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JP2006108502A |
To provide a micro capacitor capable of changing capacity by simple constitution, and securing and stabilizing the capacity.The micro capacitor is provided with capacitors 11, 12 constituting a plurality of capacitors C, a dielectric fil...
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JP2006093680A |
To provide a variable capacitor which has a high Q value even in a high-frequency region and has a small rate of capacitance change due to a high-frequency signal while increasing its rate of capacitance change due to DC bias voltage.The...
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JP2006093323A |
To provide a variable capacitance capacitor in which the change of a capacity by an applied voltage is large, a Q value is high and temperature characteristics are good.In the variable capacitance capacitor, a first capacitor C1, an indu...
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JP2006093322A |
To provide a variable capacitance capacitor in which the change of a capacity by an applied voltage is large, a Q value is high and temperature characteristics are good.In the variable capacitance capacitor, a first capacitor C1 and a va...
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JP2006066647A |
To provide a variable capacitor, small in a capacity changing rate by high-frequency signal while enlarging the capacity changing rate by a DC bias.The variable capacitor is provided with a plurality of variable capacity elements C1-C5 c...
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JP2006049840A |
To provide a variable resonance circuit which exhibits a low degree of waveform distortion or intermodulation distortion, a high electric power resistance and a low loss.Several variable capacitors C1-C4 each using a thin-film dielectric...
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JP3767543B2 |
To prevent an exfoliation between an internal conductor and a ceramic even when the internal conductor is formed by a thin film forming method and a dielectric layer is thinned. A conductive film is formed on a film by a thin film formin...
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JP2006019737A |
To provide a MEMS variable capacitor using an interdigitated three-dimensional comb actuation electrode indicating large capacitance variations and tuning ranges.A three-dimensional MEMS variable capacitor is described wherein movable co...
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JP2006012990A |
To provide a capacity device which is free of damage capable of correctly adjusting capacity repeatedly, and can be manufactured at a low cost.In the capacity device 100 comprising dielectrics 4, 12, a first electrode 20, and a second el...
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JP2006500785A |
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JP2006003301A |
To provide an oxide thin film for a dielectric bolometer, its manufacturing method, and an infrared solid state imaging device using the oxide thin film for the dielectric bolometer.An infrared detection film changing a dielectric consta...
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JP2005340587A |
To miniaturize a driving unit for regulation and prevent the error of an electrostatic capacity caused by the abrasion or the deformation of a screwed part for a rotary unit by suppressing the increase of rotating torque upon regulating ...
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JP2005340470A |
To provide a variable capacitor, a circuit module and a communication system which are easy to handle without being influenced by the polarity of applied voltage by precisely obtaining a desired characteristic.In this variable capacitor,...
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JP2005313276A |
To stably prepare a piezoelectric driving type MEMS element with high reliability.This element is provided with a piezoelectric film 8 provided across a recessed part 2 on a substrate 1 having the recessed part 2, piezoelectric driving m...
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JP2005315661A |
To provide a capacitance temperature sensor, which has a high dielectric constant at a low temperature, which has no residual polarization characteristic, which realizes high temperature sensitivity S=ΔC/ΔT and high absolute sensitivit...
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JP3735687B2 |
To provide an electret-improved filter medium manufactured from a fiber, for example, a meltblown superfine fiber. This electret filter medium contains a nonwoven web of thermoplastic, nonconductive microfibers having trapped charge. Thi...
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JP2005308745A |
To provide a capacity type pressure sensor which can tap an impossible temperature range for a silicon pressure sensor.A first wafer supports an evaluation circuit and a capacitive electrode which are required to measure mainly an applie...
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JP3733416B2 |
To provide an electret having high secondary non-linear optical characteristics by a method wherein the electret consists of a polar high- molecular thin film, which is formed on a glass substrate and is turned into an electret, and the ...
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JP2005262497A |
To provide a laminated sheet for an electret fixing electrode capable of sharply enhancing microphonic sensitivity when used in an electret condenser type microphone, having large charge holding power, excellent in properties as an elect...
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JP2005260208A |
To provide a thin film piezoelectric actuator having a stable structure which can be easily controlled, has a wide driving range and a low driving voltage.In a thin film piezoelectric actuator of a double-clamped beam structure having a ...
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JP2005243965A |
To provide a varactor that prevents a Q value from lowering caused by voltage application in a desired frequency, maintains the high Q value regardless of the voltage application, and lowers an insertion loss and phase characteristics.Th...
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JP2005236390A |
To provide a directivity variable array antenna having superior characteristics, such as electric power resistance, low distortion and low loss.The directivity variable array antenna 100 is provided with a radiation element 11a, to which...
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JP2005236389A |
To provide an array antenna, whose directivity can be controlled and equipped with a stable variable phase shifter with small waveform distortions and intermodulation distortions, superior withstanding power, at a low loss.In the array a...
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JP2005236391A |
To provide a variable attenuation circuit that exhibits only small waveform distortions and intermodulation distortion and that is superior in electric power resistance.The variable attenuation circuit At comprises a distributor for dist...
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JP2005217852A |
To provide a tunable filter in which a pass band is variable in a wide frequency region, the pass band can be continuously varied, insertion loss is small, an interrupting characteristic is steep, downsizing is possible, and reliability ...
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JP2005191208A |
To provide a small-size, highly reliable, and high performance electret capacitor which shows excellent moisture-proof characteristic and includes an electret formed of silicon oxide film.The electret capacitor comprises a first electrod...
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JP2005191467A |
To provide the manufacturing method of a laminated plate for electret-fixing electrode, in which charge holding force is large, charge attenuation is small, and further adhesive properties between a metal plate and an electret material l...
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JP2005184270A |
To provide a stabilized variable phase shift circuit exhibiting excellent withstand power and low loss in which waveform distortion and intermodulation distortion are suppressed.In the variable phase shift circuit P having a transmission...
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JP2005183437A |
To provide electlet capacitor which ensures excellent moisture-resistant characteristic.An electlet silicon oxide film 7 formed on a silicon substrate 6 is sandwiched by an insulating film 9 and a metal film 8, thereby preventing the sil...
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JP2005175365A |
To obtain a capacity variable substrate that can decrease parasitic capacity of a substrate, as well as adjusting its parasitic capacity, and to obtain a substrate parasitic capacity adjustment method for adjusting substrate's parasitic ...
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JP3692090B2 |
To provide a multi-layer electret having ultra-high charge stability with excellent thermal resistance so as to attain a work by the surface mount technology and to provide a method of manufacturing thereof. The multi-layer electret is c...
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JP2005150466A |
To provide a variable capacitor reduced in nonlinear distortion, high in electric power resistance, with the amount of its variable capacitance practically unaffected by high-frequency voltages.The variable capacitor has a function to ch...
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JP2005140779A |
To prevent contamination of electrical noises in a conditional electronic circuit of a capacitive fluid pressure detective transducer.The capacitive fluid pressure detective transducer (10') has a detection element (12) provided in a cap...
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JP2005136607A |
To provide a variable resonant circuit in which waveform distortion and inter-modulation distortion are small and which is superior in electric power resistance and has low loss.The variable resonant circuit R has an impedance element an...
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JP2005136074A |
To provide a capacitor which can obtain a required capacitance value with high precision and is excellent in response in a high frequency region.The lower surface of a dielectric layer 5 is smaller than the upper surface of a lower elect...
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JP2005108887A |
To provide a variable capacitor which is capable of restraining its Q-value from decreasing, due to the application of a voltage at a desired frequency, and to provide a variable filter which can be reduced in insertion loss and phase ch...
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JP2005079168A |
To provide a variable capacitor which exhibits the small rate of a capacitance change caused by high-frequency signals even when the rate of a capacitance change caused by a DC bias voltage is set large, shows a small intermodulation dis...
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JP2005508096A |
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JP2005064437A |
To provide a variable capacitor wherein a bias signal is applied stably to a varactor, miniaturization is realized, handling is easy, waveform distortion, intermodulation distortion, etc. are small, electric power resistance is also supe...
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JP2005050865A |
To provide a capacitor device which can restrain higher harmonic which is generated when a high frequency signal is inputted into a variable capacitor.In the capacitor device, a first variable capacitor C1, and a second variable capacito...
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JP2005503013A |
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JP3638160B2 |
PURPOSE: To provide an electret that has a high melting point and can be introduced to a semiconductor manufacturing process for easily achieving fine machining and thinning. CONSTITUTION: An SiO2 film 1 has a band structure consisting o...
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JP2005502186A |
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JP2005502227A |
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JP3603610B2 |
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JP2004354199A |
To provide a multivariate detection sensor capable of detecting the multivariate with a single detector, having a simple structure, and to provide a method for identifying a plurality of physical quantities for identifying the objective ...
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JP3596268B2 |
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JP3596266B2 |
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JP2004536287A |
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JP2004327868A |
To provide a capacity variable thin film capacitor element which enlarges a usable frequency range and restrains characteristic defect and deterioration of reliability, and a high frequency component using it.First to Nth variable capaci...
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