758 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 metal-backed acetabular implant and a method of forming the same.

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 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 cell circuit may have cells mounted in shingle fashion to form a shingled-cell circuit. In an alternative module, linear extrusions on the circuit element have faces for mounting the linear mirrors for deflecting sun rays impinging on each mirror onto the shingled-cells. The linear extrusions are side-wall and inner extrusions with triangular cross-sections. 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 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.

The invention discloses an orbital angular momentum vortex wave beam generation apparatus and method. According to the technical scheme, an electromagnetic super-surface structure (3) is formed by M lines and N columns of electromagnetic super-surface reflection units (31) and dielectric substrates (32); a phase-shifting network (4) is formed by the electromagnetic super-surface structure (3) and a metal back plate (2); the metal back plate (2) is positioned on the back surface of the electromagnetic super-surface structure (3), and the metal back plate is also used as an earth plate; a feed source (1) is put in the central axial position of the electromagnetic super-surface structure (3); incident wave from the feed source (1) irradiates on the electromagnetic super-surface structure; and after the incident wave obtains compensated phase position from the electromagnetic super-surface structure, the incident wave is reflected by the phase-shifting network (4) to generate the orbital angular momentum vortex wave beam(5) with an intrinsic mode 1. According to the orbital angular momentum vortex wave beam generation apparatus and method, the problems of complex technical structure, high cost, beam divergence and low efficiency in the prior art are solved; and the apparatus and method can be used for information transmitting and receiving in the communication technology, and the communication capacity can be increased.

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.

The invention discloses a Cu-Zn-Sn-S compound semiconductor-film solar battery and a preparation method. The battery comprises a glass substrate, wherein a metal back electrode layer, a P-type Cu2ZnSnS4 (CZTS) absorption layer, an n-type CdS buffer layer and a transparent conducting oxide film window layer are sequentially deposited on the glass substrate. The method comprises special aftertreatment for the P-type Cu2ZnSnS4 absorption layer. The preparation method has the advantage of substituting CZTS for CIGS as the novel material of the absorption layer of the film solar battery. As the abundance of Zn and Sn in the CZTS in earth crust is 75 ppm and 2.2 ppm respectively, the solar battery has the advantages of rich resources, no toxic components and environmental friendliness, thereby becoming the novel film solar battery with the highest development potential, low cost and no pollution.

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.

The invention relates to an NFC antenna structure for a metal back cover mobile phone. An NFC antenna with a coil form is arranged in a metal back cover of a mobile phone. The metal back cover of the mobile phone is provided with a concave groove used for blocking a vertex of the metal back cover of the mobile phone and a hole used for arranging a camera. The NFC antenna communicates with an external reader-writer antenna via the concave groove and the hole based on magnetic field coupling. The NFC antenna comprises an NFC coil and a ferrite magnetic sheet. The concave groove starts at one side of the metal back cover of the mobile phone and ends at the opposite side of the metal back cover of the mobile phone. The concave groove comprises two transverse grooves and two vertical grooves. The NFC antenna employs the opening for arranging the camera in the metal back cover of the mobile phone for radiation and the metal back cover of the mobile phone is provided with the concave groove, so that the vortex of the metal back cover is prevented from causing magnetic field interference to the NFC antenna and the excellent electrical performance of the NFC antenna and the reader-writer can be guaranteed during work.

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 provides a polarization-insensitive photic driving tunable TeraHertz wave metamaterial absorber comprising a unit structure, a photosensitive semiconductor, and a metal bottom plate. The unit structure comprises a medium substrate, a metal pattern layer, and a metal back plate. The medium substrate is disposed between the metal pattern layer and the metal back plate, and the metal pattern layer is provided with the photosensitive semiconductor in an embedded manner, and the unit structure is disposed on the metal bottom plate. By adopting different conductivities of loading semiconductor silicon, the slotting ring structure electromagnetic resonance and impedance matching characteristic can be adjusted to realize the absorption characteristic adjusting effect in the wide TeraHertz frequency range. When the TeraHertz is irradiated on the absorber, the magnetic field loop is generated on the periphery of the resonance structure, and the generating of the ohmic loss of the metal sheet and the semiconductor silicon can be caused by the magnetic field loop, and the dielectric loss can be generated on the dielectric substrate, and the electromagnetic energy of the electromagnetic waves can be converted into the heat energy by the dielectric loss and the ohmic loss, and therefore the TeraHertz loss absorption adjusting can be realized.

In a flat type image forming apparatus formed by electron emitting devices, the invention is to provide a light emitting substrate, capable of relaxing influence of an abnormal discharge on the electron emitting devices. On a glass substrate 1, a resistor member 4 extending in X- and Y-direction, and a black member 6 extending in X- and Y-directions are formed. Phosphors 5 are positioned in apertures of the black member 6, and are covered by metal backs 7 divided in X- and Y-directions. The metal backs 7 and the resistor member 4 are electrically connected through the black member 6, and the resistance between the metal backs 7 is defined by the resistor member 4 in the Y-direction in which the adjacent metal backs 7 have a wider gap than in the X-direction.

The invention provides a full-spectrum absorption enhanced hydrogenated amorphous silicon hydride thin film solar cell, which comprises a metal back electrode (1), nano-silver structure arrays (2), a photosensitive layer a-Si:H thin film (3), nano a-Si:H conical structure arrays (4) distributed in the two-dimensional period and nano ITO (Indium Tin Oxide) conical structure arrays (5) distributed in the two-dimensional period, wherein the nano-silver structure arrays (2) are arranged on the metal back electrode and are distributed in a two-dimensional period; parts between the nano-silver structure arrays (2) distributed in the two-dimensional period are filled with transparent conducting medium of indium tin oxide (ITO); and parts between the nano ITO conical structure arrays are filled with ITO and are distributed in the two-dimensional period. According to the hydrogenated amorphous silicon hydride thin film solar cell disclosed by the invention, the a-Si:H and ITO conical structurearrays are introduced on the upper surface of the photosensitive layer so as to ensure photons with higher projectile energy reach impedance matching during entering the photosensitive layer and further acquire short waveband for absorbing and enhancing; and the nano-silver periodic structure arrays are introduced to the lower surface of the photosensitive layer to enable photons with lower energy to be located to the photosensitive layer and further acquire long waveband absorbing and enhancing. Therefore, the light absorbing and enhancing effect in the full spectrum is realized, which is conductive to greatly improve the photoelectric conversion efficiency of the solar cell.

A method (and resultant structure) of forming a semiconductor device, includes forming a metal-back-gate over a substrate and a metal back-gate, forming a passivation layer on the metal back-gate to prevent the metal back-gate from reacting with radical species, and providing an intermediate gluing layer between the substrate and the metal back-gate to enhance adhesion.

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.

The invention belongs to the technical field of dual-polarization multifunctional devices, and specifically relates to a dual-polarization multifunctional device based on an anisotropic super-surface, and a design method. The device consists of a feed source and the anisotropic super-surface. The distance between the feed source and the anisotropic super-surface is F, and the projection of the feed source on the anisotropic super-surface is located at the center of the anisotropic super-surface. The anisotropic super-surface consists of N*N anisotropic super-surface units, wherein the size parameters of the anisotropic super-surface units are different from each other. Each anisotropic super-surface unit consist of an upper composite metal structure, a lower composite metal structure, two dielectric plates and a bottom metal back plate, wherein the upper and lower composite metal structures are completely the same, and the height of each dielectric plate is h. The composite metal structures are respectively formed by the nesting of a cross-shaped paster in a cross-shaped ring. The device takes the lead in synthesizing a four-beam phase gradient and a paraboloid gradient and synthesizing a four-beam phase gradient and a linear gradient based on the anisotropic super-surface, and achieves the multifunctional and complex electromagnetic wave regulation and control.