Method for fabricating a nonvolatile memory cell
    1.
    发明授权
    Method for fabricating a nonvolatile memory cell 有权
    非易失性存储单元的制造方法

    公开(公告)号:US07309632B1

    公开(公告)日:2007-12-18

    申请号:US11735440

    申请日:2007-04-14

    IPC分类号: H01L21/8247

    摘要: A method of fabricating a nonvolatile memory cell includes providing a substrate with a trench, with a sidewall where a tunnel oxide layer and a floating gate are successively formed, forming a control gate in the trench, performing a high density plasma deposition process to form an HDP oxide layer on the top surface of control gate.

    摘要翻译: 一种制造非易失性存储单元的方法包括提供具有沟槽的衬底,其中连续形成隧道氧化物层和浮栅的侧壁,在沟槽中形成控制栅极,执行高密度等离子体沉积工艺以形成 HDP氧化层在控制门的顶面。