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US 10,594,293 B2Granted
Filter including bulk acoustic wave resonator
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsYoon Sok Park, Jung Woo Sung, Won Kyu Jeung
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Abstract
A filter includes a multilayer structure having films configured as bulk acoustic wave resonators; a wiring line connected to the bulk acoustic wave resonators; a cap coupled to the multilayer structure on a bonding line; and the filtering characteristics of the filter being configured through a mutual inductance between the wiring line and the bonding line.
Claims20
A filter, comprising:
- a multilayer structure comprising films configured as bulk acoustic wave resonators;
- a wiring line connected to the bulk acoustic wave resonators;
- and
- a cap coupled to the multilayer structure on a bonding line,
- wherein filtering characteristics of the filter are configured through a mutual inductance between the wiring line and the bonding line, and a position of a pole, determining a frequency band, is changed based on the mutual inductance.
2 more elements
A filter, comprising:
- series resonators disposed between a signal input terminal and a signal output terminal;
- shunt resonators disposed between each of the series resonators and a ground;
- and
- an inductor disposed between one of the shunt resonators and the ground,
- wherein the inductor is configured through a mutual inductance between a bonding line formed by a cap, accommodating the series resonators and the shunt resonators therein, and a wiring line connected to one of the shunt resonators, and
- wherein a position of a pole, determining a frequency band, is changed based on the mutual inductance.
3 more elements
A method to manufacture a filter, comprising:
- forming a multilayer structure comprising films configured as bulk acoustic wave resonators;
- forming a wiring line connected to the bulk acoustic wave resonators;
- forming a cap coupled to the multilayer structure on a bonding line;
- and
- determining and forming filtering characteristics of the filter based on mutual inductance between the wiring line and the bonding line,
- wherein a position of a pole, determining a frequency band, is changed based on the mutual inductance.
3 more elements
Dependencies are inferred from the claim text.