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    • 5. 发明授权
    • Concentric showerhead for vapor deposition
    • 用于气相沉积的同心花洒
    • US09121096B2
    • 2015-09-01
    • US12576797
    • 2009-10-09
    • Andreas Hegedus
    • Andreas Hegedus
    • C23C16/00C23C16/30C23C16/455C23C16/458C23C16/48C23C16/54
    • C23C16/301C23C16/45519C23C16/45576C23C16/4583C23C16/481C23C16/54Y10T137/87571
    • Embodiments of the invention generally relate to a concentric gas manifold assembly used in deposition reactor or system during a vapor deposition process. In one embodiment, the manifold assembly has an upper section coupled to a middle section coupled to a lower section. The middle section contains an inlet, a manifold extending from the inlet to a passageway, and a tube extending along a central axis and containing a channel along the central axis and in fluid communication with the passageway. The lower section of the manifold assembly contains a second manifold extending from a second inlet to a second passageway and an opening concentric with the central axis. The tube extends to the opening to form a second channel between the tube and an edge of the opening. The second channel is concentric with the central axis and is in fluid communication with the second passageway.
    • 本发明的实施例一般涉及在气相沉积过程中用于沉积反应器或系统中的同心气体歧管组件。 在一个实施例中,歧管组件具有联接到联接到下部的中部的上部。 中间部分包含入口,从入口延伸到通道的歧管以及沿着中心轴延伸并且沿着中心轴线包含通道并与通道流体连通的管。 歧管组件的下部包含从第二入口延伸到第二通道的第二歧管和与中心轴线同心的开口。 管延伸到开口以在管和开口的边缘之间形成第二通道。 第二通道与中心轴线同心并且与第二通道流体连通。
    • 9. 发明申请
    • MULTIPLE STACK DEPOSITION FOR EPITAXIAL LIFT OFF
    • 多余堆积沉积物用于外延起飞
    • US20100147370A1
    • 2010-06-17
    • US12632565
    • 2009-12-07
    • Gang HeAndreas Hegedus
    • Gang HeAndreas Hegedus
    • H01L31/0304H01L29/205H01L21/20H01L31/18
    • C30B29/42C30B29/40C30B33/06H01L21/02463H01L21/02546H01L31/0304H01L31/03046H01L31/0725H01L31/0735H01L31/184H01L31/1844Y02E10/544Y02P70/521
    • Embodiments of the invention are provided for a thin film stack containing a plurality of epitaxial stacks disposed on a substrate and a method for forming such a thin film stack. In one embodiment, the epitaxial stack contains a first sacrificial layer disposed over the substrate, a first epitaxial film disposed over the first sacrificial layer, a second sacrificial layer disposed over the first epitaxial film, and a second epitaxial film disposed over the second sacrificial layer. The thin film stack may further contain additional epitaxial films disposed over sacrificial layers. Generally, the epitaxial films contain gallium arsenide alloys and the sacrificial layers contain aluminum arsenide alloys. Methods provide the removal of the epitaxial films from the substrate by etching away the sacrificial layers during an epitaxial lift off (ELO) process. The epitaxial films are useful as photovoltaic cells, laser diodes, or other devices or materials.
    • 提供本发明的实施例用于包含设置在基板上的多个外延叠层的薄膜堆叠和用于形成这种薄膜叠层的方法。 在一个实施例中,外延堆叠包含设置在衬底上的第一牺牲层,设置在第一牺牲层上的第一外延膜,设置在第一外延膜上的第二牺牲层,以及设置在第二牺牲层上的第二外延膜 。 薄膜叠层还可以包含设置在牺牲层上的额外的外延膜。 通常,外延膜含有砷化镓合金,牺牲层含有砷化铝合金。 方法提供了在外延剥离(ELO)工艺期间通过蚀刻掉牺牲层从衬底去除外延膜。 外延膜可用作光伏电池,激光二极管或其它器件或材料。