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WO/2023/209138A1 |
The invention relates to an elastic surface wave device (100) comprising a piezoelectric layer (120), electrodes (150A, 150B) embedded in the piezoelectric layer, and a substrate (130) carrying the piezoelectric layer and the electrodes,...
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WO/2023/208449A1 |
The invention relates to a volume acoustic device (100) comprising a first electrode (1a), a second electrode (2a), and a piezoelectric element (3a) arranged between the first electrode and the second electrode, wherein the piezoelectric...
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WO/2023/210393A1 |
Provided is an elastic wave filter wherein the heat occurring at an Interdigital Transducer (IDT) electrode can be efficiently dissipated and wherein the occurrence of the unnecessary capacitance between the IDT electrode and a reflector...
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WO/2023/208685A1 |
The invention relates to a volume-acoustic device comprising a first electrode (1a; 1b) and a second electrode (2a; 2b); a piezoelectric element (3) arranged between the first electrode (1a; 1b) and the second electrode (2a; 2b), wherein...
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WO/2023/212100A1 |
Various embodiments of a magneto-acoustic spin-wave signal processing system are provided. In one embodiment, a system includes an acoustic wave transducer configured to produce surface acoustic waves in a plane of a magnetostrictive mat...
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WO/2023/210267A1 |
A reception device (1) comprises: an orthogonal mixer (10) which performs frequency conversion to convert a high-frequency signal into an I signal and a Q signal, which have a phase difference of 90 degrees therebetween; and a SAW device...
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WO/2023/211372A2 |
An apparatus is disclosed for bridge filters. In example aspects, the apparatus includes a filter circuit with a current balun and a filter core. The current balun includes a first terminal coupled to a first port of the filter circuit, ...
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WO/2023/210762A1 |
An acoustic wave element of the present disclosure comprises a support member, a piezoelectric body layer provided on the support member, and a functional electrode provided on the piezoelectric body layer. The support member is provided...
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WO/2023/210764A1 |
An acoustic wave element of the present disclosure comprises a supporting member, a piezoelectric layer provided to the supporting member, and an electrode pattern provided to the piezoelectric layer. The electrode pattern includes funct...
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WO/2023/207474A1 |
The present application relates to a filter, a multiplexer, a radio frequency front-end module, and a preparation method for a filter. The filter comprises a substrate, a piezoelectric layer, a first lower electrode, a second lower elect...
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WO/2023/202597A1 |
Disclosed in the embodiments of the present application is a surface acoustic wave resonator, comprising: a piezoelectric substrate (10); an interdigital transducer structure (20), which is located on one side of the piezoelectric substr...
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WO/2023/204245A1 |
An elastic wave device 10 comprises: a support member 20 having an energy confinement layer (for example, a cavity 21) on one main surface; a piezoelectric layer 30 provided to the one main surface of the support member 20 so as to cover...
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WO/2023/204206A1 |
The present invention reduces spurious in an acoustic wave device and relaxes stress in a piezoelectric layer of the acoustic wave device. This acoustic wave device has a support substrate, a piezoelectric layer located on the support su...
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WO/2023/204250A1 |
An elastic wave device 10 comprises: a support member 20 that has a cavity portion 23 in one main surface thereof; a piezoelectric layer 21 that is provided on the one main surface of the support member 20 so as to cover the cavity porti...
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WO/2023/201475A1 |
A surface acoustic wave filter, comprising: a piezoelectric layer (105), which is configured to convert mechanical energy and electrical energy into each other, wherein the piezoelectric layer (105) comprises a first vertical interface (...
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WO/2023/204272A1 |
An elastic wave device of the present disclosure comprises: a serial arm connected between an input terminal and an output terminal; at least one parallel arm connected between the serial arm and a ground potential; and a plurality of el...
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WO/2023/199862A1 |
The present invention improves isolation between signals when asynchronous communication is performed by TDD. A high frequency module (1) is provided with a mounting substrate (4), a first acoustic wave filter, a second acoustic wave fil...
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WO/2023/199861A1 |
The present invention improves the heat dissipation of two transmission filters of a high-frequency module that transmits two transmission signals that make it possible to achieve simultaneous communication. A high-frequency module (1) c...
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WO/2023/200670A1 |
A filter device is provided that includes a substrate having a surface and a piezoelectric plate (610) supported by the substrate. A plurality of interdigital transducers, IDTs, for multiple resonators are provided that each have interle...
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WO/2023/199863A1 |
The present invention suppresses degradation of the filter characteristics of each of a first transmission filter and a second transmission filter due to temperature increases in the first transmission filter and the second transmission ...
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WO/2023/199663A1 |
This high frequency circuit (1) comprises: an antenna connection terminal (100); an acoustic wave filter (21); a power amplifier (11) connected to the acoustic wave filter (21); a temperature sensor (61) that measures the temperature of ...
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WO/2023/197382A1 |
The present invention provides a Lamb wave resonator. The Lamb wave resonator comprises a piezoelectric substrate, a first interdigital transducer, and a second interdigital transducer; both the first interdigital transducer and the seco...
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WO/2023/199860A1 |
The present invention suppresses degradation of the characteristics of a filter. In a filter (1) of a high-frequency module (500), a first chip (10) is disposed on a mounting substrate (9), and a second chip (20) is disposed on the first...
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WO/2023/199837A1 |
An elastic wave device 10 comprises: a support member 20 having a cavity 23 in one main surface thereof; a piezoelectric layer 21 provided on the one main surface of the support member 20 so as to cover the cavity 23; and a functional el...
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WO/2023/193499A1 |
The present application provides a surface acoustic wave resonator and a surface acoustic wave filter. The surface acoustic wave resonator comprises interdigital electrodes; each interdigital electrode comprises a first bus bar and a sec...
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WO/2023/195513A1 |
An elastic wave device 10 comprises an elastic wave element 11, a solder bump 12 electrically connected to the elastic wave element 11, and a terminal electrode 13 provided between the elastic wave element 11 and the solder bump 12. The ...
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WO/2023/195409A1 |
An elastic wave device according to the present invention comprises a support substrate that has a cavity in one principal surface, a piezoelectric layer that is provided on the one principal surface of the support substrate, and a funct...
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WO/2023/195523A1 |
An elastic wave device according to the present disclosure comprises: a support member having a cavity in one main surface; a piezoelectric layer provided on the one main surface of the support member; and an IDT electrode provided to th...
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WO/2023/189074A1 |
Provided is an elastic wave device which can improve heat resistance and electric power resistance of an IDT electrode. The elastic wave device 1 is provided with: a piezoelectric substrate 2; and an IDT electrode 3 provided on the pie...
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WO/2023/190370A1 |
Provided is an elastic wave device capable of suppressing unwanted waves. An elastic wave device 10 according to the present invention comprises: a supporting member including a supporting substrate; a piezoelectric layer 14 provided o...
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WO/2023/187050A1 |
The invention discloses a piezoelectric-on-insulator (POI) substrate comprising: a carrier substrate (102), in particular a substrate based on silicon; a piezoelectric layer (108), in particular a layer of lithium tantalate (LTO) or of l...
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WO/2023/190673A1 |
Provided is a bulk elastic wave filter device having a good heat dissipation property. The bulk elastic wave filter device comprises: an acoustic multilayer film that includes, on a supporting substrate, a first layer and a second layer ...
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WO/2023/190654A1 |
Provided is an elastic wave device wherein unnecessary waves can be suppressed. An elastic wave device 10 according to the present invention comprises: a support member that includes a support board; a piezoelectric layer 14 that is pr...
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WO/2023/189103A1 |
The objective of the present invention is to provide a composite substrate having excellent durability. A composite substrate according to an embodiment of the present invention includes, in the stated order, a piezoelectric layer, a ref...
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WO/2023/191070A1 |
This elastic wave device comprises a plurality of elastic wave resonators. Each of the plurality of elastic wave resonators includes: a support board; a piezoelectric layer that is provided on the support board; and a function electrode ...
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WO/2023/188760A1 |
According to the present invention, a detection device comprises: a substrate 10; a first piezoelectric thin film resonator 11a that comprises a first lower electrode 12a that is provided on the substrate, a first piezoelectric layer 14a...
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WO/2023/185554A1 |
The embodiments of the present application relate to the technical field of semiconductors. Provided are a surface acoustic wave filter, an apparatus, and an electronic device, which are used for improving the performance of the surface ...
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WO/2023/186168A1 |
The present application belongs to the technical field of micro-electro-mechanical systems. Disclosed are a resonator, an electronic component and a resonant system. The resonator comprises a first sub-resonator and a plurality of second...
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WO/2023/190700A1 |
This elastic wave device 10 comprises: a support member 20 that has a non-penetrating cavity 23 on one of the two main surfaces thereof; a piezoelectric layer 21 that is provided on the one main surface of the support member 20 so as to ...
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WO/2023/190721A1 |
This elastic wave device comprises a support substrate containing a cavity portion, a piezoelectric layer provided on the support substrate, a functional electrode that is provided on the piezoelectric layer and at least partially overla...
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WO/2023/188818A1 |
The present invention provides a vibration element having a structure which can efficiently convert an electric field into a magnetic field or vice versa. The vibration element according to the present technology comprises a vibration ...
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WO/2023/186413A1 |
An apparatus is disclosed for a reconfigurable filter. In example aspects, the apparatus includes a filter circuit that has a first filter port (302-1) and a second filter port (302-2). The filter circuit includes a filter network (304),...
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WO/2023/190697A1 |
This elastic wave device 10 comprises: a support member 20 that has a cavity 23 on one of the two main surfaces thereof; a piezoelectric layer 21 that is provided on the one main surface of the support member 20 so as to cover the cavity...
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WO/2023/190677A1 |
Provided are a stress-relaxed acoustic multilayer film and a high-frequency filter device using the same. The acoustic multilayer film has two or more pairs of a first layer having a first specific acoustic impedance and a second layer h...
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WO/2023/189334A1 |
An elastic wave sensor 100 comprises: a piezoelectric substrate 10; a pair of comb electrodes 24a and 24b which are provided on the piezoelectric substrate 10 and have a plurality of electrode fingers 22a and 22b, spaces between adjacent...
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WO/2023/187030A1 |
The invention relates to a piezoelectric-on-insulator (POI) substrate (100) comprising a support substrate (102), in particular a silicon-based substrate, a piezoelectric layer (108), in particular a layer of lithium tantalate (LTO) or l...
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WO/2023/185371A1 |
The present application relates to a surface acoustic wave device, a packaging module, and a manufacturing method for a surface acoustic wave device. The surface acoustic wave device comprises a piezoelectric substrate, an IDT structure,...
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WO/2023/190656A1 |
Provided is an elastic wave device that, when used in a filter device, is capable of achieving suitable filter waveforms even if the size of the elastic wave device is not increased. An elastic wave device according to the present inve...
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WO/2023/188514A1 |
[Problem] To provide a joint body that enables improvement of a Q value of an elastic wave element. [Solution] A joint body 7 is provided with a support substrate 1 and a piezoelectric material layer 2C joined to the support substrate 1....
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WO/2023/190114A1 |
In the present invention, a first filter and a second filter are connected to a first hybrid and a second hybrid with a connection relationship in which, when signals are inputted to either one of a common terminal or a first terminal, s...
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