| 摘要 |
PURPOSE:To simplify production processes by providing a pair of exciting electrodes and leading out electrodes on main surfaces in both sides of a crystal vibrator, where edge angles are formed on a curved surface which has curvature changed continuously, by evaporation-adhesion. CONSTITUTION:The thickness slip vibrator element piece obtained by cutting a crystallized crystal into a prescribed angle and subjecting the end in the longitudinal direction to bevel process 1A is polished to form all edge angles into a curved surface which has curvature changed continuously. Evaporation-adhesion masks are arranged in main face 11A and 11B sides of this element 11 to form exciting electrodes 12A and 12B and leadingout electrodes 13A and 13B. Since curvature of edge angle parts of element piece 11 is changed continuously, electrodes can be formed on not only main faces but also side faces by twice evaporation-adhesion from respective main faces 11A and 11B. Then, inter-electrode electrical conduction can be obtained by forming electrodes so that they may be overlapped in side parts, and respective electrodes can be arbitrarily connected electrically by proper electrode division. Consequently, the evaporation-adhesion process of electrodes can be simplified considerably. |
