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US 2019/0097601 A1Published application
Surface acoustic wave device
AssigneeHuawei Technologies Co., Ltd.
InventorZhuohui Chen
Life of this patent
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Abstract
A surface acoustic wave (SAW) device including a piezoelectric layer, a high acoustic velocity layer coupled to the piezoelectric layer, and at least one transducer. The SAW device may include a multi-layer graphene layer in the electrodes of the transducer and/or in a conductive layer that is coupled to the piezoelectric layer.
Claims16
A surface acoustic wave (SAW) device comprising:
- a piezoelectric layer;
- a high acoustic velocity layer coupled to the piezoelectric layer at a first surface of the piezoelectric layer;
- and
- at least one transducer between the piezoelectric layer and the high acoustic velocity layer, the at least one transducer including a first multi-layer graphene layer, the at least one transducer being configured to propagate a surface acoustic wave having an operating wavelength (λ) along the piezoelectric layer.
1 more element
A surface acoustic wave (SAW) device comprising:
- a piezoelectric layer;
- a high acoustic velocity layer coupled to the piezoelectric layer at a first surface of the piezoelectric layer;
- the piezoelectric layer and the high acoustic velocity layer being coupled to each other via a conductive layer;
- and
- at least one transducer coupled to a second surface of the piezoelectric layer, opposing the first surface of the piezoelectric layer, the at least one transducer including a first multi-layer graphene layer coupled to a metal layer, the at least one transducer being configured to propagate a surface acoustic wave having an operating wavelength (λ) along the piezoelectric layer.
2 more elements
Dependencies are inferred from the claim text.