SACRIFICIAL NITRIDE AND GATE REPLACEMENT
    3.
    发明申请
    SACRIFICIAL NITRIDE AND GATE REPLACEMENT 有权
    硝酸盐和盖茨更换

    公开(公告)号:US20110237060A1

    公开(公告)日:2011-09-29

    申请号:US13153558

    申请日:2011-06-06

    IPC分类号: H01L21/28

    摘要: Methods of forming a top oxide around a charge storage material layer of a memory cell and methods of improving quality of a top oxide around a charge storage material layer of a memory cell are provided. The method can involve providing a charge storage layer on a semiconductor substrate, a nitride layer on the charge storage layer, and a first poly layer on the nitride layer, and converting at least a portion of the nitride layer to a top oxide. By converting at least a portion of a nitride layer to a top oxide layer, the quality of the resultant top oxide layer can be improved.

    摘要翻译: 提供了在存储单元的电荷存储材料层周围形成顶部氧化物的方法以及提高存储单元的电荷存储材料层周围的顶部氧化物的质量的方法。 该方法可以包括在半导体衬底上提供电荷存储层,电荷存储层上的氮化物层和氮化物层上的第一多晶硅层,并将氮化物层的至少一部分转化为顶部氧化物。 通过将氮化物层的至少一部分转化为顶部氧化物层,可以提高所得顶部氧化物层的质量。

    SACRIFICIAL NITRIDE AND GATE REPLACEMENT
    4.
    发明申请
    SACRIFICIAL NITRIDE AND GATE REPLACEMENT 有权
    硝酸盐和盖茨更换

    公开(公告)号:US20090061650A1

    公开(公告)日:2009-03-05

    申请号:US11847507

    申请日:2007-08-30

    IPC分类号: H01L21/31

    摘要: Methods of forming a top oxide around a charge storage material layer of a memory cell and methods of improving quality of a top oxide around a charge storage material layer of a memory cell are provided. The method can involve providing a charge storage layer on a semiconductor substrate, a nitride layer on the charge storage layer, and a first poly layer on the nitride layer, and converting at least a portion of the nitride layer to a top oxide. By converting at least a portion of a nitride layer to a top oxide layer, the quality of the resultant top oxide layer can be improved.

    摘要翻译: 提供了在存储单元的电荷存储材料层周围形成顶部氧化物的方法以及提高存储单元的电荷存储材料层周围的顶部氧化物的质量的方法。 该方法可以包括在半导体衬底上提供电荷存储层,电荷存储层上的氮化物层和氮化物层上的第一多晶硅层,并将氮化物层的至少一部分转化为顶部氧化物。 通过将氮化物层的至少一部分转化为顶部氧化物层,可以提高所得顶部氧化物层的质量。

    Sacrificial nitride and gate replacement
    5.
    发明授权
    Sacrificial nitride and gate replacement 有权
    牺牲氮化物和栅极替代

    公开(公告)号:US08329598B2

    公开(公告)日:2012-12-11

    申请号:US13153558

    申请日:2011-06-06

    IPC分类号: H01L21/31 H01L21/469

    摘要: Methods of forming a top oxide around a charge storage material layer of a memory cell and methods of improving quality of a top oxide around a charge storage material layer of a memory cell are provided. The method can involve providing a charge storage layer on a semiconductor substrate, a nitride layer on the charge storage layer, and a first poly layer on the nitride layer, and converting at least a portion of the nitride layer to a top oxide. By converting at least a portion of a nitride layer to a top oxide layer, the quality of the resultant top oxide layer can be improved.

    摘要翻译: 提供了在存储单元的电荷存储材料层周围形成顶部氧化物的方法以及提高存储单元的电荷存储材料层周围的顶部氧化物的质量的方法。 该方法可以包括在半导体衬底上提供电荷存储层,电荷存储层上的氮化物层和氮化物层上的第一多晶硅层,并将氮化物层的至少一部分转化为顶部氧化物。 通过将氮化物层的至少一部分转化为顶部氧化物层,可以提高所得顶部氧化物层的质量。

    Sacrificial nitride and gate replacement
    6.
    发明授权
    Sacrificial nitride and gate replacement 有权
    牺牲氮化物和栅极替代

    公开(公告)号:US07981745B2

    公开(公告)日:2011-07-19

    申请号:US11847507

    申请日:2007-08-30

    IPC分类号: H01L21/336

    摘要: Methods of forming a top oxide around a charge storage material layer of a memory cell and methods of improving quality of a top oxide around a charge storage material layer of a memory cell are provided. The method can involve providing a charge storage layer on a semiconductor substrate, a nitride layer on the charge storage layer, and a first poly layer on the nitride layer, and converting at least a portion of the nitride layer to a top oxide. By converting at least a portion of a nitride layer to a top oxide layer, the quality of the resultant top oxide layer can be improved.

    摘要翻译: 提供了在存储单元的电荷存储材料层周围形成顶部氧化物的方法以及提高存储单元的电荷存储材料层周围的顶部氧化物的质量的方法。 该方法可以包括在半导体衬底上提供电荷存储层,电荷存储层上的氮化物层和氮化物层上的第一多晶硅层,并将氮化物层的至少一部分转化为顶部氧化物。 通过将氮化物层的至少一部分转化为顶部氧化物层,可以提高所得顶部氧化物层的质量。

    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。

    TRIPLE POLY-SI REPLACEMENT SCHEME FOR MEMORY DEVICES
    10.
    发明申请
    TRIPLE POLY-SI REPLACEMENT SCHEME FOR MEMORY DEVICES 有权
    用于存储器件的三重多重替换方案

    公开(公告)号:US20080268650A1

    公开(公告)日:2008-10-30

    申请号:US11742003

    申请日:2007-04-30

    IPC分类号: H01L21/302

    CPC分类号: H01L27/11573 H01L21/28282

    摘要: A method of replacing a top oxide around a storage element of a memory device is provided. The method can involve removing a core first poly and core first top oxide in a core region while not removing a periphery first poly in a periphery region on a semiconductor substrate; forming a second top oxide around a storage element in the core region and on the periphery first poly in the periphery region; forming a second poly over the semiconductor substrate in both the core and periphery regions; removing the second poly and second top oxide in the periphery region; and forming a third poly on the semiconductor substrate in both the core and periphery regions.

    摘要翻译: 提供了替换存储器件的存储元件周围的顶部氧化物的方法。 该方法可以包括在核心区域中去除核心的第一多核和第一顶部氧化物,而不去除半导体衬底上的外围区域中的周边第一多晶硅; 在所述芯区域中的存储元件周围和所述周边区域的所述外围第一聚四氟乙烯上形成第二顶部氧化物; 在所述芯和外围区域中在所述半导体衬底上形成第二聚合物; 去除所述周边区域中的所述第二聚合物和第二顶部氧化物; 以及在所述芯和外围区域中在所述半导体衬底上形成第三聚合物。