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45results about How to "Minimized impurity" patented technology
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Semiconductor integrated circuit device
InactiveUS20080157157A1High operation speedLow power consumptionTransistorSolid-state devicesPhysicsSulfur dioxide
A DRAM capacitor uses ruthenium or ruthenium oxide as an upper electrode and hafnium dioxide or zirconium oxide as an insulation layer. The DRAM capacitor is intended to suppress diffusion of ruthenium, etc. into hafnium dioxide. Tantalum pentoxide or niobium oxide having a higher permittivity than that of the insulation layer is inserted as a cap insulation layer to the boundary between the upper electrode of ruthenium or ruthenium oxide and the insulation layer of hafnium dioxide or zirconium oxide to thereby suppress diffusion of ruthenium, etc. into hafnium dioxide, etc.
Owner:HITACHI LTD
Semiconductor devices having different gate dielectrics and methods for manufacturing the same
InactiveUS20050098839A1High speedMinimize leakage currentSemiconductor/solid-state device manufacturingSemiconductor devicesEngineeringSemiconductor
A semiconductor device includes first and second transistor devices. The first device includes a first substrate region, a first gate electrode, and a first gate dielectric. The first gate dielectric is located between the first substrate region and the first gate electrode. The second device includes a second substrate region, a second gate electrode, and a second gate dielectric. The second gate dielectric is located between the second substrate region and the second gate electrode. The first gate dielectric includes a first high-k layer having a dielectric constant of 8 or more. Likewise, the second gate dielectric includes a second high-k layer having a dielectric constant of 8 or more. The second high-k layer has a different material composition than the first high-k layer.
Owner:SAMSUNG ELECTRONICS CO LTD
Method and apparatus for copper film quality enhancement with two-step deposition
InactiveUS20060105565A1Improve film qualityImprove performanceSemiconductor/solid-state device manufacturingSemiconductor devicesSputter depositionElectrochemistry
The disclosure relates to a method and apparatus for enhancing copper film quality with a two-step deposition. The two step deposition may include depositing a first copper film by electrochemical plating, annealing the first copper film at a desired temperature for a duration of time to remove any impurities, depositing a second copper film and annealing the second copper film for a duration of time to remove impurities. The second copper film can be deposited by electrochemical plating without HCl / C-based additive. The second copper film can also be deposited by sputtering to avoid impurities including C, Cl and S.
Owner:TAIWAN SEMICON MFG CO LTD
Method and apparatus for copper film quality enhancement with two-step deposition
InactiveUS7189650B2Improve performanceLower performance requirementsSemiconductor/solid-state device manufacturingSemiconductor devicesCopperSputter deposition
The disclosure relates to a method and apparatus for enhancing copper film quality with a two-step deposition. The two step deposition may include depositing a first copper film by electrochemical plating, annealing the first copper film at a desired temperature for a duration of time to remove any impurities, depositing a second copper film and annealing the second copper film for a duration of time to remove impurities. The second copper film can be deposited by electrochemical plating without HCl / C-based additive. The second copper film can also be deposited by sputtering to avoid impurities including C, Cl and S.
Owner:TAIWAN SEMICON MFG CO LTD
Fluoride-containing coating and coated member
ActiveUS20040126614A1Efficient coatingMinimizing introductionMolten spray coatingVacuum evaporation coatingHalogenSpace group
A Group IIIA element fluoride-containing coating comprising a Group IIIA element fluoride phase which contains at least 50% of a crystalline phase of the orthorhombic system belonging to space group Pnma is formed on a member for imparting corrosion resistance so that the member may be used in a corrosive halogen species-containing atmosphere. When the state of a crystalline phase is properly controlled, the coating experiences only a little color change by corrosion. A Group IIIA element fluoride-containing coating having a micro-Vickers hardness Hv of at least 100 is minimized in weight loss by-corrosion.
Owner:SHIN ETSU CHEM IND CO LTD
Fluoride-containing coating and coated member
ActiveUS7462407B2Reduce pressureEfficient coatingMolten spray coatingVacuum evaporation coatingHalogenSpace group
Owner:SHIN ETSU CHEM CO LTD
Semiconductor devices having different gate dielectrics and methods for manufacturing the same
ActiveUS7586159B2Reduce negative impactIncrease speedTransistorSolid-state devicesGate dielectricDevice material
Owner:SAMSUNG ELECTRONICS CO LTD
Method Of Purifying Organosilicon Compositions Used As Precursors In Chemical Vapor Desposition
InactiveUS20080188679A1Readily reducing levelLower potentialSilicon organic compoundsGas phaseChemical vapor deposition
The present invention provides a method for purifying an organosilicon composition comprising an alkoxysilane or a carboxysilane and a basic impurity, the method comprising the steps of: contacting the organosilicon composition with an acid gas to form a precipitate comprising a salt of the acid gas upon reaction with the basic impurity; and removing the salt of the acid gas to form a purified organosilicon product.
Owner:VERSUM MATERIALS US LLC
Method for manufacturing high pressure discharge lamp, high pressure discharge lamp manufactured using the method, lamp unit, and image display device
InactiveUS20060035558A1Facilitated ionizationEasily expelledSpark gapsElectric lighting sourcesDevitrificationHydrogen
A method for manufacturing a high pressure mercury lamp having a high pressure resistance strength includes an electric field application step of applying an electric field to at least a light emitting part while keeping the high pressure mercury lamp at a high temperature. As a result of the electric field application step, impurities such as hydrogen and an alkali metal existing in a discharge space and in glass used for forming the light emitting part (1) and sealing parts (2) can be reduced, with it being possible to suppress blackening and devitrification during lighting.
Owner:PANASONIC CORP
Conversion of oxycodone base to oxycodone hydrochloride
Synthetic methods are provided for preparation of oxycodone and salts thereof with an improved impurity profile. Thebaine is converted to 14-hydroxycodeinone sulfate intermediate to minimize a 7,8-dihydro-8,14-dihydroxycodeinone impurity. Efficient methods for conversion of oxycodone base to oxycodone hydrochloride are provided to minimize 14-hydroxycodeinone impurity in the final product.
Owner:CODY LAB
High-Purity Gas Production Apparatus and Production Method Therefor
ActiveUS20150284247A1Increase flexibilityIncrease operate variableHydrogen separation using solid contactHydrogen/synthetic gas productionSorptionChemistry
The present invention relates to an apparatus that produces a high-purity gas of producing a high-purity gas using the apparatus. An apparatus for producing a high-purity gas according to an embodiment of the invention may include a column configured to perform a sorption-enhanced reaction for removing a reaction by-product produced through a catalyst reaction by using sorption, wherein the column is divided into a plurality of sections, and the plurality of sections have decreasing proportions of a catalyst and increasing proportions of an adsorbent from a front end towards a rear end along a reaction path, and wherein the sorption-enhanced reaction is a sorption-enhanced steam methane reforming (SE-SMR) reaction for producing hydrogen by a methane reforming reaction and removing a by-product of carbon dioxide.According to an embodiment of the invention, a multi-section column may be applied to obtain an increased amount of gas production compared with the conventional sorption-enhanced reaction, even with the same amounts of catalyst and adsorbent.
Owner:KOREA UNIV RES & BUSINESS FOUND
Process for the preparation of magnesia (MgO)
InactiveUS20070219081A1High yieldReduce the presence of impuritiesMolecular sieve catalystsCalcium/strontium/barium chloridesPhysical chemistryCarnallite
The present invention provides an improved process for the preparation of MgO of high purity >99% from salt bitterns via intermediate formation of Mg(OH)2 obtained from the reaction of MgCl2 and lime, albeit indirectly, i.e., MgCl2 is first reacted with NH3 in aqueous medium and the slurry is then filtered with ease. The resultant NH4Cl-containing filtrate is then treated with any lime, to regenerate NH3 while the lime itself gets transformed into CaCl2 that is used for desulphatation of bittern so as to recover carnallite and thereafter MgCl2 of desired quality required in the present invention. The crude Mg(OH)2 is dried and calcined directly to produce pure MgO, taking advantage of the fact that adhering impurities in the Mg(OH)2 either volatilize away or get transformed into the desired product, i.e., MgO.
Owner:COUNCIL OF SCI & IND RES
Synthesis of 4-[1-(4-cyano phenyl)-(1,2,4-triazol-1-yl)methyl] benzonitrile and 4-[1-(1H-1,2,4-triazol-1-yl)methylene benzonitrile intermediate
The present invention relates to a process for the preparation of 4-[1-(4-cyano phenyl)-1-(1,2,4-triazol-1-yl)methyl]benzonitrile (letrozole), substantially free from its isomeric impurity. The preparation involves reaction of 4-[1-(1H-1,2,4-triazol-1-yl)methylene benzonitrile with 4-fluorobenzonitrile in the presence of an organic solvent and a silicon amine. The present invention also relates to a process for the preparation of 4-[1-(1H-1,2,4-triazol-1-yl)methylene benzonitrile which involves: (a) the reaction of a 4-halomethyl benzonitrile with 1,2,4-triazole in the presence of cesium carbonate and an organic solvent to obtain a reaction mass comprising 4-[1-(1,2,4-triazole-1-yl)methyl]benzonitrile of formula II; and (b) precipitation of 4-[1-(1,2,4-triazole-1-yl)methyl]benzonitrile (II) from the reaction mass using a suitable organic solvent.
![Synthesis of 4-[1-(4-cyano phenyl)-(1,2,4-triazol-1-yl)methyl] benzonitrile and 4-[1-(1H-1,2,4-triazol-1-yl)methylene benzonitrile intermediate](https://images-eureka-patsnap-com.libproxy1.nus.edu.sg/patent_img/5b9704e2-1137-4d12-948b-3793bdf421bb/US20090270633A1-20091029-C00001.png "Synthesis of 4-[1-(4-cyano phenyl)-(1,2,4-triazol-1-yl)methyl] benzonitrile and 4-[1-(1H-1,2,4-triazol-1-yl)methylene benzonitrile intermediate")
![Synthesis of 4-[1-(4-cyano phenyl)-(1,2,4-triazol-1-yl)methyl] benzonitrile and 4-[1-(1H-1,2,4-triazol-1-yl)methylene benzonitrile intermediate](https://images-eureka-patsnap-com.libproxy1.nus.edu.sg/patent_img/5b9704e2-1137-4d12-948b-3793bdf421bb/US20090270633A1-20091029-C00002.png "Synthesis of 4-[1-(4-cyano phenyl)-(1,2,4-triazol-1-yl)methyl] benzonitrile and 4-[1-(1H-1,2,4-triazol-1-yl)methylene benzonitrile intermediate")
![Synthesis of 4-[1-(4-cyano phenyl)-(1,2,4-triazol-1-yl)methyl] benzonitrile and 4-[1-(1H-1,2,4-triazol-1-yl)methylene benzonitrile intermediate](https://images-eureka-patsnap-com.libproxy1.nus.edu.sg/patent_img/5b9704e2-1137-4d12-948b-3793bdf421bb/US20090270633A1-20091029-C00003.png "Synthesis of 4-[1-(4-cyano phenyl)-(1,2,4-triazol-1-yl)methyl] benzonitrile and 4-[1-(1H-1,2,4-triazol-1-yl)methylene benzonitrile intermediate")
Owner:CIPLA LTD
Method for manufacturing high pressure discharge lamp, high pressure discharge lamp manufactured using the method, lamp unit, and image display device
InactiveUS7530874B2Quantity minimizationSuppress and devitrificationElectric lighting sourcesTube/lamp factory adjustmentDevitrificationHydrogen
Owner:PANASONIC CORP
Process for preparation of darunavir
ActiveUS20150203506A1Simple and cost-effective processHigh purityOrganic chemistry methodsAntiviralsPropionateDarunavir+Ritonavir
Provided are a process for preparation of darunavir or solvates or a pharmaceutically acceptable salt thereof substantially free of bisfuranyl impurities and a process for preparation of amorphous darunavir using the darunavir propionate solvate.
Owner:LAURUS LABS
Stabilizer link
ActiveUS20150174978A1Improve sealingReduce tensionCouplings for rigid shaftsInterconnection systemsEngineeringFrictional resistance
A stabilizer link apparatus may include ball studs having balls at terminals thereof, a link having ball sockets at upper and lower ends thereof, the balls being rotatably accommodated in the ball sockets, dust covers assembled between circumferences of the ball sockets and middle sections of the ball studs, the dust covers preventing impurities from invading the ball sockets, and friction-providing unit engaged between the ball stud and the link, wherein the friction-providing unit provide predetermined amounts of rotating frictional resistance to the ball studs when the ball studs rotate with respect to the link such that the rotating frictional resistance of the ball stud at the lower end of the link is greater than the rotating frictional resistance of the ball stud at the upper end of the link.
Owner:HYUNDAI MOTOR CO LTD
Alumina and carbonate production method from AI-rich materials with integrated CO2 utilization
ActiveUS9963352B2Safely commercializedSafely depositedCalcium/strontium/barium carbonatesProductsChemical treatmentMetal chloride
A process for alumina and carbonate production from aluminium rich materials with integrated CO2 utilization, comprising: comminuting and leaching Al-rich materials in concentrated HCl; separating unreacted material from metal chloride solution; separating Al3+ from solution by crystallization of AlCl3.6H2O; calcination of AlCl3.6H2O with HCl recovery; precipitation of metal carbonates from CO2; regeneration of HCl and extractive amines; the Al3+ separation the facilitated by increasing HCl concentration; the calcination being performed in two steps, one in the range 400 and 600° C. to generate a HCl-rich gas and one above 600° C. to produce Al2O3; for precipitating metal carbonates, mixing the metal chloride solution with an organic solution containing a selected amine and contacting the mixture with a CO2-containing gas, thereby also extracting HCl by formation of an ammonium chloride salt complex; processing thermally or chemically the organic solution to regenerate the amine for recirculation.
Owner:NORDIC MINING +1
ALUMINA AND CARBONATE PRODUCTION METHOD FROM Al-RICH MATERIALS WITH INTEGRATED CO2 UTILIZATION
ActiveUS20170015564A1Enhanced recoveryImprove economicsCalcium/strontium/barium carbonatesProductsCarbon dioxideMetal chloride
A process for alumina and carbonate production from aluminium rich materials with integrated CO2 utilization, comprising: comminuting and leaching Al-rich materials in concentrated HCI; separating unreacted material from metal chloride solution; separating Al3+ from solution by crystallization of AlCl3.6H2O; calcination of AlCl3.6H2O with HCl recovery; precipitation of metal carbonates from CO2; regeneration of HCl and extractive amines; the Al3+ separation the facilitated by increasing HCl concentration; the calcination being performed in two steps, one in the range 400 and 600° C. to generate a HCl-rich gas and one above 600° C. to produce Al2O3; for precipitating metal carbonates, mixing the metal chloride solution with an organic solution containing a selected amine and contacting the mixture with a CO2-containing gas, thereby also extracting HCl by formation of an ammonium chloride salt complex; processing thermally or chemically the organic solution to regenerate the amine for recirculation.
Owner:NORDIC MINING +1
Method and materials to deplete impurities for extraction and purification of nucleic acids from stool
ActiveUS20160333393A1Minimized impurityIncrease concentrationMicrobiological testing/measurementDNA preparationOrganic chemistryBiological organism
Provided herein is materials and method relating to nucleic acids extraction and purification from biological samples such as stool. In particular, binding protein(s) is used to facilitate the extraction and purification of nucleic acids from stool samples, more specifically, depleting and blocking inhibitors and impurities from stool samples and resulting in a highly concentrated and purified nucleic acids preparation.
Owner:GLC BIOTECH
Method for Oligomerizing Olefins
ActiveUS20200308082A1High yield and puritySuppress side reactionOrganic-compounds/hydrides/coordination-complexes catalystsChemical industryComposite materialAlkene
The present invention relates to a method for oligomerizing olefins, including the steps of: carrying out an oligomerization reaction of olefins by injecting an oligomerization transition metal catalyst, a cocatalyst, an olefin monomer and a solvent into a reactor; and injecting, into the reaction product of the oligomerization reaction, a catalyst inactivator including a gaseous inorganic material that contains oxygen.
Owner:SK GEO CENTRIC CO LTD +1
Exposure apparatus and purging method for the same
InactiveUS7030960B2Exhaust fastDrop in speedSemiconductor/solid-state device manufacturingPhotomechanical exposure apparatusControl systemSingle exposure
Disclosed is an exposure apparatus including an exposure light source, an optical system, a casing, a gas replacing system, and a control system. The optical system directs exposure light from the exposure light source to a photosensitive substrate. The casing accommodates therein at least one optical element of the optical system. The gas replacing system supplies a purge gas into the casing to replace a gas inside the casing with the purge gas. The control system controls the gas replacing system so as to increase a flow rate of the purge gas if a predetermined time elapses after an exposure is completed and before a next exposure starts.
Owner:CANON KK
Method for producing three-dimensionally layered shaped bodies
ActiveUS20200139427A1Free easilySharp contourAdditive manufacturing apparatusFoundry mouldsFurfuryl alcoholPolymer chemistry
The invention relates to a method for producing three-dimensionally layered shaped bodies by means of layer-by-layer construction using a resin component which contains at least one furane resin, and more than 5% by weight and less than 50% by weight monomer furfuryl alcohol, and an acid. The shaped bodies produced in this manner are suitable inter alia as casting molds and casting cores for metal casting.
Owner:ASK CHEM LP
Synthesis of 4-[1-(4-cyano phenyl)-(1,2,4-triazol-1-yl)methyl] benzonitrile and 4-[1-(1H-1,2,4-triazol-1-yl)methylene benzonitrile intermediate
InactiveUS8003804B2Improve reaction speedMinimized impurityOrganic chemistryOrganic solventBenzonitrile
The present invention relates to a process for the preparation of 4-[1-(4-cyano phenyl)-1-(1,2,4-triazol-1-yl)methyl]benzonitrile (letrozole), substantially free from its isomeric impurity. The preparation involves reaction of 4-[1-(1H-1,2,4-triazol-1-yl)methylene benzonitrile with 4-fluorobenzonitrile in the presence of an organic solvent and a silicon amine. The present invention also relates to a process for the preparation of 4-[1-(1H-1,2,4-triazol-1-yl)methylene benzonitrile which involves: (a) the reaction of a 4-halomethyl benzonitrile with 1,2,4-triazole in the presence of cesium carbonate and an organic solvent to obtain a reaction mass comprising 4-[1-(1,2,4-triazole-1-yl)methyl]benzonitrile of formula II; and (b) precipitation of 4-[1-(1,2,4-triazole-1-yl)methyl]benzonitrile (II) from the reaction mass using a suitable organic solvent.
![Synthesis of 4-[1-(4-cyano phenyl)-(1,2,4-triazol-1-yl)methyl] benzonitrile and 4-[1-(1H-1,2,4-triazol-1-yl)methylene benzonitrile intermediate](https://images-eureka-patsnap-com.libproxy1.nus.edu.sg/patent_img/e0db9df2-2861-4b2d-8c00-3fa1f786c30b/US08003804-20110823-C00001.png "Synthesis of 4-[1-(4-cyano phenyl)-(1,2,4-triazol-1-yl)methyl] benzonitrile and 4-[1-(1H-1,2,4-triazol-1-yl)methylene benzonitrile intermediate")
![Synthesis of 4-[1-(4-cyano phenyl)-(1,2,4-triazol-1-yl)methyl] benzonitrile and 4-[1-(1H-1,2,4-triazol-1-yl)methylene benzonitrile intermediate](https://images-eureka-patsnap-com.libproxy1.nus.edu.sg/patent_img/e0db9df2-2861-4b2d-8c00-3fa1f786c30b/US08003804-20110823-C00002.png "Synthesis of 4-[1-(4-cyano phenyl)-(1,2,4-triazol-1-yl)methyl] benzonitrile and 4-[1-(1H-1,2,4-triazol-1-yl)methylene benzonitrile intermediate")
![Synthesis of 4-[1-(4-cyano phenyl)-(1,2,4-triazol-1-yl)methyl] benzonitrile and 4-[1-(1H-1,2,4-triazol-1-yl)methylene benzonitrile intermediate](https://images-eureka-patsnap-com.libproxy1.nus.edu.sg/patent_img/e0db9df2-2861-4b2d-8c00-3fa1f786c30b/US08003804-20110823-C00003.png "Synthesis of 4-[1-(4-cyano phenyl)-(1,2,4-triazol-1-yl)methyl] benzonitrile and 4-[1-(1H-1,2,4-triazol-1-yl)methylene benzonitrile intermediate")
Owner:CIPLA LTD
Stabilizer link
ActiveUS9302560B2Reduce tensionImprove sealingInterconnection systemsPivotal connectionsFrictional resistanceEngineering
Owner:HYUNDAI MOTOR CO LTD
Apparatus for attaching seed
InactiveUS20140082916A1Adhesive strengthImprove production yieldPolycrystalline material growthFrom frozen solutionsEngineering
Owner:LG INNOTEK CO LTD
Method for producing three-dimensionally layered shaped bodies
ActiveUS11253912B2Sharp contourReadily freedAdditive manufacturing apparatusFoundry mouldsPolymer scienceCasting mold
The invention relates to a method for producing three-dimensionally layered shaped bodies by means of layer-by-layer construction using a resin component which contains at least one furane resin, and more than 5% by weight and less than 50% by weight monomer furfuryl alcohol, and an acid. The shaped bodies produced in this manner are suitable inter alia as casting molds and casting cores for metal casting.
Owner:ASK CHEM LP
Cigs light-absorbing ink and method for preparing cigs light-absorbing layer
InactiveUS20150132885A1Minimizes consumption of metalExcellent in termFinal product manufactureSemiconductor/solid-state device manufacturingCarbon impuritiesMaterials science
The present invention relates to a method for preparing a CIS- or CIGS-based light-absorbing layer which is included in a thin film solar cell. More particularly, the present invention relates to a method for preparing a CIS- or CIGS-based light-absorbing layer which ultimately improves the efficiency of a solar cell since the remaining carbon impurities in the formed light-absorbing layer are minimized and additional sulfurization treatment or selenium treatment is made optional, not requisite.
Owner:GS CALTEX CORP
Process for preparation of Darunavir
ActiveUS9475821B2Simple and cost-effective processHigh purityOrganic chemistry methodsAntiviralsPropionateMedicinal chemistry
Provided are a process for preparation of darunavir or solvates or a pharmaceutically acceptable salt thereof substantially free of bisfuranyl impurities and a process for preparation of amorphous darunavir using the darunavir propionate solvate.
Owner:LAURUS LABS
Solvent Extraction Process
ActiveUS20150240330A1Good extractantsMinimized impuritySolvent extractionTransuranic element compoundsSulfateChloride
A process for extracting uranium from an acidic uranium, chloride, iron and sulphate containing solution, including the steps: a. contacting the solution with an organic phase containing a trialkylphosphine oxide to form a uranium loaded organic phase; b. scrubbing the uranium loaded organic phase to remove any impurities and form a scrubbed organic phase; c. stripping the scrubbed organic phase with an acidic sulphate solution to produce an aqueous uranium strip solution; and precipitating a uranium product from the aqueous uranium strip solution.
Owner:BHP OLYMPIC DAM CORP PTY LTD
Rail vehicle comprising an engine compartment and at least one driver's cab, and method for generating overpressure in the engine compartment
ActiveUS10518787B2Increase airflowReduce stressAir-treating devicesRailway heating/coolingGuidance systemOverpressure
In order to optimize the failure safety of electrical and electronic components located in an engine compartment of a rail vehicle, which additionally comprises at least one driver's cab, the rail vehicle is operated with an air conditioning system, which is provided to generate overpressure in the engine compartment and to control the climate of the at least one driver's cab. The air conditioning system includes a first air guidance system to introduce fresh air into the at least one driver's cab and a second air guidance system to transmit at least one part of the fresh air introduced into the at least one driver's cab into the engine compartment.
Owner:BOMBARDIER TRANSPORTATION GMBH
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