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Class 29/610.1 - Resistor making


Subclass of Class 29 - Metal working
Definition: Process for making an electrical resistor and including
No. of patents: 369
Last issue date: 05/10/2011


1                    
NumberTitleIssue Date
7937825Method of forming a surge protector
A surge protector coated with an oxide layer having an excellent chemical stability at the high temperature range and excellent adherence with respect to main discharge electrodes. The surge protector includes a column-shaped ceramic member that has a conductive fil...
05/10/2011
7918015Method for making a thin film resistor
A process for making a fluid ejector head for a micro-fluid ejection device. In one embodiment, the process comprises depositing a thin film resistive layer on a substrate to provide a plurality of thin film heaters. The thin film resistive layer comprises a tantalu...
04/05/2011
7788799Linear resilient material variable resistor
A variable resistance device comprises a resistive member having a resistive resilient material. A first conductor is configured to be electrically coupled with the resistive member at a first contact location over a first contact area. A second conductor is configu...
09/07/2010
7743488Manufacturing method for variable resistive element
In the case where a variable resistive element, which is made of a variable resistor provided between a first and second electrodes, and of which the electrical resistance varies by applying a voltage pulse between the two electrodes, is applied to a resistance nonv...
06/29/2010
7721417Manufacturing method for semiconductor device having a thin film resistor
A method of evaluating laser trimming of a semiconductor device having a thin film resistor is disclosed. The method includes the steps of providing the thin film resistor and laser trimming the thin film resistor by creating a first trim cut. The first trim cut bis...
05/25/2010
7669313Method for fabricating a thin film resistor semiconductor structure
A method is provided of fabricating a thin film resistor semiconductor structure. In one aspect of the invention, the method includes forming a dielectric layer over a semiconductor substrate, forming a thin film resistor on the dielectric layer, and annealing the t...
03/02/2010
7617591Method for fabricating embedded thin film resistors of printed 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...
11/17/2009
7555829Method for adjusting an output parameter of a circuit
Electro-thermal trimming of thermally-trimmable resistors is used to trim one or more of the plurality of resistors in or associated with an analog electric circuit. The TCR of each of a subset of a plurality of electro-thermally-trimmable resistors can be trimmed i...
07/07/2009
7552525Method for the production of a circuit board element
A circuit board element (11) and production thereof are disclosed, whereby a noble metal (16) is applied to a structured conductor layer (13) on a circuit board substrate (12), comprising said conductor layer (13). The conductor la...
06/30/2009
7442318Method of making thermal print head
A method of manufacturing a thermal print head includes a conductor layer formation step, a first measurement step, a conductor layer splitting step and a second measurement step. In the conductor layer formation step, a single conductor layer including first and se...
10/28/2008
7441322Method of manufacturing a magnetic detection apparatus
A magnetic detection apparatus can be improved in its product yield. The magnetic detection apparatus includes a resin compact having a the magnet arranged in opposition to an object to be detected for generating a magnetic field, an IC chip with a magnetic detectio...
10/28/2008
7439845Temperature sensor for a resistance thermometer, in particular for use in the exhaust gas system of combustion engines
The invention describes a temperature sensor for a, resistance thermometer having an electric measuring resistor the resistance material of which consists either of a ceramic material or of a metallic resistance material in combination with a ceramic or a mineral ca...
10/21/2008
7380333Chip resistor fabrication method
A method of making a chip resistor is provided. The method includes the following steps. First, a resistive element is provided on a substrate. Then, a resin layer is formed on the substrate to enclose the resistive element. Then, the substrate and the resin layer a...
06/03/2008
7367114Method for plasma etching to manufacture electrical devices having circuit protection
Methods of manufacturing a variety of circuit protection devices are provided as well as devices so manufactured. In an embodiment, a surface mount electrical device having a substrate and a pair of conductive electrodes connected to an electrical protection compone...
05/06/2008
7363701Method of making a heat pipe
An encapsulated heat pipe is made by placing a removable elongated solid partially within a mold, filling the mold with a solid dielectric material, and removing the elongated solid from the dielectric material defining an elongated cavity that extends within the so...
04/29/2008
7364993Method of enhancing the photoconductive properties of a semiconductor
A semiconductor material with photoconductive properties and a method of the semiconductor, wherein a base material is grown and then annealed post-growth at a temperature of 475° C. or less. It has been found that be annealing at temperatures of 475° C., or less ...
04/29/2008
7357035Sensor chip and apparatus for tactile and/or flow sensing
A sensor chip, comprising a flexible, polymer-based substrate, and at least one microfabricated sensor disposed on the substrate and including a conductive element. The at least one sensor comprises at least one of a tactile sensor and a flow sensor. Other embodimen...
04/15/2008
7355504Electrical devices
An electrical device which comprises first and second laminar electrodes and a laminar PTC resistive element sandwiched between them, the device comprising (a) a main portion which comprises a main part of the first electrode, a ma...
04/08/2008
7350296Method of fabricating a printed circuit board including an embedded passive component
Disclosed is a method of fabricating a PCB including an embedded passive component and a method of fabricating the same and a method of fabricating the same. The PCB includes at least two circuit layers in which circuit patterns are formed. At least one insulating l...
04/01/2008
7343671Process for manufacturing a composite polymeric circuit protection device
A process for manufacturing a composite polymeric circuit protection device in which a polymeric assembly is provided and is then subdivided into individual devices. The assembly is made by providing first and second laminates, each of which includes a laminar polym...
03/18/2008
7334326Method for making an integrated circuit substrate having embedded passive components
A method for making an integrated circuit substrate having embedded passive components provides a reduced cost and compact package for a die and one or more passive components. An insulating layer of the substrate is embossed or laser-ablated to generate apertures f...
02/26/2008
7329831Laser trimming of resistors
Improved systems and methods for laser trimming resistors printed on a substrate layer are provided. An exemplary embodiment measures a resistance value for each annular resistor and sorts the annular resistors into one or more bins based on the measured resistance ...
02/12/2008
7327951Instant water heater with PTC plastic conductive electrodes
An instant water heater utilizing positive temperature coefficient plastic electrically conductive material structures for electrodes. The heating of the water is not generated by the electrodes, but instead by the resistance of the water to the electrical current f...
02/05/2008
7327214Chip resistor and method of making the same
A chip resistor includes a metal resistor element having a flat lower surface. The lower surface is formed with two electrodes spaced from each other, and an insulating resin film is formed between these electrodes. Each of the electrodes partially overlaps the insu...
02/05/2008
7326624Method of making thin-film chip resistor
A method of making a thin-film chip resistor includes: a step of making a material plate A formed with lengthwise breaking grooves A1 and crosswise breaking grooves A2 along which the plate is to be divided into individual chip substrates 1 each...
02/05/2008
7318844Laser-irradiated metallized electroceramic
The manufacturing method for an electroceramic component (1), for example a varistor (1), comprises a laser irradiation of a part (5; 6) of the surface of an electroceramic body (2) before a metallization (3; 4) is applied to the p...
01/15/2008
7306822Products comprising nano-precision engineered electronic components
Electronic devices prepared from nanoscale powders are described. Methods for utilizing nanoscale powders and related nanotechnology to prepare capacitors, inductors, resistors, thermistors, varistors, filters, arrays, interconnects, optical components, batteries, f...
12/11/2007
7305754Method 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
7300620Method for manufacturing varistor
The raw material for a ZnO—Pr-based varistor is mixed with cobalt and potassium to prepare a ceramic raw material powder. Potassium, which is an alkali metal, is added in the form of KClO4, KHC4H4O6, PtCl6, or...
11/27/2007
7290324Method for fabricating a magnetic head including a media heating element
A magnetic head including a media heating device. Following the fabrication of the heating device, a sacrificial layer of material is deposited to protect the heating device during subsequent process steps. Thereafter, write head components, such as write head induc...
11/06/2007
7284317Method of producing printed circuit board with embedded resistor
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, there...
10/23/2007
7281318Method of manufacturing a composite structural member having an integrated electrical circuit
A method of manufacturing a composite structural member with an integrated electrical circuit is provided. The structural member includes a plurality of layers of structural reinforcement material, and two or more electrical devices are disposed at least partially b...
10/16/2007
7278201Method 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
7278202Method for making overlay surface mount resistor
A surface mount resistor includes an elongated piece of resistive material having strips of conductive material attached to its opposite ends. The strips of conductive material are separated to create an exposed central portion of the resistive material therebetween...
10/09/2007
7271699Changing an electrical resistance of a resistor
A resistor and a structure for changing an electrical resistance of a resistor. Initially, the resistor is provided, wherein the resistor has a length L and an electrical resistance R1. A portion of the resistor is exposed to a laser radiation, wherein th...
09/18/2007
7263764Method for adjusting performance characteristics of a multilayer component
A method for adjusting the equivalent series resistance (ESR) of a multi-layer component includes providing at least first and second layers separated by an insulating layer, providing a resistive layer between the inslulating layer and one of the first or second el...
09/04/2007
7249409Method for trimming resistors
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 circ...
07/31/2007
7237324Method for manufacturing chip resistor
A multiple chip resistor is manufactured in the following method. First electrode layers are formed on a first surface of a substrate. Resistor elements electrically connected to the first electrode layers, respectively, are formed on the first surface of the substr...
07/03/2007
7221254Chip resistor having low resistance and method of making the same
A resistor, including a resistive element made of a metal plate, has a low resistance resulting from connection terminal electrodes formed on both ends of the lower surface of the resistive element. The object thereof is to achieve weight reduction and lower costs b...
05/22/2007
7213327Method for fabricating embedded thin film resistors of printed 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...
05/08/2007
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