Patent ID: 9337801
Filing Date: 2016-05-10
CPC Classification: H01L,H03B,H03H

Claim Text:
1. A vibration element comprising: a substrate that includes a first region having a vibration region that vibrates with a thickness shear vibration, and a second region that is integrated with a pheriphery of the first region and has a thickness larger than that of the first region, the substrate having a length along a first direction and a width along a second direction perpendicular to the first direction in a plan view, wherein the periphery of the first region includes wherein the second region includes wherein when the length of the substrate along the first direction is L and the width of the substrate along the second direction is W, L and W are satisfied by the following formulas: wherein when a maximum size of the second thick section along the first direction is L wherein when a maximum size of the third thick section along the second direction is L