Methods of forming void-free layers in openings of semiconductor substrates
    3.
    发明授权
    Methods of forming void-free layers in openings of semiconductor substrates 失效
    在半导体衬底的开口中形成无空隙层的方法

    公开(公告)号:US07902059B2

    公开(公告)日:2011-03-08

    申请号:US12608579

    申请日:2009-10-29

    IPC分类号: H01L21/3205 H01L21/4763

    CPC分类号: H01L27/11521 H01L27/115

    摘要: In a method of manufacturing a floating gate of a non-volatile semiconductor memory, a pattern is formed on a substrate to have an opening that exposes a portion of the substrate. A first preliminary polysilicon layer is formed on the pattern and the exposed portion of the substrate to substantially fill the opening. A first polysilicon layer is formed by partially etching the first preliminary polysilicon layer until a first void formed in the first preliminary polysilicon layer is exposed. A second polysilicon layer is formed on the first polysilicon layer.

    摘要翻译: 在制造非易失性半导体存储器的浮置栅极的方法中,在衬底上形成图案以具有露出衬底的一部分的开口。 在图案和基板的暴露部分上形成第一初步多晶硅层以基本上填充开口。 通过部分地蚀刻第一初步多晶硅层直到形成在第一初步多晶硅层中的第一空穴露出来形成第一多晶硅层。 在第一多晶硅层上形成第二多晶硅层。

    Methods of Forming Void-Free Layers in Openings of Semiconductor Substrates
    4.
    发明申请
    Methods of Forming Void-Free Layers in Openings of Semiconductor Substrates 失效
    在半导体衬底的开口中形成无空隙层的方法

    公开(公告)号:US20100048015A1

    公开(公告)日:2010-02-25

    申请号:US12608579

    申请日:2009-10-29

    IPC分类号: H01L21/28 H01L21/283

    CPC分类号: H01L27/11521 H01L27/115

    摘要: In a method of manufacturing a floating gate of a non-volatile semiconductor memory, a pattern is formed on a substrate to have an opening that exposes a portion of the substrate. A first preliminary polysilicon layer is formed on the pattern and the exposed portion of the substrate to substantially fill the opening. A first polysilicon layer is formed by partially etching the first preliminary polysilicon layer until a first void formed in the first preliminary polysilicon layer is exposed. A second polysilicon layer is formed on the first polysilicon layer.

    摘要翻译: 在制造非易失性半导体存储器的浮置栅极的方法中,在衬底上形成图案以具有露出衬底的一部分的开口。 在图案和基板的暴露部分上形成第一初步多晶硅层以基本上填充开口。 通过部分地蚀刻第一初步多晶硅层直到形成在第一初步多晶硅层中的第一空穴露出来形成第一多晶硅层。 在第一多晶硅层上形成第二多晶硅层。