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| Number | Title | Issue Date |
| 7933112 | Micro-electromechanical voltage tunable capacitor and and filter devices Disclosed are one-port and two-port voltage-tunable micro-electromechanical capacitors, switches, and filter devices. High aspect-ratio metal micromachining is used to implement very high quality factor (Q) tunable and fixed capacitors, fixed inductors, and low inse... | 04/26/2011 |
| 7796372 | Manufacture of 3 dimensional MIM capacitors in the last metal level of an integrated circuit A method is for fabricating an integrated circuit formed from a substrate and including several metallic interconnection levels in which, in a same plane parallel to the main plane of the substrate, is a plurality of thick horizontal metallic interconnection lines, ... | 09/14/2010 |
| 7646582 | Temperature-compensated micro-electromechanical device, and method of temperature compensation in a micro-electromechanical device A micro-electromechanical device includes a semiconductor body, in which at least one first microstructure and one second microstructure of reference are integrated. The first microstructure and the second microstructure are arranged in the body so as to undergo equ... | 01/12/2010 |
| 7616425 | Photo-sensitive MEMS structure A heat-sensitive apparatus includes a substrate with a top surface, one or more bars being rotatably joined to the surface and having bimorph portions, and a plate rotatably joined to the surface and substantially rigidly joined to the one or more bars. Each bimorph... | 11/10/2009 |
| 7505246 | Variable capacitance with dielectric fluid The variable capacitance (1) according to the invention is based on a novel principle: a dielectric fluid (20) is placed in the air gap constituted by two capacitor electrodes (12, 14), the fluid being able to be displaced in a direction and out... | 03/17/2009 |
| 7499257 | Micro-electro-mechanical system varactor A micro-electro-mechanical system varactor. The varactor includes a substrate, a lower bias conductor partially overlaying the substrate, a first signal conductor partially overlaying the substrate, a dielectric layer at least partially overlaying the first signal c... | 03/03/2009 |
| 7385800 | Micro-electro-mechanical system (MEMS) capacitors, inductors, and related systems and methods According to one aspect, the subject matter described herein includes a MEMS fixed capacitor and a method for fabricating the MEMS fixed capacitor. The MEMS fixed capacitor can include a first stationary, capacitive plate on a substrate. Further, the MEMS fixed capa... | 06/10/2008 |
| 7324323 | Photo-sensitive MEMS structure A heat-sensitive apparatus includes a substrate with a top surface, one or more bars being rotatably joined to the surface and having bimorph portions, and a plate rotatably joined to the surface and substantially rigidly joined to the one or more bars. Each bimorph... | 01/29/2008 |
| 7319580 | Collapsing zipper varactor with inter-digit actuation electrodes for tunable filters According to one embodiment a microelectromechanical (MEMS) switch is disclosed. The MEMS switch includes a substrate, a plurality of actuation electrodes mounted on the substrate, a plurality of bottom electrodes mounted on the substrate, a capacitor having subcomp... | 01/15/2008 |
| 7283347 | Low cost digital variable capacitor A digital variable capacitor package is provided as having a ground plane disposed on predetermined portion of the top surface of a substrate. An elongated signal electrode may also be disposed on the substrate and including a first end defining an input and a secon... | 10/16/2007 |
| 7277267 | Multi-layer capacitive transducer A capacitive transducer of multi-layer construction includes two rotor plates supported by flexible springs, the plates being spaced apart and rigidly connected by a stem. One rotor plate my be used as either a pickup electrode or a grounded target electrode for det... | 10/02/2007 |
| 7245131 | Capacitance detection apparatus A capacitance detection apparatus includes a detection electrode for detecting approach of an object on the basis of a change of capacitance, a calculating circuit for calculating a value associated with the capacitance change, a judging circuit for judging whether ... | 07/17/2007 |
| 7242569 | Tunable capacitors using fluid dielectrics Capacitors 10, 20, 40, 50, 70, 80) having a fluid dielectric material that is transported or undergoes a phase change are disclosed. The dielectric medium change results in a change in the total dielectric constant of the material between the electrodes (1... | 07/10/2007 |
| 7215529 | Capacitive sensor having flexible polymeric conductors A capacitive sensor having a first and a second polymeric conductor are embedded within a non conducting body, wherein the body maintains a fixed separation distance between the first and the second polymeric conductor. The body can include a non conducting web, whe... | 05/08/2007 |
| 7190565 | Capacitor having reduced non-capacitive impedance An adjustable capacitor has a tubular housing including a first insulating section and a second section having a conductive portion at the exterior surface thereof forming an external terminal. An external terminal conductor is joined to an exterior terminal portion... | 03/13/2007 |
| 7161791 | Variable capacitance membrane actuator for wide band tuning of microstrip resonators and filters A device for varying the capacitance of an electronic circuit is disclosed. The device comprises a flexible membrane located above the electronic circuit, a metal layer connected to the flexible membrane, and bias circuitry located above the membrane. Variation of t... | 01/09/2007 |
| 7092232 | Variable capacitance capacitor, circuit module, and communications apparatus A variable capacitance capacitor has a plurality of variable capacitance elements, using a thin-film dielectric layer whose dielectric constant varies with voltage application, connected in series with one another between the high-frequency signal input and output t... | 08/15/2006 |
| 7085122 | MEMS tunable capacitor based on angular vertical comb drives A MEMS tunable capacitor with angular vertical comb-drive (AVC) actuators is described where high capacitances and a wide continuous tuning range is achieved in a compact space. The comb fingers rotate through a small vertical angle which allows a wider tuning range... | 08/01/2006 |
| 7082024 | Component comprising a variable capacitor A variable capacitor having a groove portion formed in an insulating substrate, two upper portions of the substrate located on either side of the groove portion forming two lateral edges, a conductive layer covering the inside of the groove portion, a flexible condu... | 07/25/2006 |
| 7078915 | Angular position sensor for rotating components such as steering columns A semi-circular dielectric rotor is attached to a steering column for rotation with the steering column. Straddling the rotor but not contacting it are an excitation electrode member which generates an electric field and a receiver electrode member that outputs sign... | 07/18/2006 |
| 7046118 | Signal processing circuit board with variable resistor which is hardly declined in the mechanical strength while its variable resistor is not limited to one particular location for the installation A signal processing circuit board includes a board body, a variable electronic element, and a hole. The variable electronic element is mounted in a mounting side of the board body. The variable electronic element has an operating member to control an output outputte... | 05/16/2006 |
| 7023210 | NMR systems employing inverted variable capacitors According to some embodiments, NMR (nuclear magnetic resonance) circuits include one or more variable capacitors each having two concentric cylindrical conductors. The inner conductor is connected to an upper external contact disposed closer to the NMR sample coil t... | 04/04/2006 |
| 7023684 | Variable position sensor employing capacitance A variable position sensor has a stationary portion and a moveable portion. A plurality of plates are positioned on one of the members with the surfaces of the plates forming segments of a larger surface. A single plate is mounted on the other of the two members. On... | 04/04/2006 |
| 7006342 | Variable capacitor having a rigidity-increasing feature A variable capacitor. The variable capacitor has a movable capacitor electrode including a major surface and a fixed capacitor electrode including a major surface. The major surface of the fixed capacitor electrode is opposite the major surface of the movable capaci... | 02/28/2006 |
| 7002787 | Capacitor apparatus of the capacity variable type The present invention is directed to a capacitor apparatus of the capacity variable type. This capacitor apparatus is manufactured by Micro Electro-Mechanical System technology, and comprises an insulating substrate (2) in which at least two capacitor electro... | 02/21/2006 |
| 6954348 | Tunable MEMS capacitor Various embodiments of tunable capacitors are disclosed. One embodiment is in the form of a tunable capacitor (368) having a pair of stationary capacitor electrodes (392) that are fixed to and disposed the same distance above a substrate (388) i... | 10/11/2005 |
| 6865066 | Voltage-controlled variable-capacitance device First and second varactors are disposed on a surface of a P-type substrate. The first varactor includes an N well disposed in the surface of the P-type substrate, a gate insulator disposed on the N well, and an N-type polysilicon layer disposed on the gate insulator... | 03/08/2005 |
| 6853534 | Tunable capacitor A tunable capacitor. The tunable capacitor has a first fixed capacitor electrode and a second fixed capacitor electrode opposite to one another. The tunable capacitor also has a movable element formed of a conductive material. The movable element is moveable between... | 02/08/2005 |
| 6785117 | Capacitive device A capacitive device includes a substrate, a movable electrode, and a fixed electrode. The movable electrode is located above a surface of the substrate and is movable with respect to the substrate along directions that are substantially orthogonal to the surface. Th... | 08/31/2004 |
| 6704186 | Capacity type pressure sensor and method of manufacturing the pressure sensor A capacitive pressure sensor includes a first substrate (1), a first flat electrode (1a) formed on the first substrate (1), a pressure-sensing frame (4) surrounding the first flat electrode (1a) provided on the first substrate (1), second substrates (2, 3... | 03/09/2004 |
| 6646525 | Microelectro-mechanical system actuator device and reconfigurable circuits utilizing same A microelectro-mechanical device which includes a fixed electrode formed on a substrate, the fixed electrode including a transparent, high resistance layer, and a moveable electrode formed with an anisotropic stress in a predetermined direction and dispos... | 11/11/2003 |
| 6628501 | Capacitive moisture sensor A capacitive moisture sensor includes a semiconductor substrate, which has a hole. A silicon oxide film is located to close the hole. A pair of electrodes is located on the silicon oxide film. Each electrode is in the shape of a comb, and the electrodes m... | 09/30/2003 |
| 6501637 | Trimmer capacitor A trimmer capacitor includes anchor portions that are arranged to be stepped down from the surface of a fixed electrode and are embedded in a stator near the upper surface of the stator at the tip portions of the fixed electrode. Because the tip portion o... | 12/31/2002 |
| 6437965 | Electronic device including multiple capacitance value MEMS capacitor and associated methods An electronic device, such as a filter or phase shifter, for example, includes a substrate, and a MEMS capacitor on the substrate and having a plurality of selectable capacitance values. The MEMS capacitor preferably includes a lower capacitor electrode o... | 08/20/2002 |
| 6430023 | Input device An input device for a personal computer or the like has an elastic member, a slider horizontally movable on the elastic member, and a key top operatively connected to the elastic member through the slider. The elastic member 5 has a coupling portion provi... | 08/06/2002 |
| 6236556 | Variable capacitor tuning apparatus A tuning head for use with a variable capacitor includes a coupler having a gap, a first optical fiber operatively coupled to the coupler, and a second optical fiber operatively coupled to the coupler. The first and second optical fibers are optically cou... | 05/22/2001 |
| 6218632 | Capacitive weight sensor The present invention is directed to a weight sensing apparatus (10) for a vehicle seat (22). The weight sensing apparatus (10) includes a differential capacitor (150) including a first capacitor (152) and a second capacitor (176). The first capacitor (15... | 04/17/2001 |
| 6211684 | Internal unbalance detection in capacitors A capacitor is made up of a housing; a first plurality of capacitors within the housing; a second plurality of capacitors within the housing; a first electrode coupled to a first terminal, with the first terminal being electrically contactable outside the... | 04/03/2001 |
| 6127908 | Microelectro-mechanical system actuator device and reconfigurable circuits utilizing same A microelectro-mechanical device which includes a fixed electrode formed on a substrate, the fixed electrode including a transparent, high resistance layer, and a moveable electrode formed with an anisotropic stress in a predetermined direction and dispos... | 10/03/2000 |
| 5991177 | Capacitive voltage transformer for a metal-enclosed, gas-filled high-voltage system The capacitive voltage transformer is provided for a metal-enclosed, gas-filled high-voltage system. It has a cylindrical capacitor having two coaxially arranged, electrically conducting cylinders (12, 13), of which one internally arranged cylinder (12) i... | 11/23/1999 |
