IMPROVED FLASH FORWARD TUNNELING VOLTAGE (FTV) FLASH MEMORY DEVICE
    4.
    发明申请
    IMPROVED FLASH FORWARD TUNNELING VOLTAGE (FTV) FLASH MEMORY DEVICE 审中-公开
    改进的闪存前向隧道电压(FTV)闪存存储器件

    公开(公告)号:US20060076605A1

    公开(公告)日:2006-04-13

    申请号:US11287856

    申请日:2005-11-28

    IPC分类号: H01L29/76

    CPC分类号: H01L29/42324 H01L29/40114

    摘要: A FLASH memory device comprising a substrate having a gate conductor formed thereover is provided. The gate conductor comprises a gate with a floating gate oxide layer formed thereon, the floating gate oxide layer including respective lateral tip portions, whereby the forward tunneling voltage of the FLASH memory is improved. In one embodiment, the respective tip portions have an average width of greater than or equal to about 250 Å.

    摘要翻译: 提供了一种包括其上形成有栅极导体的衬底的闪存器件。 栅极导体包括其上形成有浮置栅极氧化物层的栅极,该浮动栅极氧化物层包括各自的侧向尖端部分,由此提高了闪存存储器的正向隧穿电压。 在一个实施例中,相应的末端部分具有大于或等于约的平均宽度。

    Method to improve flash forward tunneling voltage (FTV) performance
    5.
    发明授权
    Method to improve flash forward tunneling voltage (FTV) performance 失效
    改善闪电前进隧道电压(FTV)性能的方法

    公开(公告)号:US06825085B2

    公开(公告)日:2004-11-30

    申请号:US10290644

    申请日:2002-11-08

    IPC分类号: H01L218247

    摘要: A floating gate structure and a method for forming a floating gate oxide layer comprising the following steps. A structure having a first dielectric layer formed thereover is provided. An oxide layer is formed over the first dielectric layer. A nitride layer is formed over the oxide layer. The nitride layer is patterned to form an opening exposing a portion of the oxide layer. A portion of the first dielectric layer is exposed by removing: the exposed portion of the oxide layer; and portions of the oxide layer underneath the patterned nitride layer adjacent to the opening to form respective undercuts. The exposed portion of the first dielectric layer is oxidized to form the floating gate oxide layer.

    摘要翻译: 浮栅结构和形成浮栅氧化层的方法,包括以下步骤。 提供了一种其上形成有第一介电层的结构。 在第一电介质层上形成氧化物层。 在氧化物层上形成氮化物层。 图案化氮化物层以形成暴露氧化物层的一部分的开口。 第一电介质层的一部分通过去除:氧化物层的暴露部分而被暴露; 以及邻近开口的图案化氮化物层下面的氧化物层的部分,以形成相应的底切。 第一电介质层的暴露部分被氧化以形成浮栅氧化层。

    Method to improve flash forward tunneling voltage (FTV) performance
    7.
    发明申请
    Method to improve flash forward tunneling voltage (FTV) performance 失效
    改善闪电前进隧道电压(FTV)性能的方法

    公开(公告)号:US20050056883A1

    公开(公告)日:2005-03-17

    申请号:US10975672

    申请日:2004-10-28

    摘要: A floating gate structure and a method for forming a floating gate oxide layer comprising the following steps. A structure having a first dielectric layer formed thereover is provided. An oxide layer is formed over the first dielectric layer. A nitride layer is formed over the oxide layer. The nitride layer is patterned to form an opening exposing a portion of the oxide layer. A portion of the first dielectric layer is exposed by removing: the exposed portion of the oxide layer; and portions of the oxide layer underneath the patterned nitride layer adjacent to the opening to form respective undercuts. The exposed portion of the first dielectric layer is oxidized to form the floating gate oxide layer.

    摘要翻译: 浮栅结构和形成浮栅氧化层的方法,包括以下步骤。 提供了一种其上形成有第一介电层的结构。 在第一电介质层上形成氧化物层。 在氧化物层上形成氮化物层。 图案化氮化物层以形成暴露氧化物层的一部分的开口。 第一电介质层的一部分通过去除:氧化物层的暴露部分而被暴露; 以及邻近开口的图案化氮化物层下面的氧化物层的部分,以形成相应的底切。 第一电介质层的暴露部分被氧化以形成浮栅氧化层。