Resonator plate capable of excitation to thickness shear vibrations
AssigneeSiemens Aktiengesellschaft
InventorWerner Mattuschka
Life of this patent
Estimating the term…
Abstract
A piezoelectric resonator plate capable of excitation to thickness shear vibrations is provided on each of its large surfaces with a respective excitation electrode and is provided, at least in partial regions of its border, a thickness decreasing in the direction of the border of the plate in the form of a beveling, whereby in the region of such a border beveling, respectively, a connection member contacts one of the excitation electrodes.
Claims10
A piezoelectric resonator for excitation into thickness shear vibrations, comprising:
- a body of piezoelectric material including
- a pair of major spaced-apart surfaces;
- a pair of electrodes carried on and completely covering respective ones of said major surfaces;
- a pair of border regions adjacent said major surfaces and free of electrode coating, each of said border regions extending from one of said major surfaces toward the other major surface and shaped such that there is a longitudinal offset of at least portions of said major surfaces;
- and
- a pair of connection members each comprising U-shaped clips and each engaging a respective electrode on a major surface and a respective border region.
A piezoelectric resonator for excitation into thickness shear vibrations, comprising:
- a body of piezoelectric material including
- a pair of major spaced-apart surfaces;
- a pair of electrodes carried on and completely covering respective ones of said major surfaces;
- a pair of border regions adjacent said major surfaces and on the same edge of said body, each of said border regions extending from one of said major surfaces toward the other major surface and shaped such that there is a longitudinal offset of at least portions of said major surfaces and the electrodes carried thereon;
- and
- a pair of connection members each engaging a respective electrode and a respective border region.
A piezoelectric resonator for excitation into thickness shear vibrations, comprising:
- a body of piezoelectric material including
- a pair of major spaced-apart surfaces;
- a pair of electrodes carried on respective ones of said major surfaces;
- a pair of border regions adjacent said major surfaces, each of said border regions extending from one of said major surfaces toward the other major surface and having a stepped-shaped such that there is a longitudinal offset of at least portions of said major surfaces and the electrodes carried thereon;
- and
- a pair of connection members each engaging respective electrode and a respective border region.
Dependencies are inferred from the claim text.