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    • 4. 发明授权
    • Process for producing metal thin films by ALD
    • ALD生产金属薄膜的工艺
    • US06824816B2
    • 2004-11-30
    • US10066315
    • 2002-01-29
    • Titta AaltonenPetra AlénMikko RitalaMarkku Leskelä
    • Titta AaltonenPetra AlénMikko RitalaMarkku Leskelä
    • B05D512
    • H01L21/7687B82Y25/00C23C16/18C23C16/45553G11B5/66G11B5/85H01F10/325H01L21/02183H01L21/02186H01L21/0228H01L21/28562H01L21/3162H01L28/60
    • The invention relates generally to processes for producing electrically conductive noble metal thin films on a substrate by atomic layer deposition. According to one embodiment of the invention a substrate with a surface is provided in a reaction chamber and a vaporised precursor of a noble metal is pulsed into the reaction chamber. By contacting the vaporised precursor with the surface of the substrate, no more than about a molecular layer of the metal precursor is formed on the substrate. In a next step, a pulse of molecular oxygen-containing gas is provided in the reaction chamber, where the oxygen reacts with the precursor on the substrate. Thus, high-quality metal thin films can be deposited by utilising reactions between the metal precursor and oxygen. In one embodiment, electrically conductive layers are deposited in structures that have high aspect ratio vias and trenches, local high elevation areas or other similar surface structures that make the surface rough.
    • 本发明一般涉及通过原子层沉积在衬底上制造导电贵金属薄膜的方法。 根据本发明的一个实施方案,具有表面的基底设置在反应室中,并将贵金属的气化前体脉冲进入反应室。 通过使蒸发的前体与基底的表面接触,在基底上不会形成不超过约金属前体的分子层。 在下一步骤中,在反应室中提供含分子氧气体的脉冲,其中氧气与基板上的前体反应。 因此,可以通过利用金属前体和氧之间的反应来沉积高质量的金属薄膜。 在一个实施例中,在具有高纵横比通孔和沟槽,局部高仰角区域或使表面粗糙的其它类似表面结构的结构中沉积导电层。
    • 5. 发明授权
    • Process for producing metal thin films by ALD
    • ALD生产金属薄膜的工艺
    • US07220451B2
    • 2007-05-22
    • US10916257
    • 2004-08-10
    • Titta AaltonenPetra AlénMikko RitalaMarkku Leskelä
    • Titta AaltonenPetra AlénMikko RitalaMarkku Leskelä
    • C23C16/40
    • H01L21/7687B82Y25/00C23C16/18C23C16/45553G11B5/66G11B5/85H01F10/325H01L21/02183H01L21/02186H01L21/0228H01L21/28562H01L21/3162H01L28/60
    • Electrically conductive noble metal thin films can be deposited on a substrate by atomic layer deposition. According to one embodiment of the invention a substrate with a surface is provided in a reaction chamber and a vaporised precursor of a noble metal is pulsed into the reaction chamber. By contacting the vaporised precursor with the surface of the substrate, no more than about a molecular layer of the metal precursor is formed on the substrate. In a next step, a pulse of molecular oxygen-containing gas is provided in the reaction chamber, where the oxygen reacts with the precursor on the substrate. Thus, high-quality metal thin films can be deposited by utilising reactions between the metal precursor and oxygen. In one embodiment, electrically conductive layers are deposited in structures that have high aspect ratio vias and trenches, local high elevation areas or other similar surface structures that make the surface rough.
    • 导电性贵金属薄膜可通过原子层沉积沉积在衬底上。 根据本发明的一个实施方案,具有表面的基底设置在反应室中,并将贵金属的气化前体脉冲进入反应室。 通过使蒸发的前体与基底的表面接触,在基底上不会形成不超过约金属前体的分子层。 在下一步骤中,在反应室中提供含分子氧的气体脉冲,其中氧气与基板上的前体反应。 因此,可以通过利用金属前体和氧之间的反应来沉积高质量的金属薄膜。 在一个实施例中,在具有高纵横比通孔和沟槽,局部高仰角区域或使表面粗糙的其它类似表面结构的结构中沉积导电层。