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    • 5. 发明授权
    • Method of manufacturing complementary metal oxide semiconductor device
    • 互补金属氧化物半导体器件的制造方法
    • US08278166B2
    • 2012-10-02
    • US12837519
    • 2010-07-16
    • Chun-Chia ChenYing-Hung ChouZen-Jay TsaiShih-Chieh HsuYi-Chung ShengChi-Horn Pai
    • Chun-Chia ChenYing-Hung ChouZen-Jay TsaiShih-Chieh HsuYi-Chung ShengChi-Horn Pai
    • H01L21/8238
    • H01L21/823807H01L21/823814H01L21/823864H01L29/7848
    • A method of manufacturing a CMOS device includes providing a substrate having a first region and a second region; forming a first gate structure and a second gate structure, each of the gate structures comprising a sacrificial layer and a hard mask layer; forming a patterned first protecting layer covering the first region and a first spacer on sidewalls of the second gate structure; performing an etching process to form first recesses in the substrate; performing a SEG process to form epitaxial silicon layers in each first recess; forming a patterned second protecting layer covering the second region; and performing a dry etching process with the patterned second protecting layer serving as an etching mask to etch back the patterned first protecting layer to form a second spacer on sidewalls of the first gate structure and to thin down the hard mask layer on the first gate structure.
    • 制造CMOS器件的方法包括提供具有第一区域和第二区域的衬底; 形成第一栅极结构和第二栅极结构,每个栅极结构包括牺牲层和硬掩模层; 形成覆盖所述第一区域的图案化的第一保护层和在所述第二栅极结构的侧壁上的第一间隔物; 进行蚀刻工艺以在基板中形成第一凹部; 执行SEG工艺以在每个第一凹部中形成外延硅层; 形成覆盖所述第二区域的图案化的第二保护层; 以及利用所述图案化的第二保护层作为蚀刻掩模进行干蚀刻工艺,以蚀刻所述图案化的第一保护层,以在所述第一栅极结构的侧壁上形成第二间隔物,并且使所述第一栅极结构上的所述硬掩模层变薄 。