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
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Application No.: US10218902Application Date: 2002-08-15
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Publication No.: US20030104649A1Publication Date: 2003-06-05
- Inventor: Mehmet Ozgur , Mona Elwakkad Zaghloul
- Main IPC: H01L021/00
- IPC: H01L021/00 ; H01L029/82 ; H01L029/00

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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