Method of producing a vertical MOS transistor
    2.
    发明授权
    Method of producing a vertical MOS transistor 有权
    制造垂直MOS晶体管的方法

    公开(公告)号:US06337247B1

    公开(公告)日:2002-01-08

    申请号:US09487411

    申请日:2000-01-18

    IPC分类号: H01L21336

    摘要: A spacer is used as a mask in an etching step during which a layer structure is produced for a channel layer and for a first source/drain region. After the layer structure has been produced, the first source/drain region and a second source/drain region can be produced by implantation. The second source/drain region is self-aligned on two mutually opposite flanks of the layer structure. A gate electrode can be produced in the form of a spacer on the two flanks. In order to avoid a capacitance formed by a first contact of the gate electrode and the first source/drain region, a part of the first source/drain region may be removed. If the layer structure is produced along edges of an inner area, then a third contact of the second source/drain region may be produced inside the inner area in order to reduce the surface area of the transistor.

    摘要翻译: 在蚀刻步骤中使用间隔物作为掩模,在该步骤中,为沟道层和第一源极/漏极区域产生层结构。 在生成层结构之后,可以通过注入产生第一源极/漏极区域和第二源极/漏极区域。 第二源极/漏极区域在层结构的两个相互相对的侧面上自对准。 可以在两个侧面上以间隔物的形式制造栅电极。 为了避免由栅极电极和第一源极/漏极区域的第一接触形成的电容,可以去除第一源极/漏极区域的一部分。 如果沿着内部区域的边缘产生层结构,则可以在内部区域内产生第二源极/漏极区域的第三接触,以便减小晶体管的表面积。