Spin chuck for thin wafer cleaning
    97.
    发明授权
    Spin chuck for thin wafer cleaning 有权
    旋转夹头用于薄晶圆清洗

    公开(公告)号:US09153462B2

    公开(公告)日:2015-10-06

    申请号:US12964097

    申请日:2010-12-09

    IPC分类号: H01L21/687 H01L21/67

    CPC分类号: H01L21/67051 H01L21/68728

    摘要: A device and system for thin wafer cleaning is disclosed. A preferred embodiment comprises a spin chuck having at least three holding clamps. A thin wafer with a wafer frame is mounted on the spin chuck through a tape layer. When the holding clamps are unlocked, there is no interference with the removal and placement of the wafer frame. On the other hand, when the holding clamps are locked, the holding clamps are brought into contact with the outer edge of the wafer frame so as to prevent the wafer frame from moving laterally. Furthermore, the shape of the holding clamps in a locked position is capable of preventing the wafer frame from moving vertically.

    摘要翻译: 公开了用于薄晶片清洁的装置和系统。 优选实施例包括具有至少三个保持夹具的旋转卡盘。 具有晶片框架的薄晶片通过带层安装在旋转卡盘上。 当保持夹具解锁时,不会干扰晶片框架的移除和放置。 另一方面,当保持夹具被锁定时,保持夹具与晶片框架的外边缘接触,以防止晶片框架横向移动。 此外,保持夹具处于锁定位置的形状能够防止晶片框架垂直移动。

    Method and apparatus for thinning a substrate
    99.
    发明授权
    Method and apparatus for thinning a substrate 有权
    减薄基板的方法和装置

    公开(公告)号:US07972969B2

    公开(公告)日:2011-07-05

    申请号:US12043714

    申请日:2008-03-06

    IPC分类号: H01L21/302 H01L21/461

    摘要: A method is provided for controlling substrate thickness. At least one etchant is dispensed from at least one dispenser to a plurality of different locations on a surface of a spinning substrate to perform etching. A thickness of the spinning substrate is monitored at the plurality of locations, so that the thickness of the substrate is monitored at each individual location while dispensing the etchant at that location. A respective amount of etching performed at each individual location is controlled, based on the respective monitored thickness at that location.

    摘要翻译: 提供了一种控制基板厚度的方法。 至少一种蚀刻剂从纺丝衬底的表面从至少一个分配器分配到多个不同位置以进行蚀刻。 在多个位置监测纺丝衬底的厚度,从而在每个单独位置监测衬底的厚度,同时在该位置分配蚀刻剂。 基于在该位置处的相应监视的厚度来控制在每个单独位置执行的相应的蚀刻量。