Method for etching mesa isolation in antimony-based compound semiconductor structures
    2.
    发明授权
    Method for etching mesa isolation in antimony-based compound semiconductor structures 有权
    在锑基化合物半导体结构中蚀刻台面隔离的方法

    公开(公告)号:US07135411B2

    公开(公告)日:2006-11-14

    申请号:US10918119

    申请日:2004-08-12

    IPC分类号: H01L21/306

    摘要: Antimony-based semiconductor devices are formed over a substrate structure (10) that includes an antimony-based buffer layer (24) and an antimony-based buffer cap (26). Multiple epitaxial layers (30–42) formed over the substrate structure (10) are dry etched to form device mesas (12) and the buffer cap (26) provides a desirably smooth mesa floor and electrical isolation around the mesas.

    摘要翻译: 锑基半导体器件形成在包括锑基缓冲层(24)和锑基缓冲帽(26)的衬底结构(10)上。 形成在衬底结构(10)上方的多个外延层(30-42)被干蚀刻以形成器件台面(12),并且缓冲帽(26)提供期望平滑的台面底板和围绕台面的电隔离。