750 results about "Metal backed" patented technology

A method of forming a semiconductor structure, includes steps of growing an oxide layer on a substrate to form a first wafer, separately forming a metal film on an oxidized substrate to form a second wafer, attaching the first and second wafers, performing a heat cycle for the first and second wafers to form a bond between the first and second wafers, and detaching a portion of the first wafer from the second wafer. Thus, a device, such as a back-plane for a semiconductor device, formed by the method includes an oxidized substrate, a metal film formed on the oxidized substrate forming a back-gate, a back-gate oxide formed on the back-gate, and a silicon layer formed on the back-gate oxide.

A planar concentrator solar power module has a planar base, an aligned array of linear photovoltaic cell circuits on the base and an array of linear Fresnel lenses or linear mirrors for directing focused solar radiation on the aligned array of linear photovoltaic cell circuits. The cell circuits are mounted on a back panel which may be a metal back plate. The module includes a voltage stand-off layer and heat spreader layer. The cell circuit array may include multiple sets of cells formed by dividing planar silicon cells. The cell circuit area is less than a total area of the module. Each linear lens or linear mirror has a length greater than a length of the adjacent cell circuit. The circuit backplate is encapsulated by lamination for weather protection. The planar module is generally rectangular with alternating rows of linear cell circuits and linear lenses or linear mirrors.

A method of forming a plurality of discrete, interconnected solar cells mounted on a carrier by providing a first semiconductor substrate; depositing on the first substrate a sequence of layers of semiconductor material forming a solar cell structure; forming a metal back contact layer over the solar cell structure; mounting a carrier on top of the metal back contact; removing the first substrate; and lithographically patterning and etching the solar cell structure to form a plurality of discrete solar cells mounted on the carrier.

A golf club head having a cavity back arrangement and a sandwich construction is disclosed. The club head contains a thin strike face, a metal back flange and a light weight insert located between the strike face and the back flange to provide structural support to the strike face. The insert is in contact with at least a portion of the strike face and is made from light weight materials including magnesium and titanium. The club head is constructed to move the center of gravity lower and toward the back of the club head and to increase the moment of inertia. The insert provides the necessary support with adversely affecting either the center of gravity or the moment of inertia.

A surveillance system that is comprised of an environmentally sealed metal cabinet enclosure consisting of high impact resistant metal, said enclosure consists of a metal back and having two equal metal sides and an equal top and bottom pieces that are framed and fastened in such a manner as to form a framed rectangular metal box style enclosure. A front mounted metal access door with two recessed metal hinges, a rubberized gasket to form a seal and an attached locking device and handle complete the cabinet enclosure. Side access ports of at least one per side, and generally being round in nature provide a side access point to the interior of the cabinet, said access ports provide a mounting point for the generally hollow camera mounting arm to be attached to each side of said cabinet. The said access ports allow wiring and cables to pass through the connected camera mounting arm to the interior of the cabinet, with said camera mounting arm ends being environmentally sealable, thus rendering the wiring and cable protected from the environment and secure from tampering or accidental damage. The cabinet contains and houses the various subsystem components consisting of, but not limited to, a video encoding device, communication equipment and various control systems for powering and controlling the plurality of pan, tilt and zoom cameras with analytic capabilities, sensor apparatus, various warning devices and having at least one, but not limited to one, power source providing power to the plurality of electronic devices. Secondly, a programmable LED digital message board is positioned and attached at or near the top of the cabinet to provide a highly visible visual warning that the area is under surveillance.

The invention relates to a mobile terminal and a metal back cover thereof. The metal back cover comprises a base plate (11) and a frame connected to the periphery of the base plate, wherein a gap for dividing the metal back cover into a ground end (10) and an antenna end (20) is formed in the metal back cover; the ground end (10) and the antenna end (20) are connected through an insulating material filling the gap; and the gap is formed in the frame. An independent metal body is separated to serve as the antenna end through the gap in the frame of the metal back cover, and the base plate of the metal back cover can be prevented from being slotted, so that the integrity of the base plate is guaranteed, and the appearance design and user experience aspects of the mobile terminal can be definitely improved.

The invention relate to a solar battery assembly and a preparation method thereof. The solar battery assembly comprises a plurality of solar batteries and at least one fourth laser scribing, wherein each solar battery comprises a transparent conductive film, a solar battery layer and a metal back electrode which are sequentially overlapped, and the adjacent solar batteries are connected in serieswith each other through a laser scribing process; the fourth laser scribing penetrates through the metal back electrodes, the solar battery layers and the transparent conductive films, and the adjacent solar batteries are disconnected to form at least two independent battery units, wherein each battery unit comprises the solar batteries connected in series. The solar batteries assembly is dividedinto a plurality of independent battery units through the fourth laser scribing so that each battery unit comprises the specified number of solar batteries connected in series, therefore, the required working voltage and current can be obtained.

A film solar battery with copper, indium, gallium selenium and its parparing method relates to semiconductor film preparation and structure design of semiconductor film device. It has the characteristics as using n-ZnS as a window layer, CuIn GaSe P-semiconductor film as an absorption layer and to form ZnS/Cu (In,Ga) Sezp-n junction with ZnS, of which metal back electrode is Mo-Cu alloy. In present invention. ZnS has been used as a window layer of film solar battery to replace ZnO material so as to increase absorption spectral region of sun light at absorption layer and to avoid the application of hazardous material of Cd, furthermore Mo-Cu alloy has been used as a back electrode to replace Mo for making joint between battery and backing more solid to raise the yield of battery production.

The invention provides an antenna system and a mobile terminal. A low-outline antenna system which comprises a first resonance arm, a second resonance arm and a third resonance arm is divided on the metal back shell of the mobile terminal; a first radio frequency circuit and at least two tuning switches are arranged between the first resonance arm, which is positioned between the second resonance arm and the third resonance arm, and the grounding end; and by adjusting switch-on and switch-off of different tuning switches, the communication efficiency and bandwidth of communication frequency bands of the communication antenna formed by the first resonance arm can be adjusted.

A method of manufacturing a solar cell by providing a first substrate; depositing on the first substrate a sequence of layers of semiconductor material forming a solar cell including a top subcell and a bottom subcell; forming a metal back contact over the bottom subcell; forming a group of discrete, spaced-apart first bonding elements over the surface of the back metal contact; attaching a surrogate substrate on top of the back metal contact using the bonding elements; and removing the first substrate to expose the surface of the top subcell.

The invention provides a full metal back shell antenna system, which comprises a metal back shell, a circuit board with main grounding points, and a main antenna module and a small antenna module electrically connected with the circuit board, wherein the metal back shell comprises a main body part, four side walls and two gaps; the two gaps cut the metal back shell into a first metal part, a second metal part and a third metal part which are insulated and separated mutually; the first metal part comprises a top gap; the second metal part comprises at least one bottom gap; the main antenna module comprises a matching circuit, a main feed point and at least one grounding point arranged on the circuit board; the small antenna module comprises at least one small antenna unit; and each small antenna unit comprises a feed point and at least one grounding point. Compared with the prior art, the full metal back shell antenna system can keep integrity of the metal back shell to the largest degree, and the appearance is attractive.

The invention relates to a flexile and large-area perovskite solar cell module and a preparation method thereof. The perovskite solar cell module comprises a metal back reflection layer, an electron transmission layer, a perovskite absorption layer, a cavity transmission layer, a transparent conductive front electrode, transparent packaging glue and a flexible and transparent plastic cover plate, which are stacked on a flexible substrate in sequence; light enters from a direction of the flexible and transparent plastic cover plate; the metal back reflection layer, the electron transmission layer, the perovskite absorption layer, the cavity transmission layer and the transparent conductive front electrode are separated by pre-set separation grooves to form a plurality of sub-cells which are connected in series. The flexile and large-area perovskite solar cell module has no requirements on permeability and conductivity of the substrate and the common and cheap flexible substrate can be adopted, so that the cost is remarkably reduced; the preparation method is simple in process, the rate of finished products is high and large-scale production is easy to realize; on the basis of not influencing performances of a perovskite solar cell, adverse effects on the perovskite solar cell, caused by external factors including water vapor, chemical corrosion, external stress and the like, can be avoided, and the reliability of the cell is improved.

Provided is an alkali metal doping method in the large-scale production of CIGS (copper, indium, gallium, selenium) thin-film solar cells. The method comprises a step of depositing an Mo metal back electrode layer on a glass substrate, a stainless indium substrate or a flexible substrate; a step of preparing a CIGS optical absorption layer; performing alkali metal element doping and deposition on the CIGS optical absorption layer; a step of performing thermal treatment on the alkali metal thin film formed after the deposition so as to make the alkali metal permeate into a CIGS crystal boundary and to improve characteristics of the crystal boundary; a step of cleaning alkali metal residues; a step of depositing a CdS, ZnS or InS buffer layer on the CIGS thin film after the cleaning of the alkali metal residues; and a step of depositing a high-resistance i-ZnO layer and a high-resistance ZnO:Al window layer, and thus a CIGS solar cell is formed. According to the alkali metal doping method, after annealing, the permeation of the alkali metal does not affect the generation of the CIGS crystal lattices; after the permeation of the alkali metal into the CIGS optical absorption layer, filling factors are substantially improved and the cell photoelectric conversion efficiency is improved when the open circuit voltage is improved.

An electron beam apparatus in which a spacer having a high-resistance film coating a surface of a base material is inserted between a rear plate having electron emitting elements and row-direction wires, and a faceplate having a metal back. The row-direction wires and the metal back are electrically connected via the high-resistance film. An electric field near an electron emitting element near the spacer is maintained to substantially constant irrespective of the positional relationship between the spacer and the electron emitting element near the spacer. When a sheet resistance value of the high-resistance film on a first facing surface of the spacer that faces a row-direction wire is represented by R1, and a sheet resistance value of the high-resistance film on a side surface adjacent to the electron emitting element is represented by R2, R2/R1 is 10 to 200.