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4057707 |
Electric heating unit
An electrical cooking or heating unit comprising a plate of a glassy material inluding a selected portion thereof upon whose upper surface vessels are to be placed for cooking purposes. The lower...
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4050052 |
Electrical temperature measuring resistor structure, particularly for resistance thermometers
A substrate carrier of electrically non-conductive material has a strip of resistance platinum applied thereto; in order to avoid the use of an intermediate temperature coefficient of expansion...
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4042479 |
Thin film resistor and a method of producing the same
The present invention provides a new thin film resistor to be utilized as an electronic element, which consists of tantalum, aluminum and nitrogen. This new thin film resistor has a higher value of...
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4039997 |
Resistance material and resistor made therefrom
A vitreous enamel resistance material comprising a mixture of a vitreous glass frit and fine particles of a metal silicide of the transition elements of Groups IV, V and VI of the periodic chart....
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4038457 |
Fusible metal film resistor
A fusible metal film resistor comprising a substrate of an electrically insulating material and a resistive film formed on the substrate, which consists of nickel, 4 to 12 weight % of phosphorus...
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4038517 |
Environmentally and wear protected glass substrate thin film thermal printheads
Glass-substrate thin film thermal printheads are protected from both chemical contamination and the mechanical wear by a coating comprising aluminum oxide (Al 2 O 3 ) over silicon monoxide (SiO)...
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4036786 |
Fluorinated carbon composition and resistor utilizing same
A partially fluorinated acetylene black composition, represented by the empirical formula CF x wherein x has a value of from 0.01 to 0.04, is employed as the conductive component in a composite...
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4032751 |
Radiant heating panel
A plastic laminate form of heating panel incorporating a layer of a semiconductive carbonaceous pyropolymer, consisting of carbon and hydrogen on a high surface area refractory inorganic oxide...
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4031272 |
Hybrid integrated circuit including thick film resistors and thin film conductors and technique for fabrication thereof
A technique for the fabrication of hybrid integrated circuitry combining the expedients of thick and thin film technology is described. A novel processing sequence for attaining ohmic contact...
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4031353 |
Electric radiant heater
An improved radiant heater has a metal heating plate formed with at least one bulged portion surrounded by a flat transversely extending peripheral flange. Each of the bulged portions has a concave...
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4031497 |
Fusible resistor
A fusible resistor device is made up of an elongated resistor film, a portion of which is disposed on a film of an organic substance attached to a base plate. The organic film is adapted to be...
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4028657 |
Deposited layer type thermometric resistance structure
On an aluminum oxide or high-alumina ceramic substrate an intermediate layer of a rare earth, titanium or iron oxide or a mixture of such oxides is provided for matching the thermal expansion...
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4024761 |
Directional hot film anemometer transducer
A directional hot film anemometer transducer for sensing the speed and direction of a fluid velocity vector that describes the motion of the fluid in which the transducer is immersed. The...
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4021277 |
Method of forming thin film resistor
A process is disclosed for vacuum depositing by co-sputtering a thin film nickel-chromium resistor of metastable composition. Also disclosed is a resistor made by this process, which resistor...
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4020222 |
Thin film circuit
A thin film circuit consisting of a planar substrate of insulating material and a thin metal film formed from an alloy of aluminum with between 2 to 20 atom percent tantalum from which resistors...
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4017821 |
Circuit assembly as for a T-element
A circuit assembly as for an attenuation circuit is constructed upon a glass or ceramic substrate. T-element attenuators are formed on one face of the substrate by a film-circuit technique....
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4016525 |
Glass containing resistor having a sub-micron metal film termination
A cermet resistor employs film terminations of sub-micron thickness. The terminations contain particles of SiO 2 or MnO 2 that may be conveniently made by mixing such particles in a metal...
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4006278 |
Low temperature coefficient of resistivity cermet resistors
Cermet resistors based on ruthenium dioxide and in some instances iridium dioxide have been found to have unusually low Temperature Coefficients of Resistivity (TCR) when a particular glass frit...
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4001762 |
Thin film resistor
A thin film resistor is formed of polycrystalline silicon which contains 2 to 45 atomic percent of oxygen and wherein the resistivity of the polycrystalline silicon film varies as a function of the...
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3995249 |
Resistors
A precision electrical resistance network device comprising an electrically insulating substrate having at least two film electrical resistance elements supported thereon, the resistance elements...
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3992212 |
Electrical resistor inks
Electrical resistor inks comprising a mixture of at least one semi-conducting pyropolymeric inorganic refractory oxide material and a vehicle consisting of a binder such as a synthetic resin or a...
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3989917 |
Thermal printing head
A thermal print head produced by a multilayer process is disclosed. Six of the seven bar-segments of the figure "8" produced by resistive deposits are bounded on the outside by conductive deposits...
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3982218 |
Temperature sensing device and method
A temperature sensing device and a method of forming it is disclosed. A first film or coating of an adherent electro-conductive metallic oxide is applied over the exterior surface of a dielectric...
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3978316 |
Electrical heating unit
An electrical heating unit of the integral element type, comprising an electrical heating element indirectly bonded to a supporting beta quartz-zinc petalite glass-ceramic plate is described. A...
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3978315 |
Electrical heating units
An electrical heating unit of the integral element type, comprising an electrical heating element indirectly bonded to a supporting lithium aluminosilicate glass-ceramic plate, is described. The...
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3974360 |
Electrical heating unit incorporating protective PbTiO.sub.3 overglaze
An electrical heating unit of the integral element type, comprising a platinum film heating element bonded to a supporting ceramic plate, wherein the platinum film heating element is electrically...
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3973234 |
Precision type resistor
Improved forms of electric resistance elements or resistors may be made from semiconducting organic-refractory oxide fibers, as for example drawn alumina fibers which have been subjected to contact...
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3966578 |
Method of making thin film thermistor
A thin film thermistor and a method of making such a thermistor in which a composition of lead telluride plus 5% cerium is sputtered on to a polyimide film after which electrodes are deposited...
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3964087 |
Resistor network for integrated circuit
An electrical resistance package comprises: A. an insulative substrate, B. a network in film form on the substrate, the network including resistance branches, C. there being terminals on...
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3955039 |
Aluminum tantalum layers for electronic devices
Al-Ta alloy films containing 2 to 20 atomic % of Ta in Al exhibit an improved temperature stability. An Al-alloy film containing 7 atomic % of Ta has a resistivity of 60μΩ cm, a temperature...
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3949345 |
Multiple magnetoresistance element
A multiple magnetoresistance element includes a first stripe group and a second stripe group which comprise a plurality of stripes electrically connected in series with each other and spaced from...
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3949346 |
Magnetoresistive element
A magnetoresistive element comprising a substrate, a first conducting ferromagnetic film strip having current carrying ability predominantly in one direction, a second current carrying...
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3947801 |
Laser-trimmed resistor
A laser-trimmed film resistor wherein the laser kerf terminates in an area outside the electrical current path across the resistor. FIELD OF THE INVENTION This invention relates to film...
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3939381 |
Universal burn-in fixture
A universal burn-in fixture including a printed circuit board having a plurality of regularly spaced areas and with each area receiving a semiconductor socket and with the socket having lead...
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4007352 |
Thin film thermal print head
After the mesas are formed in the glass glaze over an aluminum oxide substrate by etching, and before resistive and conductive materials are deposited over the mesas by thin film techniques, an...
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3928837 |
Ceramic oxide resistor element
A ceramic oxide thermistor having a negative temperature coefficient at elevated temperatures comprising about 30% to 100% Fe 2 O 3 and 0% to 70% Al 2 O 3 . It preferably also contains MnO. The...
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3924221 |
Film resistor and method
Inexpensive resistor compositions which yield, upon firing, resistors having low TCR values. A temporary binder and finely divided particles of MoO 3 , a reducing agent and a glass containing PbO...
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3922388 |
Method of making an encapsulated thick film resistor and associated encapsulated conductors for use in an electrical circuit
A method of making an encapsulated thick film resistor and an associated encapsulated conductor so that the stability of the resistor will be maintained at a precise level over an abnormally long...
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3905097 |
Method of making plural potentiometer body
A plural potentiometer in which independently and infinitely variable potentiometers are included in a common housing where for each potentiometer a resistive strip is applied to the inside of the...
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3904461 |
Method of manufacturing solderable thin film microcircuit with stabilized resistive films
A metalization process for the manufacture of hybrid integrated circuit elements including boards and semiconductors to be attached thereto involves applying to a substrate of insulating material...
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3900634 |
Glazing panel with conductive strips
An electrically heatable transparent glazing panel composed of a transparent glass substrate is provided with at least one electrically conductive coating strip by applying onto the substrate a...
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3898607 |
High value vertical resistors by ion implantation and method for making same
A vertical resistor is described comprising aluminum, a high atomic number metal such as tungsten and implanted oxygen ions to adjust the resistivity of the aluminum to the desired level of...
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3898427 |
Flexible warming structure
A transparent flexible warming structure particularly useful as a medical accessory such as an incubator or other individual patient warming structure is described herein. The structure comprises a...
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3896284 |
Thin-film microelectronic resistors
The present invention relates to a number of layers of resistive materials superimposed upon an area of the substrate, the material of highest resistivity being deposited first, and therefore at...
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3889223 |
Resistor trimming technique
A printed circuit resistor pattern, designed to be trimmed by electro-erosion, has affixed to the side thereof a highly conductive strip. The current path passes through a portion of the resistor...
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3878079 |
Method of producing thin tantalum films
Thin films of tantalum in the α phase body-centered cubic lattice are produced by heating a substrate to a temperature above 300° C. and applying a high frequency discharge to a tantalum target...
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3876560 |
THICK FILM RESISTOR MATERIAL OF RUTHENIUM OR IRIDIUM, GOLD OR PLATINUM AND RHODIUM
A composition for use in thick film resistive elements having a low temperature coefficient of resistance is prepared by codepositing from an aqueous solution at least two precious metals one of...
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3872419 |
ELECTRICAL ELEMENTS OPERABLE AS THERMISTERS, VARISTERS, SMOKE AND MOISTURE DETECTORS, AND METHODS FOR MAKING THE SAME
Electrical elements comprising a metal substrate, a ceramic semiconductor applied thereon and an outer conductive coating. The metal substrate may be a ferrous metal, preferably stainless steel,...
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3864825 |
Method of making thin-film microelectronic resistors
The present disclosure relates to a number of layers of resistive materials superimposed upon an area of the substrate, the material of highest resistivity being deposited first, and therefore at...
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3856979 |
SEMICONDUCTING COATING FOR ELECTRICAL GLASS CONDUITS
Disclosed is a tubular glass conduit for loosely containing and electrically insulating an electrical power conductor in an underground power transmission network in both alternating and direct...
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