Two-step chemical mechanical polish surface planarization technique
    42.
    发明授权
    Two-step chemical mechanical polish surface planarization technique 失效
    两步化学机械抛光表面平面化技术

    公开(公告)号:US06069081A

    公开(公告)日:2000-05-30

    申请号:US430972

    申请日:1995-04-28

    CPC分类号: H01L21/31053

    摘要: A method of planarizing a dielectric coating applied over an underlying structure on an integrated circuit wafer employs a two-step chemical mechanical polishing (CMP) process. The underlying structure is characterized as having elevated areas and recessed areas. The wafer can be prepared by applying a first polish stop on the elevated areas, then depositing a layer of dielectric over at least the recessed areas, and finally depositing a second polish stop over the resulting dielectric coating. In some applications a first polish stop is not required. The first step in the two-step CMP is polishing the second polish stop using a slurry that polishes the second polish stop until the second polish stop is substantially removed over the elevated areas. The second step is polishing the dielectric coating that remains using a second slurry that polishes the dielectric at a faster rate than it polishes either the second or first polish stop.

    摘要翻译: 平面化在集成电路晶片上的下面的结构上施加的电介质涂层的方法采用两步化学机械抛光(CMP)工艺。 底层结构的特征在于具有升高的区域和凹陷区域。 可以通过在升高的区域上施加第一抛光光阑,然后在至少凹陷区域上沉积电介质层,最后在所得到的电介质涂层上沉积第二抛光光阑来制备晶片。 在某些应用中,不需要第一次抛光停止。 两步CMP中的第一步是使用抛光第二抛光止动件的浆料抛光第二抛光停止,直到在升高的区域上基本上移除第二抛光止动件。 第二步骤是抛光使用第二浆料保留的电介质涂层,该第二浆料以比抛光第二或第一抛光光阑更快的速度抛光电介质。

    Polishing method and polishing apparatus
    45.
    发明授权
    Polishing method and polishing apparatus 失效
    抛光方法和抛光装置

    公开(公告)号:US5607718A

    公开(公告)日:1997-03-04

    申请号:US300127

    申请日:1994-09-02

    摘要: This invention provides a polishing method including the steps of forming a film to be polished on a substrate having a recessed portion in its surface so as to fill at least the recessed portion, and selectively leaving the film to be polished behind in the recessed portion by polishing the film by using a polishing agent containing polishing particles and a solvent, and having a pH of 7.5 or more. The invention also provides a polishing apparatus including a polishing agent storage vessel for storing a polishing agent, a turntable for polishing an object to be polished, a polishing agent supply pipe for supplying the polishing agent from the polishing agent storage vessel onto the turntable, a polishing object holding jig for holding the object to be polished such that the surface to be polished of the object opposes the turntable, and a polishing agent supply pipe temperature adjusting unit, connected to the polishing agent supply pipe, for adjusting the temperature of the polishing agent.

    摘要翻译: 本发明提供了一种抛光方法,包括以下步骤:在其表面上具有凹陷部分的基底上形成待研磨的膜,以便至少填充凹部,并且通过在凹部中选择性地将被抛光的膜留在后面 通过使用含有研磨粒子和溶剂的研磨剂,pH为7.5以上来研磨该膜。 本发明还提供了一种抛光装置,其包括:用于存储抛光剂的抛光剂储存容器,用于抛光待抛光对象物的转盘,用于将抛光剂从抛光剂储存容器供应到转台上的抛光剂供给管, 抛光对象保持夹具,用于保持待抛光对象物,使被处理物体的表面与转盘相对;抛光剂供给管温度调节单元,连接到抛光剂供应管,用于调节抛光温度 代理商

    Method and apparatus for polishing a workpiece
    46.
    发明授权
    Method and apparatus for polishing a workpiece 失效
    抛光工件的方法和设备

    公开(公告)号:US5398459A

    公开(公告)日:1995-03-21

    申请号:US156641

    申请日:1993-11-24

    IPC分类号: B24B37/10 B24B37/30 B24B1/00

    CPC分类号: B24B37/102 B24B37/30

    摘要: A workpiece such as a semiconductor wafer is positioned between a turntable and a top ring and polished by an abrasive cloth on the turntable while the top ring is being pressed against the turntable. The top ring has a retaining ring for preventing the workpiece from deviating from the lower surface of the top ring, and the retaining ring has an inside diameter larger than an outside diameter of the workpiece. The rotation of the turntable imparts a pressing force in a direction parallel to the upper surface of the turntable to the workpiece so that an outer periphery of the workpiece contacts an inner periphery of the retaining ring, and the rotation of the retaining ring imparts a rotational force to the workpiece so that the workpiece performs a planetary motion relative to the top ring in the retaining ring.

    摘要翻译: 诸如半导体晶片的工件位于转盘和顶环之间,并且当顶环被压靠在转盘上时,其通过研磨布在转盘上抛光。 顶环具有用于防止工件偏离顶环的下表面的保持环,并且保持环的内径大于工件的外径。 转台的转动使平台于转台上表面的方向向工件施加压力,使得工件的外周与保持环的内周接触,并且保持环的旋转赋予转动 使工件相对于保持环中的顶环执行行星运动。

    Method for production of conjugated diolefin

    公开(公告)号:US10329224B2

    公开(公告)日:2019-06-25

    申请号:US14383479

    申请日:2012-03-13

    摘要: An object of the present invention is to provide a method for production of a high purity conjugated diolefin. The method for production of a conjugated diolefin of the present invention comprises steps of supplying a source gas containing a C4 or higher monoolefin and an oxygen-containing gas into a reactor, bringing a catalyst into contact with the gas mixture, compressing a gas containing a conjugated diolefin produced by an oxidative dehydrogenation reaction to obtain a liquefied gas and rinsing the liquefied gas with water.