Single step, high temperature nucleation process for a lattice mismatched substrate
    10.
    发明授权
    Single step, high temperature nucleation process for a lattice mismatched substrate 有权
    单步,高温成核过程的晶格失配衬底

    公开(公告)号:US07250360B2

    公开(公告)日:2007-07-31

    申请号:US11069040

    申请日:2005-03-02

    IPC分类号: H01L21/28 H01L21/3205

    摘要: A single step process for nucleation and subsequent epitaxial growth on a lattice mismatched substrate is achieved by pre-treating the substrate surface with at least one group III reactant or at least one group II reactant prior to the introduction of a group V reactant or a group VI reactant. The group III reactant or the group II reactant is introduced into a growth chamber at an elevated growth temperature to wet a substrate surface prior to any actual crystal growth. Once the pre-treatment of the surface is complete, a group V reactant or a group VI reactant is introduced to the growth chamber to commence the deposition of a nucleation layer. A buffer layer is then grown on the nucleation layer providing a surface upon which the epitaxial layer is grown preferably without changing the temperature within the chamber.

    摘要翻译: 通过在引入V族反应物或基团之前用至少一种III族反应物或至少一种II族反应物预处理底物表面来实现晶格失配衬底上的成核和随后的外延生长的单步过程 VI反应物。 将III族反应物或II族反应物在升高的生长温度下引入生长室中,以在任何实际的晶体生长之前润湿基底表面。 一旦表面的预处理完成,将V族反应物或VI族反应物引入生长室,开始沉积成核层。 然后在成核层上生长缓冲层,提供外延层生长的表面,而不改变室内的温度。