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US 12,574,001 B2Granted
Bulk filter
AssigneeGuangdong Zhineng Technologies, Co. Ltd.
InventorsZilan Li, Lezhi Wang
Life of this patent
Estimating the term…
Abstract
A filter (100) includes a piezoelectric layer (105); a first electrode (108), disposed at a first vertical face of the piezoelectric layer (105) and configured to receive an electric signal; and a second electrode (109), disposed at a second vertical face of the piezoelectric layer (105) and configured to output an electric signal, where the first vertical face and the second vertical face are two opposite sides of the piezoelectric layer (105).
Claims22
A filter, comprising:
- a piezoelectric layer;
- a first electrode, disposed at a first vertical face of the piezoelectric layer and configured to receive an electric signal;
- a second electrode, disposed at a second vertical face of the piezoelectric layer and configured to output an electric signal, wherein the first vertical face and the second vertical face are two opposite sides of the piezoelectric layer;
- and
- a substrate comprising a vertical interface;
- wherein a material of the piezoelectric layer is AlN or ZnO and the piezoelectric layer is formed by epitaxial growth of the vertical interface.
3 more elements
Dependencies are inferred from the claim text.