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    • 6. 发明申请
    • METHOD FOR FABRICATING SEMICONDUCTOR DEVICE WITH METAL LINE
    • 用金属线制造半导体器件的方法
    • US20100062598A1
    • 2010-03-11
    • US12618523
    • 2009-11-13
    • Hae-Jung LEESang-Hoon ChoSuk-Ki Kim
    • Hae-Jung LEESang-Hoon ChoSuk-Ki Kim
    • H01L21/768
    • H01L21/76877H01L21/32115H01L21/32136H01L21/76843H01L21/76849
    • A method for fabricating a semiconductor device includes forming an inter-layer insulation layer on a substrate; forming openings in the inter-layer insulation layer; forming a metal barrier layer in the openings and on the inter-layer insulation layer; forming a first conductive layer on the metal barrier layer and filled in the openings; etching the first conductive layer to form interconnection layers in the openings and to expose portions of the metal barrier layer, the interconnection layers being inside the openings and at a depth from a top of the openings; etching the exposed portions of the metal barrier layer to obtain a sloped profile of the metal barrier layer at top lateral portions of the openings; forming a second conductive layer over the inter-layer insulation layer, the interconnection layers and the metal barrier layer with the sloped profile; and patterning the second conductive layer to form metal lines.
    • 一种制造半导体器件的方法包括在衬底上形成层间绝缘层; 在层间绝缘层中形成开口; 在开口和层间绝缘层上形成金属阻挡层; 在所述金属阻挡层上形成第一导电层并填充在所述开口中; 蚀刻所述第一导电层以在所述开口中形成互连层并且暴露所述金属阻挡层的部分,所述互连层位于所述开口内部以及在距所述开口顶部的深度处; 蚀刻金属阻挡层的暴露部分以在开口的顶侧部分处获得金属阻挡层的倾斜轮廓; 在所述层间绝缘层上形成第二导电层,所述互连层和所述金属阻挡层具有所述倾斜轮廓; 并且图案化第二导电层以形成金属线。