MIKROMECHANISCHES BAUELEMENT UND ENTSPRECHENDES HERSTELLUNGSVERFAHREN

    公开(公告)号:EP1334060A1

    公开(公告)日:2003-08-13

    申请号:EP01992685.6

    申请日:2001-10-06

    Abstract: The invention relates to the production of a micromechanical component, comprising a substrate (10), made from a substrate material with a first doping type (p), a micromechanical functional structure arranged in the substrate (10) and a cover layer for the at least partial covering of the micromechanical functional structure. The micromechanical functional structure comprises regions (15; 15a; 15b; 15c; 730; 740; 830) made from the substrate material with a second doping type (n), at least partially surrounded by a cavity (50; 50a-f) and the cover layer comprises a porous layer (30) made from the substrate material.

    Abstract translation: 本发明涉及微机械部件的制造,该微机械部件包括由具有第一掺杂类型(p)的衬底材料制成的衬底(10),布置在衬底(10)中的微机械功能结构和用于at 微机械功能结构的至少部分覆盖。 微机械功能结构包括至少部分地由空腔(50; 50a-f)围绕的具有第二掺杂类型(n)的由衬底材料制成的区域(15; 15a; 15b; 15c; 730; 740; 830); 覆盖层包括由基底材料制成的多孔层(30)。

    Process for manufacturing integrated microstructures of single-crystal semiconductor material
    105.
    发明公开
    Process for manufacturing integrated microstructures of single-crystal semiconductor material 失效
    Verfahren zum Herstellen integrierter Mikrostrukturen von Einkristall-Halbleitermaterialien

    公开(公告)号:EP0895276A1

    公开(公告)日:1999-02-03

    申请号:EP97830406.1

    申请日:1997-07-31

    Abstract: The process comprises forming a buried sacrificial layer (5) of porous silicon in the starting substrate (2) and then a single-crystal epitaxial layer (7) intended to accommodate both the sensitive element and the integrated circuit. After forming electronic components (12, 18) in the epitaxial layer, the epitaxial layer (7) is anisotropically etched over the buried sacrificial layer (5) to form trenches (27) through which the buried sacrificial layer is then etched and removed. The suspended mass (30) thus obtained has high mechanical properties, high thickness, the process is wholly compatible with standard microelectronics techniques and can be implemented at low cost.

    Abstract translation: 该工艺包括在起始衬底(2)中形成多孔硅的掩埋牺牲层(5),然后形成旨在兼容敏感元件和集成电路的单晶外延层(7)。 在外延层中形成电子部件(12,18)之后,在掩埋牺牲层(5)上各向异性地蚀刻外延层(7)以形成沟槽(27),然后通过该沟槽蚀刻和去除掩埋牺牲层。 这样获得的悬浮物(30)具有高机械性能,高厚度,该工艺与标准微电子技术完全兼容,并且可以以低成本实现。

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