put. Then the laser beam or the like is irradiated in the vacuum atmosphere to secure the fused adhesion for the metalized layers between the case and the cover. Thus the piezoelectric oscillator unit is formed. |
