Semiconductor memory device and method for producing the same
    8.
    发明授权
    Semiconductor memory device and method for producing the same 有权
    半导体存储器件及其制造方法

    公开(公告)号:US07238570B2

    公开(公告)日:2007-07-03

    申请号:US11271739

    申请日:2005-11-14

    IPC分类号: H01L29/788

    摘要: Disclosed is a non-volatile semiconductor memory device that uses a inversion layer provided on a semiconductor substrate as a data line. The memory device can reduce variation of characteristics among memory cells and can reduce bit cost. A plurality of assist gates are formed in the upper part of a p-type well through a gate oxide film. In the upper part of an interlayer insulator that covers those assist gates are formed word lines that are used as control electrodes. The width of those word lines is, for example, 0.1 μm, and each word line is separated from its adjacent word lines by a side wall spacer that is a silicon oxide film having a thickness of about 20 nm.

    摘要翻译: 公开了使用设置在半导体衬底上的反转层作为数据线的非易失性半导体存储器件。 存储器件可以减少存储器单元之间的特性变化并且可以降低位成本。 多个辅助栅极通过栅极氧化膜形成在p型阱的上部。 在覆盖这些辅助栅极的层间绝缘体的上部形成用作控制电极的字线。 这些字线的宽度例如为0.1μm,并且每个字线通过作为厚度为约20nm的氧化硅膜的侧壁间隔物与其相邻字线分开。

    Semiconductor memory device and method for producing the same
    9.
    发明授权
    Semiconductor memory device and method for producing the same 失效
    半导体存储器件及其制造方法

    公开(公告)号:US07622766B2

    公开(公告)日:2009-11-24

    申请号:US11808228

    申请日:2007-06-07

    IPC分类号: H01L29/788

    摘要: Disclosed is a non-volatile semiconductor memory device that uses a inversion layer provided on a semiconductor substrate as a data line. The memory device can reduce variation of characteristics among memory cells and can reduce bit cost. A plurality of assist gates are formed in the upper part of a p-type well through a gate oxide film. In the upper part of an interlayer insulator that covers those assist gates are formed word lines that are used as control electrodes. The width of those word lines is, for example, 0.1 μm, and each word line is separated from its adjacent word lines by a side wall spacer that is a silicon oxide film having a thickness of about 20 nm.

    摘要翻译: 公开了使用设置在半导体衬底上的反转层作为数据线的非易失性半导体存储器件。 存储器件可以减少存储器单元之间的特性变化并且可以降低位成本。 多个辅助栅极通过栅极氧化膜形成在p型阱的上部。 在覆盖这些辅助栅极的层间绝缘体的上部形成用作控制电极的字线。 这些字线的宽度例如为0.1μm,并且每个字线通过作为厚度为约20nm的氧化硅膜的侧壁间隔物与其相邻字线分开。