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7608145 |
Method and apparatus of growing silicon single crystal and silicon wafer fabricated thereby
Disclosed is a method of fabrication of high quality silicon single crystal at high growth rate. The method grows silicon single crystal from silicon melt by Czochralski method, wherein the silicon...
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7605110 |
Ceramic body, ceramic catalyst body and related manufacturing methods
A ceramic body, a ceramic catalyst body, a ceramic catalyst body and related manufacturing methods are disclosed wherein a cordierite porous base material has a surface, formed with acicular...
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7588741 |
Cyclical vacuum chlorination processes, including lithium extraction
Cyclical batch processes for halogenation, such as chlorination, of minerals in a fixed bed using a plurality of cycles which include the steps of at least partially evacuating the bed, charging...
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7528089 |
High solids materials processing
The present invention includes a microporous or mesoporous composition of matter in which the composition is formed continuously or semi-continuously in a heated reactor zone, including a rotary...
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7442355 |
Indium phosphide substrate and indium phosphide monocrystal and method of manufacturing thereof
An indium phosphide substrate for semiconductor devices is obtained as follows. In order to have the direction of growth of the crystal in the <100> orientation, a seed crystal having a...
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7422732 |
Synthesis of amines using molecular sieve SSZ-74
The present invention relates to new crystalline molecular sieve SSZ-74 prepared using a hexamethylene-1,6-bis-(N-methyl-N-pyrrolidinium)dication as a structure-directing agent, and its use in...
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7416714 |
Preparation of hydroxysodalite
The invention is directed to a process and method for forming synthetic hydroxysodalite from nepheline and feldspar and/or nepheline syenite. A caustic material such as a solution of sodium...
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7390359 |
Nitride semiconductor wafer
A nitride semiconductor substrate having properties preferable for the manufacture of various nitride semiconductor devices is made available, by specifying or controlling the local variation in...
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7381392 |
Silicon feedstock for solar cells
The present invention relates to silicon feedstock for producing directionally solidified silicon ingots, thin sheets and ribbons for the production of silicon wafers for PV solar cells where the...
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7378071 |
Silicon wafer and method for producing silicon single crystal
A method for growing a silicon single crystal ingot by a Czochralski method, which is capable of providing silicon wafers having very uniform in-plane quality and which results in improvement of...
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7378076 |
Process for production of macrostructures of a microporous material
The invention involves a process for production of macrostructures of a microporous material. The process is characterized by the fact that seeds formed in or introduced by ion exchange or...
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7374817 |
Topological crystal of transition metal chalcogenide and method of forming the same
Disclosed is a transition-metal chalcogenide crystal having a topological configuration/structure. A micro-droplet of a chalcogen element, such as S, Se or Te, is condensed and circulated in...
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7364618 |
Silicon wafer, method for manufacturing the same and method for growing silicon single crystals
This silicon wafer is obtained from a silicon single crystal grown by the CZ method in a hydrogen-containing inert gas atmosphere, and is a completely grown-in defect-free wafer containing no COPs...
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7344689 |
Silicon wafer for IGBT and method for producing same
A silicon wafer for an IGBT is produced by forming an ingot having an interstitial oxygen concentration [Oi] of not more than 7.0×10 17 atoms/cm 3 by the Czochralski method; doping phosphorus in...
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7338982 |
Functionalized mesoporous silicate structures, and related processes
A mesoporous material is described. It includes a network of interconnected pores within an L3 phase structure. The pores include pore walls of a silicate material functionalized with at least one...
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7326395 |
Method for producing a single crystal and silicon single crystal wafer
The present invention is a method for producing a single crystal in accordance with Czochralski method by flowing an inert gas downward in a chamber 1 of a single crystal-pulling apparatus 11 ...
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7318916 |
Semiconductive GaAs wafer and method of making the same
A semiconductive GaAs wafer has a diameter of 4 inches or more, and an in-wafer plane dislocation density of 30,000/cm 2 or more and 100,000/cm 2 or less. A semiconductive GaAs wafer is made by...
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7311888 |
Annealed wafer and method for manufacturing the same
The present invention provides an annealed wafer which has a wafer surface layer serving as a device fabricating region and having an excellent oxide film dielectric breakdown characteristic, and a...
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7294324 |
Low basal plane dislocation bulk grown SiC wafers
A high quality single crystal wafer of SiC is disclosed. The wafer has a diameter of at least about 3 inches (75 mm) and at least one continuous square inch (6.25 cm 2 ) of surface area that has a...
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7282190 |
Silicon layer production method and solar cell production method
A solar cell is produced by dipping a multicrystalline silicon substrate 28 in a solution 24 containing silicon, growing a silicon layer on the substrate 28 while decreasing with time the...
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7276219 |
Preparation of 157nm transmitting barium fluoride crystals with permeable graphite
The present invention is directed to a method of making large diameter metal fluoride sungle crystals that can be used in optical lithograpby systems, for example, excimer laser that operate below...
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7232555 |
AIGaInN single-crystal wafer
AlGaInN single-crystal wafer with alleviated cracking and improved utilization rate and cost effectiveness. A hexagonal Al x Ga y In 1−(x+y) N(0<x≦1, 0≦y<1, x+y≦1) single-crystal...
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7232481 |
Method to produce an anti-swelling mica
A method to produce an anti-swelling mica having following steps:
mixing powdery mica with an alkaline compound to form a mixture; heating the mixture at a temperature between 150°...
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7226571 |
High resistivity silicon wafer and method for fabricating the same
A high resistivity p type silicon wafer with a resistivity of 100 Ωcm or more, in the vicinity of the surface being formed denuded zone, wherein when a heat treatment in the device fabrication...
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7201885 |
Method of removing heavy metals from silicate sources during silicate manufacturing
Methods for the removal of lead from a metal silicate during the process of manufacturing of such a material are provided. With the reliance upon lower cost starting silicon dioxide starting...
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7166265 |
Process for the assembly of ultrastable mesostructured organofunctional silica compositions
A process for the preparation of mesostructured organofunctional silica and silica-alumina compositions using a hydrolyzable organosilane compound is described. The process uses a water soluble...
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7148169 |
Mullite-rich calcined kaolin compositions and methods for improved casting rates in cast ceramic bodies
A method of method of making a formed ceramic body, comprising casting or jiggering a composition comprising a mullite-rich calcined kaolin obtained from a hydrous kaolin. Also provided is a method...
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7128892 |
Process of forming ultrastable porous aluminosilicate structures
Mesoporous hexagonal, cubic, lamellar, wormhole, or cellular foam aluminosilicates, gallosilicates and titanosilicates derived from protozeolitic seeds using an ionic structure directing agent are...
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7125532 |
Process for the manufacture of dispersible alumino-silicates
Process for the manufacture of high-purity alumino-silicates which are dispersible in aqueous and/or aqueous-acidic media by hydrolysis of aluminum compounds and organosilicon compounds.
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7097818 |
Silica and silicate by precipitation at constant alkali number, and its use
Precipitated silica or silicates, obtainable by acid precipitation of aqueous silicate solutions while maintaining a constant alkali number of at least 1.
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7094390 |
Macrostructures of porous inorganic material and process for their preparation
There is provided macrostructures of porous inorganic material which can have controlled size, shape, and/or porosity and a process for preparing the macrostructures. The macrostructures comprise a...
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7060239 |
Quasicrystalline alloys and their use as coatings
The present invention relates to an icosahedral, quasicrystalline compound or compound present in the form of an approximant having the nominal composition: Ti v Cr w Al x Si y O z , in which...
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7052665 |
Method of preparing highly ordered mesoporous molecular sieves
Highly ordered mesoporous silica molecular materials are prepared using sodium silicate as a silica source, sulfuric acid and nonionic poly(alkylene oxide) surfactants or nonionic amphiphilic bloc...
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7041274 |
Aluminosilicate compositions, preparation and use
A metalloaluminosilicate composition includes an aluminosilicate composition having an aluminosilicate framework and containing at least one metal, wherein a substantial portion of the metal is...
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7029642 |
Crystalline solid UVL-1 and a process for hydroconverting/hydrocracking hydrocarbon feeds
The invention concerns a novel crystalline solid UVL-1 which has an X ray diffraction diagram containing at least the following characteristic peaks:
d hkl (A) 2theta (°) I/I 0 11.69 7.55 mw...
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7025948 |
ITQ-31 crystalline solid, and a process for its preparation
The invention concerns a crystalline solid, designated ITQ-31, which has the X ray diffraction diagram given below. Said solid has a chemical composition, expressed as the anhydrous base in terms...
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7014827 |
Synthesis of silicoaluminophosphates
Disclosed is a method for the manufacture of silicoaluminophosphate (SAPO) and/or aluminophosphate (ALPO) molecular sieves. The method includes maintaining the slurry of the as crystallized...
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7005118 |
Synthetic mesoporous material with radially assembled nanotubes
This invention relates to a new composition of high surface area materials suitable for adsorption of both organic and inorganic species and as a component of catalysts useful for the...
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6974889 |
Processes for manufacture of molecular sieves
Colloidal crystalline molecular sieve seeds are used in phosphorus-containing crystalline molecular sieve manufacture. Certain of the products have enhanced utility in oxygenate conversions.
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6969502 |
Method and device for growing large-volume oriented monocrystals
In the method for growing large-volume monocrystals crystal raw material is heated in a melting vessel with heating elements to a temperature above its melting point until a melt is formed. A...
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6953767 |
Silicoaluminophosphate molecular sieve
The present invention relates to a silicoaluminophosphate molecular sieve comprising at least one intergrown phase of molecular sieves having AEI and CHA framework types, wherein said intergrown...
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6908604 |
Macrostructures of porous inorganic material and process for their preparation
There is provided macrostructures of porous inorganic material which can have controlled size, shape, and/or porosity and a process for preparing the macrostructures. The macrostructures comprise a...
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6902618 |
Silicon single crystal wafer having void denuded zone on the surface and diameter of above 300 mm and its production method
The present invention provides a silicon single crystal wafer having a diameter of 300 mm or more and having a defect-free layer containing no COP for a depth of 3 μm or more from a surface and a...
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6890600 |
SiC single crystal, method for manufacturing SiC single crystal, SiC wafer having an epitaxial film, method for manufacturing SiC wafer having an epitaxial film, and SiC electronic device
A refined SiC single crystal that includes a small number of defects is provided as follows. At a first growth step, a first seed crystal is formed from a crude SiC single crystal, and a first...
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6890502 |
Synthetic clay compositions and methods for making and using
Selected smectites may be synthesized from a wide variety of components. Morphology, purity, size, and/or shape of the selected smectite may be controlled by mixing the clay smectite formatives,...
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6869906 |
Ultrastable porous aluminosilicate structures
Mesoporous hexagonal, cubic, lamellar, wormhole, or cellular foam aluminosilicates, gallosilicates and titanosilicates derived from protozeolitic seeds using an ionic structure directing agent are...
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6866925 |
Mesostructured material incorporating particles of nanometric dimensions
The invention concerns a heat-stable ordered mesoporous or mesostructured material comprising a mineral phase wherein are dispersed particles of nanometric dimension at least partly crystaline, the...
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6849241 |
Device and method for depositing one or more layers on a substrate
The invention relates to a device and method for depositing one or more layers onto at least one substrate placed inside a reaction chamber. The layers are deposited while using a liquid or solid...
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6845329 |
Process for determining a zeolite structure and its corresponding adsorption isotherm
Applicant has developed a method for predicting the structure of a zeolite including the cation positions and distributions. The method comprises using combinatorial minimization and molecular...
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6843977 |
Ultrastable porous aluminosilicate structures and compositions derived therefrom
Porous hexagonal, cubic, lamellar, wormhole, or cellular foam aluminosilicates, gallosilicates and titanosilicates derived from protozeolitic seeds or zeolite fragments using an organic porogen...
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