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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.
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.
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...
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...
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...
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.
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.
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...
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,...
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...
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;...
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...
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...
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...
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,...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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.
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...
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...
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,...
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...
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.
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...

Matches 1 - 50 out of 65 1 2 >