Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 8188832 | Near zero TCR resistor configurations A microchip resistor device is disclosed in which first and second resistive elements are formed on a substrate. The first resistive element has a first resistance value and a positive temperature coefficient of resistance (TCR) over a selected temperature range. Th... | 05/29/2012 |
| 8054156 | Low variation resistor This document discloses low variation resistor devices, methods, systems, and methods of manufacturing the same. In some implementations, a low-variation resistor can be implemented with a metal-oxide-semiconductor field-effect-transistor (“MOSFET”) operating in... | 11/08/2011 |
| 7982579 | Metal foil resistor The metal foil resistor having a metal foil resistive element 20 composed of a metal foil whereupon a resistance circuit pattern is formed. The metal foil resistor comprises: a package 10 which contains the metal foil resistive element 20 in an ... | 07/19/2011 |
| 7278201 | Method of manufacturing a resistor A high precision power resistor having the improved property of reduced resistance change due to power is disclosed. The resistor includes a substrate having first and second flat surfaces and having a shape and a composition; a resistive foil having a low TCR of ab... | 10/09/2007 |
| 7253074 | Temperature-compensated resistor and fabrication method therefor A method for forming a temperature-compensated resistor on a semiconductor substrate is provided. A resistor element is formed on the semiconductor substrate. Terminal contacts are formed on the ends of the resistor element. A temperature-compensating configuration ... | 08/07/2007 |
| 7154370 | High precision power resistors A high precision power resistor having the improved property of reduced resistance change due to power is disclosed. The resistor includes a substrate having first and second flat surfaces and having a shape and a composition; a resistive foil having a low TCR of ab... | 12/26/2006 |
| 7119657 | Polysilicon resistor semiconductor device A semiconductor device includes a polysilicon resistor that can suppress variations in resistance value in environments with an ambient temperature higher than room temperature. The resistance value Rcon of a polysilicon contact is reduced to 2% or less o... | 10/10/2006 |
| 7087981 | Metal semiconductor contact, semiconductor component, integrated circuit arrangement and method The present invention relates to a metal-semiconductor contact comprising a semiconductor layer and comprising a metallization applied to the semiconductor layer, a high dopant concentration being introduced into the semiconductor layer such that a non-reactive meta... | 08/08/2006 |
| 7012499 | Method of fabrication of thin film resistor with 0 TCR A thin film resistor that has a substantially zero TCR is provided as well as a method for fabricating the same. The thin film resistor includes at least two resistor materials located over one another. Each resistor material has a different temperature coefficient ... | 03/14/2006 |
| 6960979 | Low temperature coefficient resistor A resistor having a desired temperature coefficient of resistance and a total electrical resistance. A first resistor segment has a first temperature coefficient of resistance and a first electrical resistance. A second resistor segment has a second temperature coef... | 11/01/2005 |
| 6880234 | Method for thin film NTC thermistor A method for manufacturing a thin film negative temperature coefficient thermistor is disclosed. The method includes selecting a negative temperature coefficient of resistance versus temperature curve, selecting a mixture of metal film materials to provide the negat... | 04/19/2005 |
| 6700473 | Pressure transducer employing on-chip resistor compensation A dielectrically isolated temperature compensated pressure transducer including: a wafer including a deflectable diaphragm formed therein, the diaphragm being capable of deflecting in response to an applied pressure, and the diaphragm defining an active r... | 03/02/2004 |
| 6646539 | Temperature-compensated semiconductor resistor and semiconductor integrated circuit having the semiconductor resistor A temperature-compensated semiconductor resistor includes two series-connected semiconductor resistance elements having mutually inverse resistive temperature-dependent responses in a temperature range of interest. The semiconductor resistance elements ar... | 11/11/2003 |
| 6621404 | Low temperature coefficient resistor A resistor having a desired temperature coefficient of resistance and a total electrical resistance. A first resistor segment has a first temperature coefficient of resistance and a first electrical resistance. A second resistor segment has a second tempe... | 09/16/2003 |
| 6492709 | Arrangement for compensating for temperature dependent variations in surface resistance of a resistor on a chip To compensate for temperature dependent variations and process variations in surface resistance of a main resistor (R1) on a chip (1), one or more compensating resistors (R11, R12. . . R1n) can be connected in series with the first resistor (R1) via norma... | 12/10/2002 |
| 6211769 | System to minimize the temperature coefficient of resistance of passive resistors in an integrated circuit process flow An integrated circuit containing a resistor and the resistor per se. The circuit includes a substrate (2), a semiconductor resistor (3) on the substrate and a layer of electrically insulating material (5) disposed over the substrate and the semiconductor ... | 04/03/2001 |
| 6153861 | Heating element for lambda sensors A heating element, preferably for oblong plate-shaped sensors for measuring oxygen concentration in internal combustion engine exhaust gas, has a conductive heating strip at one end of the heating element and electrical conductors which are connected elec... | 11/28/2000 |
| 6093308 | Sensors for detecting analytes in fluids Chemical sensors for detecting analytes in fluids comprise first and second conductive elements (e.g., electrical leads) electrically coupled to and separated by a chemically sensitive resistor which provides an electrical path between the conductive elem... | 07/25/2000 |
| 6010616 | Sensor arrays for detecting analytes in fluids A sensor array for detecting an analyte in a fluid, comprising at least first and second chemically sensitive resistors electrically connected to an electrical measuring apparatus, wherein each of the chemically sensitive resistors comprises a mixture of ... | 01/04/2000 |
| 5994996 | Thin-film resistor and resistance material for a thin-film resistor A metal alloy having an intrinsically low TCR, and which preferably comprises a metal oxide and forms part of the resistance material in a quantity of 15-60 vol. %. The best results are achieved with a resistance material which comprises an alloy of CuNi ... | 11/30/1999 |
| 5951846 | Sensor arrays for detecting analytes in fluids Chemical sensors for detecting analytes in fluids comprise first and second conductive elements (e.g. electrical leads) electrically coupled to and separated by a chemically sensitive resistor which provides an electrical path between the conductive eleme... | 09/14/1999 |
| 5911872 | Sensors for detecting analytes in fluids Chemical sensors for detecting analytes in fluids comprise first and second conductive elements (e.g., electrical leads) electrically coupled to and separated by a chemically sensitive resistor which provides an electrical path between the conductive elem... | 06/15/1999 |
| 5891398 | Sensor arrays for detecting analytes in fluids Chemical sensors for detecting analytes in fluids comprise first and second conductive elements (e.g. electrical leads) electrically coupled to and separated by a chemically sensitive resistor which provides an electrical path between the conductive eleme... | 04/06/1999 |
| 5889459 | Metal oxide film resistor According to the present invention, there is provided a metal oxide film resistor which has an insulating substrate, a metal oxide resistive film having at least a metal oxide film having a positive temperature coefficient of resistance and/or a metal oxi... | 03/30/1999 |
| 5867083 | Protective device for surge current protection of associated equipment in communications systems A small-size high-performance electronic protective device (10) is provided for use in protecting communication equipment including an exchange servicing module against application of abnormal surge current due to accidental shorts between adjacent ones o... | 02/02/1999 |
| 5858533 | Composite material A varistor and a PTC resistor formed from a composite material containing a polymer matrix and a filler. The varistor experiences two nonlinear changes caused by the current due to applied voltage, the varistor comprising a composite material comprising a... | 01/12/1999 |
| 5656987 | Resistance temperature sensor In order to improve uniformity of temperature distribution, despite heat which is generated in a resistance circuit and flows into a support part thereby causing a high output, a resistance circuit is provided with first, second and third regions having d... | 08/12/1997 |
| 5417478 | Electrohydraulic braking system with carbon-pile voltage regulator A braking system for a vehicle such as a trailer having electric brakes which utilizes a carbon-pile voltage regulator. A piston of the regulator is responsive to hydraulic pressures occurring in the tow vehicle brake system to bias the disks to increase ... | 05/23/1995 |
| 5300919 | Vibration and shock-resistant film-type power resistor The power resistor has a metal housing and heatsink, the bottom wall of which is planar and has a bolt hole therethrough for tight securing of the resistor to a chassis. A planar film-type power resistor is mounted in the housing and encapsulated therein,... | 04/05/1994 |
| 5291175 | Limiting heat flow in planar, high-density power resistors A chip resistor whose resistive element provides a power density of at least 20 watts per square inch is provided with an air gap between the resistance element and the electrical contact junctions of the conductive strips electrically connected to the re... | 03/01/1994 |
| 5240511 | Lightly doped polycrystalline silicon resistor having a non-negative temperature coefficient A method of fabricating polycrystalline silicon resistors having nearly zero or positive temperature coefficient includes the steps of depositing a layer of polycrystalline silicon, implanting the layer with silicon to make the layer substantially amorpho... | 08/31/1993 |
| 5192940 | Flat resistance for blower control unit for automobile air conditioner and blower control unit using the same A flat resistance for a blower control unit of an automobile air conditioner, and a blower control unit using the same. The flat resistance includes: a porcelain enameled metallic substrate including a flat head portion, having an edge and one surface, an... | 03/09/1993 |
| 5039976 | High-precision, high-stability resistor elements A high-precision and high-stability resistor element, which exhibits zero, or close to zero, resistance deviation during time and in given temperature and power ranges, includes a bonded sandwich of several substrates of inorganic insulating material havi... | 08/13/1991 |
| 5017340 | Temperature compensated resistive type sensor for the measurement of relative concentrations of fluid reactive species Disclosed is an oxygen sensor of the resistive type for the measurement of relative fluid concentrations of fluid reactive species. The following are disposed on one and the same substrate: a sensitive element, the resistivity of which is sensitive to an exces... | 05/21/1991 |
| 5010315 | Thermal radiation sensor A thermal radiation sensor is suggested which comprises two receiver surfaces exposed to the radiation, one receiver surface (1) having a high absorption capacity with respect to the thermal radiation, the other (2) having a low absorption capacity, the t... | 04/23/1991 |
| 4939498 | PTC thermistor device with PTC thermistor unit housed in case A PTC thermistor device includes a case in which a holding plate made of metallic material is vertically arranged; and on each of both main surfaces of the holding plate, an electrode from a respective one of two PTC thermistor units is fixed. Therefore, ... | 07/03/1990 |
| 4677413 | Precision power resistor with very low temperature coefficient of resistance A precision resistor exhibiting a temperature coefficient of resistance which is very low and which is virtually independent of time, and capable of accepting high power, comprises a resistive foil applied to a substrate by means of an appropriate cement,... | 06/30/1987 |
| 4644316 | Positive temperature coefficient thermistor device A PTC thermistor device includes a heat conductive ceramic case having an aperture at one end and a groove recessed from the aperture; a plate-like PTC thermistor body having electrodes thereon, with a first major portion mounted in the groove in such a m... | 02/17/1987 |
| 4584552 | Hall element with improved composite substrate A magnetoelectric transducer includes a high mobility semiconductor thin film formed on a layer such as an alumina film. Processing to form the device is improved by simultaneous patterning of the semiconductor thin film and an electrode layer. Improved r... | 04/22/1986 |
| 4541898 | Method for heating A heating element comprises a resistor comprising a plurality of fine particles or thin films having a negative temperature coefficient of electrical resistance, and highly resistant region layers interposed between the fine particles or thin films, at le... | 09/17/1985 |
