반도체 장치의 제조 방법

    公开(公告)号:KR1020130139740A

    公开(公告)日:2013-12-23

    申请号:KR1020127020528

    申请日:2011-12-07

    Abstract: A method of manufacturing a MOSFET (100) includes the steps of preparing a silicon carbide substrate (1), forming an active layer (7) on the silicon carbide substrate (1), forming a gate oxide film (91) on the active layer (7), forming a gate electrode (93) on the gate oxide film (91), forming a source contact electrode (92) on the active layer (7), and forming a source interconnection (95) on the source contact electrode (92). The step of forming the source interconnection (95) includes the steps of forming a conductor film on the source contact electrode (92) and processing the conductor film by etching the conductor film with reactive ion etching. Then, the method of manufacturing a MOSFET 100 further includes the step of performing annealing of heating the silicon carbide substrate (1) to a temperature not lower than 50°C after the step of processing the conductor film.

    탄화규소 기판의 표면 재구성 방법
    8.
    发明公开
    탄화규소 기판의 표면 재구성 방법 失效
    碳化硅基材表面重建方法

    公开(公告)号:KR1020080017291A

    公开(公告)日:2008-02-26

    申请号:KR1020077010138

    申请日:2006-03-02

    CPC classification number: C23C16/24 C23C14/185 C30B29/36 C30B33/02

    Abstract: A method of surface reconstruction for silicon carbide substrate (1), comprising the silicon film formation step of forming silicon film (2) on a surface of the silicon carbide substrate (1) and the heat treatment step of carrying out heat treatment of the silicon carbide substrate (1) and silicon film (2) without disposing of a polycrystalline silicon carbide substrate on the surface of the silicon film (2). After the heat treatment step, there may be carried out the silicon film removal step of removing the silicon film (2). Further, after the heat treatment step, there may be carried out the silicon oxide film formation step of oxidizing the silicon film (2) into a silicon oxide film and the silicon oxide film removal step of removing the silicon oxide film.

    Abstract translation: 一种碳化硅衬底(1)的表面重建方法,包括在碳化硅衬底(1)的表面上形成硅膜(2)的硅膜形成步骤和进行硅的热处理的热处理步骤 碳化物基板(1)和硅膜(2),而不在硅膜(2)的表面上设置多晶碳化硅基板。 在热处理步骤之后,可以进行除去硅膜(2)的硅膜去除步骤。 此外,在热处理步骤之后,可以进行将硅膜氧化成氧化硅膜的氧化硅膜形成步骤和去除氧化硅膜的氧化硅膜去除步骤。

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