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| Number | Title | Issue Date |
| 7551055 | Resistor having uniform resistance and semiconductor device using the same A resistor having a uniform resistance, in which a serial resistance of resistors with different resistance temperature coefficients is not influenced by change in temperature, and a semiconductor device using the same includes: a first resistor having a first width... | 06/23/2009 |
| 7305754 | Method of manufacturing chip resistor In manufacturing a chip resistor by dividing a chip resistance substrate which includes an insulator, resistance film formed on a surface of the insulator, and a plurality of conductive strips disposed on the resistance film at fixed intervals, grooves are formed by... | 12/11/2007 |
| 7268663 | Precision thin film AC voltage divider A precision AC input voltage divider of input resistance RI and feedback resistance RF on a substrate is printed as a serpentine pattern for a thin line of resistive material. The input resistance is formed between a first and second terminal, ... | 09/11/2007 |
| 7269239 | Simple two-wire communication protocol with feedback status A two-wire communication protocol between a controller device and a controlled device, wherein both devices are coupled by a clock line and a data line. The controller device sends control signals comprising N bits, N being greater than or equal to two, to the contr... | 09/11/2007 |
| 7193500 | Thin film resistors of different materials An integrated circuit includes a bilayer thin film resistor in which the lower layer is a seed layer that controls the crystal structure of the upper layer. The thickness of the lower layer and the thickness of the upper layer may be chosen to form a resistor with a... | 03/20/2007 |
| 7170389 | Apparatus for tantalum pentoxide moisture barrier in film resistors The present invention discloses a method of manufacturing a thin resistor with a moisture barrier by depositing a metal film layer on a substrate and depositing a layer of tantalum pentoxide film overlaying the metal film layer. The present invention also includes a... | 01/30/2007 |
| 7106120 | PCMO resistor trimmer Using programmable resistance material for a matching resistor, a resistor trimming circuit is designed to reversibly trim a matching resistor to match a reference resistor. The programmable resistance materials such as metal-amorphous silicon metal materials, phase... | 09/12/2006 |
| 7084691 | Mono-polarity switchable PCMO resistor trimmer Using programmable resistance material for a matching resistor, a resistor trimming circuit is designed to reversibly trim a matching resistor to match a reference resistor. The programmable resistance materials such as metal-amorphous silicon metal materials, phase... | 08/01/2006 |
| 7079004 | Precision thin film AC voltage divider A precision AC input voltage divider on a substrate is printed as a serpentine pattern for a thin line of resistive material. Bothersome original “bad” stray capacitances to a ground, particularly those to or from the middle of the serpentine, are effectively re... | 07/18/2006 |
| 7030727 | High voltage variable resistor device A high voltage variable resistor device includes film resistors of fixed divided resistors and a variable divided resistor, fixed resistors, a variable resistor for adjusting focus voltage, and a variable resistor for adjusting screen voltage, which are formed on th... | 04/18/2006 |
| 6975031 | Semiconductor device and chip carrier There are provided a carrier substrate, a temperature sensing resistor film formed directly on the carrier substrate, first and second conductive patterns formed on the carrier substrate and connected to both ends of the temperature sensing resistor film respectivel... | 12/13/2005 |
| 6960744 | Electrically tunable on-chip resistor 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. ... | 11/01/2005 |
| 6862164 | Circuit protection arrangement A circuit protection arrangement particularly useful in protecting battery assemblies. The arrangement contains a first PTC device which has a first switching temperature Ts1, has a resistance at 20° C. R1, has a hold current at a first specif... | 03/01/2005 |
| 6747543 | Resistor for driving motor for air conditioner blower A resistor for driving a motor for an air conditioner blower is provided, in which internal resistance bodies are stacked over one after another between insulation plates in the resistor, to accordingly reduce the volume of the entire of the resistor is reduced, and... | 06/08/2004 |
| 6677850 | Layered current sensor An electrical current sensor and utility electricity meter, the current sensor comprising a π resistor shunt configuration, wherein the resistors comprise layered conductors at substantially equal temperatures to provide a zero temperature coefficient se... | 01/13/2004 |
| 6420956 | Detection device in which output varies with amount by which elastically deformable contact element is pressed A first resistive element and a second resistive element are serially connected to each other, and a contact element having a lower resistivity than the first resistive element elastically contacts the first resistive element. The resistance between both ... | 07/16/2002 |
| 6232868 | Hybrid circuit arrangement with overload protection Hybrid circuit arrangement having a resistance layer applied at least on one side of a plate-shaped substrate of glass or ceramic and having at least one overload protection arranged on the substrate that is electrically connected to the resistance layer,... | 05/15/2001 |
| 6184494 | Printed circuit board having a heating element and heating method thereof The present invention relates to a heating method and a printed circuit board comprising a heating element which generates heat required to heat printed circuit board components. The printed circuit board comprises heat conductor between the heating eleme... | 02/06/2001 |
| 6166619 | Overcurrent limiter having inductive compensation Current limiters, preferably PTC resistors, are used for limiting short-circuit current when connected in series to capacitors and converter valves. Protective devices operating with these PTC resistors are able to work reversibly and respond without arci... | 12/26/2000 |
| 5990778 | Current-limiting resistor having PTC behavior The current-limiting resistor has two connection electrodes (1, 2) which are arranged parallel to one another, a resistance body (3) which has PTC behavior and with which large-area contact is made by the connection electrodes (1, 2) and at least one vari... | 11/23/1999 |
| 5917401 | Conductive bus member and method of fabricating same A conductive bus member operable over a selected operating frequency range includes a cylindrical main body and first and second legs secured to the main body at first and second points whereby first and second current paths having first and second impeda... | 06/29/1999 |
| 5635893 | Resistor structure and integrated circuit A resistor structure (10) having a heating element (35) and a resistor (32), and a method of trimming the resistor (32). The heating element (35) is separated from the resistor (32) by a layer of dielectric material (19). The resistor (32) has a layer of ... | 06/03/1997 |
| 5399962 | Apparatus for detecting damped wave disturbances An apparatus for detecting damped wave disturbances includes a hollow tubular housing of electrically nonconductive material with a pair of electrodes extending through apertures in each end of the housing such that the inner ends of the electrodes are sp... | 03/21/1995 |
| 5379022 | Thermistor device with extended operating range A thermistor device includes plural thermistor elements in series, one or more of which is shunted with a varistor so that if such thermistor heats up and drops excessive voltage, the current therethrough is diverted to the varistor until other thermistor... | 01/03/1995 |
| 5319345 | Variable resistor A variable resistor is provided with a series resistor network including first, second and third resistor parts which are connected in series, where the second resistor part is connected to the first and third resistor parts via first and second nodes, re... | 06/07/1994 |
| 5045832 | Digitally controlled variable resistor A compact and inexpensive variable resistor circuit has a value of resistance that can be set by a data signal. The variable resistor includes a number of variable individual resistances connected in series, and an electronic switch connected in parallel ... | 09/03/1991 |
| 4810948 | Constant-voltage regulated power supply circuit A constant-voltage regulated power supply circuit has an input circuit and an output circuit. The sense circuit includes a programmable sense circuit that further includes a divider network with a plurality of selectable tap points and a multiplexer havin... | 03/07/1989 |
| 4725876 | Semiconductor device having at least two resistors with high resistance values A semiconductor device comprising at least two pinch resistors or two ion-implanted resistors having a precise resistance ratio therebetween. The pinch resistor and ion-implanted resistor have at least one region contributing to the determination of a res... | 02/16/1988 |
| 4668932 | Nonvolatile reprogrammable electronic potentiometer A variable impedance circuit for use in an external circuit. The impedance value may be altered by an external circuit. The invention consists of a plurality of two terminal impedance elements connected in series. A node is provided between each pair of i... | 05/26/1987 |
| 4646056 | Matching of resistor sensitivities to process-induced variations in resistor widths A method is disclosed for matching the sensitivities of different-sized resistors to changes in resistance due to changes in width resulting from a systematic manufacturing error. In order to produce sets of resistors which can be deployed in predetermine... | 02/24/1987 |
| 4631512 | Voltage dividing resistor device A voltage dividing resistor device comprises a pair of electrode terminals applied with a voltage, a plurality of resistor bodies coupled between the pair of electrode terminals, an electrode terminal through which a divided voltage is obtained from an in... | 12/23/1986 |
| 4586019 | Matching of resistor sensitivities to process-induced variations in resistor widths A method is disclosed for matching the sensitivities of different-sized resistors to changes in resistance due to changes in width resulting from a systematic manufacturing error. In order to produce sets of resistors which can be deployed in predetermine... | 04/29/1986 |
| 4565000 | Matching of resistor sensitivities to process-induced variations in resistor widths A method is disclosed for matching the sensitivities of different-sized resistors to changes in resistance due to changes in width resulting from a systematic manufacturing error. In order to produce sets of resistors which can be deployed in predetermine... | 01/21/1986 |
| 3961302 | Variable resistance control A variable resistance control employs a substrate provided with a center aperture and a plurality of corner and intermediate locator means disposed about the periphery of the substrate. An adjusting; means constraining a contactor to rotate therewith is j... | 06/01/1976 |
