METHOD OF FORMING MINUTE PATTERNS AND METHOD OF MANUFACTURING A SEMICONDUCTOR DEVICE USING THE SAME
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    发明申请
    METHOD OF FORMING MINUTE PATTERNS AND METHOD OF MANUFACTURING A SEMICONDUCTOR DEVICE USING THE SAME 有权
    形成分钟图案的方法和使用其制造半导体器件的方法

    公开(公告)号:US20160218010A1

    公开(公告)日:2016-07-28

    申请号:US14975932

    申请日:2015-12-21

    IPC分类号: H01L21/28 H01L27/11 H01L29/66

    摘要: A method includes forming a first etch target layer and a first mask layer on a substrate. Sacrificial patterns extending in a first direction are formed on the first mask layer in a second direction. Spacers are formed on sidewalls of the sacrificial patterns. After removing the sacrificial patterns, the first mask layer is etched using the spacers as an etching mask to form first masks. Second masks are formed on sidewalls of each first mask to define a third masks including each first mask and the second masks on sidewalls of each first mask. The first etch target layer is etched using the first and third masks as an etching mask to form first and second patterns in the first and second regions, respectively. Each first pattern has a first width, and each second pattern has a second width greater than the first width.

    摘要翻译: 一种方法包括在衬底上形成第一蚀刻目标层和第一掩模层。 在第一方向上在第一掩模层上形成沿第一方向延伸的牺牲图案。 垫片形成在牺牲图案的侧壁上。 在去除牺牲图案之后,使用间隔件作为蚀刻掩模来蚀刻第一掩模层以形成第一掩模。 第二掩模形成在每个第一掩模的侧壁上以限定包括每个第一掩模的第三掩模和在每个第一掩模的侧壁上的第二掩模。 使用第一和第三掩模蚀刻第一蚀刻目标层作为蚀刻掩模,以分别在第一和第二区域中形成第一和第二图案。 每个第一图案具有第一宽度,并且每个第二图案具有大于第一宽度的第二宽度。