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WO/2023/246385A1 |
The present application relates to the technical field of preparation of heterogeneous integrated devices, and provides a structure of an acoustic wave filter, comprising: parallel resonators and series resonators. The parallel resonator...
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WO/2023/250159A1 |
Devices (e.g., resonators) comprising a single-crystalline material, and related systems and methods, are generally described.
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WO/2023/248558A1 |
The present invention provides an elastic wave device that can suppress unnecessary waves and that can suppress thermal stress. An elastic wave device 10 comprises: a piezoelectric substrate 11 that includes a piezoelectric layer 4 hav...
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WO/2023/248824A1 |
In this duplexer according to the present invention, a first filter connects a common terminal and a first terminal, and corresponds to a first pass band. A second filter connects the common terminal and a second terminal, and correspond...
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WO/2023/248636A1 |
Provided is an acoustic wave device that can suppress Rayleigh mode spurious responses without excessively increasing a fractional bandwidth value. An elastic wave device 1 comprises a support substrate 3, a silicon oxide layer 4 that ...
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WO/2023/248823A1 |
This filter device has a multilayer substrate, a chip mounted on the multilayer substrate, a first filter of which at least a portion is included in the chip, and a first hybrid coupler connected to the first filter. A portion of the fir...
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WO/2023/246515A1 |
The present application relates to the technical field of the preparation of heterogeneous integrated devices. Provided are a structure of a longitudinal leaky surface acoustic wave resonator, and a filter. The structure of an acoustic w...
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WO/2023/248815A1 |
In the present invention, the frequency characteristics of an elastic wave filter are improved. This elastic wave filter has a first elastic wave resonator. The width of the frequency band of the first elastic wave resonator is represent...
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WO/2023/243351A1 |
The present invention reduces spurious emissions. Provided is an elastic wave device comprising: a support substrate with a cavity formed therein; a piezoelectric substrate located above the support substrate and covering the cavity; and...
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WO/2023/244165A1 |
An apparatus is disclosed for implementing a surface-acoustic-wave, SAW, filter with dielectric material (134) disposed in a piezoelectric layer (132). In an example aspect, the apparatus includes a surface-acoustic-wave filter with a pi...
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WO/2023/241786A1 |
A surface acoustic wave resonator element (1) comprising a first conductive element (2), a second conductive element (3), and an active area (4). First electrodes (7) extend from said first conductive element (2) across a first interface...
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WO/2023/241828A1 |
A SAW resonator element (1) comprises conductive elements (2, 3), an active area (4) being arranged between said conductive elements (2, 3) and separated from each conductive element (2, 3) by an interface area (5, 6). Electrodes (9, 10)...
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WO/2023/243919A1 |
An embodiment provides a full transmission device for wide-angle mode conversion of elastic waves, which can implement mode conversion of elastic waves with high energy efficiency in a wide incident angle range by using a single filter. ...
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WO/2023/243519A1 |
Provided is a multiplexer in which heat dissipation of a series-arm resonator is improved and degradation of power tolerance is less likely to occur. A multiplexer 10 of this invention comprises a transmission filter 1A and a reception...
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WO/2023/236332A1 |
An acoustic resonator device (1) comprising a substrate (2) and a piezoelectric layer (3), such as LN membrane, sandwiched between a floating potential bottom electrode (6) and pairs of top electrodes (7) to which RF voltage is applied, ...
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WO/2023/236153A1 |
Clock distribution in an integrated circuit component can comprise the generation of bulk acoustic waves by acoustic transmitters and propagation of the bulk acoustic waves across the substrate where they are received by piezoelectric el...
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WO/2023/237219A1 |
The invention relates to an acoustic resonator device (100) comprising: a piezoelectric layer (102); a dielectric substrate (104); and an interdigital transducer (106) which is arranged between the piezoelectric layer (102) and the diele...
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WO/2023/238768A1 |
An N-path filter (1) comprises N signal paths (P1-PN) that are connected in parallel between signal terminals (110 and 120), and N signal paths (P41-P4N). The signal path (PN) has a switch (1N) connected to the signal terminal (110), a s...
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WO/2023/239582A1 |
Advanced magnetic metamaterial networks for spatially-engineered magnetoinductive waves for signal transport in accordance with embodiments of the invention are disclosed. In one embodiment, a metamaterial network is provided, the metama...
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WO/2023/239293A1 |
An apparatus is disclosed for a surface-acoustic-wave filter that suppresses intermodulation distortion. In an example aspect, the apparatus includes a surface-acoustic-wave filter including an electrode structure (302) and at least one ...
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WO/2023/238473A1 |
Provided is an elastic wave device in which wiring resistance is reduced and stress applied thereto is generally reduced. An elastic wave device 1 comprises: a piezoelectric layer 4 that has a first main surface 4a and a second main su...
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WO/2023/234405A1 |
In this composite filter, an LC filter has one or more attenuation poles on the lower frequency side of a pass band. At least one of a plurality of acoustic wave resonators has an anti-resonance frequency located between one of the one o...
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WO/2023/235309A1 |
In some embodiments, a surface acoustic wave device can include a piezoelectric substrate and an interdigital transducer electrode embedded in a surface of the piezoelectric substrate to support a high-order mode of a surface acoustic wa...
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WO/2023/232562A1 |
The invention relates to a method for manufacturing an elastic wave device configured to operate at a frequency lower than 1 GHz, and formed on a POI substrate, the formation of the POI substrate comprising the following steps: - a) a st...
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WO/2023/231882A1 |
The present application provides a filter and an electronic device. The filter comprises a base layer; a piezoelectric layer located on one side of the base layer, wherein a third propagation speed of sound waves propagated on the base l...
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WO/2023/234383A1 |
In the present invention, the size of an elastic wave device is reduced. The elastic wave device includes: a support substrate; a piezoelectric body layer that directly, or indirectly, contacts the support substrate; and an IDT electrode...
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WO/2023/235645A1 |
An acoustic wave resonator has a first conductive layer (210), piezoelectrical material (212) formed over the first conductive layer, and second conductive layer (214) formed over the piezoelectric material. An alignment of the first con...
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WO/2023/234321A1 |
The present invention reduces fluctuations in frequency characteristics. The present invention comprises: a piezoelectric layer having a first main surface and a second main surface that face each other in a first direction; at least one...
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WO/2023/235311A1 |
In some embodiments, a surface acoustic wave device can include a piezoelectric substrate and an interdigital transducer electrode implemented on a surface of the piezoelectric substrate, such that the surface acoustic device supports a ...
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WO/2023/234144A1 |
Provided is an elastic wave device wherein the transverse mode can be stably suppressed. This elastic wave device 1 comprises a piezoelectric board 2 and an IDT electrode 3 provided on the piezoelectric board 2. The IDT electrode 3 has...
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WO/2023/233843A1 |
The present invention suppresses degradation in characteristics while achieving size reduction. In a high frequency module (100), a first chip (4) includes at least one of a plurality of first elastic wave resonators (14) of a first filt...
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WO/2023/228985A1 |
The present invention equalizes the frequency characteristics of adjacent resonators. This elastic wave device comprises a plurality of resonators. Each of the plurality of resonators comprises: a support member having thickness in a fir...
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WO/2023/228989A1 |
The present invention realizes an elastic wave device that has favorable filter characteristics while also having a membrane section that is difficult to break. The elastic wave device includes: a support substrate having a hollow portio...
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WO/2023/229773A1 |
Acoustic resonators with piston mode patches are disclosed. In one aspect, an interdigitated acoustic resonator (300) having plural fingers (308(1)-308(N)) or digits includes a modified piston mode rail. In particular, the piston mode ra...
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WO/2023/229049A1 |
The present invention suppresses cracking of a piezoelectric layer. The present invention comprises: a support member that comprises a support substrate having thickness in a first direction; a piezoelectric layer provided in the first d...
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WO/2023/224129A1 |
The present invention addresses the problem of reducing the size of an elastic wave device. An elastic wave device according to the present invention has a plurality of resonators each comprising: a support member having a cavity in one ...
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WO/2023/223906A1 |
An elastic wave element according to the present disclosure is provided with a support member, a piezoelectric layer provided on the support member, and a functional electrode provided on the piezoelectric layer. In the support member, a...
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WO/2023/224072A1 |
Provided is an elastic wave device which makes it possible to suppress the extension of a crack. An elastic wave device 10 according to the present invention comprises: a support member that has a support substrate; a piezoelectric lay...
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WO/2023/222282A1 |
A surface wave device (200) comprising a substrate (210); a piezoelectric layer (240) above an upper face of the substrate; a pair of electrodes (250A, 250B) in contact with the piezoelectric layer, the two electrodes including fingers (...
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WO/2023/219170A1 |
The present invention suppresses unnecessary waves. The present invention comprises: a support member having a cavity in one main surface thereof; a piezoelectric layer provided on the one main surface of the support member; and a functi...
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WO/2023/219134A1 |
An elastic wave device according to the present disclosure comprises: a package substrate; and an elastic wave element that is bonded to a main surface of the package substrate with a plurality of electrically conductive bumps interposed...
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WO/2023/216465A1 |
A surface acoustic wave filter, comprising: a surface acoustic wave element (10), the surface acoustic wave element (10) being connected between an input terminal (30) and an output terminal (40) of the surface acoustic wave filter; and ...
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WO/2023/219167A1 |
The objective of the present invention is to suppress a deterioration in frequency characteristics. This elastic wave device includes an input terminal, an output terminal, a plurality of resonators, a serial arm electrically connecting ...
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WO/2023/219561A2 |
An apparatus is disclosed for partially suspending a piezoelectric layer using a dielectric. In an example aspect, the apparatus includes a microacoustic filter with a substrate layer, a piezoelectric layer, an electrode structure that i...
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WO/2023/213412A1 |
This disclosure relates to an acoustic resonator device that exploits an acoustic Lamb wave in a piezoelectric layer (103). The resonator device comprises a dielectric substrate (101), an IDT structure with conductive first electrodes (1...
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WO/2023/212771A1 |
A photonic phase shifter for controlling a phase shift of an input optical signal, the photonic phase shifter comprising: an optical circuit formed on an electo-optic layer, the optical circuit comprising: an input port for receiving the...
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WO/2023/210309A1 |
A film structure (10) according to the present invention comprises: an Si layer (12a); a ZrO2 layer (12b) which is formed on the Si layer(12a) and serves as a buffer film that contains ZrO2; and a piezoelectric film (11) which is formed ...
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WO/2023/210524A1 |
In this elastic wave element, an Interdigital Transducer (IDT) electrode has a first layer that is composed of a first conductive material. The first layer has a thickness greater than 100 angstroms. Besides, the first layer overlies a p...
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WO/2023/207966A1 |
The present application relates to a filter, a multiplexer, and a radio frequency front-end module. The filter comprises a capacitor and at least one bulk acoustic resonator, wherein the capacitor comprises a first metal layer and a seco...
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WO/2023/210353A1 |
Provided is a composite filter device that can suppress harmonic waves and the isolation characteristic of which is less prone to being degraded. A composite filter device 10 according to the present invention comprises: a first filter...
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