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5243318 |
Low noise precision resistor
A low noise miniature potentiometer utilizes thick film deposits of resistive material which extend adjacent to deposits of conductive material. The conductive region is sliced into a plurality of...
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5235154 |
Laser removal of metal interconnects
Disbonded two-level (bimetal) metal interconnections are removed by first vaporizing metal in the lower level that is exposed by the narrower metal on the upper level using a pulsed laser beam...
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5232766 |
Hybrid substrate
A hybrid substrate comprises an aluminum-based ceramic base substrate and a silicon layer provided on the base substrate.
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5233327 |
Active resistor trimming by differential annealing
A process of fabricating an electrical resistor and a product produced thereby in which trimming of a resistive element of a material exhibiting thermosetting properties is accomplished by in-situ...
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5214407 |
High performance current shunt
A current shunt for converting a current to a voltage. The current shunt of the invention is made from a conductive material such as a high performance resistance alloy in sheet form which is...
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5206623 |
Electrical resistors and methods of making same
An electrical resistor which is fabricated from traces of resistive material on a substrate of insulating material. The traces are interconnected electrically in series by first links and in...
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5206624 |
Intermediate product for use in the production of thick-film circuits
An intermediate product is provided and includes a substrate having at least one thick-film circuit formed thereon. An outer surface of a first portion of the thick-film circuit is coated with a...
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5204799 |
Protective arrangement for telecommunications line interface circuit
A circuit protection device designed to protect a pair of electrical circuits by fracturing at such time as an overcurrent condition has occurred in a first of the circuits, this novel device...
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5198794 |
Trimmed resistor
A trimmed resistor is provided which has no directional feature when used and is easily mounted on a printed base board. In the trimmed resistor, there are formed four external electrodes arranged...
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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...
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5184108 |
Conductive corners for surge survival
Conductive material is applied to a resistor to provide controlled shunting of current from localized regions of the resistor that would otherwise destructively fail during surge. Various...
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5162635 |
Heater
A heater comprises a substrate and an electrically conductive heating section having branched portions on its lateral edge. The heating section has notches at those portions of its lateral edges...
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5159524 |
Laser trimable capacitor
A capacitor which includes a dielectric layer, a metal electrode and a capacity adjusting electrode erodable by exposure to light energy, the capacity adjusting electrode being a film made of at...
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5153408 |
Method and structure for repairing electrical lines
The present invention relates generally to a new method of repairing electrical lines, and more praticularly to repairing electrical lines having an open at the module level with devices in place....
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5148143 |
Precision thick film elements
A precision thick film resistor has a deposited thick film conducting layer which is adjacent to and in contact with a deposited thick film resistive layer. A laser scribed line, having a width on...
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5140107 |
Digitizer screen and method of making
A digitizer screen and method of making. A coated conductive plastic film is perforated and is used in conjunction with a glass or other panel to provide a screen which may be used in an electronic...
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5128522 |
Resistance heater for a carryout pizza package or other food items
An improved heaterboard, and method and apparatus for producing same is disclosed herein. A foil layer is bonded to a paperboard substrate and a circuit path is cut in the foil layer to define a...
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5126716 |
Artificial resistive card
An artificial resistive card which prevents scattering due to diffraction, and which forms impedance transitions from ground planes to antenna apertures or to free spaces, incorporates resistive...
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5122620 |
Chip carrier with terminating resistive elements
A generic chip carrier is described which includes, as integral parts, a voltage bus and a plurality of terminating resistors connected between the voltage bus and signal traces on the carrier. The...
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5081439 |
Thin film resistor and method for producing same
A planar film resistor is trimmable by a laser beam. A pair of electrodes are spaced apart on a substrate and make contact with a film of resistive material disposed therebetween. The resistive...
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5065221 |
Trimming resistor element for microelectronic circuit
A trimming resistor element includes a high-resistance film of high resistivity formed on an insulation film on the main surface of a substrate, and a low-resistance region which is formed by...
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5057964 |
Surge protector for telecommunications terminals
A surge protector, particularly for protecting components in a telecommunication system, has a thin ceramic substrate on a surface of which is formed a surge protector resistor having a spiral...
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5051719 |
Thick-film non-step resistor with accurate resistance characteristic
A smooth resistance characteristic, a reduction in component cost, and high durability are achieved for a variable resistor card formed using thick-film silk screen deposition. An arcuate wiper...
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5043694 |
Resistance element and method for trimming resistance element
A resistance element includes a resistance film formed between a pair of electrodes. A trimming groove is formed in the resistance film by means of a laser beam, whereby a resistance film portion...
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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...
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5015989 |
Film resistor with enhanced trimming characteristics
A film resistor for use in electrical circuits, the resistor including a shunt conductor electrically connected in parallel with a portion of the resistive film, at a location spaced apart from the...
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4999731 |
Surge protector for telecommunications systems
A surge protector, particularly for protecting components in a telecommunications system, has a thin ceramic substrate on a surface of which is formed a surge protection resistor having a...
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4929923 |
Thin film resistors and method of trimming
A resistor having a first portion of a high resistivity material and a second portion of a low resistivity material and laser trimming the low resistivity material portion.
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4924067 |
Temperature controlled soldering resistor to change the set temperature
An accurate, setting-protected, temperature controlled soldering iron has a control circuit including a non-adjustable replaceable resistor mounted near the junction of the handle and the tube...
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4920635 |
A method of manufacturing a thermo-sensitive resistor
A thermo-sensitive resistor including an electrically insulating substrate, a thin-film heating resistor formed on the substrate and lead wires electrically connected to the thin-film heating...
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4906966 |
Trimming resistor network
A trimming resistor network includes first and second external connection terminals, a first resistor having two ends acting as first and second connection terminals, a first coupling body for...
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4862136 |
Programmable resistance network
A programmable resistor network and a method for forming and programming same. The network includes a plurality of independent programmable resistor arrays in a standard DIP semiconductor package....
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4859981 |
Electrical resistor device
The present device is an electrical resistor component which includes a cylindrical substrate of non-electrical conducting material. A meandering path (strongly resembling a plurality of hairpins...
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4840494 |
Calibrated temperature sensor and method of calibrating same
A process of calibrating a temperature sensor includes bringing the sensor to thermal equilibrium at a selected temperature, measuring the resistance of the sensor, calculating which combination of...
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4841275 |
Thick-film integrated circuit device capable of being manufactured by means of easy-to-perform trimming operation
A thick-film integrated circuit device comprises an insulating substrate, first and second conductors, formed on the insulating substrate by means of a thick-film forming method and spaced apart...
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4812419 |
Via connection with thin resistivity layer
A via connection and method for making the same for integrated circuits having multiple layers of electrically conductive interconnect lines separated by an insulative layer. The via connection is...
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4792779 |
Trimming passive components buried in multilayer structures
A technique is disclosed for trimming resistors and other passive circuit components buried in hybrid multilayer circuit structures. For example, resistors (13) are formed between two dielectric...
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4788524 |
Thick film material system
A material system for manufacturing thick film resistors on a ceramic dielectric substrate is disclosed. The system includes the application and fixing of resistor terminations composed of a...
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4785157 |
Method for controlling electric resistance of a compound-type resistors
A method for controlling electric resistance of a compound-type resistant material is disclosed in which a laser beam is irradiated on a compound-type resistant material so as to cause a change in...
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4777826 |
Twin film strain gauge system
A strain gauge sensor for providing an electrical output responsive to a parameter applied to a substrate. A homogenous thin film circuit is deposited on an insulating layer which is deposited on a...
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4777471 |
Apparatus for multiple link trimming in precision integrated circuits
An improved circuit, and an improved device geometry for trimming element values in an integrated circuit employs selectable short-circuiting of fusible elements by means of application of a...
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4774492 |
Slotted integrated circuit resistor
A distributed wye resistor network fabricated on an integrated circuit substrate includes a resistive body coupled between two terminal elements. The resistive body includes a plurality of slots...
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4772774 |
Laser trimming of electrical components
A method of laser trimming an electronic component to achieve a desired electronic characteristic including entering into a controller the desired value of the characteristic of the component being...
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4725925 |
Circuit board
A circuit board including resistors on one surface of a board or substrate having through hole conductors arranged in a lattice like fashion. At least one electrode is formed on a surface of the...
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4714911 |
Technique for treating manufactured thick film resistors
A technique for treating a thick film resistor subsequent to manufacture to correct its value and at the same time enhance its electrical characteristics, such as its resistance stability. Use is...
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4703253 |
Probe for monitoring the corrosion of a steel reinforcement member in a concrete body
Probe for monitoring the corrosion of a metallic reinforcement member in a concrete body. Two elements (11,12) of a rodshaped material, preferably in one piece of a material identical to that of...
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4688434 |
Method for adjusting a resistance-gage force transducer and an adjusted force transducer thus obtained
A force transducer comprises a resilient bar (1) which carries a measuring bridge formed by resistance gages (R 1 , . . . R 4 ). One end of the bar is attached to a stationary support (2) and the...
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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...
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4670734 |
Method of making a compact, high-voltage, noninductive, film-type resistor
A method of making a high-voltage, noninductive, film-type resistor by providing on an insulating substrate a coating of resistive material. A laser beam is then operated to cut through the coating...
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4665377 |
Method of adjusting the values of resistors
A method of adjusting the values of resistors is described wherein regions of a resistive layer provided on a substrate are removed by means of a laser in dependence on the resistance that is...
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