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WO/2022/131309A1 |
The present invention suppresses accumulation of heat. An elastic wave device according to the present invention is provided with: a supporting substrate; a piezoelectric layer which contains lithium niobate or lithium tantalate, while b...
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WO/2022/131133A1 |
The present invention addresses the problem of improving isolation. In this high-frequency module (100), a first electronic component (1) and a second electronic component (2) are mounted on a principal surface (91) of a mounting substra...
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WO/2022/131213A1 |
Provided is a piezoelectric vibration device in which a crystal vibrating plate (10) has a cut-out portion (10a) provided between a vibrating portion (11) and an outer frame portion (12). A metal film (28) is formed on a first major surf...
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WO/2022/130733A1 |
The present invention improves isolation between a plurality of electronic components. A high frequency module (100) comprises: a mounting substrate (10); a first electronic component (201) and a second electronic component (202); a meta...
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WO/2022/131237A1 |
Provided is an elastic wave device that, when used for an elastic wave resonator, is capable of narrowing the fractional bandwidth, and when used for a band-pass type filter, is capable of narrowing the bandwidth and increasing steepness...
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WO/2022/130670A1 |
A quartz vibrator 1 comprises: a quartz vibration element 10 having a quartz piece 11, excitation electrodes 14a, 14b, and connection electrodes 16a, 16b; a substrate 30; and a conductive holding member 50 provided between the connection...
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WO/2022/131216A1 |
Provided is an elastic wave device that can suppress variation in the thickness of a piezoelectric layer, and that can suppress deterioration in frequency properties. An elastic wave device 1 according to the present invention comprise...
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WO/2022/130676A1 |
The present invention improves DLD and suppresses reductions in resonant frequency adjustment rate. A resonator 10 that comprises: a vibrating part 110 that includes a base part 130 and a plurality of vibrating arms 121A–121D, at lea...
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WO/2022/131157A1 |
The present invention provides a high-frequency module that can be miniaturized in a configuration provided with an inductor and a switch for switching conduction/non-conduction between the inductor and a signal path. A high-frequency mo...
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WO/2022/131076A1 |
Provided is an elastic wave device that can promote miniaturization. This elastic wave device 10 comprises: a support member 13; a piezoelectric layer 14 having a first main surface 14a and a second main surface 14b positioned at the s...
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WO/2022/130668A1 |
Provided is a piezoelectric oscillator that is capable of holding up the tip of a piezoelectric oscillation element while suppressing the occurrence of stress in the piezoelectric oscillation element. A crystal oscillator 1 comprises: ...
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WO/2022/121904A1 |
Disclosed are an acoustic wave filter, a multiplexer, and a communication device, which contribute to improve nonlinear performance. The acoustic wave filter comprises a plurality of piezoelectric acoustic resonators, and at least one se...
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WO/2022/124409A1 |
The present invention reduces unwanted waves. An elastic wave device according to the present invention is provided with: a supporting substrate; a piezoelectric layer 2 which contains lithium niobate or lithium tantalate, while having t...
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WO/2022/123816A1 |
Provided are a piezoelectric vibrator, a piezoelectric oscillator and a method for making a piezoelectric vibrator wherein sticking of a vibration part can be suppressed. A crystal vibrator 1 comprises: a crystal vibration element 10 i...
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WO/2022/121958A1 |
Provided by the present invention are an acoustic wave resonator having a temperature compensation layer, and a filter and an electronic device; a parameter such as the electrode piezoelectric ratio is introduced and the manner of calcul...
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WO/2022/124391A1 |
The present invention facilitates the adjustment of a fractional bandwidth. This elastic wave device comprises: a support substrate; a piezoelectric layer which has a first principal surface and contains lithium niobate or lithium tantal...
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WO/2022/123823A1 |
This hybrid filter (10) comprises: a module substrate (80) having a main surface (80a) and a main surface (80b) facing each other; elastic wave resonators (P1, P2) disposed on the module substrate (80); inductors (L1 to L3) disposed on t...
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WO/2022/124064A1 |
A high-frequency module (10) comprises a module board (20), an inductor device (100), and an elastic wave filter (200). When viewed in plan view from the normal direction of the module board (20), the inductor device (100) is disposed so...
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WO/2022/121818A1 |
A method, an acoustic wave filter, a multiplexer, and a communication device for improving nonlinear performance are disclosed. According to the method, the acoustic wave filter comprises a plurality of piezoelectric acoustic resonators ...
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WO/2022/123892A1 |
This high frequency module (1A) is provided with: a module substrate (80); an electronic component which is arranged on a main surface (80a); a resin member (81) which covers at least a part of the main surface (80a) and at least a part ...
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WO/2022/119655A1 |
A device includes a piezoelectric layer on a substrate and including a portion included in an acoustic resonator, a first conductive layer on the piezoelectric layer and including a first electrode of the acoustic resonator on a first si...
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WO/2022/118970A1 |
The present invention reduces stress at the end of an electrode on a piezoelectric layer side. This elastic wave apparatus comprises: a support substrate; a piezoelectric layer having a first major surface and a second major surface; and...
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WO/2022/116396A1 |
The present invention discloses a passive cavity type single crystal thin-film bulk acoustic resonator (FBAR) structure, comprising a support substrate, a bonding adhesion layer, an epitaxial substrate layer, and a single crystal piezoel...
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WO/2022/119967A1 |
An example system for passive sensing includes a coupled pair of resonators including a sensor resonator and a reader resonator, the sensor resonator including a resistor a loss associated with the resistor, and the reader resonator incl...
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WO/2022/120025A1 |
An acoustic wave device includes a support substrate including top and bottom surfaces and a cavity or air gap, a piezoelectric layer on the support substrate and including top and bottom surfaces, and an electrode on the top surface of ...
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WO/2022/119933A1 |
Remote keyless entry (RKE) systems and devices are described. The RKE devices include one or more passive radios that respond to an interrogation signal from an interrogating device such as a vehicle. The passive radio sends a responsive...
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WO/2022/120016A1 |
A piezoelectric resonator can include a substrate and a piezoelectric aluminum nitride layer on the substrate, where the piezoelectric aluminum nitride layer is doped with a dopant selected from the group consisting of Si, Mg, Ge, C, Sc ...
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WO/2022/118864A1 |
The present invention reduces noise which is caused by electromagnetic coupling that accompanies a reduction in size of an element mounting substrate. An element mounting substrate according to an embodiment of the present disclosure com...
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WO/2022/111415A1 |
The present invention relates to a bulk acoustic resonator, comprising: a substrate; an acoustic mirror; a bottom electrode; a top electrode; and a piezoelectric layer disposed between the bottom electrode and the top electrode, wherein ...
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WO/2022/115392A1 |
Acoustic waves at microwave frequencies are workhorses for signal processing and emerging platforms for quantum information. Efficient and scalable controls of on-chip microwave phonons are, however, still missing and hinder the developm...
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WO/2022/113408A1 |
The present invention provides: a piezoelectric vibration element which is capable of suppressing damage to a wiring electrode due to etching; a piezoelectric vibrator; and a piezoelectric oscillator. A crystal vibration element 10 is ...
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WO/2022/113546A1 |
This high frequency module (1) comprises: a first base material (71) made of a first semiconductor material; a second base material (72) which is made of a second semiconductor material having a thermal conductivity lower than that of th...
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WO/2022/107606A1 |
Provided is an elastic wave device which can achieve improvements in characteristics and mechanical strength. This elastic wave device 1 comprises an intermediate film 3, a piezoelectric film 4, and a first electrode 5, which are stack...
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WO/2022/108337A1 |
Provided is a substrate for a surface acoustic wave device, the substrate comprising a two-dimensional crystalline hexagonal boron nitride layer, wherein a surface acoustic wave of the surface acoustic wave device is transmitted through ...
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WO/2022/106167A1 |
A filter is provided that includes a set of cascaded resonator stages (310-1, 310-2, 310-3, 310-N) coupled between a filter input (IN) and a first filter output (OUT1), wherein the filter includes a second filter output (OUT2) coupled to...
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WO/2022/107840A1 |
This method for producing a hollow package includes: a step for forming a side wall on a substrate having aluminum wiring; and a step for forming a top plate portion on the side wall to produce a hollow structure that houses the aluminum...
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WO/2022/105316A1 |
A switch resonator (100), a filter, and a manufacturing method for the switch resonator (100). The switch resonator (100) comprises a substrate (110), an upper electrode layer (120), a lower electrode layer (130), a gallium nitride layer...
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WO/2022/105580A1 |
Disclosed is a thin-film piezoelectric acoustic resonator, comprising: an upper electrode, a piezoelectric layer and a lower electrode, which are sequentially stacked from top to bottom, wherein regions in which projections of the three ...
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WO/2022/107681A1 |
This filter (1) comprises a first filter circuit (10) and an additional circuit (20). The first filter circuit (10) has a resonator electrode and a main wiring (110). The main wiring (110) includes a first metal film (111) and a second m...
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WO/2022/107699A1 |
Provided is an elastic wave filter having increased power durability. An elastic wave filter 2 has an input end and an output end and comprises, in a series arm connecting the input end and the output end, n (n=3) elastic wave resonato...
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WO/2022/102596A1 |
Provided is an elastic wave device that can increase heat dissipation performance. An elastic wave device 10 according to the present invention is provided with: a support member 13 that includes a support substrate; a piezoelectric la...
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WO/2022/100468A1 |
The present invention relates to a thin-film surface acoustic wave resonator and a manufacturing method therefor. The thin-film surface acoustic wave resonator comprises: a first interdigitated electrode having multiple first interdigita...
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WO/2022/100828A1 |
A micromechanical resonator wafer assembly includes an actuator wafer supporting an outer actuator layer. The outer actuator layer includes an oscillating part configured to be driven by an electrical drive signal. The micromechanical re...
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WO/2022/102719A1 |
The present invention suppresses occurrence of cracks in a piezoelectric layer. This elastic wave device is provided with: a support substrate having a thickness in a first direction; a piezoelectric layer that is provided in the first d...
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WO/2022/104099A1 |
There is disclosed a transducer and a method for generating the transducer. The transducer is formed on a substrate layer. The transducer includes a first electrode layer, a first piezoelectric layer on the first electrode layer, and a s...
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WO/2022/102619A1 |
Provided is an elastic wave apparatus configured to allow for an easy adjustment of a frequency characteristic and a fractional bandwidth without an increase in size. An elastic wave apparatus 10 of the present invention is provided wi...
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WO/2022/102545A1 |
According to the present invention, a piezoelectric thin film (1) is provided with a piezoelectric element (10) and a substrate (4) that supports the piezoelectric element (10). The piezoelectric element (10) comprises the piezoelectric ...
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WO/2022/102620A1 |
Provided is a filter device which can suppress spuriousness. A filter device 10 is provided with first and second elastic wave resonators. The first and second elastic wave resonators each have: a support member; a piezoelectric layer ...
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WO/2022/103405A1 |
Acoustic wave devices, and particularly piezoelectric layer arrangements in acoustic wave devices and related methods are disclosed. Acoustic wave devices may include a piezoelectric layer on a carrier substrate. The piezoelectric layer ...
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WO/2022/103492A1 |
An acoustic filter providing negative capacitance for use in multiplexers is provided that may include a first resonator and a second resonator. The second resonator may be a three terminal element that includes two sub-resonator element...
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