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7268659 |
Micro electric power converter
A thin film magnetic induction element includes a ferrite substrate, a coil provided across the ferrite substrate and including connection conductors and coil conductors, and terminals provided on...
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7268409 |
Spiral inductor with electrically controllable resistivity of silicon substrate layer
A microelectronic device including, in one embodiment, a plurality of active devices located at least partially in a substrate, at least one dielectric layer located over the plurality of active...
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7266882 |
Method of manufacturing a miniaturized three- dimensional electric component
Manufacturing of miniaturized three-dimensional electric components are presented, as well as components manufactured by the methods. The manufacturing methods comprise micro-replication of at...
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7262680 |
Compact inductor with stacked via magnetic cores for integrated circuits
An on-chip inductor device for Integrated Circuits utilizes coils on a plurality of metal layers of the IC with electrical connectors between the coils and a magnetic core for the inductor of...
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7262681 |
Integrated semiconductor inductor and method therefor
In one embodiment, a multi-layer inductor is formed overlying a semiconductor substrate.
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7259648 |
Multiple choke coil and electronic equipment using the same
The invention is comprised of a coil group arranging a plurality of terminal-integrated type coils ( 1 ), ( 4 ) formed by bending a metal sheet in a preset development form and having a...
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7260229 |
Position sensor for a loudspeaker
The invention relates to an improved electro-dynamic loudspeaker. The electro-dynamic loudspeaker comprises (a) a voice coil for generating an acoustic waveform, the voice coil being longitudinally...
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7259649 |
Switchable inductance
A switchable inductance that can be formed in an integrated circuit, including a spiral interrupted between two first points connected to two terminals via two metallizations running one above the...
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7257882 |
Multilayer coil assembly and method of production
Embodiments of the present invention provide a thin-film coil assembly. The coil assembly includes a substrate, at least two layers of conductive material on top of the substrate, and one layer of...
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7256673 |
Coil assembly including common-mode choke coil
A coil assembly for reducing variations in characteristic impedance includes a winding section having a first surface and a second surface on the opposite side of the winding section from the first...
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7256676 |
Printed circuit board and device including same
A multi-layer printed circuit board. The multi-layer printed circuit board includes a first winding, and a first via connected to the first winding. The first winding includes a first edge. The...
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7253713 |
Common-mode choke coil
A common-mode choke coil has first and second coil parts, a first inductance part, and a second inductance part. The first coil part and the second coil part are magnetically coupled to each other....
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7253712 |
Integrated high frequency balanced-to-unbalanced transformers
Integrated high frequency balanced-to-unbalanced transformers suitable for operation in high frequencies, such as radio frequencies. Embodiments disclosed give consideration to issues related to...
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7253711 |
Embedded toroidal inductors
A method for making an embedded toroidal inductor ( 118 ) includes forming in a ceramic substrate ( 100 ) a first plurality of conductive vias ( 102 ) radially spaced a first distance from a...
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7250842 |
MEMS inductor with very low resistance
A very, very low resistance micro-electromechanical system (MEMS) inductor, which provides resistance in the single-digit milliohm range, is formed by utilizing a single thick wide loop of metal...
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7250841 |
Saucer-shaped half-loop MEMS inductor with very low resistance
A micro-electromechanical system (MEMS) inductor is formed in a saucer shape that completely surrounds a magnetic core structure which is formed from a ferromagnetic material. In addition, an array...
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7249436 |
Electric shock bird and animal deterrent
An animal and bird deterrent apparatus is disclosed. The apparatus includes a flexible dielectric material, and electrically conducting strips disposed on a top surface of the flexible material. In...
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7248480 |
Semiconductor element, manufacturing method thereof, and high frequency integrated circuit using the semiconductor element
A semiconductor element comprises a capacitance variable section and an inductor section. In the capacitance variable section, a variable capacitance diode equipped with first and second control...
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7248138 |
Multi-layer printed circuit board inductor winding with added metal foil layers
The present invention provides an electromagnetic component formed from adjacent conducting layers of a multi-layer PCB and two additional conducting layers in contact with the PCB. The inventive...
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7247922 |
Inductor energy loss reduction techniques
An inductive device including an inductor coil located over a substrate, at least one electrically insulating layer interposing the inductor coil and the substrate, and a plurality of current...
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7242274 |
Inductor layout using step symmetry for inductors
A differential circuit layout can advantageously use step symmetry for inductors and mirror symmetry for the rest of the circuit. Interconnect segments can be used to connect the terminals of the...
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7236080 |
On-chip high Q inductor
A high-Q on-chip inductor includes a primary winding and an auxiliary winding. The primary winding includes a first node and a second node. The auxiliary winding is operably coupled to increase a...
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7234229 |
Method and apparatus for manufacturing motor coil
The present invention provides a process and an apparatus for the preparation of a motor coil by which a longitudinally wound motor coil, so called, can be easily prepared. First, a molded product ...
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7233225 |
Planar type ferrite core
A planar type ferrite core having a rectangular shaped flat part, a pair of outside legs projecting out from two ends of the flat part in a direction substantially perpendicular to a plane of the...
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7227441 |
Precision Rogowski coil and method for manufacturing same
An improved Rogowski coil is formed on a toroidal core made of a thermoplastic or other moldable material, the core having a preferably continuous groove or grooves extending around the core. The...
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7221251 |
Air core inductive element on printed circuit board for use in switching power conversion circuitries
A low cost, low EMI air core inductor fabricated on printed circuit board for power conversion circuits is described. The inductive element combines the advantages of high efficiency and minimum...
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7216419 |
Method of manufacturing a high-frequency coil device
In a high-frequency coil device having small dispersion in coil inductance and suitable for use in GHz band and a method of manufacturing the high-frequency coil device, a spirally-shaped...
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7215217 |
Marchand-type distributed balun
A mode-switching transformer including a first conductive line between two common-mode access terminals and a second conductive line between two differential mode access terminals, the lines being...
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7212094 |
Inductive components and electronic devices using the same
An inductive component in which a large enough inductance is obtainable even when the size is made smaller and the profile is made lower and electronic devices using the inductive component are...
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7212095 |
Inductive element and manufacturing method of the same
Conductor layers 2 A and insulating layers 4 A are alternately stacked so as to prepare a base material 17 . A plurality of grooves 18 having a predetermined width are formed in a surface of...
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7210223 |
Method of manufacturing a microcoil construction
A microcoil is manufactured by rolling a trace unit in such a way as to form at least one winding. The trace unit is comprised of a conductive trace attached to a flexible insulating film. A...
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7207096 |
Method of manufacturing high performance copper inductors with bond pads
A method for manufacturing high performance copper inductors includes providing a tall, Cu laminate spiral inductor is formed at the last metal level, and at the last metal +1 level, with the metal...
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7209026 |
Integrated package inductor for integrated circuit devices
Provided are methods and devices in which an inductor is embedded in a package adapted to carry an integrated circuit and a magnetically permeable material is also embedded in the package so that...
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7209025 |
Multilayer inductor with shielding plane
Some embodiments provide a first portion of an inductor disposed in a first layer of a multilayer substrate, a second portion of the inductor disposed in a second layer of the multilayer substrate,...
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7205650 |
Composite devices of laminate type and processes
In a composite device of the laminate type having a laminate structure of a composite ceramic layer and a dielectric ceramic layer, the composite ceramic layer including a layer portion having the...
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7205876 |
Inductor for radio frequency integrated circuit
An inductor used in a radio frequency integrated circuit is disclosed. The inductor includes a plurality of unit inductors each having a vertical spiral structure, wherein a vertical cross-section...
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7199682 |
Distributed balun with a non-unity impedance ratio
A mode-switching transformer having a first conductive line formed of two primary windings electrically in series, and the length of which is a function of a central operating frequency of the...
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7199693 |
Choke coil and electronic device using the same
The choke coil disclosed comprises: coils incorporated with terminals and intermediate taps manufactured of die cut metal plates; and a magnetic powder in which the coils are embedded.
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7199694 |
Isolated dual-channel transformer
An isolated dual-channel transformer is provided, which comprises: a bobbin with a primary coil-winding portion and two secondary coil-winding portions, for coiling a winding; an insulating cover...
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7196608 |
Wire-wound type chip coil and method of adjusting a characteristic thereof
A wire-wound type chip coil can take various inductance values while maintaining its outer dimension at a specific fixed value. A chip coil is formed by winding at least two conductive wires...
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7196607 |
Embedded toroidal transformers in ceramic substrates
Method for forming a transformer ( 118 ) in a ceramic substrate. The method can include the steps of forming at least one conductive coil ( 119 a , 119 b ) comprising a plurality of turns about an...
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7194799 |
Process for fabricating a high density multi-layer microcoil
A high density multi-layer microcoil includes a substrate, a multi-layer coil winding, a magnetic core and a dry film photoresist structure. The multi-layer coil winding and the magnetic core are...
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7187263 |
Printed circuit transformer
A circuit board has apertures. Separate magnetic flux paths each form a closed loop that passes through at least one of the apertures and surrounds an interior space. The flux paths comprising...
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7183888 |
High-frequency circuit
A high-frequency circuit is formed on a multilayered dielectric substrate having at least two conductive circuit layers. The high-frequency circuit includes: a first spiral conductive strip formed...
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7180397 |
Printed wiring board having edge plating interconnects
The present invention provides a PWB for attaching electrical components thereto. The PWB includes a stack of insulating layers, conductive layers located between the insulating layers, wherein the...
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7176776 |
Multi-layer RF filter and balun
A filter-balun combination for filtering an RF input signal and balancing output RF signals is provided. The filter-balun combination is formed in a multi-layer planar substrate having multiple...
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7176775 |
Transformer and discharge lamp lighting device
A transformer and discharge lamp lighting device are disclosed. The transformer includes a closed-magnetic circuit type of core having a gap, a primary winding 7 p , a secondary winding 7 s and...
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7176772 |
Multilayer coil component and its manufacturing method
A laminated coil component includes a coil conductor including a plurality of strip electrodes and via-holes inside an approximately rectangular ceramic laminate. The via-holes connect the ends of...
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7176773 |
High density inductor and method for producing same
A method for producing a high density inductor includes the steps of forming a coil having a spiral shape, sealing the coil in the interior of a core member, and forming a terminal electrode for...
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7171739 |
Method of manufacturing an on-chip transformer balun
A method of manufacturing an on-chip transformer balun includes creating, on a semiconductor substrate, a primary winding having at least one substantially symmetrical primary turn on a first...
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