摘要:
The present invention is directed to photovoltaic devices comprising nanostructured materials, wherein such photovoltaic devices are comprised exclusively of inorganic components. Depending on the embodiment, such nanostructured materials are either 1-dimensional nanostructures or branched nanostructures, wherein such nanostructures are used to enhance the efficiency of the photovoltaic device, particularly for solar cell applications. Additionally, the present invention is also directed at methods of making and using such devices.
摘要:
The present invention is directed towards a source of ultraviolet energy, wherein the source is a UV-emitting LED's. In an embodiment of the invention, the UV-LED's are characterized by a base layer material including a substrate, a p-doped semiconductor material, a multiple quantum well, a n-doped semiconductor material, upon which base material a p-type metal resides and wherein the base structure has a mesa configuration, which mesa configuration may be rounded on a boundary surface, or which may be non-rounded, such as a mesa having an upper boundary surface that is flat. In other words, the p-type metal resides upon a mesa formed out of the base structure materials. In a more specific embodiment, the UV-LED structure includes n-type metallization layer, passivation layers, and bond pads positioned at appropriate locations of the device. In a more specific embodiment, the p-type metal layer is encapsulated in the encapsulating layer.
摘要:
An etchant including a halogenated salt, such as Cryolite (Na3AlF6) or potassium tetrafluoro borate (KBF4), is provided. The salt may be present in the etchant in an amount sufficient to etch a substrate and may have a melt temperature of greater than about 200 degrees Celsius. A method of wet etching may include contacting an etchant to at least one surface of a support layer of a multi-layer laminate, wherein the support layer may include aluminum oxide; or contacting an etchant to at least one surface of a support layer of a multi-layer laminate, wherein the etchant may include Cryolite (Na3AlF6), potassium tetrafluoro borate (KBF4), or both; and etching at least a portion of the support layer. The method may provide a laminate produced by growing a crystal onto an aluminum oxide support layer, and chemically removing at least a portion of the support layer by wet etch. An electronic device, optical device or combined device including the laminate is provided.
摘要:
A pressure sensor is provided. The pressure sensor includes a multi-layer laminate comprising a substrate and a semiconductor layer, wherein the substrate comprises single crystal or quasi-single crystal aluminum oxide, and a portion of the substrate that is spaced from a peripheral edge is wet etched to form an inwardly facing sidewall that defines a volume; and a substrate to which the multi-layer laminate is secured. The volume is an enclosed volume further defined by a substrate surface.
摘要:
The present invention is directed towards a source of ultraviolet energy, wherein the source is a UV-emitting LED. In an embodiment of the invention, the UV-LED is characterized by a base layer material including a substrate, a p-doped semiconductor material, a multiple quantum well, a n-doped semiconductor material, upon which base material a p-type metal resides and wherein the LED's are provided with a rounded mesa configuration. In a specific embodiment, the p-type metal is positioned upon a rounded mesa, such as a parabolic mesa, formed out of the base structure materials.
摘要:
A semiconductor chip packaging structure comprising a dielectric film having one or more through holes aligned with the one or more contact pads of at least one power semiconductor chip. A patterned electrically conductive layer adjacent to the dielectric film has one or more electrically conductive posts which extend through the one or more though holes aligned with the contact pads to electrically couple the conductive layer to the contact pads. In certain embodiments, one or more air gaps may be formed between the dielectric film and the active surface of the at least one power semiconductor chip. Methods for fabricating the semiconductor chip packaging structure are also disclosed.
摘要:
A steam sterilizable monolayer medical tubing comprising a blend of a melt strength enhancing agent of a homopolymer or copolymer of polypropylene having free-end long chain branches of propylene units, a melt flow index of greater than 10 and in an amount of 1-10% by weight and a second component selected from the group of (i) a selectively hydrogenated block copolymer of a vinyl aromatic hydrocarbon and a conjugated diene and (ii) a selectively hydrogenated block copolymer of a vinyl aromatic hydrocarbon and a conjugated diene to which has been grafted, an alpha, beta-olenfically unsaturated monocarboxylic or dicarboxylic acid reagent.
摘要:
The present invention provides an X-ray detector assembly and a fabrication method, where the X-ray detector assembly comprises a scintillator material disposed on a detector matrix array disposed on a detector substrate; an encapsulating coating disposed on the scintillator material; a moisture resistant cover disposed over the detector substrate and the encapsulating coating, and an adhesive material disposed between the detector substrate and the moisture resistant cover so as to form a moisture vapor barrier. The adhesive material is disposed so that it is not in contact with the encapsulating coating. The fabrication method of the X-ray detector assembly includes the steps of disposing the encapsulating coating on the scintillator material and a portion of the detector substrate and removing the encapsulating coating from the portion of the detector substrate.