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    • 10. 发明申请
    • MEMS DEVICE
    • MEMS器件
    • US20150266721A1
    • 2015-09-24
    • US14660157
    • 2015-03-17
    • SEIKO EPSON CORPORATION
    • Takahiko YOSHIZAWA
    • B81B7/00B81B7/02
    • B81C1/00246B81B2201/0271B81C2203/0136B81C2203/0163B81C2203/0764
    • A MEMS device includes a semiconductor substrate having a main surface with a first region in which a trench is formed and a second region in which an impurity diffusion region of a semiconductor circuit element is formed; a functional element provided, either directly or via an insulating film, on a bottom surface of the trench of the semiconductor substrate; a wall portion in the trench of the semiconductor substrate and forming a cavity surrounding the functional element; a lid portion that covers the cavity; and a pillar in the cavity and in contact with either the bottom surface of the trench of the semiconductor substrate or the insulating film, and with a back surface of the lid portion.
    • MEMS器件包括具有主表面的半导体衬底,其中形成有沟槽的第一区域和形成有半导体电路元件的杂质扩散区域的第二区域; 在半导体衬底的沟槽的底表面上直接或经由绝缘膜提供的功能元件; 在所述半导体衬底的沟槽中的壁部分,并且形成围绕所述功能元件的空腔; 覆盖所述空腔的盖部; 以及与该半导体基板的沟槽的底面或绝缘膜接触的空腔内的支柱,以及盖部的背面。