Radio frequency module
AssigneeMurata Manufacturing Co., Ltd.
InventorsYuji Takematsu, Tetsuro Harada, Hiroaki Takaoka, Hiroki Deguchi
Life of this patent
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Abstract
A radio frequency module includes a module substrate, a plurality of passive components disposed on a main surface of the module substrate, and a filter component disposed over the plurality of passive components, wherein the filter component includes series arm resonators that constitute an acoustic wave filter, the series arm resonator is connected between the series arm resonators, and a region of the filter component formed with the series arm resonator does not overlap the plurality of passive components and at least a part of the other region of the filter component overlaps at least a part of each of the plurality of passive components in a plan view of the module substrate.
Claims15
A radio frequency module comprising:
- a module substrate;
- a plurality of passive circuit components on a main surface of the module substrate;
- a first filter circuit component above the plurality of passive circuit components;
- a resin covering at least a part of the plurality of passive circuit components and the first filter circuit component;
- and
- a metal electrode layer covering at least a part of a surface of the resin,
- wherein the first filter circuit component comprises a first acoustic wave filter, the first acoustic wave filter comprising a first series arm resonator, a second series arm resonator, and a third series arm resonator, the second series arm resonator being connected between the first series arm resonator and the third series arm resonator,
- wherein in a plan view of the module substrate, the second series arm resonator does not overlap the plurality of passive circuit components, and a region of the first filter circuit component not comprising the second series arm resonator overlaps at least a part of each of the plurality of passive circuit components, and
- wherein at least a part of the metal electrode layer is physically connected to at least a part of a first main surface of the first filter circuit component, the first main surface being at an opposite side to a second main surface of the first filter circuit component, the second main surface facing the main surface of the module substrate.
Dependencies are inferred from the claim text.