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412results about "Adjustable resistors" patented technology
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Resistive elements using carbon nanotubes
ActiveUS7365632B2Function increaseEasy parameter controlCurrent responsive resistorsSolid-state devicesBulk resistanceCarbon nanotube
Resistive elements include a patterned region of nanofabric having a predetermined area, where the nanofabric has a selected sheet resistance; and first and second electrical contacts contacting the patterned region of nanofabric and in spaced relation to each other. The resistance of the element between the first and second electrical contacts is determined by the selected sheet resistance of the nanofabric, the area of nanofabric, and the spaced relation of the first and second electrical contacts. The bulk resistance is tunable.
Owner:NANTERO
Catheter with thin film pressure sensing distal tip
A mapping and ablation catheter has contact force sensing capabilities at a distal end. In one embodiment, the catheter includes a catheter body, a deflectable section, and a tip distal tip section which has a tip electrode with a thin-film pressure sensor that is adapted to detect a force vector applied to the tip electrode. The thin-film pressure sensor includes two opposing flexible and thin support members containing a pressure-sensitive material therebetween whose resistivity changes as a result of pressure and is detected by trace electrode intersections supported on interfacing surfaces of the flexible and thin support members. Used with a stop member having a conforming shape against which the thin-film pressure sensor abuts when a force vector is applied to the tip electrode, the pressure sensor can have a 2-D, radially-symmetrical shape, e.g., a disc or ring configuration, or a 3-D, radially-symmetrical shape, e.g., a conical configuration.
Owner:BIOSENSE WEBSTER INC
Drift-sensitive laser trimming of circuit elements
InactiveUS6875950B2Improve throughputPrinted electric component incorporationResistor trimmingInductorCapacitor
Owner:ELECTRO SCI IND INC
Resistive elements using carbon nanotubes
ActiveUS20070236325A1Easy parameter controlFunction increaseCurrent responsive resistorsSolid-state devicesBulk resistanceCarbon nanotube
Resistive elements include a patterned region of nanofabric having a predetermined area, where the nanofabric has a selected sheet resistance; and first and second electrical contacts contacting the patterned region of nanofabric and in spaced relation to each other. The resistance of the element between the first and second electrical contacts is determined by the selected sheet resistance of the nanofabric, the area of nanofabric, and the spaced relation of the first and second electrical contacts. The bulk resistance is tunable.
Owner:NANTERO
Method of producing printed circuit board with embedded resistor
InactiveUS20050175385A1Improve workabilityResistance value change remains constantSemiconductor/solid-state device detailsSolid-state devicesProduction rateScreen printing
Disclosed is a method of producing a printed circuit board (PCB) with an embedded resistor, in which a resistor with a desired shape and volume is precisely formed using a resistor paste so that resistance values according to a position of the PCB are uniform, thereby a laser trimming process is omitted or minimally utilized. The method has advantages in that a production time of the PCB is shortened and productivity is improved because an operation condition is rapidly set without being greatly affected by the position precision of a printing device. Other advantages of the method are that the resistor paste with a relatively uniform thickness is secured through a screen printing process, thereby easily forming the resistor and improving resistance tolerance.
Owner:SAMSUNG ELECTRO MECHANICS CO LTD
Metal plate resistor
ActiveUS20050258930A1Highly stable against agingImprove stabilityResistor terminals/electrodesAdjustable resistorsElectrical conductorBiomedical engineering
A metal plate resistor includes a resistive body comprising a metal plate, and at least a pair of electrodes joined respectively to opposite ends of the resistive body, the electrodes being made of a highly conductive metal conductor. The resistive body has a main section positioned between the electrodes and a pair of electrode sections progressively wider than the main section in directions away from the main section. The electrodes are disposed respectively beneath the electrode sections and identical in shape to the electrode sections.
Owner:KOA CORP
Electronic device having protection panel
InactiveUS8243225B2Prevents and suppresses growth in sizeDigital data processing detailsElectrical apparatus contructional detailsDisplay deviceRoom temperature
An electronic device having a protection panel includes: a display device (3) having a display part (3A); a housing (2) for mounting the display device (3) therein which has a display window (2A) including an opening for allowing the display part (3A) to face externally and a supporting portion (2b) in a shape of a frame; a protection panel (4) fitted into the display window (2A), whose back side rim portion is supported by the supporting portion (2b); and a pressure-sensitive conductive print layer (30) which is disposed between the protection panel (4) and the supporting portion (2b) and configured to detect a pressing operation on the protection panel (4), and includes a resin having a glass-transition temperature (Tg) in a temperature range higher than room temperature as binder, and a conductive material dispersed therein.
Owner:NISSHA PRINTING COMPANY
Method for trimming resistors
InactiveUS7119656B2Efficient pruningReduce the amount requiredSolid-state devicesSemiconductor/solid-state device manufacturingElectrical resistance and conductanceEngineering
There is provided a method and circuit for trimming a functional resistor on a thermally isolated micro-platform such that a second functional resistor on the same micro-platform remains substantially untrimmed; a method and circuit for providing and trimming a circuit such that at least two circuit elements of the circuit are subjected to a same operating environment and the operating environment is compensated for by distributing heat generated during operation of the circuit among the two circuit elements; a method and circuit for trimming a functional resistor on a thermally-isolated micro-platform such that a constant temperature distribution is obtained across the functional resistor; and a method and circuit for calculating a temperature coefficient of resistance of a functional resistor.
Owner:SENSORTECHNICS
Metal plate resistor
ActiveUS7053749B2Improve stabilityReduce heat fatigueResistor terminals/electrodesAdjustable resistorsElectrical conductorBiomedical engineering
A metal plate resistor includes a resistive body comprising a metal plate, and at least a pair of electrodes joined respectively to opposite ends of the resistive body, the electrodes being made of a highly conductive metal conductor. The resistive body has a main section positioned between the electrodes and a pair of electrode sections progressively wider than the main section in directions away from the main section. The electrodes are disposed respectively beneath the electrode sections and identical in shape to the electrode sections.
Owner:KOA CORP
Ball grid array resistor network
A ball grid array resistor network has a planar substrate formed of an organic material. The substrate preferably is a printed circuit board. The substrate has a top and bottom surface. A ball pad is located on the bottom surface. A low temperature resistor is located on the bottom surface and is connected to the ball pad. A solder mask is located over the first surface except for the ball pads. A conductive ball is attached to the ball pad. A reflowed solder paste connects the conductive ball to the ball pad. Several embodiments of the invention are shown.
Owner:CTS CORP ELKHART
Electrically tunable on-chip resistor
InactiveUS6960744B2Improve circuit performanceResistance of the resistorElectric heatingCurrent responsive resistorsElectrical resistance and conductanceEngineering
A device having a resistor and a heater disposed proximate to the resistor and capable of raising the temperature of the resistor. The device further includes a dieletric disposed between the heater and the resistor and a tuner electrically coupled to the resistor. The heater adjusts the resistance of the resistor in response to the tuner.
Owner:INT BUSINESS MASCH CORP
Method for fabricating embedded thin film resistors of printed circuit board
InactiveUS7213327B2Finer circuit layoutSmall sizePrinted circuit assemblingElectrically conductive connectionsManufacturing cost reductionPrinted circuit board
A method for fabricating the embedded thin film resistors of a printed circuit board is provided. The embedded thin film resistors are formed using a resistor layer built in the printed circuit board. Compared with conventional discrete resistors, embedded thin film resistors contribute to a smaller printed circuit board as the space for installing conventional resistors is saved, and better signal transmission speed and quality as the capacitive reactance effect caused by two connectors of the conventional resistors is avoided. The method for fabricating the embedded thin film resistors provided by the invention can be conducted using the process and equipment for conventional printed circuit boards and thereby saving the investment on new types of equipment. The method can be applied in the mass production of printed circuit boards and thereby reduce the manufacturing cost significantly.
Owner:SU SUNG LING
Electronic Device Having Protection Panel
InactiveUS20110026202A1Increase in sizeLow maneuverabilityDigital data processing detailsElectrical apparatus contructional detailsDisplay deviceRoom temperature
An electronic device having a protection panel includes: a display device (3) having a display part (3A); a housing (2) for mounting the display device (3) therein which has a display window (2A) including an opening for allowing the display part (3A) to face externally and a supporting portion (2b) in a shape of a frame; a protection panel (4) fitted into the display window (2A), whose back side rim portion is supported by the supporting portion (2b); and a pressure-sensitive conductive print layer (30) which is disposed between the protection panel (4) and the supporting portion (2b) and configured to detect a pressing operation on the protection panel (4), and includes a resin having a glass-transition temperature (Tg) in a temperature range higher than room temperature as binder, and a conductive material dispersed therein.
Owner:NISSHA PRINTING COMPANY
Passive component
InactiveUS6529116B2High resistivityImprove signal-to-noise ratioThin/thick film capacitorStacked capacitorsElectrical resistance and conductanceEngineering
The passive component (1) has a first part (22) of a material with a first resistance value, which value can be lowered to a second value by laser trimming. The second value is at most one tenth of the first value and preferably less. The material crystallizes in a laser trimming process, which locally heats the material to at least a transition temperature. The material contains at least two different elements, which are preferably aluminum and germanium.The passive component (1) may be, for example, a resistor or a capacitor and may be part of a thin-film network of resistors, capacitors and / or inductors. In a resistor, it is preferred to have a second part (4) which contains a different resistance material with a resistance value lower than the first value and preferably higher than the second value.
Owner:KONINKLIJKE PHILIPS ELECTRONICS NV
Cartridge for an aerosol-generating system with customizable indentification resistance
ActiveUS20170135405A1Increase flexibilitySimplify production and manufactureTobacco devicesResistor housing/enclosing/embeddingElectrical resistance and conductanceEmbedded system
In a method of manufacturing a cartridge of an electronic vaping device, wherein the cartridge includes a pre-vapor formulation storage element, an electrical resistor is physically manipulated to change a resistance of the electrical resistor from a first resistance value to a second resistance value, the second resistance value indicative of a pre-vapor formulation substrate contained in the pre-vapor formulation storage element. The electrical resistor is then mounted to a portion of the cartridge.
Owner:AKRIA CLIENT SERVICES LLC
Multilayer filter
ActiveUS7652554B2Reduce flakingExcellent inductor characteristicMultiple-port networksSolid-state devicesElectrical conductorInductor
An object of the present invention is to provide a multilayer filter constructed so as to be less likely to suffer peeling between a varistor part and an inductor part. A multilayer filter 10 as a preferred embodiment has a structure in which a varistor part 20 and an inductor part are stacked. The varistor part 30 consists of a stack of varistor layers 31, 32 with internal electrodes 31a, 32a, and the varistor layers contain ZnO as a principal component, and contain at least one element selected from the group consisting of Pr and Bi, Co, and Al as additives. The inductor part 20 consists of a stack of inductor layers 21-24 with conductor patterns 21a-24a, and the inductor layers contain ZnO as a principal component and substantially contain neither Co nor Al.
Owner:TDK CORPARATION
Circuitized substrate with dielectric interposer assembly and method
InactiveUS20120152605A1Printed circuit assemblingPrinted resistor incorporationDielectricEngineering
A circuitized substrate and method of making same in which quantities of thru-holes are formed within a dielectric interposer layer. The substrate includes two printed circuit board (PCB) layers bonded to opposing sides of the interposer with electrically conductive features of each PCB aligned with the interposer thru-holes. Resistive paste is positioned on the conductive features located adjacent the thru-holes to form controlled electrically resistive connections between conductive features of the two PCBs. A circuitized substrate assembly and method of making same are also disclosed.
Owner:TTM TECH NORTH AMERICA LLC
Method for fabricating embedded thin film resistors of printed circuit board
InactiveUS20050196966A1Finer circuit layoutSmall sizePrinted circuit assemblingElectrically conductive connectionsManufacturing cost reductionHigh volume manufacturing
A method for fabricating the embedded thin film resistors of a printed circuit board is provided. The embedded thin film resistors are formed using a resistor layer built in the printed circuit board. Compared with conventional discrete resistors, embedded thin film resistors contribute to a smaller printed circuit board as the space for installing conventional resistors is saved, and better signal transmission speed and quality as the capacitive reactance effect caused by two connectors of the conventional resistors is avoided. The method for fabricating the embedded thin film resistors provided by the invention can be conducted using the process and equipment for conventional printed circuit boards and thereby saving the investment on new types of equipment. The method can be applied in the mass production of printed circuit boards and thereby reduce the manufacturing cost significantly.
Owner:SU SUNG LING
Power resistor
InactiveUS7843309B2Spread heatElongated resistive elementResistor cooling/heating/ventillationMetal stripsElectrical resistance and conductance
A resistor includes first and second opposite terminations, a resistive element formed from a plurality of resistive element segments between the first and second opposite terminations, at least one segmenting conductive strip separating two of the resistive element segments, and at least one open area between the first and second opposite terminations and separating at least two resistive element segments. Separation of the plurality of resistive element segments assists in spreading heat throughout the resistor. The resistor or other electronic component may be packaged by bonding to a heat sink tab with a thermally conductive and electrically insulative material. The resistive element may be a metal strip, a foil, or film material.
Owner:VISHAY DALE ELECTRONICS INC
Chip resistor having low resistance and its producing method
ActiveUS20050200451A1ResistanceIncreasing the thicknessResistor chip manufactureResistor detailsElectrical resistance and conductanceAlloy
A chip resistor includes a resistor element of a rectangular solid made of an alloy composed of high-resistant metal and low-resistant metal, while also including connection terminal electrodes disposed at the ends of the resistor element that are spaced longitudinally of the rectangular solid. The resistance of the chip resistor is expected to be lowered without incurring an increase in the temperature coefficient of resistance and the weight. The above object is attained by forming a plating layer on the resistor element, where the plating layer is made of pure metal having a lower resistance than that of the alloy constituting the resistor element.
Owner:ROHM CO LTD
Resistor, and method for making same
ActiveUS20090195348A1Suitable for useElectrical measurement instrument detailsElectrical testingEngineeringResistor
A resistor includes a substantially cylindrical resistive element having a resistance of less than about 1 mΩ, a substantially cylindrical first termination electrically connected to the resistive element and a second termination electrically connected to the resistive element. The substantially cylindrical first termination is hollow to allow for accepting a connection such as from a battery cable. In addition there may be sense leads present on the resistor. A method of forming a substantially cylindrical resistor includes forming a hollow cylindrical resistor body by rolling a flat sheet comprising a resistive element and a first termination and a second termination joined on opposite ends of the resistive element.
Owner:VISHAY DALE ELECTRONICS INC
Method and apparatus for calibrating a thermistor
InactiveUS20060104330A1Thermometers using electric/magnetic elementsUsing electrical meansElectrical resistance and conductanceEngineering
The presently described embodiments are directed to a calibration method and system for thin film thermistors that are locally heated with integrated thin film heaters. Initially, print head temperature is either measured or referenced. Then, transient thermistor resistances are measured and used to determine the thermistor resistance at a higher temperature. Notably, this calibration method is advantageously implemented as a step of an existing process without having to expose the print heads to operating temperatures. In some implementations of the presently described embodiments, trimming of the thermistors may be required once calibrated.
Owner:PALO ALTO RES CENT INC
Temperature detector/indicator
InactiveUS20060203882A1Inhibited DiffusionImprove conductivityThermometers using mean/integrated valuesLayered productsElectricityConductive polymer
Owner:AVANTONE OY
Method of making circuitized substrates having film resistors as part thereof
InactiveUS20090178271A1Low costPrinted circuit aspectsInspection/indentification of circuitsElectrical resistance and conductanceEngineering
A method of making a circuitized substrate which involves forming a plurality of individual film resistors having approximate resistance values as part of at least one circuit of the substrate, measuring the resistance of a representative (sample) resistor to define its resistance, utilizing these measurements to determine the corresponding precise width of other, remaining film resistors located in a defined proximity relative to the representative resistor such that these remaining film resistors will include a defined resistance value, and then selectively isolating defined portions of the resistive material of these remaining film resistors while simultaneously defining the precise width of the resistive material in order that these film resistors will possess the defined resistance.
Owner:I3 ELECTRONICS
Catheter with thin film pressure sensing distal tip
A mapping and ablation catheter has contact force sensing capabilities at a distal end. In one embodiment, the catheter includes a catheter body, a deflectable section, and a tip distal tip section which has a tip electrode with a thin-film pressure sensor that is adapted to detect a force vector applied to the tip electrode. The thin-film pressure sensor includes two opposing flexible and thin support members containing a pressure-sensitive material therebetween whose resistivity changes as a result of pressure and is detected by trace electrode intersections supported on interfacing surfaces of the flexible and thin support members. Used with a stop member having a conforming shape against which the thin-film pressure sensor abuts when a force vector is applied to the tip electrode, the pressure sensor can have a 2-D, radially-symmetrical shape, e.g., a disc or ring configuration, or a 3-D, radially-symmetrical shape, e.g., a conical configuration.
Owner:BIOSENSE WEBSTER INC
Thin film resistor and method of forming the resistor on spaced-apart conductive pads
A thin film resistor is formed to have very accurately defined dimensions which, in turn, allow the resistive value of the resistor to be very accurately defined. The resistor is formed on spaced-apart conductive pads which, in turn, are electrically connected to conductive plugs that are spaced apart from the resistor.
Owner:NAT SEMICON CORP
Heater design for heat-trimmed thin film resistors
ActiveUS20120119872A1Reduce sheet resistanceLow heat generationSemiconductor/solid-state device detailsSolid-state devicesEngineeringCurrent pulse
A heater design for post-process trimming of thin-film transistors is described. The heater incorporates low sheet-resistance material deposited in non-active connecting regions of the heater to reduce heat generation and power consumption in areas distant from active heating members of the heater. The heating members are proximal to a thin-film resistor. The resistance of the thin-film resistor can be trimmed permanently to a desired value by applying short current pulses to the heater. Optimization of a heater design is described. Trimming currents can be as low as 20 mA.
Owner:STMICROELECTRONICS PTE LTD
Method of forming passive electronic components on a substrate by direct write technique using shaped uniform laser beam
InactiveUS20060261924A1Sufficient accuracySolve the lack of precisionResistor chip manufactureThin/thick film capacitorElectrical resistance and conductanceConductive materials
A method of using a laser to achieve direct patterning of resistive or electrically conductive materials in the fabrication of miniature electronic components entails aligning with a patterned array-carrying major surface a laser beam that has a sufficient spot size and energy distribution to remove selected portions of resistive or conductive material that has been applied to the substrate. The major surface carrying the resistive or conductive material and the laser beam are moved relative to each other such that the laser beam ablates, or otherwise removes, selected portions of the resistive or conductive material. Thus preferred embodiments of the method form an array of multiple, mutually spaced-apart resistive or conductive material regions whose side and end margins have improved dimensional precision.
Owner:ELECTRO SCI IND INC
Method for trimming resistors
InactiveUS7249409B2Efficient pruningReduce the amount requiredWave amplification devicesThermometers using electric/magnetic elementsElectrical resistance and conductanceTemperature coefficient
There is provided a method and circuit for trimming a functional resistor on a thermally isolated micro-platform such that a second functional resistor on the same micro-platform remains substantially untrimmed; a method and circuit for providing and trimming a circuit such that at least two circuit elements of the circuit are subjected to a same operating environment and the operating environment is compensated for by distributing heat generated during operation of the circuit among the two circuit elements; a method and circuit for trimming a functional resistor on a thermally-isolated micro-platform such that a constant temperature distribution is obtained across the functional resistor; and a method and circuit for calculating a temperature coefficient of resistance of a functional resistor.
Owner:SENSORTECHNICS
Polymer Composition
InactiveUS20110253948A1Reduce the numberLess sharpConductive materialForce measurementConductive polymerPolymer chemistry
A polymer composition comprises at least one substantially non-conductive polymer binder and at least first and second electrically conductive fillers. The first electrically conductive filler is comprised of particles having avoid-bearing structure; and the second electrically conductive filler is comprised of particles which are acicular in shape.
Owner:PERATECH HOLDCO
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