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    • 3. 发明专利
    • 基板処理装置
    • 基板加工设备
    • JP2015018869A
    • 2015-01-29
    • JP2013143741
    • 2013-07-09
    • 新日鐵住金株式会社Nippon Steel & Sumitomo Metal新日鉄住金マテリアルズ株式会社Nippon Steel Sumikin Materials Co Ltd株式会社日立国際電気Hitachi Kokusai Electric Inc
    • ITO WATARUAISATO TAKASHIHOSHINO TAIZOTACHIKAWA AKIYOSHIHIRAMATSU HIROOSASAKI TAKASHIIMAI YOSHINORIKURIBAYASHI YUKINAGAFUKUDA MASANAO
    • H01L21/205
    • 【課題】基板上に均一なSiCエピタキシャル膜を成膜する。【解決手段】基板上にドープト炭化ケイ素エピタキシャル膜を成膜する処理室と、基板を加熱する加熱部と、基板を回転させる回転機構と、基板の周囲に配置され炭素原子含有ガスと還元ガスとを処理室内へ供給するためのn個(nは3以上の奇数)の第1のガス供給ノズルと、シリコン原子含有ガスを処理室内へ供給するために第1のガス供給ノズルと交互に基板の周囲に配置された(n−1)個の第2のガス供給ノズルと、ドーピングガスを処理室内へ供給するためのドーピングガス供給ノズルと、第1のガス供給ノズルのうち中央のガス供給ノズルの炭素原子含有ガスと還元ガスの流量が、それぞれ、第1のガス供給ノズルのうち端のガス供給ノズルの炭素原子含有ガスと還元ガスの流量よりも大きくなるよう制御する制御部と、を備えるように基板処理装置を構成する。【選択図】図2
    • 要解决的问题:在衬底上沉积均匀的SiC外延膜。解决方案:衬底处理设备包括:用于在衬底上沉积掺杂碳化硅外延膜的处理室; 用于加热衬底的加热部件; 用于旋转衬底的旋转机构; n(n是不少于3的奇数)第一气体供给喷嘴,其布置在所述基板周围,用于向所述处理室供给含有碳原子的气体和还原气体; (n-1)个第二气体供给喷嘴,其与所述第一气体供给喷嘴在所述基板周围交替排列,用于向所述处理室供给含硅原子的气体; 掺杂气体供给喷嘴,用于将掺杂气体供给到所述处理室中; 并且用于控制第一气体供给喷嘴中心处的气体供给喷嘴的含碳原子的气体和还原气体的流量的控制部变得比各碳原子含有气体 气体和第一气体供给喷嘴之间的气体供给喷嘴的还原气体。
    • 5. 发明专利
    • Substrate processing apparatus
    • 基板加工设备
    • JP2014123616A
    • 2014-07-03
    • JP2012278100
    • 2012-12-20
    • Nippon Steel & Sumitomo Metal新日鐵住金株式会社Nippon Steel Sumikin Materials Co Ltd新日鉄住金マテリアルズ株式会社Hitachi Kokusai Electric Inc株式会社日立国際電気
    • ITO WATARUAISATO TAKASHIHOSHINO TAIZOTACHIKAWA AKIYOSHIFUKUDA MASANAOHARA DAISUKESASAKI TAKASHIHIRAMATSU HIROO
    • H01L21/205C23C16/42
    • PROBLEM TO BE SOLVED: To provide a vertical batch type SiC epitaxial growth apparatus properly controlling an impurity concentration of an SiC epitaxial growth film formed on a plurality of substrates.SOLUTION: A substrate processing apparatus includes a processing chamber in which substrates in a horizontal state are vertically arranged at predetermined intervals, a heating unit for heating the substrates stored in the processing chamber, a gas supply unit for supplying a gas into the processing chamber, and an exhaust unit for discharging the gas from the inside of the processing chamber. The gas supply unit includes a first gas supply nozzle having a gas supply hole for supplying a silicon atom-containing gas in the vertical substrate arrangement region, a second gas supply nozzle having a gas supply hole for supplying a carbon atom-containing gas and a reducing gas in the vertical substrate arrangement region, and a doping gas-dedicated nozzle having a gas supply hole for supplying a doping gas in a partial region of the vertical substrate arrangement region, and supplies the doping gas to at least one of the first gas supply nozzle and the second gas supply nozzle.
    • 要解决的问题:提供一种适当地控制形成在多个基板上的SiC外延生长膜的杂质浓度的立方批式SiC外延生长装置。解决方案:基板处理装置包括处理室,其中处于水平状态的基板 以规定的间隔垂直配置,加热单元,用于加热存储在处理室中的基板;气体供给单元,用于向处理室供应气体;以及排气单元,用于从处理室的内部排出气体。 气体供给单元包括具有用于在垂直基板排列区域供给含硅原子的气体的气体供给孔的第一气体供给喷嘴,具有供给含有碳原子的气体的气体供给孔的第二气体供给喷嘴和 以及掺杂气体专用喷嘴,其具有用于在所述垂直基板排列区域的部分区域中供给掺杂气体的气体供给孔,并且将所述掺杂气体供给到所述第一气体中的至少一个 供给喷嘴和第二气体供给喷嘴。
    • 6. 发明专利
    • Method for producing epitaxial silicon carbide wafer
    • 生产外延硅碳化硅的方法
    • JP2013170104A
    • 2013-09-02
    • JP2012035361
    • 2012-02-21
    • Nippon Steel & Sumitomo Metal Corp新日鐵住金株式会社
    • AIGO TAKASHIITO WATARUFUJIMOTO TATSUO
    • C30B29/36C23C16/42C30B25/20H01L21/205
    • PROBLEM TO BE SOLVED: To provide a method capable of producing an epitaxial silicon carbide wafer having a high-quality silicon carbide single crystal thin film with few surface defects or the like even on a silicon carbide single crystal substrate having a small off-angle.SOLUTION: In a method for producing an epitaxial silicon carbide wafer including a device operation layer by epitaxially growing silicon carbide by a CVD method on a silicon carbide single crystal substrate, silicon carbide is once epitaxially grown on the silicon carbide single crystal substrate to form an initial epitaxially-grown layer, and then epitaxial growth is discontinued, and at least the initial epitaxially-grown layer is etched and removed, and silicon carbide is epitaxially grown again, to thereby form the device operation layer.
    • 要解决的问题:提供一种即使在具有小偏角的碳化硅单晶衬底上也能够制造具有几乎没有表面缺陷等的高品质碳化硅单晶薄膜的外延碳化硅晶片的方法。 解决方案:在碳化硅单晶衬底上通过CVD方法通过CVD方法外延生长碳化硅来制造包括器件操作层的外延碳化硅晶片的方法中,一旦在碳化硅单晶衬底上外延生长,形成碳化硅 初始外延生长层,然后外延生长停止,并且至少蚀刻和去除初始外延生长层,并再次外延生长碳化硅,从而形成器件操作层。
    • 7. 发明专利
    • Method for cutting hard brittle ingot
    • 切割硬质玻璃的方法
    • JP2013166193A
    • 2013-08-29
    • JP2012030119
    • 2012-02-15
    • Nippon Steel & Sumitomo Metal Corp新日鐵住金株式会社
    • YASHIRO HIROKATSUFUJIMOTO TATSUOHIRANO YOSHIOTSUGE HIROSHIKATSUNO MASAKAZUSATO SHINYAITO WATARUAIGO TAKASHIMORITA MITSURUOHASHI WATARU
    • B23H5/04B23H5/10B23H7/02B23H7/08B24B27/06B28D5/04H01L21/304
    • PROBLEM TO BE SOLVED: To provide a method for cutting a hard brittle ingot by which the hard brittle ingot can be accurately and efficiently cut even though the ingot to be cut has electrical conductivity or insulation properties and is a high hardness silicon carbide monocrystalline ingot, and furthermore, even if the ingot has a large diameter.SOLUTION: In a method for cutting a hard brittle ingot 1, an electroconductively fixed abrasive grain wire 2 obtained by fixing abrasive grains to a wire body by an electroconductive fixing means is used, and cutting is performed by electric discharge machining when performing the cutting work of the hard brittle ingot. Furthermore, in the method of cutting the hard brittle ingot 1, when the cutting work cannot be performed at the cutting speed of ≥1 mm/h in the electric discharge machining, the application of a voltage to the wire 2 is stopped, the wire 2 is traveled at the speed of ≥100 m/minute and working can be switched to cutting work by machining.
    • 要解决的问题:为了提供一种用于切割硬脆锭的方法,即使要切割的锭具有导电性或绝缘性,并且是高硬度的碳化硅单晶锭,硬脆锭可以被精确和有效地切割, 此外,即使锭具有大的直径。另外,在硬质脆性铸锭1的切断方法中,使用通过导电性固定装置将磨粒固定在线体上而得到的导电固定磨粒线2, 进行硬质脆性坯料的切削加工时,通过放电加工进行切断。 此外,在切削硬脆钢锭1的方法中,当在放电加工中切割速度≥1mm/ h的切削加工不能进行切削加工时,停止向线材2施加电压, 2以≥100米/分钟的速度行驶,通过加工可切换到切割加工。
    • 8. 发明专利
    • Method of producing epitaxial silicon carbide wafer
    • 生产外延硅碳化硅的方法
    • JP2013121898A
    • 2013-06-20
    • JP2011271272
    • 2011-12-12
    • Nippon Steel & Sumitomo Metal Corp新日鐵住金株式会社
    • AIGO TAKASHIITO WATARUFUJIMOTO TATSUO
    • C30B29/36C23C16/42C30B23/08H01L21/205
    • PROBLEM TO BE SOLVED: To provide a method of producing an epitaxial silicon carbide wafer that has a high-quality silicon carbide single crystal thin film with less surface defects and the like, even on a silicon carbide single crystal substrate with small off-angle.SOLUTION: In a method of producing an epitaxial silicon carbide wafer, after a buffer layer is grown on a silicon carbide single crystal substrate and when one device operation layer is grown to have its thickness of 5 to 10 μm, a defect-reducing layer is grown for a predetermined period by lowering an atomic number ratio (C/Si ratio) of carbon to silicon, both contained in a material gas, from a value obtained when the one device operation layer is grown. Thereafter, the other device operation layer is grown while returning the C/Si ratio to the value obtained when the one device operation layer is grown.
    • 要解决的问题:为了提供具有较少表面缺陷等的高质量碳化硅单晶薄膜的外延碳化硅晶片的制造方法,即使在具有小的关闭的碳化硅单晶衬底上 -角度。 解决方案:在制造外延碳化硅晶片的方法中,在碳化硅单晶衬底上生长缓冲层之后,当生长一个器件操作层以使其厚度为5至10μm时, 通过从一个器件操作层生长时获得的值降低材料气体中所含的碳与硅的原子数比(C / Si比)(C / Si比),生长预定时间。 此后,使另一个器件操作层生长,同时将C / Si比率返回到当一个器件操作层生长时获得的值。 版权所有(C)2013,JPO&INPIT
    • 10. 发明专利
    • Method for producing epitaxial silicon carbide wafer
    • 生产外延硅碳化硅的方法
    • JP2014058411A
    • 2014-04-03
    • JP2012203079
    • 2012-09-14
    • Nippon Steel & Sumitomo Metal新日鐵住金株式会社
    • AISATO TAKASHIITO WATARUFUJIMOTO TATSUO
    • C30B29/36C23C16/42C30B25/20H01L21/205
    • PROBLEM TO BE SOLVED: To provide a method that gives a high quality epitaxial silicon carbide wafer having few surface defect in a silicon carbide single crystal film in an epitaxial growth in which a silicon chloride-based raw material gas and a hydrocarbon-based raw material gas are individually introduced as in a method using a vertical-type apparatus.SOLUTION: A method for producing an epitaxial silicon carbide wafer in which a silicon carbide single crystal film is grown epitaxially on a silicon carbide single crystal substrate by a CVD process by introducing a silicon chloride-based raw material gas and a hydrocarbon-based raw material gas individually, carries out the epitaxial growth by starting supplying the hydrocarbon-based raw material gas after supplying the silicon chloride-based raw material gas on the silicon carbide single crystal substrate.
    • 要解决的问题:提供一种在外延生长中提供在碳化硅单晶膜中具有少量表面缺陷的高质量外延碳化硅晶片的方法,其中基于氯化硅的原料气体和基于烃的原料 如使用垂直型装置的方法,单独引入气体。解决方案:一种用于制造外延碳化硅晶片的方法,其中通过CVD工艺在碳化硅单晶衬底上外延生长碳化硅单晶膜,引入 单独的基于氯化硅的原料气体和烃系原料气体,通过在将碳酰氯系原料气体供给到碳化硅单晶基板上之后开始供给烃类原料气体,进行外延生长 。