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    • 1. 发明授权
    • Methods to fabricate MOSFET devices using selective deposition process
    • 使用选择性沉积工艺制造MOSFET器件的方法
    • US07132338B2
    • 2006-11-07
    • US10845984
    • 2004-05-14
    • Arkadii V. SamoilovYihwan KimErrol SanchezNicholas C. Dalida
    • Arkadii V. SamoilovYihwan KimErrol SanchezNicholas C. Dalida
    • H01L21/336
    • H01L21/823814H01L21/0245H01L21/0251H01L21/02529H01L21/02532H01L21/02576H01L21/02579H01L21/0262H01L21/02636H01L21/28044H01L21/28114H01L21/823807H01L29/165H01L29/66242H01L29/665H01L29/66545H01L29/6656H01L29/66628H01L29/66636H01L29/78H01L29/7834H01L29/7848
    • In one embodiment, a method for fabricating a silicon-based device on a substrate surface is provided which includes depositing a first silicon-containing layer by exposing the substrate surface to a first process gas comprising Cl2SiH2, a germanium source, a first etchant and a carrier gas and depositing a second silicon-containing layer by exposing the first silicon-containing layer to a second process gas comprising SiH4 and a second etchant. In another embodiment, a method for depositing a silicon-containing material on a substrate surface is provided which includes depositing a first silicon-containing layer on the substrate surface with a first germanium concentration of about 15 at % or more. The method further provides depositing on the first silicon-containing layer a second silicon-containing layer wherein a second germanium concentration of about 15 at % or less, exposing the substrate surface to air to form a native oxide layer, removing the native oxide layer to expose the second silicon-containing layer, and depositing a third silicon-containing layer on the second silicon-containing layer. In another embodiment, a method for depositing a silicon-containing material on a substrate surface is provided which includes depositing epitaxially a first silicon-containing layer on the substrate surface with a first lattice strain, and depositing epitaxially on the first silicon-containing layer a second silicon-containing layer with a second lattice strain greater than the first lattice strain.
    • 在一个实施例中,提供了一种在衬底表面上制造硅基器件的方法,其包括通过将衬底表面暴露于包含Cl 2 SiH 2的第一工艺气体来沉积第一含硅层, 锗源,第一蚀刻剂和载气,并且通过将第一含硅层暴露于包含SiH 4 N 2的第二工艺气体而沉积第二含硅层, 和第二蚀刻剂。 在另一个实施例中,提供了一种用于在衬底表面上沉积含硅材料的方法,其包括以约15at%或更多的第一锗浓度在衬底表面上沉积第一含硅层。 该方法进一步提供了在第一含硅层上沉积第二含硅层,其中第二锗浓度为约15原子%或更低,将基底表面暴露于空气中以形成天然氧化物层,将天然氧化物层去除 暴露第二含硅层,并在第二含硅层上沉积第三含硅层。 在另一个实施例中,提供了一种用于在衬底表面上沉积含硅材料的方法,其包括以第一晶格应变在衬底表面上外延沉积第一含硅层,并且在第一含硅层上外延沉积 第二含硅层具有大于第一晶格应变的第二晶格应变。
    • 9. 发明申请
    • Methods to fabricate MOSFET devices using selective deposition process
    • 使用选择性沉积工艺制造MOSFET器件的方法
    • US20050079692A1
    • 2005-04-14
    • US10845984
    • 2004-05-14
    • Arkadii SamoilovYihwan KimErrol SanchezNicholas Dalida
    • Arkadii SamoilovYihwan KimErrol SanchezNicholas Dalida
    • H01L21/20H01L21/205H01L21/28H01L21/331H01L21/336H01L21/8238H01L21/36
    • H01L21/823814H01L21/0245H01L21/0251H01L21/02529H01L21/02532H01L21/02576H01L21/02579H01L21/0262H01L21/02636H01L21/28044H01L21/28114H01L21/823807H01L29/165H01L29/66242H01L29/665H01L29/66545H01L29/6656H01L29/66628H01L29/66636H01L29/78H01L29/7834H01L29/7848
    • In one embodiment, a method for fabricating a silicon-based device on a substrate surface is provided which includes depositing a first silicon-containing layer by exposing the substrate surface to a first process gas comprising Cl2SiH2, a germanium source, a first etchant and a carrier gas and depositing a second silicon-containing layer by exposing the first silicon-containing layer to a second process gas comprising SiH4 and a second etchant. In another embodiment, a method for depositing a silicon-containing material on a substrate surface is provided which includes depositing a first silicon-containing layer on the substrate surface with a first germanium concentration of about 15 at % or more. The method further provides depositing on the first silicon-containing layer a second silicon-containing layer wherein a second germanium concentration of about 15 at % or less, exposing the substrate surface to air to form a native oxide layer, removing the native oxide layer to expose the second silicon-containing layer, and depositing a third silicon-containing layer on the second silicon-containing layer. In another embodiment, a method for depositing a silicon-containing material on a substrate surface is provided which includes depositing epitaxially a first silicon-containing layer on the substrate surface with a first lattice strain, and depositing epitaxially on the first silicon-containing layer a second silicon-containing layer with a second lattice strain greater than the first lattice strain.
    • 在一个实施例中,提供了一种在衬底表面上制造硅基器件的方法,其包括通过将衬底表面暴露于包括Cl 2 SiH 2,锗源,第一蚀刻剂和第二蚀刻剂的第一工艺气体来沉积第一含硅层 载气并通过将第一含硅层暴露于包含SiH 4和第二蚀刻剂的第二工艺气体而沉积第二含硅层。 在另一个实施例中,提供了一种用于在衬底表面上沉积含硅材料的方法,其包括以约15at%或更多的第一锗浓度在衬底表面上沉积第一含硅层。 该方法进一步提供了在第一含硅层上沉积第二含硅层,其中第二锗浓度为约15原子%或更低,将基底表面暴露于空气中以形成天然氧化物层,将天然氧化物层去除 暴露第二含硅层,并在第二含硅层上沉积第三含硅层。 在另一个实施例中,提供了一种用于在衬底表面上沉积含硅材料的方法,其包括以第一晶格应变在衬底表面上外延沉积第一含硅层,并且在第一含硅层上外延沉积 第二含硅层具有大于第一晶格应变的第二晶格应变。