Method of forming contacts for a semiconductor device
    2.
    发明授权
    Method of forming contacts for a semiconductor device 有权
    形成半导体器件的触点的方法

    公开(公告)号:US08222136B2

    公开(公告)日:2012-07-17

    申请号:US12906868

    申请日:2010-10-18

    CPC classification number: H01L21/76814 H01L21/02063 H01L21/76816

    Abstract: 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.

    Abstract translation: 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。

    Chemical mechanical polish process control for improvement in within-wafer thickness uniformity
    3.
    发明授权
    Chemical mechanical polish process control for improvement in within-wafer thickness uniformity 有权
    化学机械抛光过程控制,以提高晶片内厚度均匀性

    公开(公告)号:US08129279B2

    公开(公告)日:2012-03-06

    申请号:US12250239

    申请日:2008-10-13

    CPC classification number: B24B37/013 B24B49/12

    Abstract: A method of performing chemical mechanical polish (CMP) processes on a wafer includes providing the wafer; determining a thickness profile of a feature on a surface of the wafer; and, after the step of determining the thickness profile, performing a high-rate CMP process on the feature using a polish recipe to substantially achieve a within-wafer thickness uniformity of the feature. The polish recipe is determined based on the thickness profile.

    Abstract translation: 在晶片上进行化学机械抛光(CMP)工艺的方法包括提供晶片; 确定晶片表面上的特征的厚度分布; 并且在确定厚度分布的步骤之后,使用抛光配方对特征进行高速率CMP处理,以基本上实现特征的晶片内厚度均匀性。 根据厚度分布确定抛光配方。

    Method of forming a stacked capacitor structure with increased surface area for a DRAM device
    5.
    发明授权
    Method of forming a stacked capacitor structure with increased surface area for a DRAM device 有权
    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

    公开(公告)号:US07023042B2

    公开(公告)日:2006-04-04

    申请号:US10755498

    申请日:2004-01-12

    CPC classification number: H01L28/88 H01L27/10814 H01L27/10852

    Abstract: 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.

    Abstract translation: 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。

    SOI-like structure in a bulk semiconductor substrate and method of forming same
    6.
    发明申请
    SOI-like structure in a bulk semiconductor substrate and method of forming same 有权
    体半导体衬底中的SOI类结构及其形成方法

    公开(公告)号:US20050253194A1

    公开(公告)日:2005-11-17

    申请号:US10847607

    申请日:2004-05-17

    CPC classification number: H01L21/3247 H01L21/76232 H01L21/76283 H01L27/1203

    Abstract: Bulk silicon is transformed into an SOI-like structure by annealing. Trenches are formed in a bulk substrate to define device sites. The lower portions of the trenches are annealed at low pressure in a hydrogen atmosphere. This transforms the lower trench portions to expanded, spheroidal voids that extend under the device sites. Neighboring voids each reside about half way under an intervening site. A silicon-consuming process forms a liner on the walls of the voids, with the liners on neighboring voids abutting to isolate the intervening device site from the substrate and other device sites.

    Abstract translation: 通过退火将体硅转变成SOI样结构。 沟槽形成在大量衬底中以限定器件位置。 沟槽的下部在氢气气氛中在低压下退火。 这将下沟槽部分转变成在器件位置下延伸的膨胀的球状空隙。 相邻的空洞每个居住在中间位置的一半左右。 消耗硅的过程在空隙的壁上形成衬垫,相邻空隙上的衬垫邻接以将介入的器件位置与衬底和其它器件位置隔离。

    Method to control gate CD
    7.
    发明授权
    Method to control gate CD 有权
    控制门光盘的方法

    公开(公告)号:US06235440B1

    公开(公告)日:2001-05-22

    申请号:US09434563

    申请日:1999-11-12

    CPC classification number: G03F7/70625 G03F7/40 H01L22/20 Y10S438/949

    Abstract: The invention is a process for reducing variations in CD from wafer to wafer. It begins by increasing all line widths in the original pattern data file by a fixed amount that is sufficient to ensure that all lines will be wider than the lowest acceptable CD value. Using a reticle generated from this modified data file, the pattern is formed in photoresist and the resulting CD value is determined. If this turns out be outside (above) the acceptable CD range, the amount of deviation from the ideal CD value is determined and fed into suitable software that calculates the control parameters (usually time) for an ashing routine. After ashing, the lines will have been reduced in width by the amount necessary to obtain the correct CD. A fringe benefit of this trimming process is that edge roughness of the photoresist lines is reduced and line feet are removed.

    Abstract translation: 本发明是减少CD从晶片到晶片的变化的方法。 它首先将原始图案数据文件中的所有行宽增加一个固定的量,这足以确保所有行都比最低可接受的CD值宽。 使用由该修改的数据文件生成的掩模版,在光致抗蚀剂中形成图案,并确定所得到的CD值。 如果事实证明在可接受的CD范围之外(以上),则确定与理想CD值的偏差量,并将其馈送到计算灰化程序的控制参数(通常为时间)的合适软件中。 灰化后,线条的宽度减小了获得正确CD所需的量。 这种修整过程的附带优点是减少了光致抗蚀剂线的边缘粗糙度并且去除了线脚。

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