Method of fabricating a planar structure charge trapping memory cell array with rectangular gates and reduced bit line resistance
    41.
    发明授权
    Method of fabricating a planar structure charge trapping memory cell array with rectangular gates and reduced bit line resistance 失效
    制造平面结构电荷捕获具有矩形栅极的存储单元阵列并降低位线电阻的方法

    公开(公告)号:US06855608B1

    公开(公告)日:2005-02-15

    申请号:US10463643

    申请日:2003-06-17

    摘要: A method of fabricating a planar architecture charge trapping dielectric memory cell array with rectangular gates comprises fabricating a multi-layer charge trapping dielectric on the surface of a substrate. The layer adjacent to the substrate may be an oxide. A polysilicon layer is deposited over the charge trapping dielectric. A word line mask is applied over the polysilicon layer to mask linear word lines in a first direction and to expose trench regions there between and the trenches are etched to expose the charge trapping dielectric in the trench regions. A bit line mask is applied over the polysilicon layer to mask gates in a second direction perpendicular to the first direction and to expose bit line regions there between and the bit lines are etched to expose the oxide in the bit line regions. The bit lines are implanted and insulating spacers are fabricated on exposed sidewalls. The oxide is removed to expose the substrate between insulating spacers in the bit line regions and a conductor is fabricated thereon to enhance conductivity of each bit line.

    摘要翻译: 制造具有矩形栅极的平面架构电荷俘获介质存储单元阵列的方法包括在衬底的表面上制造多层电荷俘获电介质。 与衬底相邻的层可以是氧化物。 在电荷捕获电介质上沉积多晶硅层。 在多晶硅层上施加字线掩模以在第一方向上屏蔽线性字线并且在其间露出沟槽区域,并且蚀刻沟槽以暴露沟槽区域中的电荷俘获电介质。 将位线掩模施加在多晶硅层上以在垂直于第一方向的第二方向上屏蔽栅极,并在其间暴露位线区域,并蚀刻位线以暴露位线区域中的氧化物。 植入位线,并在暴露的侧壁上制造绝缘间隔物。 去除氧化物以在位线区域中的绝缘间隔物之间​​露出衬底,并且在其上制造导体以增强每个位线的导电性。

    Memory device having a P+ gate and thin bottom oxide and method of erasing same
    42.
    发明授权
    Memory device having a P+ gate and thin bottom oxide and method of erasing same 有权
    具有P +栅极和薄底部氧化物的存储器件及其擦除方法

    公开(公告)号:US06995423B2

    公开(公告)日:2006-02-07

    申请号:US10878091

    申请日:2004-06-28

    IPC分类号: H01L29/788 H01L29/792

    CPC分类号: H01L29/7923 H01L29/7887

    摘要: A non-volatile memory device includes a semiconductor substrate and an N-type source and drain within the substrate. An oxide-nitride-oxide (ONO) stack is formed over the substrate. The ONO stack includes a thin bottom oxide layer. A P+ polysilicon gate electrode is formed over the ONO stack. The memory device is operative to perform a channel erase operation in which a pair of charge storing cells within the nitride layer are erased simultaneously.

    摘要翻译: 非易失性存储器件包括衬底内的半导体衬底和N型源极和漏极。 在衬底上形成氧化物 - 氧化物 - 氧化物(ONO)堆叠。 ONO堆叠包括薄的底部氧化物层。 在ONO堆叠上形成P + SUPER多晶硅栅电极。 存储器件可操作以执行其中同时擦除氮化物层内的一对电荷存储单元的通道擦除操作。

    Memory device having A P+ gate and thin bottom oxide and method of erasing same
    44.
    发明授权
    Memory device having A P+ gate and thin bottom oxide and method of erasing same 有权
    具有P +栅极和薄底部氧化物的存储器件及其擦除方法

    公开(公告)号:US06885590B1

    公开(公告)日:2005-04-26

    申请号:US10341881

    申请日:2003-01-14

    CPC分类号: H01L29/7923 H01L29/7887

    摘要: A non-volatile memory device includes a semiconductor substrate and an N-type source and drain within the substrate. An oxide-nitride-oxide (ONO) stack is formed over the substrate. The ONO stack includes a thin bottom oxide layer. A P+ polysilicon electrode is formed over the ONO stack. The memory device is operative to perform a channel erase operation in which a pair of charge storing cells with the nitride layer are erased simultaneously.

    摘要翻译: 非易失性存储器件包括衬底内的半导体衬底和N型源极和漏极。 在衬底上形成氧化物 - 氧化物 - 氧化物(ONO)堆叠。 ONO堆叠包括薄的底部氧化物层。 在ONO堆叠上形成P + SUPER多晶硅电极。 存储器件可操作以执行信道擦除操作,其中同时擦除具有氮化物层的一对电荷存储单元。