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    • 8. 发明授权
    • Method of forming contacts for a semiconductor device
    • 形成半导体器件的触点的方法
    • US08222136B2
    • 2012-07-17
    • US12906868
    • 2010-10-18
    • Yuan-Tien TuTsai-Chun LiHuan-Just LinShih-Chang Chen
    • Yuan-Tien TuTsai-Chun LiHuan-Just LinShih-Chang Chen
    • H01L21/4763
    • H01L21/76814H01L21/02063H01L21/76816
    • The present disclosure provides a method of fabricating a semiconductor device. The method includes forming a layer over a substrate. The method includes forming a first opening in the layer that exposes a first region of the substrate. The method includes removing a first oxidation layer formed over the first region through a first sputtering process. The method includes filling the first opening with a conductive material. The method includes forming a second opening in the layer that exposes a second region of the substrate, the second region being different from the first region. The method includes removing a second oxidation layer formed over the second region through a second sputtering process. One of the first and second sputtering processes is more powerful than the other.
    • 本公开提供了制造半导体器件的方法。 该方法包括在衬底上形成层。 所述方法包括在所述层中形成暴露所述衬底的第一区域的第一开口。 该方法包括通过第一溅射工艺去除在第一区域上形成的第一氧化层。 该方法包括用导电材料填充第一开口。 所述方法包括在所述层中形成暴露所述衬底的第二区域的第二开口,所述第二区域不同于所述第一区域。 该方法包括通过第二溅射工艺除去在第二区域上形成的第二氧化层。 第一和第二溅射工艺之一比另一个更强大。
    • 10. 发明授权
    • Method of forming a stacked capacitor structure with increased surface area for a DRAM device
    • 形成用于DRAM器件的具有增加的表面积的堆叠电容器结构的方法
    • US07023042B2
    • 2006-04-04
    • US10755498
    • 2004-01-12
    • Bor-Wen ChanHuan-Just LinHun-Jan Tao
    • Bor-Wen ChanHuan-Just LinHun-Jan Tao
    • H01L27/108H01L29/76H01L29/94H01L31/119
    • H01L28/88H01L27/10814H01L27/10852
    • A process for forming a DRAM stacked capacitor structure with increased surface area, has been developed. The process features forming lateral grooves in the sides of a polysilicon storage node structure, during a dry etching procedure used to define the storage node structure. The grooves are selectively, and laterally formed in ion implanted veins, which in turn had been placed at various depths in an intrinsic polysilicon layer via a series of ion implantation steps, each performed at a specific implant energy. An isotopic component of the storage node structure, defining dry etch procedure, selectively etches the highly doped, ion implanted veins at a greater rate than the non-ion implanted regions of polysificon, located between the ion implanted veins, resulting in a necked profile, storage node structure, featuring increased surface area as a result of the formation of the lateral grooves.
    • 已经开发了用于形成具有增加的表面积的DRAM叠层电容器结构的工艺。 该工艺在用于限定存储节点结构的干蚀刻过程中,在多晶硅存储节点结构的侧面形成横向凹槽。 这些凹槽是选择性地和侧向地形成在离子植入的静脉中,这些静脉又通过一系列离子注入步骤而被放置在本征多晶硅层中的各种深度处,每个离子注入步骤以特定的注入能量进行。 存储节点结构的同位素组分定义了干蚀刻过程,选择性地以高于离子植入的静脉之间的聚合物的非离子注入区域的速率以更高的速率蚀刻高度掺杂的离子植入的静脉,产生颈缩轮廓, 存储节点结构,由于形成横向槽而具有增加的表面积。