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    • 4. 发明授权
    • Semiconductor device and method of manufacturing the same
    • 半导体装置及其制造方法
    • US5254872A
    • 1993-10-19
    • US673265
    • 1991-03-21
    • Takashi YodaTohru WatanabeKatsuya Okumura
    • Takashi YodaTohru WatanabeKatsuya Okumura
    • H01L23/532H01L23/48
    • H01L23/53223H01L2924/0002
    • A semiconductor device having a reliable contact is disclosed. The device includes a barrier film deposited on the bottom and side wall of a contact hole opened in a insulating film at a predetermined position; a first metal film filled in the contact hole; and a second metal film of low resistance for forming an interconnection which passes above the contact hole filled in with the first metal film. An oxide film is formed by oxidation on the barrier metal film. And a method of manufacturing the semiconductor device is disclosed. The method includes the steps of: after opening a contact hole at a predetermined position in an insulating film deposited on a semiconductor substrate, forming a barrier film in the bottom and side wall of the contact hole; filling the contact hole with a first metal film while heating the semiconductor substrate at a predetermined temperature; and depositing a second metal film over the surface of the semiconductor device and patterning the second metal film to form an interconnection which passes the contact hole that has been filled in with the first metal film.
    • 公开了具有可靠接触的半导体器件。 该装置包括沉积在预定位置处在绝缘膜上开口的接触孔的底部和侧壁上的阻挡膜; 填充在接触孔中的第一金属膜; 以及用于形成互连件的低电阻的第二金属膜,其通过填充有第一金属膜的接触孔以上。 在阻挡金属膜上通过氧化形成氧化膜。 并且公开了一种制造半导体器件的方法。 该方法包括以下步骤:在沉积在半导体衬底上的绝缘膜中的预定位置打开接触孔之后,在接触孔的底壁和侧壁中形成阻挡膜; 在第一金属膜上填充接触孔,同时在预定温度下加热半导体衬底; 以及在所述半导体器件的表面上沉积第二金属膜,并且对所述第二金属膜进行构图以形成通过已经填充有所述第一金属膜的所述接触孔的互连。