SEMICONDUCTOR DEVICES WITH AN AIR GAP IN TRENCH ISOLATION DIELECTRIC
    1.
    发明申请
    SEMICONDUCTOR DEVICES WITH AN AIR GAP IN TRENCH ISOLATION DIELECTRIC 审中-公开
    具有气隙隔离绝缘电介质的半导体器件

    公开(公告)号:US20100230741A1

    公开(公告)日:2010-09-16

    申请号:US12711033

    申请日:2010-02-23

    IPC分类号: H01L29/792 H01L29/06

    摘要: A tunnel insulating layer and a charge storage layer are sequentially stacked on a substrate. A recess region penetrates the charge storage layer, the tunnel insulating layer and a portion of the substrate. The recess region is defined by a bottom surface and a side surface extending from the bottom surface. A first dielectric pattern includes a bottom portion covering the bottom surface and inner walls extending from the bottom portion and covering a portion of the side surface of the recess region. A second dielectric pattern is in the recess region between the inner walls of the first dielectric pattern, and the second dielectric pattern enclosing an air gap. The air gap that is enclosed by the second dielectric pattern may extend through a major portion of the second dielectric pattern in a direction away from the bottom surface of the recess region.

    摘要翻译: 隧道绝缘层和电荷存储层依次层叠在基板上。 凹陷区域穿透电荷存储层,隧道绝缘层和基底的一部分。 凹陷区域由底表面和从底表面延伸的侧表面限定。 第一电介质图案包括覆盖底面的底部和从底部延伸并覆盖凹部区域的侧表面的一部分的内壁。 第二电介质图案位于第一电介质图案的内壁之间的凹陷区域中,并且第二电介质图案包围气隙。 由第二电介质图案包围的空气间隙可以沿着远离凹部区域的底表面的方向延伸穿过第二电介质图案的主要部分。

    Vertical memory devices and methods of manufacturing the same
    4.
    发明授权
    Vertical memory devices and methods of manufacturing the same 有权
    垂直存储器件及其制造方法

    公开(公告)号:US09343475B2

    公开(公告)日:2016-05-17

    申请号:US14155842

    申请日:2014-01-15

    摘要: In a method of a vertical memory device, insulation layers and sacrificial layers are alternately and repeatedly formed on a substrate. A hole is formed through the insulation layers and the sacrificial layers that expose a top surface of the substrate. Then, an interior portion of the hole may be enlarged. A semiconductor pattern is formed to partially fill the enlarged portion of the hole. A blocking layer, a charge storage layer and a tunnel insulation layer may be formed on a sidewall of the hole and the semiconductor pattern. Then, the tunnel insulation layer, the charge storage layer and the blocking layer are partially removed to expose a top surface of the semiconductor pattern. A channel is formed on the exposed top surface of the semiconductor pattern and the tunnel insulation layer. The sacrificial layers are replaced with gate electrodes.

    摘要翻译: 在垂直存储器件的方法中,绝缘层和牺牲层在衬底上交替且重复地形成。 通过绝缘层和暴露衬底顶表面的牺牲层形成一个孔。 然后,可以扩大孔的内部。 半导体图案形成为部分地填充孔的扩大部分。 可以在孔和半导体图案的侧壁上形成阻挡层,电荷存储层和隧道绝缘层。 然后,部分去除隧道绝缘层,电荷存储层和阻挡层,以露出半导体图案的顶表面。 在半导体图案的暴露的顶表面和隧道绝缘层上形成沟道。 牺牲层被栅电极代替。

    Vertical Memory Devices and Methods of Manufacturing the Same
    5.
    发明申请
    Vertical Memory Devices and Methods of Manufacturing the Same 有权
    垂直存储器件及其制造方法

    公开(公告)号:US20150200203A1

    公开(公告)日:2015-07-16

    申请号:US14155842

    申请日:2014-01-15

    摘要: In a method of a vertical memory device, insulation layers and sacrificial layers are alternately and repeatedly formed on a substrate. A hole is formed through the insulation layers and the sacrificial layers that expose a top surface of the substrate. Then, an interior portion of the hole may be enlarged. A semiconductor pattern is formed to partially fill the enlarged portion of the hole. A blocking layer, a charge storage layer and a tunnel insulation layer may be formed on a sidewall of the hole and the semiconductor pattern. Then, the tunnel insulation layer, the charge storage layer and the blocking layer are partially removed to expose a top surface of the semiconductor pattern. A channel is formed on the exposed top surface of the semiconductor pattern and the tunnel insulation layer. The sacrificial layers are replaced with gate electrodes.

    摘要翻译: 在垂直存储器件的方法中,绝缘层和牺牲层在衬底上交替且重复地形成。 通过绝缘层和暴露衬底顶表面的牺牲层形成一个孔。 然后,可以扩大孔的内部。 半导体图案形成为部分地填充孔的扩大部分。 可以在孔和半导体图案的侧壁上形成阻挡层,电荷存储层和隧道绝缘层。 然后,部分去除隧道绝缘层,电荷存储层和阻挡层,以露出半导体图案的顶表面。 在半导体图案的暴露的顶表面和隧道绝缘层上形成沟道。 牺牲层被栅电极代替。