Semiconductor wafer polishing apparatus with a flexible carrier plate
    1.
    发明授权
    Semiconductor wafer polishing apparatus with a flexible carrier plate 失效
    具有柔性载体板的半导体晶片抛光装置

    公开(公告)号:US5851140A

    公开(公告)日:1998-12-22

    申请号:US800941

    申请日:1997-02-13

    CPC分类号: B24B37/30 B24B37/32

    摘要: A carrier head for a semiconductor wafer polishing apparatus includes a rigid plate which has a major surface with a plurality of open fluid channels. A flexible wafer carrier membrane has a perforated wafer contact section for contacting the semiconductor wafer, and a bellows extending around the wafer contact section. A retaining ring is secured to the rigid plate with a flange on the bellows sandwiched between the plate's major surface and the retaining ring, thereby defining a cavity between the wafer carrier membrane and the rigid plate. A fluid conduit is coupled to the rigid plate allowing a source of a vacuum and a source of pressurized fluid alternately to be connected to the cavity.

    摘要翻译: 用于半导体晶片抛光装置的载体头包括具有主表面和多个开放流体通道的刚性板。 柔性晶片载体膜具有用于接触半导体晶片的穿孔晶片接触部分和围绕晶片接触部分延伸的波纹管。 保持环被固定到刚性板上,其中凸缘夹在板的主表面和保持环之间的波纹管上,从而在晶片载体膜和刚性板之间形成空腔。 流体导管联接到刚性板,允许真空源和加压流体源交替地连接到空腔。

    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。