"> Fabrication of diaphragms and
    41.
    发明申请
    Fabrication of diaphragms and "floating" regions of single crystal semiconductor for MEMS devices 失效
    制造用于MEMS器件的单晶半导体的膜片和“浮动”区域

    公开(公告)号:US20050054136A1

    公开(公告)日:2005-03-10

    申请号:US10941562

    申请日:2004-09-15

    申请人: Richard Blanchard

    发明人: Richard Blanchard

    IPC分类号: B81B3/00 H01L21/00

    CPC分类号: B81B3/0035

    摘要: A single crystal semiconductor region is fabricated in a semiconductor wafer. The region is either cantilevered, supported at one or both ends, or midpoint, or supported at multiple locations. After a pattern and etch step, a dielectric fill step is performed to define the boundaries of the region in the semiconductor wafer. Oxygen or nitrogen is implanted in the semiconductor wafer on a surface area of the semiconductor wafer that corresponds to a top surface of the region. The annealing of the oxygen or nitrogen ions convert the silicon to an oxide or a nitride beneath the surface area. The silicon dioxide or silicon nitride is etched away to produce a semiconducting region of a single crystal material.

    摘要翻译: 在半导体晶片中制造单晶半导体区域。 该区域是悬臂式的,在一端或两端支撑或中点支撑,或在多个位置支撑。 在图案和蚀刻步骤之后,执行介电填充步骤以限定半导体晶片中的区域的边界。 在对应于该区域的上表面的半导体晶片的表面区域上,在半导体晶片中注入氧或氮。 氧或氮离子的退火将硅转化成表面积下面的氧化物或氮化物。 蚀刻掉二氧化硅或氮化硅以产生单晶材料的半导体区域。