| 摘要 |
PROBLEM TO BE SOLVED: To provide a surface mounting type crystal oscillator capable of minimizing the flat shape of a container even if a crystal resonator element is arranged on the surface of the container and an IC chip and an electronic part are arranged at the bottom face side cavity part of the container. SOLUTION: This surface mounting type crystal oscillator consists of a container 1 where a cavity part 10 is formed on the bottom, a crystal resonator 2 mounted on the surface side of the container 1, an IC chip 3 mounted on the cavity part 10, chip-shaped electronic parts 4 and 5 to be connected to the IC chip 3 and external terminal electrodes 11 to 14 which are arranged so as to be connected to the IC chip 3 and/or the parts 4 and 5 at respective bottom corners of the container. And, the cavity part 10 is formed so as to expand in a flat area between the two adjacent external terminal electrodes 11 to 14.
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