Back to results
US 12,628,564 B2Granted
Crystal element, crystal device, electronic equipment, and method for manufacturing crystal element
AssigneeKYOCERA Corporation
InventorsKoki Honda, Seiichiro Namikawa, Shogo Nakagawa
Life of this patent
Estimating the term…
Abstract
A crystal element includes a vibration part, a holding part, an electrode part, and a recess that corresponds to a recess and/or protrusion. The vibration part has a pair of vibration-part main surfaces. The holding part is formed integrally with the vibration part to be connected to an outer edge of vibration part and has a pair of holding-part main surfaces and holding-part side surfaces. The electrode part is provided at the vibration-part main surfaces. The recess is located at the holding-part side surfaces.
Claims14
A crystal element comprising:
- a vibration part having a pair of vibration-part main surfaces;
- a holding part formed integrally with the vibration part to be connected to an outer edge of the vibration part and having a pair of holding-part main surfaces and a holding-part side surface;
- an electrode part provided at the vibration-part main surfaces;
- and
- a recess and/or protrusion provided at the holding-part side surface, and is distal from and extends parallel to the pair of holding-part main surfaces so as to reduce a secondary vibration that occurs along with a primary vibration in the vibration part.
2 more elements
Dependencies are inferred from the claim text.