SI trench between bitline HDP for BVDSS improvement
    5.
    发明授权
    SI trench between bitline HDP for BVDSS improvement 有权
    位线HDP之间的SI沟槽改善BVDSS

    公开(公告)号:US07951675B2

    公开(公告)日:2011-05-31

    申请号:US11957737

    申请日:2007-12-17

    IPC分类号: H01L21/336

    CPC分类号: H01L21/76224 H01L27/10885

    摘要: Memory devices having improved BVdss characteristics and methods of making the memory devices are provided. The memory devices contain bitline dielectrics on bitlines of a semiconductor substrate; first spacers adjacent the side surfaces of the bitline dielectrics and on the upper surface of the semiconductor substrate; a trench in the semiconductor substrate between the first spacers; and second spacers adjacent the side surfaces of the trench. By containing the trench and the first and second spacers between the bitlines, the memory device can improve the electrical isolation between the bitlines, thereby preventing and/or mitigating bitline-to-bitline current leakage and increasing BVdss.

    摘要翻译: 提供了具有改进的BVdss特性的存储器件和制造存储器件的方法。 存储器件在半导体衬底的位线上包含位线电介质; 邻近所述位线电介质的侧表面并在所述半导体衬底的上表面上的第一间隔物; 在所述第一间隔物之间​​的所述半导体衬底中的沟槽; 以及邻近沟槽的侧表面的第二间隔件。 通过在位线之间容纳沟槽和第一和第二间隔物,存储器件可以改善位线之间的电隔离,从而防止和/或减轻位线到位线的电流泄漏并增加BVdss。

    SI TRENCH BETWEEN BITLINE HDP FOR BVDSS IMPROVEMENT
    6.
    发明申请
    SI TRENCH BETWEEN BITLINE HDP FOR BVDSS IMPROVEMENT 有权
    用于BVDSS改进的BITLINE HDP之间的稳定性

    公开(公告)号:US20090152669A1

    公开(公告)日:2009-06-18

    申请号:US11957737

    申请日:2007-12-17

    IPC分类号: H01L21/762 H01L23/58

    CPC分类号: H01L21/76224 H01L27/10885

    摘要: Memory devices having improved BVdss characteristics and methods of making the memory devices are provided. The memory devices contain bitline dielectrics on bitlines of a semiconductor substrate; first spacers adjacent the side surfaces of the bitline dielectrics and on the upper surface of the semiconductor substrate; a trench in the semiconductor substrate between the first spacers; and second spacers adjacent the side surfaces of the trench. By containing the trench and the first and second spacers between the bitlines, the memory device can improve the electrical isolation between the bitlines, thereby preventing and/or mitigating bitline-to-bitline current leakage and increasing BVdss.

    摘要翻译: 提供了具有改进的BVdss特性的存储器件和制造存储器件的方法。 存储器件在半导体衬底的位线上包含位线电介质; 邻近所述位线电介质的侧表面并在所述半导体衬底的上表面上的第一间隔物; 在所述第一间隔物之间​​的所述半导体衬底中的沟槽; 以及邻近沟槽的侧表面的第二间隔件。 通过在位线之间容纳沟槽和第一和第二间隔物,存储器件可以改善位线之间的电隔离,从而防止和/或减轻位线到位线的电流泄漏并增加BVdss。

    Split charge storage node inner spacer process
    7.
    发明授权
    Split charge storage node inner spacer process 有权
    分离电荷存储节点内隔离过程

    公开(公告)号:US07829936B2

    公开(公告)日:2010-11-09

    申请号:US11873822

    申请日:2007-10-17

    IPC分类号: H01L21/331

    摘要: Methods of forming a memory cell containing two split sub-lithographic charge storage nodes on a semiconductor substrate are provided. The methods can involve forming two split sub-lithographic charge storage nodes by using spacer formation techniques. By removing exposed portions of a first poly layer while leaving portions of the first poly layer protected by the spacers, the method can provide two split sub-lithographic first poly gates. Further, by removing exposed portions of a charge storage layer while leaving portions of the charge storage layer protected by the two split sub-lithographic first poly gates, the method can provide two split, narrow portions of the charge storage layer, which subsequently form two split sub-lithographic charge storage nodes.

    摘要翻译: 提供了在半导体衬底上形成包含两个分开的次光刻电荷存储节点的存储单元的方法。 这些方法可以包括通过使用间隔物形成技术形成两个分裂的亚光刻电荷存储节点。 通过去除第一多晶硅层的暴露部分,同时留下被间隔物保护的第一多晶硅层的部分,该方法可以提供两个分裂的次光刻的第一多晶硅栅极。 此外,通过去除电荷存储层的暴露部分,同时保留由两个分割子光刻第一多晶硅栅极保护的电荷存储层的部分,该方法可以提供电荷存储层的两个分开的窄部分,其随后形成两个 拆分次光刻电荷存储节点。

    SPLIT CHARGE STORAGE NODE INNER SPACER PROCESS
    8.
    发明申请
    SPLIT CHARGE STORAGE NODE INNER SPACER PROCESS 有权
    分离式充电储存装置内部空间过程

    公开(公告)号:US20090101963A1

    公开(公告)日:2009-04-23

    申请号:US11873822

    申请日:2007-10-17

    IPC分类号: H01L29/792 H01L21/336

    摘要: Methods of forming a memory cell containing two split sub-lithographic charge storage nodes on a semiconductor substrate are provided. The methods can involve forming two split sub-lithographic charge storage nodes by using spacer formation techniques. By removing exposed portions of a first poly layer while leaving portions of the first poly layer protected by the spacers, the method can provide two split sub-lithographic first poly gates. Further, by removing exposed portions of a charge storage layer while leaving portions of the charge storage layer protected by the two split sub-lithographic first poly gates, the method can provide two split, narrow portions of the charge storage layer, which subsequently form two split sub-lithographic charge storage nodes.

    摘要翻译: 提供了在半导体衬底上形成包含两个分开的次光刻电荷存储节点的存储单元的方法。 这些方法可以包括通过使用间隔物形成技术形成两个分裂的亚光刻电荷存储节点。 通过去除第一多晶硅层的暴露部分,同时留下被间隔物保护的第一多晶硅层的部分,该方法可以提供两个分裂的次光刻的第一多晶硅栅极。 此外,通过去除电荷存储层的暴露部分,同时保留由两个分割子光刻第一多晶硅栅极保护的电荷存储层的部分,该方法可以提供电荷存储层的两个分开的窄部分,其随后形成两个 拆分次光刻电荷存储节点。

    SPLIT CHARGE STORAGE NODE OUTER SPACER PROCESS
    9.
    发明申请
    SPLIT CHARGE STORAGE NODE OUTER SPACER PROCESS 有权
    分离式充电储存节点外部间隔过程

    公开(公告)号:US20090108330A1

    公开(公告)日:2009-04-30

    申请号:US11924169

    申请日:2007-10-25

    IPC分类号: H01L29/792 H01L21/3205

    摘要: Memory cells containing two split sub-lithographic charge storage nodes on a semiconductor substrate and methods for making the memory cells are provided. The methods can involve forming two split sub-lithographic charge storage nodes by using spacer formation techniques. By removing an exposed portion of a fist poly layer between sloping side surfaces or outer surfaces of spacers while leaving portions of the first poly layer protected by the spacers, the method can provide two split sub-lithographic first poly gates. Further, by removing an exposed portion of a charge storage layer between sloping side surfaces or outer surfaces of spacers, the method can provide two split, narrow portions of the charge storage layer, which subsequently form two split sub-lithographic charge storage nodes.

    摘要翻译: 提供了包含半导体衬底上的两个分裂子光刻电荷存储节点的存储单元以及用于制造存储单元的方法。 这些方法可以包括通过使用间隔物形成技术形成两个分裂的亚光刻电荷存储节点。 通过在间隔物的倾斜侧表面或外表面之间除去第一多晶硅层的暴露部分,同时留下被间隔物保护的第一多晶硅层的部分,该方法可以提供两个分裂的次光刻的第一多晶硅栅极。 此外,通过去除间隔物的倾斜侧表面或外表面之间的电荷存储层的暴露部分,该方法可以提供电荷存储层的两个分开的窄部分,其随后形成两个分裂的亚光刻电荷存储节点。

    Split charge storage node outer spacer process
    10.
    发明授权
    Split charge storage node outer spacer process 有权
    分离电荷存储节点外隔离过程

    公开(公告)号:US08039891B2

    公开(公告)日:2011-10-18

    申请号:US12980716

    申请日:2010-12-29

    IPC分类号: H01L29/792

    摘要: Memory cells containing two split sub-lithographic charge storage nodes on a semiconductor substrate and methods for making the memory cells are provided. The methods can involve forming two split sub-lithographic charge storage nodes by using spacer formation techniques. By removing an exposed portion of a fist poly layer between sloping side surfaces or outer surfaces of spacers while leaving portions of the first poly layer protected by the spacers, the method can provide two split sub-lithographic first poly gates. Further, by removing an exposed portion of a charge storage layer between sloping side surfaces or outer surfaces of spacers, the method can provide two split, narrow portions of the charge storage layer, which subsequently form two split sub-lithographic charge storage nodes.

    摘要翻译: 提供了包含半导体衬底上的两个分裂子光刻电荷存储节点的存储单元以及用于制造存储单元的方法。 这些方法可以包括通过使用间隔物形成技术形成两个分裂的亚光刻电荷存储节点。 通过在间隔物的倾斜侧表面或外表面之间除去第一多晶硅层的暴露部分,同时留下被间隔物保护的第一多晶硅层的部分,该方法可以提供两个分裂的次光刻的第一多晶硅栅极。 此外,通过去除间隔物的倾斜侧表面或外表面之间的电荷存储层的暴露部分,该方法可以提供电荷存储层的两个分开的窄部分,其随后形成两个分裂的亚光刻电荷存储节点。