| 摘要 |
PROBLEM TO BE SOLVED: To constitute a surface mount type crystal oscillator thin and to facilitate temperature characteristic adjusting operation by providing a case- contained crystal vibrator fitted to a flexible substrate, electronic components fitted on the other surface of the substrate, and a rigid frame body which is adhered to the other surface while surrounding the electronic components, etc. SOLUTION: One flexible substrate 1 having wiring patterns formed on both its surfaces is used and the case-contained crystal vibrator 2 which is formed in a different process is fitted to its one surface, the electronic components are fitted to the other surface, and the outer periphery is surrounded with the rigid frame body 4 having a wiring pattern corresponding to the flexible substrate 1. Consequently, the crystal vibrator 2 and electronic components are mounted on the different surfaces of the flexible substrate 1 to the electronic components having effect on the characteristics of the crystal vibrator 2. Further, the case-contained crystal vibrator 2 which is manufactured in the different process and has its function guaranteed is used, so defects caused when the crystal vibrator 2 is fitted can be reduced.
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