| 摘要 |
A crystal oscillator includes a base, a crystal thin-film formed on the base by epitaxial growth, a vibrating reed portion formed by processing the crystal thin-film, and excitation electrodes for vibrating the vibrating reed portion. At least one of the excitation electrodes may be formed by depositing a metal. The material for the base may include a single-element semiconductor, a compound semiconductor, and an oxide. When a semiconductor is used for the base, a semiconductor circuit may be provided to the base to form a module including a crystal oscillator. |
