Method of manufacturing a semiconductor device using a polysilicon etching mask
    2.
    发明授权
    Method of manufacturing a semiconductor device using a polysilicon etching mask 失效
    使用多晶硅蚀刻掩模制造半导体器件的方法

    公开(公告)号:US07122478B2

    公开(公告)日:2006-10-17

    申请号:US10818266

    申请日:2004-04-02

    IPC分类号: H01L21/302 H01L21/461

    摘要: A method of manufacturing a semiconductor device using a polysilicon layer as an etching mask includes: (a) forming an interlayer dielectric over a semiconductor substrate; (b) forming a polysilicon layer pattern over the interlayer dielectric; (c) forming a contact hole in the interlayer dielectric by etching the interlayer dielectric using the polysilicon layer pattern as an etching mask; (d) removing the polysilicon layer pattern by an etching process that has a large etching selectivity of the polisilicon layer with respect to the interlayer dielectric and about 3% or less etching uniformity; and (e) forming a contact by filling the contact hole with a conductive material.

    摘要翻译: 使用多晶硅层作为蚀刻掩模制造半导体器件的方法包括:(a)在半导体衬底上形成层间电介质; (b)在层间电介质上形成多晶硅层图案; (c)通过使用多晶硅层图案作为蚀刻掩模蚀刻层间电介质,在层间电介质中形成接触孔; (d)通过蚀刻工艺去除多晶硅层图案,所述蚀刻工艺对于硅酸盐层相对于层间电介质具有大的蚀刻选择性,蚀刻均匀性为约3%以下; 和(e)通过用导电材料填充接触孔来形成接触。

    Semiconductor capacitor structure and method for manufacturing the same
    3.
    发明申请
    Semiconductor capacitor structure and method for manufacturing the same 有权
    半导体电容器结构及其制造方法

    公开(公告)号:US20050037562A1

    公开(公告)日:2005-02-17

    申请号:US10835142

    申请日:2004-04-28

    摘要: In one embodiment, a semiconductor device comprises a base and a tapered wall formed on the base. The wall has a midline and also has an inner sidewall and an outer sidewall. The inner sidewall and the outer sidewall are substantially symmetrical with each other in relation to the midline. Thus, the reliability of the semiconductor capacitor structure can be improved and the throughput can be increased. Also, further scaling down of semiconductor devices can be facilitated with the principles of the present invention.

    摘要翻译: 在一个实施例中,半导体器件包括形成在基底上的基部和锥形壁。 壁具有中线并且还具有内侧壁和外侧壁。 内侧壁和外侧壁相对于中线彼此基本对称。 因此,可以提高半导体电容器结构的可靠性,并且可以提高吞吐量。 此外,根据本发明的原理,可以促进半导体器件的进一步缩小。

    Semiconductor capacitor structure and method for manufacturing the same
    4.
    发明授权
    Semiconductor capacitor structure and method for manufacturing the same 有权
    半导体电容器结构及其制造方法

    公开(公告)号:US07544985B2

    公开(公告)日:2009-06-09

    申请号:US11312952

    申请日:2005-12-19

    IPC分类号: H01L27/108

    摘要: In one embodiment, a semiconductor device comprises a base and a tapered wall formed on the base. The wall has a midline and also has an inner sidewall and an outer sidewall. The inner sidewall and the outer sidewall are substantially symmetrical with each other in relation to the midline. Thus, the reliability of the semiconductor capacitor structure can be improved and the throughput can be increased. Also, further scaling down of semiconductor devices can be facilitated with the principles of the present invention.

    摘要翻译: 在一个实施例中,半导体器件包括形成在基底上的基部和锥形壁。 壁具有中线并且还具有内侧壁和外侧壁。 内侧壁和外侧壁相对于中线彼此基本对称。 因此,可以提高半导体电容器结构的可靠性,并且可以提高吞吐量。 此外,根据本发明的原理,可以促进半导体器件的进一步缩小。

    Semiconductor device having capacitor and method of fabricating the same
    10.
    发明申请
    Semiconductor device having capacitor and method of fabricating the same 有权
    具有电容器的半导体器件及其制造方法

    公开(公告)号:US20070111432A1

    公开(公告)日:2007-05-17

    申请号:US11593067

    申请日:2006-11-06

    IPC分类号: H01L21/8242

    摘要: A semiconductor device having a capacitor and a method of fabricating the same may be provided. A method of fabricating a semiconductor device may include forming an etch stop layer and a mold layer sequentially on a substrate, patterning the mold layer to form a mold electrode hole exposing a portion of the etch stop layer, etching selectively the exposed etch stop layer by an isotropic dry etching process to form a contact electrode hole through the etch stop layer to expose a portion of the substrate, forming a conductive layer on the substrate and removing the conductive layer on the mold layer on the mold layer to form a cylindrical bottom electrode in the mold and contact electrode holes. The isotropic dry etching process may utilize a process gas including main etching gas and selectivity adjusting gas. The selectivity adjusting gas may increase an etch rate of the etch stop layer by more than an etch rate of the mold layer by the isotropic wet etching process.

    摘要翻译: 可以提供具有电容器的半导体器件及其制造方法。 制造半导体器件的方法可以包括在衬底上顺序地形成蚀刻停止层和模制层,图案化模具层以形成露出蚀刻停止层的一部分的模具电极孔,通过以下步骤选择性地蚀刻暴露的蚀刻停止层: 各向同性干蚀刻工艺,以形成通过蚀刻停止层的接触电极孔,以露出衬底的一部分,在衬底上形成导电层,并去除模层上的模层上的导电层,形成圆柱形底电极 在模具和接触电极孔中。 各向同性干蚀刻工艺可以利用包括主蚀刻气体和选择性调节气体的工艺气体。 选择性调节气体可以通过各向同性湿蚀刻工艺增加蚀刻停止层的蚀刻速率超过模具层的蚀刻速率。