US Patent 11183986 Resonator element, resonator device, electronic apparatus, and vehicle

A resonator element includes a quartz crystal substrate including a first surface along an X axis which is an electrical axis, a second surface along the X axis, and a side surface, a first excitation electrode, a second excitation electrode, a first coupling electrode, a second coupling electrode, a first extraction electrode that couples the first excitation electrode and the first coupling electrode, and a second extraction electrode that couples the second excitation electrode and the second coupling electrode. In plan view, a virtual extension region is obtained by extending the first excitation electrode along the X axis.