Invention Application
US20030104649A1 Method for making CMOS-based monolithic micro electromechanical system (MEMS) integrated circuits and integrated circuits made thereby 审中-公开
制造基于CMOS的单片微机电系统(MEMS)集成电路和集成电路的方法

  • Patent Title: Method for making CMOS-based monolithic micro electromechanical system (MEMS) integrated circuits and integrated circuits made thereby
  • Patent Title (中): 制造基于CMOS的单片微机电系统(MEMS)集成电路和集成电路的方法
  • Application No.: US10218902
    Application Date: 2002-08-15
  • Publication No.: US20030104649A1
    Publication Date: 2003-06-05
  • Inventor: Mehmet OzgurMona Elwakkad Zaghloul
  • Main IPC: H01L021/00
  • IPC: H01L021/00 H01L029/82 H01L029/00
Method for making CMOS-based monolithic micro electromechanical system (MEMS) integrated circuits and integrated circuits made thereby
Abstract:
A method is provided for fabricating a CMOS based micro-electromechanical system (MEMS) integrated circuit. A CMOS circuit layout is fabricated on a silicon substrate. A first thick film photo resist layer is then deposited on the CMOS circuit layout. To prevent oxidation from occurring between aluminum and gold, a seed layer is applied to the first thick film photo resist layer. A mold is then formed by selectively depositing a second thick film photo resist layer on portions of the seed layer so that a conductive layer can be applied to the mold. Portions of the seed layer are then removed and a stress compensation material is applied to the conductive layer. A back side surface of the silicon substrate is then etched to remove areas not covered by a mask, and the first thick film photo resist layer is removed via openings in the CMOS circuit layout.
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