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    • 9. 发明授权
    • Method of making planar-type bottom electrode for semiconductor device
    • 制造半导体器件的平面型底电极的方法
    • US07919384B2
    • 2011-04-05
    • US12050649
    • 2008-03-18
    • Hsiao-Che WuMing-Yen LiWen-Li Tsai
    • Hsiao-Che WuMing-Yen LiWen-Li Tsai
    • H01L21/20
    • H01L28/91
    • A method of making planar-type bottom electrode for semiconductor device is disclosed. A sacrificial layer structure is formed on a substrate. Multiple first trenches are defined in the sacrificial layer structure, wherein those first trenches are arranged in a first direction. The first trenches are filled with insulating material to form an insulating layer in each first trench. Multiple second trenches are defined in the sacrificial layer structure between the insulating layers, and are arranged in a second direction such that the second trenches intersect the first trenches. The second trenches are filled with bottom electrode material to form a bottom electrode layer in each second trench. The insulating layers separate respectively the bottom electrode layers apart from each other. Lastly, removing the sacrificial layer structure defines a receiving space by two adjacent insulating layers and two adjacent bottom electrode layers.
    • 公开了制造半导体器件的平面型底电极的方法。 在基板上形成牺牲层结构。 在牺牲层结构中限定多个第一沟槽,其中这些第一沟槽被布置在第一方向上。 第一沟槽用绝缘材料填充,以在每个第一沟槽中形成绝缘层。 多个第二沟槽被限定在绝缘层之间的牺牲层结构中,并且被布置在第二方向上,使得第二沟槽与第一沟槽相交。 第二沟槽填充有底部电极材料,以在每个第二沟槽中形成底部电极层。 绝缘层分别分开彼此分离的底部电极层。 最后,去除牺牲层结构通过两个相邻的绝缘层和两个相邻的底部电极层限定了接收空间。
    • 10. 发明申请
    • ISOLATION METHOD OF ACTIVE AREA FOR SEMICONDUCTOR DEVICE
    • 半导体器件的主动区隔离方法
    • US20090023268A1
    • 2009-01-22
    • US12108306
    • 2008-04-23
    • Hsiao-Che WUMing-Yen LiWen-Li Tsai
    • Hsiao-Che WUMing-Yen LiWen-Li Tsai
    • H01L21/762
    • H01L21/76205H01L21/823878
    • An isolation method of active area for semiconductor forms an isolated active area in a substrate. The substrate is a p-type silicon substrate. A pad oxide layer is formed on the substrate. A patterned sacrificial layer and an upper mask layer are formed on the pad oxide layer, where the upper mask layer is formed over the isolation region of the substrate. A gap is formed between the patterned sacrificial layer and the upper mask layer. An implantation process is performed to dope ions into the substrate through the gap, which forms an n-type barrier to surround the active areas. Lastly, the patterned sacrificial layer is stripped, and an anodization process is utilized to convert p-type bulk silicon into porous silicon. Then, an oxidation process is performed to oxidize the porous silicon to form a silicon dioxide isolation region for the active areas.
    • 用于半导体的有源区的隔离方法在衬底中形成隔离的有源区。 衬底是p型硅衬底。 衬底氧化层形成在衬底上。 在衬垫氧化物层上形成图案化牺牲层和上掩模层,其中上掩模层形成在衬底的隔离区上。 在图案化的牺牲层和上掩模层之间形成间隙。 进行注入工艺以通过间隙将离子掺杂到衬底中,其形成围绕有源区的n型势垒。 最后,剥离图案化的牺牲层,并且使用阳极氧化工艺将p型体硅转化为多孔硅。 然后,进行氧化处理以氧化多孔硅以形成活性区的二氧化硅隔离区。