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    • 10. 发明授权
    • Directed effusive beam atomic layer epitaxy system and method
    • 导向射流原子层外延系统及方法
    • US5316793A
    • 1994-05-31
    • US919685
    • 1992-07-27
    • Robert M. WallaceBruce E. Gnade
    • Robert M. WallaceBruce E. Gnade
    • B01J19/00C23C16/44C23C16/455C30B25/02C30B25/14H01L21/205C23C16/00
    • C23C16/45544C23C16/45517C30B25/14
    • A system and method for epitaxial growth of high purity materials on an atomic or molecular layer by layer basis wherein a substrate is placed in an evacuated chamber which is evacuated to a pressure of less than about 10.sup.-9 Torr and predetermined amounts of predetermined precursor gases are injected into the chamber from a location in the chamber closely adjacent the substrate to form the atomic or molecular layer at the surface of the substrate while maintaining the pressure at less than about 10.sup.-9 Torr in the chamber in regions thereof distant from the substrate. The precursor gases are provided from a plurality of tanks containing the precursor gases therein under predetermined pressure and predetermined ones of the tanks are opened to the chamber for predetermined time periods while maintaining the pressure in the tanks. A dose limiting structure is provided for directing predetermined amounts of the precursor gases principally at the substrate with a dose limiting directional structure.
    • 一种用于以原子或分子层为基础外延生长高纯度材料的系统和方法,其中将衬底放置在抽真空至小于约10-9乇的压力的预抽真空室中,并将预定量的预定前体气体 从与基板紧邻的室中的位置注入室中,以在基板的表面处形成原子层或分子层,同时在远离基板的区域中将室内的压力维持在小于约10-9乇 。 前体气体由预定压力下容纳其中的前体气体的多个容器提供,并且预定的这些罐在腔室中保持预定的时间段同时保持在罐中的压力。 提供了剂量限制结构,用于以剂量限制的方向结构主要在衬底上引导预定量的前体气体。