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JP4880878B2 |
The present invention is directed to a structure comprised of alternating layers of metal and sacrificial material built up using standard CMOS processing techniques, a process for building such a structure, a process for fabricating dev...
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JP4873007B2 |
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JP4861790B2 |
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JP4810661B2 |
A microphone-capsule encompasses a vibrator (vibrating plate) 14 implemented by a conductor having a flat vibration surface, a dielectric-polarization plate 13 which is defined by a flat first principal surface facing to the vibration su...
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JP4812765B2 |
A method and device bracket are presented for reconfigurable radiation desensitivity. The method includes: accepting a radiated wave from a source such as a transmitter, antenna, microprocessor, electrical component, integrated circuit, ...
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JP2011211029A |
To reduce the size of a variable capacitive element using a ferroelectric substance that can attain expansion of a variable region of electrostatic capacity, while at the same time, maintaining a high Q-value.The variable capacitive elem...
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JP4798870B2 |
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JP4766956B2 |
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JP4763358B2 |
A three-dimensional micro electro-mechanical (MEMS) variable capacitor is described wherein movable comb electrodes of opposing polarity are fabricated simultaneously on the same substrate are independently actuated. These electrodes are...
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JP4753609B2 |
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JP4749052B2 |
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JP4743222B2 |
Disclosed is a variable capacitor that includes signal electrodes configured to sandwich a dielectric layer so as to generate a signal electric field, and control electrodes configured to sandwich the dielectric layer so as to generate a...
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JP4731515B2 |
The tunable filter includes two or more adjacent resonators, and a variable capacitive coupler formed on the same substrate where the resonators are formed provided between the resonators. The tunable filter is appropriate for integratio...
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JP4671664B2 |
A capacitive fluid pressure transducer (10') has a sensing element (12) received in an electrically conductive cup-shaped shield member (24) which is crimped onto the base of an electrical connector (20'). A conditioning circuit (14) is ...
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JP4666564B2 |
The present invention quantifies and reduces losses in tunable bandpass filters having ferro-electric capacitors. Given a required insertion loss and the quality factor of a resonator, the geometric losses resulting from a particular top...
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JP4651355B2 |
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JP4649451B2 |
A tunable capacitor (200) using an electrowetting phenomenon includes a first electrode (211); a second electrode (212) which is spaced apart from the first electrode (211) and faces the first electrode (211); a fluidic channel (230) whi...
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JP2011044705A |
To rapidly, inexpensively and easily grow an epitaxial thin film on a textured substrate.By using a combustion chemical vapor deposition method (CCVD) or the like, a perovskite type dielectric layer is formed on a textured substrate. A p...
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JP4638232B2 |
A temperature-compensated capacitor device has ferroelectric properties and includes a ferroelectric capacitor using a ferroelectric material such as a metal oxide ferroelectric material, a negative-temperature-variable capacitor using a...
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JP4634459B2 |
The invention discloses a varactor device (100) for improved temperature stability, comprising a first varactor (160) connected to a decoupling network (150). The device further comprises a voltage stabilizer (110), said stabilizer compr...
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JP4627676B2 |
A fluororesin material is irradiated with ionizing radiation at a temperature not lower than the crystalline melting point of the fluororesin material in the absence of oxygen to form a crosslinked modified fluororesin material. An elect...
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JP4622518B2 |
The present invention relates to a method of manufacturing a multilayer ceramic capacitor, comprising the steps of: (a) alternately layering internal electrodes and ceramic green sheets containing a ceramic material comprising barium tit...
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JP4613954B2 |
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JP2011003669A |
To provide a variable capacitor of a small capacity.The variable capacitor includes: a first internal electrode which has a first pull-out part where an opening is formed, parts on both sides of the opening are extended in the long side ...
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JP4602494B2 |
A variable capacitor in a semiconductor device is described in which the capacitance is varied by the movement of a dielectric material in the space between the plates of the capacitor in response to an external stimulus. A method of mak...
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JP4584527B2 |
A method of making an electret includes condensing vapor from the atmosphere of a controlled environment onto a dielectric article and then drying the article to remove the condensate. The dielectric article may be a nonconductive polyme...
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JP4580745B2 |
A piezoelectric driving type MEMS apparatus includes: a supporting portion provided on a substrate; and a piezoelectric actuator, which is supported on the supporting portion, including a piezoelectric film and a driving electrode config...
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JP2010258402A |
To stably manufacture a capacitance element that suppresses capacitance variation due to misalignment of electrodes that face each other across a dielectric layer so as to have a desired capacitance.The capacitance element is provided wi...
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JP2010258562A |
To provide a method for manufacturing an electret material which improves the adhesion between a resin layer to be an electret layer and an electrode plate.The method for manufacturing an electret material includes: applying dispersing l...
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JP2010251426A |
To provide a varactor element having sensitivity of a control electric field between control terminals, the sensitivity capable of being set without reference to breakdown voltage resistance to a signal voltage, and to provide an electro...
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JP4567643B2 |
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JP4566012B2 |
A variable capacitor includes a supporting substrate and a plurality of variable capacitance elements, and bias lines. The plurality of variable capacitance elements is formed on the supporting substrate, each of which is composed of a l...
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JP4548466B2 |
An NTC capacitor comprises a capacitor body having a plurality of insulator layers laminated therein, first to third inner electrodes arranged within the capacitor body, and first to third terminal electrodes arranged on outer surfaces o...
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JP4534988B2 |
A displacement element having a beam in a state of being supported at its opposite ends and having the excellent controllability of an absolute position in an initial state. In the beam (12) formed such that a plurality of functional mat...
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JP4535046B2 |
A method for manufacturing a capacitance sensor comprises the steps of (a) depositing a film to be a diaphragm forming a moving electrode, (b) heating the film to be the diaphragm to a first temperature, and (c) depositing a film to be a...
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JP4528943B2 |
A capacitance temperature sensor in which temperature is measured by detecting capacitance of a parallel plate condenser which comprises a dielectric material comprising strontium titanate single crystal in which (a) 30% by weight or les...
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JP4528461B2 |
An electret microphone comprises a back plate having a stationary back electrode and secured to a substrate. An electret layer is formed on the stationary back electrode and a spacer is mounted on the back plate. A diaphragm electrode is...
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JP2010165926A |
To provide a method of manufacturing an electret of high charge holding rate having a thin PTFE film. This method of manufacturing the electret includes a bonding process for bonding the PTFE film 12 onto a metal plate 11, and a heating ...
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JP4515031B2 |
A method of forming minimally spaced MRAM structures is disclosed. A photolithography technique is employed to define masking patterns, on the sidewalls of which spacers are subsequently formed to reduce the distance between any of the t...
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JP4514782B2 |
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JP4502609B2 |
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JP4496091B2 |
A thin film piezoelectric actuator comprises a driving part at least one end of which is supported by an anchor portion. The driving part includes: a piezoelectric film, a first lower electrode provided under a first region of the piezoe...
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JP4498836B2 |
The system measures the distance from side of subject vehicle to parked vehicle, and distance in advance direction of subject vehicle, which are associated and stored in memory. A setter sets parking region adjacent to parked vehicle, ba...
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JP4493368B2 |
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JP4493405B2 |
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JP2010109035A |
To provide a variable capacitor which reduces loss in conductivity as a component formed by combining a capacitor for cutting low frequency signal and a variable capacitor.The variable capacitor includes (a) a pair of electrode layers 22...
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JP4462723B2 |
In the use of a composition comprising copper phthalocyanine (CuPc) (I) and 2-phthalimidomethyl-CuPc (II) as colorant in electrophotographic toners and developers, powders, powder lacquers, electret materials, ink-jet inks and color filt...
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JP4452444B2 |
The present invention quantifies and reduces losses in tunable bandpass filters having ferro-electric capacitors. Given a required insertion loss and the quality factor of a resonator, the geometric losses resulting from a particular top...
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JP4449574B2 |
A vacuum variable capacitor is includes of a vacuum container which is formed by sealing both end of a cylindrical insulator with a fixed-side end plate and a movable-side end plate, a movable conductive member which is disposed opposite...
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JP4437232B2 |
Electrets can be produced from cycloolefin copolymers (COCs), and charges applied thereto are stable for long periods, even at high temperatures and high relative humidities. The reduction here in a positive charge applied to the COCs is...
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