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US20120074810 |
MECHANICAL RESONATING STRUCTURES INCLUDING A TEMPERATURE COMPENSATION STRUCTURE
Mechanical resonating structures are described, as well as related devices and methods. The mechanical resonating structures may have a compensating structure for compensating temperature variations. |
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US20120049965 |
MECHANICAL RESONATING STRUCTURES INCLUDING A TEMPERATURE COMPENSATION STRUCTURE
Mechanical resonating structures are described, as well as related devices and methods. The mechanical resonating structures may have a compensating structure for compensating temperature variations. |
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US20110018399 |
PIEZOELECTRIC DEVICE
A piezoelectric device has a piezoelectric vibration element mounted in a package wherein the piezoelectric vibration element comprises two stick-like vibration legs; a central leg provided... |
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US20110305120 |
FIRST AND SECOND ORDERS TEMPERATURE-COMPENSATED RESONATOR
The invention relates to a temperature-compensated resonator including a body used in deformation, wherein the core (58, 58′, 18) of the body (3, 5, 7, 15, 23, 25, 27, 33, 35, 37, 43, 45, 47) is... |
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US20120313488 |
CRYSTAL DEVICE
A crystal device is provided, in which a peeling of a bonding material is prevented by using the bonding material having a thermal expansion coefficient which is between the coefficients in a... |
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US20130109332 |
TEMPERATURE COMPENSATION OF ACOUSTIC RESONATORS IN THE ELECTRICAL DOMAIN
Embodiments of apparatuses, systems and methods relating to temperature compensation of acoustic resonators in the electrical domain are disclosed. Other embodiments may be described and claimed. |
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US20130134835 |
ULTRASONIC SENSOR AND MANUFACTURING METHOD THEREOF
There is provided an ultrasonic sensor including: a piezoelectric vibration element; and a capacitor integrally formed with the piezoelectric vibration element. |
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US20120217846 |
Crystal Device
A surface-mount type crystal device is provided, having a rectangular crystal element including an excitation part and a frame surrounding the excitation part, wherein the frame has sides... |
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US20080295879 |
Thermoelectric and Pyroelectric Energy Conversion Devices
New thermoelectric materials and devices are disclosed for application to high efficiency thermoelectric power generation. New functional materials based on oxides, rare-earth-oxides,... |
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US20140292153 |
TEMPERATURE DRIFT COMPENSATION OF MEMS RESONATORS
A resonator device comprising a piezoelectric material and at least one electrode, the device also provided with a material with a positive coefficient of stiffness, wherein the material is... |
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US20100327701 |
Piezoelectric resonator structures having temperature compensation
An electrical resonator comprises a substrate comprising a cavity. The electrical resonator comprises a resonator stack suspended over the cavity. The resonator stack comprises a first electrode;... |
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US20120216614 |
PIEZOELECTRIC RESONATOR ELEMENT, PIEZOELECTRIC RESONATOR, PIEZOELECTRIC OSCILLATOR, RESONATOR GYRO ELEMENT, RESONATOR GYRO SENSOR, AND ELECTRONIC APPARATUS
A piezoelectric substrate includes vibrating arms, a base portion to which one end portion of each vibrating arm is connected, spindle portions formed in the other end portion of each vibrating... |
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US20130106246 |
TEMPERATURE-COMPENSATED MICROMECHANICAL RESONATOR
A micromechanical resonator is passively compensated to reduce the value of the temperature coefficient of frequency (TCF). The resonator may be part of a MEMS device and includes temperature... |
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US20140152152 |
ACOUSTIC RESONATOR COMPRISING TEMPERATURE COMPENSATING LAYER AND PERIMETER DISTRIBUTED BRAGG REFLECTOR
An acoustic resonator structure includes a bottom electrode disposed on a substrate, a piezoelectric layer disposed on the bottom electrode, a top electrode disposed on the piezoelectric layer, a... |
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US20080265716 |
PIEZOELECTRIC ACTUATOR WITH A SHEATH, FOR DISPOSITION IN A PIEZOELECTRIC INJECTOR
A piezoelectric actuator with piezoelectric elements, fastened between an actuator head and an actuator foot, and with a plastic sleeve surrounding at least the piezoelectric elements is proposed,... |
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US20140292150 |
TEMPERATURE COMPENSATED ACOUSTIC RESONATOR DEVICE HAVING AN INTERLAYER
An acoustic resonator comprises: an acoustic resonator device comprises: a composite first electrode disposed over a substrate, the composite first electrode comprising: a first electrically... |
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US20130168465 |
Multilayer Piezoelectric Element and Injector Using the Same
A multilayer piezoelectric element includes a plurality of piezoelectric layers and a plurality of metal layers stacked alternately. The plurality of metal layers include a plurality of low-filled... |
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US20130181579 |
BULK ACOUSTIC WAVE RESONATOR
Provided is a bulk acoustic wave resonator (BAWR). The BAWR may include an air cavity disposed on a substrate, a bulk acoustic wave resonant unit including a piezoelectric layer, and a reflective... |
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US20150263697 |
Piezoelectric Acoustic Resonator with Adjustable Temperature Compensation Capability
A piezoelectric acoustic resonator with an adjustable temperature compensation capability is disclosed. The piezoelectric acoustic resonator includes: a piezoelectric acoustic reflection... |
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US20140159548 |
ACOUSTIC RESONATOR COMPRISING COLLAR AND ACOUSTIC REFLECTOR WITH TEMPERATURE COMPENSATING LAYER
An acoustic resonator structure includes an acoustic reflector over a cavity formed in a substrate, the acoustic reflector including a layer of low acoustic impedance material stacked on a layer... |
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US20120267985 |
FLEXURAL VIBRATION PIECE AND OSCILLATOR USING THE SAME
A flexural vibration piece includes a flexural vibrator that has a first region on which a compressive stress or a tensile stress acts due to vibration and a second region having a relationship in... |
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US20140313866 |
CERAMIC TEMPERATURE-COMPENSATED RESONATOR
A temperature-compensated resonator including a body used in deformation, a core of the body being formed by ceramic. At least one part of the body includes a coating whose Young's modulus... |
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US20130015747 |
RESONATOR DEVICE INCLUDING ELECTRODE WITH BURIED TEMPERATURE COMPENSATING LAYER
An acoustic resonator device includes a composite first electrode on a substrate, a piezoelectric layer on the composite electrode, and a second electrode on the piezoelectric layer. The first... |
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US20110266925 |
RESONATOR DEVICE INCLUDING ELECTRODE WITH BURIED TEMPERATURE COMPENSATING LAYER
An acoustic resonator device includes a composite first electrode on a substrate, a piezoelectric layer on the composite electrode, and a second electrode on the piezoelectric layer. The first... |
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US20140117815 |
TEMPERATURE COMPENSATED RESONATOR DEVICE HAVING LOW TRIM SENSITIVY AND METHOD OF FABRICATING THE SAME
A temperature compensated bulk acoustic wave (BAW) resonator device has low trim sensitivity for providing an accurate resonant frequency. The BAW resonator device includes a first electrode... |
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US20140292152 |
TEMPERATURE COMPENSATING ELECTRODES
A resonator device in which a piezoelectric material is disposed between two electrodes. At least one of the electrodes is formed of a nickel-titanium alloy having equal portions nickel and titanium. |
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US20130099630 |
ACOUSTIC WAVE DEVICE
An acoustic wave device includes: an electrode that excites an acoustic wave and is located on a substrate; and a silicon oxide film that is located so as to cover the electrode and is doped with... |
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US20100320870 |
TEMPERATURE COMPENSATING FLEXTENSIONAL TRANSDUCER
A flextensional transducer that can be stored at room temperature and activated and operated at an elevated temperature in excess of 200° C., comprises (i) an elongate driver, (ii) a flextensional... |
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US20130027153 |
BULK ACOUSTIC WAVE RESONATOR AND DUPLEXER USING BULK ACOUSTIC WAVE RESONATOR
A bulk acoustic wave resonator (BAWR) includes a bulk acoustic resonance unit and at least one compensation layer. The bulk acoustic resonance unit includes a first electrode, a second electrode,... |
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US20140292149 |
TEMPERATURE COMPENSATED ACOUSTIC RESONATOR DEVICE
An acoustic resonator device comprises: a substrate comprising a cavity or an acoustic mirror; a first electrode disposed over the substrate; a piezoelectric layer disposed over the first... |
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US20100327702 |
TEMPERATURE CONTROL OF MICROMACHINED TRANSDUCERS
A micromachined structure, comprises a substrate and a cavity in the substrate. The micromachined structure comprises a membrane layer disposed over the substrate and spanning the cavity. |
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US20120313487 |
ULTRASONIC SENSOR
Disclosed herein is an ultrasonic sensor, including: a conductive case having a groove disposed at a bottom surface thereof; a piezoelectric element inserted into the groove and fixed to the... |
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US20070176516 |
Piezoelectric sensor
A piezoelectric sensor capable of preventing fluctuation in the sensitivity of the piezoelectric sensor over a wide temperature range is provided. This is a piezoelectric sensor comprising a... |
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US20130049544 |
ACOUSTIC WAVE DEVICE
An acoustic wave device includes: a substrate; a lower electrode that is located on the substrate; a piezoelectric film that is located on the lower electrode and made of aluminum nitride of which... |
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US20140320988 |
POLYMER DEVICE, METHOD OF MANUFACTURING THE SAME, LENSE MODULE, AND IMAGING UNIT
A polymer device includes: a pair of electrode layers; a polymer layer inserted between the pair of electrode layers; and an expansion-contraction suppression layer arranged between the pair of... |
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US20150116050 |
VIBRATING ELEMENT, VIBRATOR, OSCILLATOR, ELECTRONIC APPARATUS, AND MOVING OBJECT
A vibrating element has a drive mode, and first and second detection modes in which the vibrating element vibrates in a direction orthogonal to a vibration direction in the drive mode. In... |
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US20140361664 |
ACOUSTIC WAVE DEVICE
An acoustic wave device includes: a piezoelectric film located on a substrate; a lower electrode and an upper electrode facing each other across the piezoelectric film; a temperature compensation... |
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US20100244631 |
COMPOSITE SUBSTRATE, ELASTIC WAVE DEVICE USING THE SAME, AND METHOD FOR MANUFACTURING COMPOSITE SUBSTRATE
In a composite substrate 10, the piezoelectric substrate 12 which is capable of transmitting an elastic wave and a support substrate 14 which a smaller thermal expansion coefficient than the... |
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US20140219067 |
RESONATOR THERMOCOMPENSATED BY A SHAPE-MEMORY METAL
The invention relates to a thermocompensated resonator comprising a body used in deformation, the core of the body being formed by a first material. According to the invention, at least one part... |
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US20130049545 |
RESONATOR DEVICE INCLUDING ELECTRODES WITH BURIED TEMPERATURE COMPENSATING LAYERS
An acoustic resonator includes a substrate and a first composite electrode disposed over the substrate. The first composite electrode includes first and second electrically conductive layers and a... |
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US20150137908 |
ACOUSTIC WAVE FILTER AND DUPLEXER
An acoustic wave filter includes series resonators and parallel resonators that have a piezoelectric film on an identical substrate and have a lower electrode and an upper electrode, wherein: one... |
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US20060061239 |
Automatic temperature control unit
The present invention presents a temperature driven control apparatus that can be used to make mechanical adjustments to a variety of devices and machines. In one embodiment, the apparatus... |
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US20100194244 |
ACTUATOR UNIT FOR AN INJECTION SYSTEM OF AN INTERNAL COMBUSTION ENGINE
In an actuator unit for an injection system of an internal combustion engine, the difference in the longitudinal extension when a change of temperature of the piezoelectric actuator element occurs... |
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US20150116428 |
PIEZOELECTRIC ELEMENT, LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, ACTUATOR, SENSOR, AND MOTOR
A piezoelectric element used between a lowest use temperature T1 and a highest use temperature T2, includes a first electrode, a piezoelectric layer provided on the first electrode and made of a... |
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US20140132116 |
ACOUSTIC WAVE DEVICE AND METHOD OF FABRICATING THE SAME
An acoustic wave device includes: a substrate; a piezoelectric film located on the substrate; a lower electrode and an upper electrode facing each other across the piezoelectric film, at least one... |
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US20100277034 |
ARRAY OF BAW RESONATORS WITH MASK CONTROLLED RESONANT FREQUENCIES
Methods that create an array of BAW resonators by patterning a mass load layer to control the resonant frequency of the resonators and resonators formed thereby, are disclosed. Patterning the... |
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US20140077898 |
Novel micromechanical devices
The invention concerns a micromechanical device and method of manufacturing thereof. The device comprises an oscillating or deflecting element made of semiconductor material comprising n-type... |
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US20100187949 |
Component with Reduced Temperature Response, and Method for Production
A component has a substrate and a compensation layer. A lower face of the substrate is mechanically firmly connected to the compensation layer. The lower face of the substrate and the upper face... |
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US20080284286 |
PIEZOELECTRIC CERAMIC AND METHOD FOR MAKING THE SAME, AND PIEZOELECTRIC RESONATOR AND METHOD FOR MAKING THE SAME
A piezoelectric ceramic whose resonance frequency temperature characteristic can be easily adjusted is provided. It contains first and second parts (11 and 12) which can be alternately stacked... |
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US20130249351 |
VIBRATION DEVICE
A vibration device includes a semiconductor device, a first electrode and a second electrode located in a first surface of the semiconductor device, a vibration element, a third electrode and a... |