Class / Patent application number | Description | Number of patent applications / Date published |
423347000 | Of hydrogen (e.g., silane, etc.) | 32 |
20090068082 | Synthesis and characterization of a highly stable amorphous silicon hydride as the product of a catalytic hydrogen plasma reaction - This invention relates to a highly stable silicon hydride (SiH(1/p)) surface coating formed from high binding energy hydride ions. SiH(1/p) may be synthesized in a cell for the catalysis of atomic hydrogen to form novel hydrogen species and/or compositions of matter containing new forms of hydrogen. The reaction may be maintained by a microwave plasma of a source of atomic hydrogen, a source of catalyst, and a source of silicon. | 03-12-2009 |
20090123360 | Inorganic hydrogen compounds - Compounds are provided comprising at least one neutral, positive, or negative hydrogen species having a binding energy greater than its corresponding ordinary hydrogen species, or greater than any hydrogen species for which the corresponding ordinary hydrogen species is unstable or is not observed. Compounds comprise at least one increased binding energy hydrogen species and at least one other atom, molecule, or ion other than an increased binding energy hydrogen species. One group of such compounds contains one or more increased binding energy hydrogen species selected from the group consisting of H | 05-14-2009 |
20090304568 | Process for Producing Silane - The invention describes a process for producing silane, wherein magnesium hydride and halosilanes are reacted into silane and a by-product separable into at least two compounds, in a liquid reaction medium at a temperature T≧100° C. and a reaction time/residence time <60 min, and wherein at least one of said compounds is recycled. | 12-10-2009 |
20100061915 | METHOD FOR DEPOSITING SI-CONTAINING FILM, INSULATOR FILM, AND SEMICONDUCTOR DEVICE - A method for depositing a Si-containing film by plasma CVD is provided, and this method uses a silane compound as a film source. The silane compound has hydrogen atom or an alkoxy group as a reactive group, and has at least 2 silicon atoms in the molecule. The at least 2 silicon atoms are bonded by an intervening saturated hydrocarbon group. The ratio of the number of carbon atoms other than those included in the alkoxy group [C] to the number of silicon atoms [Si] ([C]/[Si]) is at least 3, and all silicon atoms are directly bonded to at least 2 carbon atoms. This method has realized an effective film deposition rate. Chemical stability of the film has also been improved by providing hydrophobicity with the film simultaneously with the suppression of the reactivity of the silicon atom for the nucleophilic reaction. | 03-11-2010 |
20100074824 | PROCESS FOR CONTINUOUSLY PRODUCING MONOSILANE - Provided is a process for readily and efficiently producing monosilane which is industrially significantly useful. | 03-25-2010 |
20110070142 | Hydrogen Reservoir Based on Silicon Nano-Structures - The invention relates to a hydrogen reservoir comprising a substance suitable for storing hydrogen wherein said substance is made up of nano-structured silicon. It also relates to a process for manufacturing and a method for use of this hydrogen reservoir. | 03-24-2011 |
20110076220 | PRODUCTION OF SILANES BY ACID HYDROLYSIS OF ALLOYS OF SILICON AND OF ALKALINE-EARTH METALS OR ALKALINE-EARTH METAL SILICIDES - Method of preparing a compound of formula Si | 03-31-2011 |
20110104034 | Hydride compounds - This invention is directed to compositions of matter comprising a hydride ion having a binding energy greater than about 0.8 eV. The claimed hydride ions may be combined with cations, including a proton, to form novel hydrides. | 05-05-2011 |
20110158886 | POLYSILANE PRODUCTION PROCESS - A polysilane production process comprising reacting a specific silane compound typified by a cyclic silane compound represented by the following formula (2) in the presence of a binuclear metal complex represented by the following formula (4). | 06-30-2011 |
20110189072 | PROCESS FOR PREPARING HIGHER HYDRIDOSILANES - Process for preparing higher hydridosilanes of the general formula H—(SiH | 08-04-2011 |
20110189073 | PROCESS FOR PURIFICATION OF MONOSILANE - Provided is a method of purifying monosilane. More particularly, the method includes removing impurities from a crude material containing monosilane and ethylene by fractional distillation (operation 1), and removing ethylene and residual impurities by passing the crude material purified in operation 1 through activated carbon (operation 2). According to the method, high-purity monosilane may be more simply and effectively obtained without additional production of byproducts by selectively adsorbing ethylene, which is difficult to separate by fractional distillation, using an activated carbon. | 08-04-2011 |
20110200513 | METHOD FOR PRODUCING MONOSILANE AND TETRAALKOXYSILANE - The present invention relates to method for producing monosilane and tetraalkoxysilane comprising subjecting alkoxysilane represented by formula (1) | 08-18-2011 |
20110268642 | PROCESS FOR PURIFYING LOW MOLECULAR WEIGHT HYDRIDOSILANES - The present invention relates to a process for purifying low molecular weight hydridosilane solutions, in which a solution to be purified comprising a) at least one low molecular weight hydridosilane, b) at least one solvent and c) at least one impurity selected from the group of the compounds having at least 20 silicon atoms and/or the group of the homogeneous catalyst systems is subjected to a crossflow membrane process with at least one membrane separation step using a permeation membrane. | 11-03-2011 |
20120020864 | Hydride Compounds with Silicon and Germanium Core Atoms and method of Synthesizing Same - A method is provided for synthesizing silicon-germanium hydride compounds of the formula (H | 01-26-2012 |
20120128568 | PRODUCTION OF SILANES FROM SILICON ALLOYS AND ALKALINE EARTH METALS OR ALKALINE EARTH METAL SILICIDES - The invention relates to a method for preparing a compound or mixture of compounds of the formula Si | 05-24-2012 |
20120263639 | PROCESS FOR PREPARING HIGHER HYDRIDOSILANES - The invention relates to a method for producing higher hydridosilane wherein at least one lower hydridosilane and at least one heterogeneous catalyst are brought to reaction, wherein the at least one catalyst comprises Cu, Ni, Cr and/or Co applied to a carrier and/or oxide of Cu, Ni, Cr and/or Co applied to a carrier, the hydridosilane that can be produced according to said method and use thereof. | 10-18-2012 |
20120294791 | METHOD OF PRODUCING CYCLOHEXASILANE COMPOUNDS - A method of preparing a cyclohexasilane compound from trichlorosilane is provided. The method includes contacting trichlorosilane with a reagent composition to produce a compound containing a tetradecahalocyclohexasilane dianion, such as a tetradecachlorocyclohexasilane dianion. The reagent composition typically includes (a) tertiary polyamine ligand; and (b) a deprotonating reagent, such as a tertiary amine having a pKa of at least about 10.5. Methods of converting the tetradecahalocyclohexasilane dianion-containing compound to cyclohexasilane or a dodecaorganocyclohexasilane are also provided. | 11-22-2012 |
20120321540 | METHOD FOR PRODUCING OLIGOSILANES - A method for producing oligosilanes by reacting halogenated oligosilanes with a metal hydride includes a reaction occurring in the presence of a catalyst and an alkali metal halide, the catalyst including a halide of a multivalent metal; and the reaction occurs in an ethereal solution. | 12-20-2012 |
20130004405 | PROCESSES FOR PRODUCING SILANE IN A BUBBLE COLUMN - Methods for producing silane by reacting a hydride and a halosilane are disclosed. Some embodiments involve use of a column which is not mechanically agitated and in which reactants may be introduced in a counter-current arrangement. Some embodiments involve use of a baffled column which has multiple reaction zones. | 01-03-2013 |
20130156677 | PROCESS FOR SEPARATING MONOSILANE FROM CHLOROSILANES-RICH MIXTURE - A process for separating monosilane from a mixture comprising monosilane and chlorosilanes comprising: a) Introducing mixture to a condenser ( | 06-20-2013 |
20130195746 | METHOD AND SYSTEM FOR PRODUCTION OF SILICON AND DEVICIES - In one embodiment of the invention, the silane and hydrogen (and inert gas) mixture is produced using catalytic gasification of silicon (or si-containing compounds including silicon alloys) with a hydrogen source such as hydrogen gas, atomic hydrogen and proton. By not separating silane from hydrogen and co-purifying all the gases (silane and hydrogen, inert gas) in the gas mixture simultaneously, the mixture is co-purified and then provide feed stock for downstream application without further diluting the silane gas. One aspect of the invention addresses the need for an improved production method, apparatus and composition for silane gas mixtures for large scale low cost manufacturing of high purity silicon and distributed on-site turnkey applications including but not limited to the manufacture of semiconductor integrated circuits, photovoltaic solar cells, LCD-flat panels and other electronic devices. Thus, various embodiments of the invention can greatly reduce the cost and simplify the process of manufacturing silicon. | 08-01-2013 |
20130272948 | PROCESS FOR PRODUCING MONOSILANE FROM DICHLOROSILANE - A process for continuously producing monosilane by means of an apparatus comprising a reaction column, at least two upper condensers each with a reflux feed pipe, a bottom reboiler and an evaporation tank connected to a bottom portion of the reaction column; the process comprising: a) supplying dichlorosilane or a mixture of chlorosilanes to an upper stage of the reaction column via an upper feed injection point b) supplying a catalyst to said upper stage of the reaction column via a lower injection point c) introducing the resultant mixture from the top portion of the reaction column to the plurality of upper condensers d) separating monosilane from condensates in the upper condensers e) recycling the condensates through the reflux feed pipes to the upper stage of the reaction column f) bringing the condensates into contact with the catalyst in the reaction column. | 10-17-2013 |
20140004029 | METHOD FOR REDUCING THE ALUMINUM CONTENT OF NEOPENTASILANE | 01-02-2014 |
20140093443 | STORAGE MATERIAL AND METHOD FOR OBTAINING H-SILANES THEREFROM - A storage material for obtaining H-silanes which is present in the form of a hydrogenated polysilane (HPS), as a pure compound or as a mixture of compounds having on average at least six direct Si—Si bonds, the substituenis of which predominantly consist of hydrogen and in the composition of which the atomic ratio of sabstitueot to silicon is at least 1:1. | 04-03-2014 |
20140328740 | METHODS FOR PRODUCING SILANE - Methods and systems for producing silane that use electrolysis to regenerate reactive components therein are disclosed. The methods and systems may be substantially closed-loop with respect to halogen, an alkali or alkaline earth metal and/or hydrogen. | 11-06-2014 |
20140369918 | METHOD AND APPARATUS FOR PRODUCTION OF SILANE AND HYDROHALOSILANES - Silane and hydrohalosilanes of the general formula H | 12-18-2014 |
20150078980 | METHOD AND APPARATUS FOR PRODUCING DISILANE THROUGH PYROLYSIS OF MONOSILANE - An apparatus for producing disilane through pyrolysis of monosilane, includes: a monosilane pyrolysis unit; a solid particle removal unit which removes solid particles generated in the pyrolysis unit; a condensing unit which liquefies and collects unreacted monosilane, and disilane and higher silanes with three (3) to seven (7) silicon atoms as pyrolysis products excluding hydrogen from a gas with the solid particles removed; a first separation unit which separates monosilane from a mixture of the liquefied unreacted monosilane, disilane and higher silanes; and a second separation unit which separates disilane and higher silanes from the mixture with the monosilane removed. In accordance with the present disclosure, disilane can be produced economically and efficiently with high purity through pyrolysis of monosilane. | 03-19-2015 |
20150307363 | METHOD FOR HYDROGENATING HIGHER HALOGEN-CONTAINING SILANE COMPOUNDS - The present invention relates to a continuous process for hydrogenating halogen-containing silane compounds having at least three silicon atoms, in which at least one halogen-containing silane compound having at least three silicon atoms and at least one hydrogenating agent are converted continuously to form at least one hydridosilane compound having at least 3 silicon atoms and oxidized hydrogenating agent, and wherein oxidized hydrogenating agent is withdrawn and reduced, and the reaction product of this reduction reaction is sent back to the hydrogenation, to the hydridosilane compounds obtainable by this process and to the use thereof. | 10-29-2015 |
20160046493 | METHOD AND APPARATUS FOR THE PREPARATION OF SILANES - The invention relates to a process for preparing dimeric and/or trimeric silanes by conversion of monosilane in a plasma and to a plant for performance of the process. | 02-18-2016 |
20160068399 | METHODS FOR SEPARATING HALOSILANES - Methods for separating halosilanes that involve use of a distillation column having a partition that divides the column into portions for producing three product fractions are disclosed. Methods and systems for producing silane by disproportionation of halosilanes that use such columns and methods for producing polycrystalline silicon are also disclosed. | 03-10-2016 |
20160090307 | SYSTEM AND PROCESS FOR SILANE PRODUCTION - By incorporating an additional TCS and/or DCS redistribution reactor in the TCS recycle loop and/or DCS recycle loop, respectively, of a process and system for silane manufacture, efficiencies in the production of silane are realized. | 03-31-2016 |
20160115036 | METHOD FOR PREPARING A HYDROSILANE USING HETERO ATOM CONTAINING ACTIVATED CARBON - The present invention relates to a method for preparing a hydrosilane using heteroatom-containing activated carbon, more particularly to a method for economically preparing a high-purity hydrosilane by redistribution of a chlorosilane using a heteroatom-containing activated carbon catalyst. | 04-28-2016 |