Method of fabricating semiconductor device
    1.
    发明授权
    Method of fabricating semiconductor device 有权
    制造半导体器件的方法

    公开(公告)号:US09054210B2

    公开(公告)日:2015-06-09

    申请号:US13479679

    申请日:2012-05-24

    摘要: A method of fabricating a semiconductor device, the method including forming on a substrate a transistor that includes a gate electrode and a source and drain region, forming an interlayer insulating film on the transistor, forming a contact hole in the interlayer insulating film to expose a top surface of the source and drain region, and a thin film is formed at an interface between the contact hole and the exposed top surface of the source and drain region. The method further including selectively removing at least a portion of the thin film by performing an etching process in a non-plasma atmosphere, forming an ohmic contact film on the source and drain region where at least a portion of the thin film was selectively removed, and forming a contact plug by filling the contact hole with a conductive material.

    摘要翻译: 一种制造半导体器件的方法,所述方法包括在衬底上形成包括栅极和源极和漏极区的晶体管,在所述晶体管上形成层间绝缘膜,在所述层间绝缘膜中形成接触孔以暴露出 源极和漏极区域的顶表面,并且在接触孔和源极和漏极区域的暴露顶表面之间的界面处形成薄膜。 该方法还包括通过在非等离子体气氛中进行蚀刻工艺来选择性地去除薄膜的至少一部分,在选择性地去除薄膜的至少一部分的源区和漏区上形成欧姆接触膜, 以及通过用导电材料填充接触孔来形成接触塞。