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Matches 1 - 50 out of 50,544

Document Document Title
WO/2019/093580A1
The present invention relates to a phase shifter for generating a difference in phase between a first transmission path and a second transmission path, the phase shifter comprising: a phase delay circuit unit which forms the first transm...  
WO/2019/094388A1
There is disclosed a surface acoustic wave sensor. An interdigital transducer (IDT) and a first reflector are formed on a surface of a piezoelectric substrate. The first reflector is displaced from the IDT in a direction of acoustic wave...  
WO/2019/087922A1
A piezoelectric element comprises a piezoelectric body having a first main surface and a second main surface opposite of each other, and multiple external electrodes arranged on the first main surface. A vibration member has a third main...  
WO/2019/089150A1
A passive on glass (POG) filter capping apparatus (400) includes an acoustic filter die (440). The apparatus further includes a capping die (402) electrically coupled to the acoustic filter die (440). The capping die (402) includes a 3D ...  
WO/2019/088128A1
A method for producing a package structure, which comprises: a step for preparing a package member which is provided with a first circuit member and a plurality of second circuit members that are mounted on the first circuit member, with...  
WO/2019/087874A1
The purpose of the present invention is to provide a crystal oscillation element with which it is possible to suppress an increase in a crystal impedance value. The crystal oscillation element of the present invention is provided with: a...  
WO/2019/087923A1
A wiring member electrically connected to a piezoelectric element has a first region, a second region and a third region. The first region is positioned on multiple external electrodes and is bonded to the multiple external electrodes. T...  
WO/2019/081232A1
An improved RF filter is provided. The RF filter (F) has good filter characteristics even at high frequencies and comprises a signal path between a first port (PI) and a second port (P2) and a plurality of series resonators (RS, EAR; RS,...  
WO/2019/082806A1
An acoustic wave element 1 is provided with: an IDT electrode 4 that includes a plurality of electrode fingers 41; a piezoelectric layer 30 which has the IDT electrode 4 positioned on the upper surface thereof, which has a thickness less...  
WO/2019/082901A1
Provided is a composite substrate comprising a first substrate 10, the first substrate 10 having Euler angles of (0, α, γ) and comprising a lithium tantalate crystal, and a second substrate 20 bonded to the first substrate 10, the seco...  
WO/2019/013719A3
The invention subject to the application is related to a new, feedthrough-current-eliminating and high-quality-factor characterization and drive method for electrostatically driven, varying gap MEMS resonators.  
WO/2019/078234A1
The present invention allows for a reduction in height of an acoustic wave device in which numbers, symbols, text, marks etc, are displayed on the upper surface of a sealing resin. The acoustic wave device is provided with: an acoustic...  
WO/2019/078157A1
This acoustic wave filter (10A) is provided with: a series arm resonator (s1) which is provided on a path that connects input/output terminals; and a parallel arm circuit (11p) which is connected to a node on the above-described path and...  
WO/2019/073783A1
A ceramic substrate that is formed from a polycrystalline ceramic and has a supporting main surface. At the supporting main surface, the average value of the crystal grain size of the polycrystalline ceramic is at least 15 μm but less t...  
WO/2019/073782A1
A ceramic substrate that is formed from a polycrystalline ceramic and has a supporting main surface. At the supporting main surface, the average value of the crystal grain size of the polycrystalline ceramic is at least 40 μm but less t...  
WO/2019/073899A1
A multiplexer (1) comprising a plurality of filters, wherein one input/output terminal (m11, m21, m31) of each of the plurality of filters is connected to a common terminal (m1), and a first filter (10) among the plurality of filters is ...  
WO/2019/074802A1
Thin film resonators are deployed in the port ducts of speakers, musical instruments, microphones, and other devices having an important auditory component, to reduce distortion and/or improve other sound qualities. Preferred resonators ...  
WO/2019/073781A1
A ceramic substrate that is formed from a polycrystalline ceramic and has a supporting main surface. At the supporting main surface, the average value of the crystal grain size of the polycrystalline ceramic is at least 0.5 μm but less ...  
WO/2019/070315A1
A calibration system is provided for an oven controlled MEMS oscillator. The calibration system includes control circuitry that to separately selects predetermined target set-point values and controls a heater inside the oven controlled ...  
WO/2019/065027A1
This hybrid filter device (1) is configured of: an acoustic wave device (AD) which comprises an acoustic wave resonator; and a passive device (PD) which comprises an inductor element, or an inductor element and a capacitor element. At le...  
WO/2019/064990A1
This high frequency filter (1) is provided with series-arm resonators (S11 and S12) and parallel-arm resonators (P11 and P12) as elastic wave resonators, and at least one inductor. Capacitive components of the elastic wave resonators, to...  
WO/2019/064662A1
In order to suppress the influence on the resonance frequency of an electric charge on an insulator layer on a resonator or of a conductive layer on the insulator layer, and to improve strength, this resonance device is provided with: a ...  
WO/2019/065861A1
According to the present invention, a first filter (11) of a multiplexer (1) has a ladder filter structure that is configured from a plurality of series resonators (111s–114s) and a plurality of parallel resonators (111p–113p). The r...  
WO/2019/065669A1
In the present invention, a reduction in size is achieved while characteristics degradation is suppressed. An elastic wave device (1) has a first acoustic impedance layer (31) and second acoustic impedance layers (32, 33), an IDT electro...  
WO/2019/065670A1
According to the present invention, a first filter (11) of a multiplexer (1) has a ladder filter structure that is configured from a plurality of elastic wave resonators (110). Imaginary lines (L1) obtained by connecting other ends (e2) ...  
WO/2019/067488A1
A method of manufacturing a nanoelectromechanical resonator allows for uniform tuning of a resonant frequency. The nanoelectromechanical resonator can be mass produced and used to sense the presence of a selected gas.  
WO/2019/065863A1
According to the present invention, a first filter (11) of a multiplexer (1) has a ladder filter structure that is configured from a plurality of series resonators (111s–114s) and a plurality of parallel resonators (111p–113p). The r...  
WO/2019/065671A1
According to the present invention, a first filter (11) of a multiplexer (1) has a ladder filter structure that is configured from a plurality of elastic wave resonators (110). Imaginary lines (L1) obtained by connecting other ends (e2) ...  
WO/2019/065666A1
The present invention further enhances resistance to electric power while suppressing deterioration of frequency characteristics. A first IDT electrode (7A) and a second IDT electrode (7B) are connected in series to each other via a comm...  
WO/2019/065519A1
The present invention enables stable conduction between a base member and a lid member. A crystalline oscillator of the present invention is provided with: a crystalline oscillation element; a base member; a conductive lid member that is...  
WO/2019/065619A1
This elastic wave device (11) is provided with a common terminal (P1), a first terminal (P2), a second terminal (P3), a first filter (111), a second filter (112), and an inductor (113). The first filter (111) uses a relatively low freque...  
WO/2019/065667A1
The present invention suppresses reduction in attenuation. An acoustic wave filter device (1) is provided with a substrate, a first acoustic impedance layer (4A), a second acoustic impedance layer (4B), a piezoelectric layer (5), a first...  
WO/2019/065977A1
This method for producing a mounting structure is provided with: a step for preparing a mounting member provided with a first circuit member, and a plurality of second circuit members mounted on the first circuit member; a step for prepa...  
WO/2019/065274A1
A filter device (10A) is provided with: a series arm circuit (11s) provided in a path connecting input and output terminals (T1 and T2); and a parallel arm resonator (p1) connected to a node (x1) in the path and to a ground. The series a...  
WO/2019/064663A1
In order to suppress the influence on vibration of the resonator of an electric charge on an insulator layer on a resonator or of a conductive layer on the insulator layer, this resonance device is provided with: a vibration unit compris...  
WO/2019/059055A1
The purpose of the present invention is to provide a crystal oscillator with which crystal impedance can be reduced. The crystal oscillator of the present invention comprises: a crystal piece which is AT-cut and provided with rectangular...  
WO/2019/059030A1
The purpose of the present invention is to provide an electronic component having a junction between a cap and a substrate which is not easily damaged when being mounted on a mother substrate by a mounter. The electronic component accord...  
WO/2019/056553A1
A method for preparing a piezoelectric resonator and a piezoelectric resonator, the preparation method comprising: forming a monocrystalline piezoelectric material layer on a first substrate; and forming a polycrystalline piezoelectric m...  
WO/2019/057161A1
A surface acoustic wave (SAW) device including a piezoelectric layer, a high acoustic velocity layer coupled to the piezoelectric layer, and at least one transducer. The SAW device may include a multi-layer graphene layer in the electrod...  
WO/2019/058632A1
A resonator wherein the frequency temperature characteristics are able to be adjusted with high accuracy. This resonator is provided with: a vibration part which comprises a first electrode, a second electrode, a piezoelectric film that ...  
WO/2019/059247A1
This manufacturing method of a piezoelectric vibration element 10 includes: preparing a piezoelectric substrate 11; providing a first electrode layer 60a on a first main surface 12a of the piezoelectric substrate 11; disposing a mask 70a...  
WO/2019/059208A1
Provided is an elastic wave filter device that can efficiently confine elastic wave energy to a piezoelectric layer side, and can suppress a response induced at the upper end of a stop band. An elastic wave filter device 1 comprises: a p...  
WO/2019/059338A1
The present invention suppresses decrease in airtightness between a cover member and a base member. According to the present invention, a crystal oscillator is provided with: a crystal oscillation element; a cover member and a base membe...  
WO/2019/054349A1
This method for producing a crystal oscillator element (10) comprises: a step for preparing a crystal piece (111); a step for providing a central part (117) of the crystal piece (111) with a first excitation electrode (114a); a step for ...  
WO/2019/054238A1
[Problem] To improve a Q value of an acoustic wave device in which a piezoelectric material substrate is directly bonded on a support substrate composed of polycrystalline ceramics. [Solution] This acoustic wave device 10 comprises: a pi...  
WO/2019/052894A1
A SAW resonator comprises two reflectors and a transducer arranged between the reflectors. A resonant space between the transducer and a respective reflector is set large enough to enable occurrence of main resonance and at least one fur...  
WO/2019/054025A1
This high frequency module (10) is provided with: a multilayer substrate which is obtained by laminating a plurality of insulator layers; a first terminal (P1) and a second terminal (P2), which are provided on the multilayer substrate; a...  
WO/2019/054364A1
According to the present invention, a SAW device comprises: a mounting substrate which has a mounting surface; a SAW chip which is mounted on the mounting surface; a dummy chip which is mounted on the mounting surface; and a resin part w...  
WO/2019/048736A1
The invention relates to a frequency reference oscillator device and method of providing a frequency reference signal. The oscillator device comprises a first oscillator comprising a first resonator having first long-term stability and a...  
WO/2019/048737A1
The invention relates to a temperature-compensated microelectromechanical oscillator and a method of fabricating thereof. The oscillator comprises a resonator element comprising highly doped silicon and an actuator for exciting the reson...  

Matches 1 - 50 out of 50,544