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专利名称:MOSFET and fabrication method thereof发明人:Young-Kum Back,Yeon-Woo Cheong申请号:US09871711申请日:20010604
公开号:US20020001933A1公开日:20020103
专利附图:
摘要:A MOSFET is fabricated by forming a trench in a semiconductor substrate,forming an insulating film in the trench, forming a gate electrode to fill in the trench,forming a gate oxide on the gate electrode, the insulating film and an adjacent portion ofthe semiconductor substrate, forming a first silicon film on the semiconductor substrate
and on a portion of the gate oxide, and forming a second silicon film on a portion of thegate oxide on which the first silicon film is not formed. Since the thusly fabricatedMOSFET has a controlled channel length, modeling of the device can be easily achievedand its mass-producibility is improved.
申请人:HYUNDAI ELECTRONICS INDUSTRIES CO., LTD.
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