208results about How to "Improve electricity" patented technology

A semiconductor light emitting element of nitride compound semiconductors excellent in cleavability, heat radiation and resistance to leakage is made by epitaxially grow a nitride compound semiconductor layers on a substrate of sapphire, for example, and thereafter separating the substrate. For separating the substrate, there are a technique using a abruption mechanism susceptible to a stress such as a "lift-off layer" and a recesses on a substrate. A technique using laser light to cause a local dense heat stress at the abruption mechanism is effective. A nitride compound semiconductor obtained by separating the substrate may be used as a new substrate to epitaxially grow high-quality nitride compound semiconductors thereon.

The present invention is directed to nanowire structures and interconnected nanowire networks comprising such structures, as well as methods for their production. The nanowire structures comprise a nanowire core, a carbon-based layer, and in additional embodiments, carbon-based structures such as nanographitic plates consisting of graphenes formed on the nanowire cores, interconnecting the nanowire structures in the networks. The networks are porous structures that can be formed into membranes or particles. The nanowire structures and the networks formed using them are useful in catalyst and electrode applications, including fuel cells, as well as field emission devices, support substrates and chromatographic applications.

Provided is a transparent electrode including a graphene sheet. A transparent electrode having high conductivity, low sheet resistance, and low surface roughness can be prepared by employing the graphene sheet.

Electrically, mechanically, and thermally enhanced ball grid array (BGA) packages are described. A substrate has a surface, wherein the surface has an opening therein. A stiffener has a surface coupled to the surface of the substrate. An area of the surface of the stiffener can be greater than, equal to, or less than an area of the surface of the substrate. A thermal connector is coupled to the surface of the stiffener through the opening. A surface of the thermal connector is capable of attachment to a printed circuit board (PCB) when the BGA package is mounted to the PCB. The thermal connector can have a height such that the thermal connector extends into a cavity formed in a surface of the PCB when the BGA package is mounted to the PCB. Alternatively, the stiffener and thermal connector may be combined into a single piece stiffener, wherein the stiffener has a protruding portion. The protruding portion extends through the opening when the stiffener is coupled to the substrate, and is capable of attachment to the PCB.

The present invention includes a high performance communications cable exhibiting reduced cross-talk between transmission media that includes one or more core support-separators having various shaped profiles which define a clearance to maintain a spacing between transmission media or transmission media pairs. The core may be formed of a conductive or insulative material to further reduce cross-talk. The central core region may include a hollow opening or duct for blown fiber (ABF). A method of producing this cable introduces a core support-separator as described above into a cable assembly. The specially shaped core support-separator can be either interior to the cable jacket or be employed singularly without the benefit of a jacket and extends along the longitudinal length of the communications cable. Alternatively, with no jacket for cable completion, a portion of the separator wherein a thin layer of material can act as a type of skin for future mechanical protection may exist. The specially shaped core support-separator has a central region that is either solid, partially solid, foamed, with a solid skin over the foam or hollow itself. The cable may include a plurality of shaped sections that extend outward from the central region along the length of the central region. Each of the adjacent specially shaped sections defines a distinct clearance channel that extends along the longitudinal length of the core support-separator. Each of the defined clearance channels allow for disposal therein of conductors and/or optical fibers.

A semiconductor device includes a substrate comprising a first surface having a first orientation and a second surface having a second orientation and a plurality of III-V nitride layers on the substrate, wherein the plurality of III-V nitride layers are configured to emit light when an electric current is produced in one or more of the plurality of III-V nitride layers.

The present invention involves fibers of highly aligned single-wall carbon nanotubes and a process for making the same. The present invention provides a method for effectively dispersing single-wall carbon nanotubes. The process for dispersing the single-wall carbon nanotubes comprises mixing single-wall carbon nanotubes with 100% sulfuric acid or a superacid, heating and stirring under an inert, oxygen-free environment. The single-wall carbon nanotube/acid mixture is wet spun into a coagulant to form the single-wall carbon nanotube fibers. The fibers are recovered, washed and dried. The single-wall carbon nanotubes were highly aligned in the fibers, as determined by Raman spectroscopy analysis.

A semiconductor device includes a substrate comprising a first surface having a first orientation and a second surface having a second orientation and a plurality of III-V nitride layers on the substrate, wherein the plurality of III-V nitride layers are configured to emit light when an electric current is produced in one or more of the plurality of III-V nitride layers.

The present invention generally relates to methods and apparatus for the synthesis or preparation of boron-doped single-walled carbon nanotubes (B-SWCNTs). The invention provides a high yield, single step method for producing large quantities of continuous macroscopic carbon fiber from single-wall carbon nanotubes using inexpensive carbon feedstocks wherein the carbon nanotubes are produced by in situ boron substitutional doping. In one embodiment, the nanotubes disclosed are used, singularly or in multiples, in power transmission cables, in solar cells, in batteries, as antennas, as molecular electronics, as probes and manipulators, and in composites. It is another object of this invention to provide macroscopic carbon fiber made by such a method.

Disclosed herein is a composite comprising an elastomer with an embedded network of liquid metal inclusions. The composite retains similar flexibility to that of an elastomer but exhibits electrical and thermal properties that differ from the properties of a homogeneous elastomer. The composite has applications for wearable devices and other soft matter electronics, among others.

An apparatus and method for a wire-bond die-up area array package is described. The package includes an integrated circuit (IC) die, a substrate, and a thermally conducting body. A bottom surface of the IC die is exposed through an opening in a central region of the substrate. The die is mounted to the thermally conducting body. A bottom surface of the thermally conducting body is configured to be connected to a circuit board, such as a PWB, when the package is mounted to the circuit board. The bottom surface of the thermally conducting body may be connected directly to the circuit board, or may be coupled to the circuit board via solder balls or other mechanism. One or more wirebonds are used to electrically connect the die to a top surface of the substrate. A mold compound encapsulates the die, the wirebonds, and at least a portion of the top surface of the substrate, and fills a gap between peripheral edges of the IC die and inner walls of the substrate central window opening. A matrix of solder balls is attached to a bottom surface of the substrate.

The present invention includes a high performance communications cable exhibiting reduced cross-talk between transmission media that includes one or more core support separators (122) having various shaped profiles which define a clearance to maintain a spacing between transmission media or transmission media pairs. The core may be formed of a conductive or insulative material to further reduce cross-talk. The central core region may include a hollow opening or duct for blown fiber (ABF). The specially shaped core support-separator can be either interior to the cable jacket or be employed singularly without the benefit of a jacket, then a portion of the separator wherein a thin layer of material can act as a type of skin for future mechanical protection may exist. The cable may include a plurality of shaped sections that extend outward from the central region and that define distinct clearance channels for disposal therein of conductors and/or optical fibers.

Disclosed is an electroluminescence element, wherein at least a first electrode, a light-emitting layer, and a second electrode may be laminated on a substrate in said order. In said element, the light-emitting layer may contain quantum dots, and an intermediate layer formed from a polymer containing nitrogen atoms may be formed between the first electrode and the light-emitting layer.

Abstract of the Disclosure A sulfur-detecting sensor for detecting an integrated amount of hydrogen sulfide present in a gas stream passed over the sensor, characterized in that the sensor comprises a member formed of a material which is stable to hydrogen sulfide, and having a contacting side which is brought into contact with hydrogen sulfide, and a measuring member located on the contacting side of the former member, the measuring member being formed of a material which reacts with hydrogen sulfide to yield a reaction product having an increased electrical resistance value and/or making a phase change into a phase easily scattered by the gas stream at a temperature of the vicinity of the contacting side, and allowing an integrated amount of hydrogen sulfide passed over the sensor to be measured by measuring its electrical resistance value. A sulfur-detecting device using the detecting sensor is also disclosed.

An echogenic catheter, such as a needle catheter, formed at least in part of an intrinsically conductive organic polymer for providing a highly conductive surface in combination with an improved ability to ultrasonically image the catheter, and a method of performing a medical procedure using a catheter of the invention.

Disclosed is a nitride semiconductor light emitting device. The nitride semiconductor light emitting device comprises a buffer layer having a super-lattice layer on a silicon substrate, a first conductive clad layer on the buffer layer, an active layer on the first conductive clad layer, and a second conductive clad layer on the active layer.

The invention discloses a method for preparing a grapheme-polyvinyl chloride nano composite material through in situ suspension polymerization and belongs to the field of polymer nano composite materials. The method mainly comprises steps of preparation of grapheme oxide dispersion liquid, in situ suspension polymerization of grapheme oxide and chloroethylene or chloroethylene/functional monomer mixtures and post-processing of composite material slurry. By the aid of the method, the grapheme oxide, the chloroethylene and internal plasticization functional monomers are subjected to in situ suspension polymerization, polymer granule slurry of which the granule diameter is in a range from 100 mu m to 300 mu m is obtained, and a grapheme nano layer is coated by polyvinyl chloride or polyvinyl chloride copolymer completely and uniformly. The post-processing process of the slurry is basically the same as general polyvinyl chloride (PVC) resin used in an existing aqueous phase suspension polymerization method . Dried powder materials can be used for a plurality of polymeric material processing methods such as injection molding, extrusion, mold pressing, blow molding and casting.

A liquid crystal display apparatus includes an LCD panel assembly. A backlight assembly includes a light source that irradiates the LCD panel assembly. A light-sensing part generates a detection signal corresponding to a quantity of the light. A reference signal-generating part generates a reference signal corresponding to a reference quantity of the light. A control signal-generating part compares the detection signal with the reference signal to generate a control signal. A backlight assembly-controlling part controls the luminance of the light source in accordance with the control signal.

A communication device charged by solar energy forms a foldable mobile phone by pivotably connecting a first pivot provided on one end of a host to a display. One end face of the display is provided with a second pivot. A solar plate is pivotably connected to the second pivot of the display to foldably cover on the display. With the above structure, if the electricity of the battery of the mobile phone is insufficient, the user can unfold the solar plate from the display to charge the electrically-connected battery of the mobile phone, thereby to overcome the inconvenience in supplementing the electricity of the battery.

Apparatus and method for producing an electrostatic precipitator that includes a discharge electrode having an enhanced design, the enhanced design for improving an electric field and particulate collection efficiency within the electrostatic precipitator.

The embodiments described herein pertain generally to graphene/ceramic nanocomposite powder including a matrix ceramic; and graphene dispersed in the matrix ceramic and a preparation method thereof, and a graphene/ceramic nanocomposite material including the graphene/ceramic nanocomposite powder and a preparation method thereof.

Residential system includes photovoltaic power system including solar battery, and electrical storage device including battery. Electric load of residential system is selectively supplied with energy from power supply system, power generator and electrical storage device. Power generator allows energy to flow back to power supply system. Energy surplus judgment part calculates difference between generating energy of power generator and demand power for electric load (excess generating energy). Overall operation controller applies stored energy in electrical storage device to demand energy for electric load when excess generating energy is produced, and charges electrical storage device without applying generating energy of power generator to demand energy when excess generating energy is not produced.

Probe-based methods are provided for wire bonding and joining of structures. The wire bonds are formed via a meniscus-confined electrodeposition technique. The electrodeposition technique of the invention can also be used for fabricating one or more nano-sized or micro-sized elongated structures. The structures extend at least partially upwards from the surface of a substrate, and may extend fully upward from the substrate surface. Apparatus suitable for use with the electrodeposition technique are also provided.

The present invention discloses a field-effect transistor (FET) type biosensor and a bio-signal amplification method. The biosensor comprises a field-effect transistor chip, a biomolecular immobilization layer and at least one primer. The biomolecular immobilization layer is formed on a gate surface of the FET chip or a surface of an external device connected to a gate. The primer used for performing a nucleic acid amplification is immobilized onto the gate surface or the external device surface by binding with the biomolecular immobilization layer, such that an analyte can have a nucleic acid amplification reaction with the primer at room temperature or a constant temperature environment. With an extension of a nucleic acid sequence, the inducing electricity of the FET gate surface can be increased so as to amplify an inspection signal, thereby enhancing the sensitivity of the FET type biosensor effectively.