| Patent application number | Description | Published |
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| 20080314288 | Mixture For Doping Semiconductors - A doping mixture for coating semiconductor substrates which are then subjected to a high temperature treatment to form a doped layer includes at least one p- or n-dopant, water and a mixture of two or more surfactants. At least one of the surfactants is nonionic. Also provided are a method for producing such a doping mixture and the use thereof. | 12-25-2008 |
| 20100136768 | METHOD FOR SIMULTANEOUS DOPING AND OXIDIZING SEMICONDUCTOR SUBSTRATES AND THE USE THEREOF - The invention relates to a method for simultaneous doping and oxidizing semiconductor substrates and also to doped and oxidized semiconductors substrates produced in this manner. Furthermore, the invention relates to the use of this method for producing solar cells. | 06-03-2010 |
| 20100213166 | Process and Device for The Precision-Processing Of Substrates by Means of a Laser Coupled Into a Liquid Stream, And Use of Same - The invention relates to a method for precision processing of substrates in which a liquid jet which is directed towards a substrate surface and contains a processing reagent is guided over the regions of the substrate to be processed, a laser beam being coupled into the liquid jet. Likewise, a device which is suitable for implementation of the method is described. The method is used for different process steps in the production of solar cells. | 08-26-2010 |
| 20110092074 | Texturing and cleaning agent for the surface treatment of wafers and use thereof - A liquid agent for the surface treatment of monocrystalline wafers, which contains an alkaline etching agent and also at least one low-volatile organic compound. Systems of this type can be used both for the cleaning, damage etch and texturing of wafer surfaces in a single etching step and exclusively for the texturing of silicon wafers with different surface quality, whether it now be wire-sawn wafers with high surface damage or chemically polished surfaces with minimum damage density. | 04-21-2011 |
| 20110139241 | SOLAR CELL AND METHOD FOR PRODUCING A SOLAR CELL - A solar cell and to a method for producing a solar cell is provided. The solar cell includes a semi-conductor substrate with doped regions ( | 06-16-2011 |
| 20110155239 | SOLAR CELL AND METHOD FOR THE PRODUCTION THEREOF - A solar cell having a semiconductor substrate with a front face and a rear face extending substantially parallel thereto, a front face metallization, a rear face metallization and at least three doped regions having at least two different conductivity types, including: a first doped region with a first conductivity type located on the front face of the semiconductor substrate and extends substantially over the entire front face; a second doped region with the opposite conductivity type to that of the first conductivity type located on the rear face and extends partially over said face; and a third doped region with the first conductivity type located on the rear face and extends partially over said face. The front face metallization is connected to the first doped region and the rear face metallization is connected to the second doped region in an electrically conductive manner and the solar cell has an electrically conductive connection which connects the third doped region to the front face metallization and/or the first doped region. | 06-30-2011 |
| 20110174355 | SOLAR CELL AND SOLAR CELL MODULE WITH ONE-SIDED CONNECTIONS - A solar cell, in particular for connecting to a solar cell module, including at least one metallic base contact, at least one metallic emitter contact ( | 07-21-2011 |
| 20110177651 | METHOD FOR PRODUCING A METAL STRUCTURE ON A SURFACE OF A SEMICONDUCTOR SUBSTRATE - A method for producing a metal structure on a surface of a semiconductor substrate, including the following steps: A applying a metal layer, B applying a structuring layer and C removing the structuring layer. Either step B is carried out after step A, and step C after step B in a masking method, so that the structuring layer covers the metal layer at least partially and, after step B is carried out, the metal layer is removed from the regions not covered by the structuring layer, before step C is carried out or, in a lift-off method, step A is carried out after step B, and step C after step A, so that the structuring layer is covered essentially by the metal layer and, at least in the regions, in which the metal layer covers the structuring layer, the metal layer is detached when step C is carried out. It is essential that the structuring layer in step B is produced by a hot melt ink. | 07-21-2011 |
| 20110233711 | METHOD FOR LOCAL CONTACTING AND LOCAL DOPING OF A SEMICONDUCTOR LAYER - A method for local contacting and local doping of a semiconductor layer including the following process steps: A) Generation of a layer structure on the semiconductor layer through i) application of at least one intermediate layer on one side of the semiconductor layer, and ii) application of at least one metal layer onto the intermediate layer last applied in step i), wherein the metal layer at least partly covers the last applied intermediate layer, B) Local heating of the layer structure in such a manner that in a local region a short-time melt-mixture of at least partial regions of at least the layers: metal layer, intermediate layer and semiconductor layer, forms. After solidification of the melt-mixture, a contacting is created between metal layer and semiconductor layer. It is essential that in step A) i) at least one intermediate layer designed as dopant layer is applied, which contains a dopant wherein the dopant has a greater solubility in the semiconductor layer than the metal of the metal layer. | 09-29-2011 |
| 20110272020 | SOLAR CELL AND METHOD FOR PRODUCING A SOLAR CELL FROM A SILICON SUBSTRATE - A method for producing a solar cell from a silicon wafer, including the following process steps: A) texturizing one side of the silicon substrate ( | 11-10-2011 |
| 20120074971 | MEASURING DEVICE FOR ELECTRICALLY MEASURING A FLAT MEASUREMENT STRUCTURE THAT CAN BE CONTACTED ON ONE SIDE - A measuring device for electrically measuring a measurement structure that can be electrically contacted at one measuring side, in particular an optoelectronic element, such as a solar cell, including at least two contacting units for electrically contacting the measurement structure and at least one support element for supporting the measurement structure with the measuring side on the support element. It is essential that the measuring device includes at least one suction line for the connection to the suction unit and at least one suction opening that is connected in a fluid-conducting manner to the suction line, wherein the suction opening is arranged in and/or on the support element such that the measurement structure can be pressed against the support element by suctioning via the suction opening. When the measurement structure rests on the support element, the contacting unit can be pressed against the measuring side of the measurement structure for the electrical contacting thereof. | 03-29-2012 |
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| 20090130200 | GRANULES FOR CONTROLLED RELEASE OF TAMSULOSIN - Granules for controlled release of Tamsulosin, the granules including Tamsulosin and a carrier matrix. The carrier matrix includes a) 2 to 25% by weight of an alginate and b) 30 to 70% by weight of a macromolecular substance selected from the group consisting of: methacrylic acid/ethyl acrylate 1:1 copolymer, methacrylic acid/methyl methacrylate 1:1 or 1:2 copolymers, aminoalkyl methacrylate copolymer, vinyl acetate/crotonic acid copolymer, polyvinyl acetate phthalate, ethylene-vinyl acetate, cellulose acetate phthalate, hydroxypropylmethylcellulose, sodium carboxymethylcellulose, carrageenan, crosslinked chitosan, polyethylene-vinyl acetate, poly-L-lactic acid, xanthan gum, polyvinyl acetate and mixtures thereof. The carrier matrix further includes 10 to 50% by weight of a hydrophobic substance selected from the group consisting of: glycerol behenate, glyceryl monostearate, wax, mono-, di- and trisubstituted glycerides, calcium stearate and mixtures thereof. | 05-21-2009 |
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| 20100191611 | PORTABLE ELECTRONIC CONSTRUCTION ESTIMATOR - An electronic estimator has a clipboard size electronic touch screen. The contractor can draw on it, use it as a touch screen to select materials for a job, estimate costs including a running total of costs for a job, and input all client info. After initial contact by a potential customer, the contractor can input the client information including location and use a global positioning system (GPS) to travel to the client location. The contractor can use it to order materials for the job from the supplier. | 07-29-2010 |
| 20110184837 | SYSTEM AND METHOD FOR ORDERING PRODUCTS AND MATERIALS USING AN ELECTRONIC SKU FINDER - A programmed data control server compiles a database of product and materials order information from all available suppliers, allows users Internet access to search and order from the database and arrange for delivery or pickup, and inputs and tracks orders to selected suppliers via the Internet. Customers utilize a touch screen on a remote electronic device, which may be a handheld dedicated device exclusively connected to the data control server or other Internet connected device, to search the data control server, save desirable repeat order information, search for special offers, place orders, set up delivery or pickups, and track orders through the data control server. | 07-28-2011 |
