METHOD FOR FORMING DEVICE ISOLATION LAYER OF SEMICONDUCTOR DEVICE AND NON-VOLATILE MEMORY DEVICE
    1.
    发明申请
    METHOD FOR FORMING DEVICE ISOLATION LAYER OF SEMICONDUCTOR DEVICE AND NON-VOLATILE MEMORY DEVICE 有权
    形成半导体器件和非易失性存储器件的器件隔离层的方法

    公开(公告)号:US20100167496A1

    公开(公告)日:2010-07-01

    申请号:US12473307

    申请日:2009-05-28

    IPC分类号: H01L21/762

    摘要: A method for forming a device isolation layer of a semiconductor device or a non-volatile memory device is provided. A method for forming a device isolation layer of a semiconductor device includes: forming trenches having a first predetermined depth by etching a substrate; forming a first insulation layer having a second predetermined depth inside the trenches; forming a liner oxide layer having a predetermined thickness on internal walls of the trenches with the first insulation layer formed therein; and forming a second insulation layer for forming a device isolation layer over the substrate with the liner oxide layer formed therein, wherein the second insulation layer has a lower etch rate than that of the first insulation layer.

    摘要翻译: 提供了一种用于形成半导体器件或非易失性存储器件的器件隔离层的方法。 一种用于形成半导体器件的器件隔离层的方法包括:通过蚀刻衬底来形成具有第一预定深度的沟槽; 形成在所述沟槽内具有第二预定深度的第一绝缘层; 在其中形成有第一绝缘层的沟槽的内壁上形成具有预定厚度的衬里氧化物层; 以及形成用于在其上形成有衬里氧化物层的衬底上形成器件隔离层的第二绝缘层,其中所述第二绝缘层具有比所述第一绝缘层的蚀刻速率更低的蚀刻速率。

    Method for forming device isolation layer of semiconductor device and non-volatile memory device
    2.
    发明授权
    Method for forming device isolation layer of semiconductor device and non-volatile memory device 有权
    用于形成半导体器件和非易失性存储器件的器件隔离层的方法

    公开(公告)号:US08278185B2

    公开(公告)日:2012-10-02

    申请号:US12473307

    申请日:2009-05-28

    IPC分类号: H01L21/76

    摘要: A method for forming a device isolation layer of a semiconductor device or a non-volatile memory device is provided. A method for forming a device isolation layer of a semiconductor device includes: forming trenches having a first predetermined depth by etching a substrate; forming a first insulation layer having a second predetermined depth inside the trenches; forming a liner oxide layer having a predetermined thickness on internal walls of the trenches with the first insulation layer formed therein; and forming a second insulation layer for forming a device isolation layer over the substrate with the liner oxide layer formed therein, wherein the second insulation layer has a lower etch rate than that of the first insulation layer.

    摘要翻译: 提供了一种用于形成半导体器件或非易失性存储器件的器件隔离层的方法。 一种用于形成半导体器件的器件隔离层的方法包括:通过蚀刻衬底来形成具有第一预定深度的沟槽; 形成在所述沟槽内具有第二预定深度的第一绝缘层; 在其中形成有第一绝缘层的沟槽的内壁上形成具有预定厚度的衬里氧化物层; 以及形成用于在其上形成有衬里氧化物层的衬底上形成器件隔离层的第二绝缘层,其中所述第二绝缘层具有比所述第一绝缘层的蚀刻速率更低的蚀刻速率。