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    • 38. 发明授权
    • Methods of fabricating semiconductor device using sacrificial layer
    • 使用牺牲层制造半导体器件的方法
    • US07348277B2
    • 2008-03-25
    • US11352640
    • 2006-02-13
    • Ja-Eung KooByung-Lyul Park
    • Ja-Eung KooByung-Lyul Park
    • H01L21/302H01L21/461
    • H01L21/7688H01L21/76819
    • There are provided methods of fabricating a semiconductor device using a sacrificial layer. The methods provide an approach to maintaining thickness distribution of the interlayer insulating layers below a sacrificial layer uniform on an overall surface of a semiconductor substrate during performing a chemical mechanical polishing (CMP) process in a damascene process. To this end, the method includes forming a pad layer, a pad interlayer insulating layer, an etch stop layer pattern, a planarized interlayer insulating layer and a sacrificial layer sequentially on a semiconductor substrate. At least one trench is formed in the sacrificial layer and the planarized interlayer insulating layer. A via contact hole is formed in the etch stop layer pattern, the pad interlayer insulating layer, and the pad layer to be disposed below the trench. A diffusion barrier layer and a conductive layer are sequentially formed to fill the trench and the via contact hole. A CMP process is performed on the conductive layer, the diffusion barrier layer, and the sacrificial layer.
    • 提供了使用牺牲层制造半导体器件的方法。 这些方法提供了一种在大理石工艺中进行化学机械抛光(CMP)工艺期间,在半导体衬底的整个表面上均匀地保持牺牲层的厚度分布的方法。 为此,该方法包括在半导体衬底上依次形成焊盘层,焊盘层间绝缘层,蚀刻停止层图案,平坦化的层间绝缘层和牺牲层。 在牺牲层和平坦化层间绝缘层中形成至少一个沟槽。 在蚀刻停止层图案,焊盘层间绝缘层和焊盘层中形成通孔接触孔,以设置在沟槽下方。 依次形成扩散阻挡层和导电层以填充沟槽和通孔接触孔。 在导电层,扩散阻挡层和牺牲层上执行CMP工艺。
    • 40. 发明申请
    • Methods of fabricating semiconductor device using sacrificial layer
    • 使用牺牲层制造半导体器件的方法
    • US20060183333A1
    • 2006-08-17
    • US11352640
    • 2006-02-13
    • Ja-Eung KooByung-Lyul Park
    • Ja-Eung KooByung-Lyul Park
    • H01L21/461C23F1/00B44C1/22
    • H01L21/7688H01L21/76819
    • There are provided methods of fabricating a semiconductor device using a sacrificial layer. The methods provide an approach to maintaining thickness distribution of the interlayer insulating layers below a sacrificial layer uniform on an overall surface of a semiconductor substrate during performing a chemical mechanical polishing (CMP) process in a damascene process. To this end, the method includes forming a pad layer, a pad interlayer insulating layer, an etch stop layer pattern, a planarized interlayer insulating layer and a sacrificial layer sequentially on a semiconductor substrate. At least one trench is formed in the sacrificial layer and the planarized interlayer insulating layer. A via contact hole is formed in the etch stop layer pattern, the pad interlayer insulating layer, and the pad layer to be disposed below the trench. A diffusion barrier layer and a conductive layer are sequentially formed to fill the trench and the via contact hole. A CMP process is performed on the conductive layer, the diffusion barrier layer, and the sacrificial layer.
    • 提供了使用牺牲层制造半导体器件的方法。 这些方法提供了一种在大理石过程中执行化学机械抛光(CMP)工艺期间,在半导体衬底的整个表面上均匀地保持牺牲层的厚度分布的方法。 为此,该方法包括在半导体衬底上依次形成焊盘层,焊盘层间绝缘层,蚀刻停止层图案,平坦化的层间绝缘层和牺牲层。 在牺牲层和平坦化层间绝缘层中形成至少一个沟槽。 在蚀刻停止层图案,焊盘层间绝缘层和焊盘层中形成通孔接触孔,以设置在沟槽下方。 依次形成扩散阻挡层和导电层以填充沟槽和通孔接触孔。 在导电层,扩散阻挡层和牺牲层上执行CMP工艺。