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    • 9. 发明申请
    • Contact structures and semiconductor devices including the same and methods of forming the same
    • 接触结构和包括其的半导体器件及其形成方法
    • US20080284029A1
    • 2008-11-20
    • US12151997
    • 2008-05-12
    • Seong-Goo KimHyeong-Sun HongDong-Hyun KimNam-Jung Kang
    • Seong-Goo KimHyeong-Sun HongDong-Hyun KimNam-Jung Kang
    • H01L21/768H01L23/522
    • H01L29/4236H01L21/76829H01L21/76897H01L27/0207H01L27/10855H01L27/10876
    • Methods of forming a contact structure in a semiconductor device include providing a semiconductor substrate including active regions and word lines crossing the active regions. A first interlayer dielectric layer is formed on the semiconductor substrate. Direct contact plugs are formed extending through the first interlayer dielectric layer to contact selected ones of the active regions. Bit line structures are formed on the first interlayer dielectric layer and crossing the word lines that are coupled to the selected ones of the active regions by the direct contact plugs. A second interlayer dielectric layer is formed on the semiconductor substrate including the bit line structures. Barrier patterns are formed extending in parallel with bit line structures and into the second interlayer dielectric layer. Mask patterns are formed overlying an entirety of top surfaces of the direct contact plugs on the second interlayer dielectric layer and the bit line structures. The second and first interlayer dielectric layers are etched using the mask patterns, the barrier patterns and the bit line structures as an etching mask to form buried contact holes and buried contact plugs are formed in the buried contact holes.
    • 在半导体器件中形成接触结构的方法包括提供包括有源区和跨越有源区的字线的半导体衬底。 在半导体衬底上形成第一层间电介质层。 形成延伸穿过第一层间电介质层的直接接触插塞以接触所选择的有源区域。 位线结构形成在第一层间电介质层上并且通过直接接触插塞与被选择的有源区域耦合的字线交叉。 在包括位线结构的半导体衬底上形成第二层间电介质层。 阻挡层图案形成为与位线结构平行延伸并进入第二层间电介质层。 掩模图形形成在第二层间介质层上的直接接触插塞的整个顶表面和位线结构上。 使用掩模图案蚀刻第二和第一层间电介质层,将掩模图案和位线结构作为蚀刻掩模形成埋入的接触孔,并且在埋入的接触孔中形成掩埋的接触插塞。
    • 10. 发明授权
    • Contact structures and semiconductor devices including the same
    • 接触结构和包括其的半导体器件
    • US08378497B2
    • 2013-02-19
    • US12758946
    • 2010-04-13
    • Seong-Goo KimHyeong-Sun HongDong-Hyun KimNam-Jung Kang
    • Seong-Goo KimHyeong-Sun HongDong-Hyun KimNam-Jung Kang
    • H01L23/48H01L23/52H01L29/40
    • H01L29/4236H01L21/76829H01L21/76897H01L27/0207H01L27/10855H01L27/10876
    • Methods of forming a contact structure in a semiconductor device include providing a semiconductor substrate including active regions and word lines crossing the active regions. A first interlayer dielectric layer is formed on the semiconductor substrate. Direct contact plugs are formed extending through the first interlayer dielectric layer to contact selected ones of the active regions. Bit line structures are formed on the first interlayer dielectric layer and crossing the word lines that are coupled to the selected ones of the active regions by the direct contact plugs. A second interlayer dielectric layer is formed on the semiconductor substrate including the bit line structures. Barrier patterns are formed extending in parallel with bit line structures and into the second interlayer dielectric layer. Mask patterns are formed overlying an entirety of top surfaces of the direct contact plugs on the second interlayer dielectric layer and the bit line structures. The second and first interlayer dielectric layers are etched using the mask patterns, the barrier patterns and the bit line structures as an etching mask to form buried contact holes and buried contact plugs are formed in the buried contact holes.
    • 在半导体器件中形成接触结构的方法包括提供包括有源区和跨越有源区的字线的半导体衬底。 在半导体衬底上形成第一层间电介质层。 形成延伸穿过第一层间电介质层的直接接触插塞以接触所选择的有源区域。 位线结构形成在第一层间电介质层上并且通过直接接触插塞与被选择的有源区域耦合的字线交叉。 在包括位线结构的半导体衬底上形成第二层间电介质层。 阻挡层图案形成为与位线结构平行延伸并进入第二层间电介质层。 掩模图形形成在第二层间介质层上的直接接触插塞的整个顶表面和位线结构上。 使用掩模图案蚀刻第二和第一层间电介质层,将掩模图案和位线结构作为蚀刻掩模形成埋入的接触孔,并且在埋入的接触孔中形成掩埋的接触插塞。