REDUCTION OF LINE EDGE ROUGHNESS BY CHEMICAL MECHANICAL POLISHING
    1.
    发明申请
    REDUCTION OF LINE EDGE ROUGHNESS BY CHEMICAL MECHANICAL POLISHING 审中-公开
    通过化学机械抛光减少线边缘粗糙度

    公开(公告)号:US20080160256A1

    公开(公告)日:2008-07-03

    申请号:US11618752

    申请日:2006-12-30

    IPC分类号: G03F7/26 B32B1/00

    摘要: The present invention describes a method including: providing a wafer; applying a photoresist over the wafer; forming a first set of features in the photoresist; etching a hard mask below the photoresist to form a second set of features in the hard mask; removing the photoresist; etching a polysilicon below the hardmask to form a third set of features in the polysilicon; removing the hard mask; and reducing a line edge roughness in the third set of features.

    摘要翻译: 本发明描述了一种方法,包括:提供晶片; 在晶片上施加光致抗蚀剂; 在光致抗蚀剂中形成第一组特征; 蚀刻光致抗蚀剂下方的硬掩模以在硬掩模中形成第二组特征; 去除光致抗蚀剂; 在硬掩模之下蚀刻多晶硅以在多晶硅中形成第三组特征; 去除硬面膜; 并减少第三组特征中的线边缘粗糙度。

    Work piece wand and method for processing work pieces using a work piece handling wand

    公开(公告)号:US06558562B2

    公开(公告)日:2003-05-06

    申请号:US09948836

    申请日:2001-09-07

    IPC分类号: B44C122

    CPC分类号: H01L21/68707 G11B23/00

    摘要: A wafer handling wand allows the efficient loading and unloading of semiconductor wafers to and from a CMP apparatus. The wand includes identical work piece gripping, alignment, and loading/unloading mechanisms on the top and bottom sides. A processed wafer can be unloaded from the apparatus onto one side of the wand and an unprocessed wafer can be loaded into the apparatus from the second side. The gripping mechanism includes a support area and a spaced apart moveable gripping finger. Wafer loading is facilitated by a cam attached to the support area that rotates when the cam contacts the apparatus. Upon rotation, the cam provides a surface for directing the work piece into the apparatus. The surface of the cam also includes an alignment aid that can be brought into contact with a reference surface on the apparatus to insure proper alignment between the wand and the apparatus.

    Poly open polish process
    9.
    发明授权
    Poly open polish process 有权
    多孔开放抛光工艺

    公开(公告)号:US07166506B2

    公开(公告)日:2007-01-23

    申请号:US11015151

    申请日:2004-12-17

    IPC分类号: H01L21/8242

    摘要: A method of fabricating microelectronic structure using at least two material removal steps, such as for in a poly open polish process, is disclosed. In one embodiment, the first removal step may be chemical mechanical polishing (CMP) step utilizing a slurry with high selectivity to an interlevel dielectric layer used relative to an etch stop layer abutting a transistor gate. This allows the first CMP step to stop after contacting the etch stop layer, which results in substantially uniform “within die”, “within wafer”, and “wafer to wafer” topography. The removal step may expose a temporary component, such as a polysilicon gate within the transistor gate structure. Once the polysilicon gate is exposed other processes may be employed to produce a transistor gate having desired properties.

    摘要翻译: 公开了一种使用至少两种材料去除步骤制造微电子结构的方法,例如在多孔开式抛光工艺中。 在一个实施例中,第一去除步骤可以是利用相对于邻接晶体管栅极的蚀刻停止层使用的层间介电层具有高选择性的浆料的化学机械抛光(CMP)步骤。 这允许第一CMP步骤在接触蚀刻停止层之后停止,这导致基本上均匀的“在晶片内”,“在晶片内”和“晶片到晶片”形态。 去除步骤可以暴露诸如晶体管栅极结构内的多晶硅栅极的临时元件。 一旦多晶硅栅极被暴露,可以采用其它工艺来产生具有期望特性的晶体管栅极。