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    • 8. 发明授权
    • Method of pitch halving
    • 节距减法的方法
    • US07989355B2
    • 2011-08-02
    • US12370152
    • 2009-02-12
    • Ming-Feng ShiehShinn-Sheng YuAnthony YenMing-Ching ChangJeff J. Xu
    • Ming-Feng ShiehShinn-Sheng YuAnthony YenMing-Ching ChangJeff J. Xu
    • H01L21/302H01L21/461
    • H01L21/3086H01L21/3088H01L21/823828H01L21/823871Y10S438/947
    • The present disclosure provides a method of fabricating a semiconductor device that includes forming a mask layer over a substrate, forming a dummy layer having a first dummy feature and a second dummy feature over the mask layer, forming first and second spacer roofs to cover a top portion of the first and second dummy features, respectively, and forming first and second spacer sleeves to encircle side portions of the first and second dummy features, respectively, removing the first spacer roof and the first dummy feature while protecting the second dummy feature, removing a first end portion and a second end portion of the first spacer sleeve to form spacer fins, and patterning the mask layer using the spacer fins as a first mask element and the second dummy feature as a second mask element.
    • 本公开提供了一种制造半导体器件的方法,该半导体器件包括在衬底上形成掩模层,在掩模层上形成具有第一虚拟特征和第二虚拟特征的虚设层,形成第一和第二间隔物顶部以覆盖顶部 分别形成第一和第二间隔套筒以分别围绕第一和第二虚拟特征的侧面部分,去除第一间隔物顶部和第一虚拟特征,同时保护第二虚拟特征,去除 第一间隔套筒的第一端部和第二端部,以形成间隔件翅片,并且使用间隔件翅片作为第一掩模元件并将第二虚拟特征图案化为掩模层作为第二掩模元件。