METHOD OF REMOVING INSULATING LAYER ON SUBSTRATE
    5.
    发明申请
    METHOD OF REMOVING INSULATING LAYER ON SUBSTRATE 审中-公开
    在基板上去除绝缘层的方法

    公开(公告)号:US20080261402A1

    公开(公告)日:2008-10-23

    申请号:US11736006

    申请日:2007-04-17

    IPC分类号: H01L21/302

    CPC分类号: H01L21/31053 H01L21/02065

    摘要: A method of removing an insulating layer on a substrate is described, including a first CMP process and a second CMP process performed in sequence, wherein the polishing slurry used in the first CMP process and that used in the second CMP process have substantially the same pH value that exceeds 7.0. A cleaning step is conducted between the first and the second CMP processes to remove a specific substance which would otherwise cause undesired particles to form in the second CMP process.

    摘要翻译: 描述了去除衬底上的绝缘层的方法,包括依次执行的第一CMP工艺和第二CMP工艺,其中在第一CMP工艺中使用的抛光浆料和在第二CMP工艺中使用的抛光浆料具有基本上相同的pH 价值超过7.0。 在第一和第二CMP工艺之间进行清洁步骤以除去否则会在第二CMP工艺中导致不期望的颗粒形成的特定物质。

    SOLUTION FOR FIXED ABRASIVE CHEMICAL MECHANICAL POLISHING PROCESS AND FIXED ABRASIVE CHEMICAL MECHANICAL POLISHING METHOD
    6.
    发明申请
    SOLUTION FOR FIXED ABRASIVE CHEMICAL MECHANICAL POLISHING PROCESS AND FIXED ABRASIVE CHEMICAL MECHANICAL POLISHING METHOD 审中-公开
    固定磨料化学机械抛光工艺和固定磨料化学机械抛光方法的解决方案

    公开(公告)号:US20080125018A1

    公开(公告)日:2008-05-29

    申请号:US11563579

    申请日:2006-11-27

    IPC分类号: B24B29/02 C09K3/14

    CPC分类号: C09K3/1463 C09G1/02

    摘要: A solution for fixed abrasive chemical mechanical polishing process including a protection constituent, a hydrolysis constituent and water is described. The protection constituent is used to protect a silicon nitride and its concentration is between 0.001 wt % and 10 wt %. The hydrolysis constituent is used to hydrolyze a silicon oxide and its concentration is between 0.001 wt % and 10 wt %. The concentration ofthe water is between 80 wt % and 99.998 wt %.

    摘要翻译: 描述了包括保护组分,水解组分和水的固定磨料化学机械抛光方法。 保护成分用于保护氮化硅,其浓度在0.001wt%至10wt%之间。 水解成分用于水解氧化硅,其浓度在0.001wt%至10wt%之间。 水的浓度在80wt%至99.998wt%之间。