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    • 5. 发明申请
    • Methods of forming non-volatile memory device having floating gate
    • 形成具有浮动栅极的非易失性存储器件的方法
    • US20060099756A1
    • 2006-05-11
    • US11268038
    • 2005-11-07
    • Wook-Hyun Kwon
    • Wook-Hyun Kwon
    • H01L21/8238
    • H01L27/11546H01L21/82345H01L27/105H01L27/11526H01L29/66825
    • Embodiments of the present invention are directed to methods for forming non-volatile memory devices. A substrate is provided that has a cell region, a first peripheral region, and second peripheral region. A tunnel insulating layer is formed on the substrate in the cell region. A preliminary floating gate is formed on the tunnel insulating layer in the cell region. A blocking insulating layer is formed on the substrate in the cell region, the first peripheral region, and the second peripheral region. A conductive layer is formed on the blocking insulating layer in the cell region, the first peripheral region, and the second peripheral region. The conductive layer and the blocking insulating layer in the first and second peripheral regions are removed to expose at least a portion of the substrate in the first and second peripheral regions. First and second gate insulating layers are respectively formed on the exposed substrate of the first and second peripheral regions. An undoped silicon layer is formed on the substrate in the cell region, the first peripheral region, and the second peripheral region. The undoped silicon layer in the first peripheral region is doped with impurities of a first-conductivity-type. The undoped silicon layer in the second peripheral region is doped with impurities of a second-conductivity-type.
    • 本发明的实施例涉及用于形成非易失性存储器件的方法。 提供了具有单元区域,第一周边区域和第二外围区域的基板。 在单元区域的基板上形成隧道绝缘层。 在电池区域的隧道绝缘层上形成初步浮栅。 在单元区域,第一周边区域和第二周边区域中的基板上形成阻挡绝缘层。 在单元区域,第一周边区域和第二周边区域中的阻挡绝缘层上形成导电层。 去除第一和第二周边区域中的导电层和阻挡绝缘层,以暴露第一和第二周边区域中的至少一部分基板。 第一和第二栅极绝缘层分别形成在第一和第二周边区域的暴露的基板上。 在单元区域,第一周边区域和第二周边区域的基板上形成未掺杂的硅层。 第一周边区域中未掺杂的硅层掺杂有第一导电类型的杂质。 第二周边区域中未掺杂的硅层掺杂有第二导电类型的杂质。
    • 6. 发明授权
    • Nonvolatile memory, cell array thereof, and method for sensing data therefrom
    • 非易失性存储器,其单元阵列,以及用于检测数据的方法
    • US06501680B1
    • 2002-12-31
    • US10126584
    • 2002-04-22
    • Wook Hyun Kwon
    • Wook Hyun Kwon
    • G11C700
    • H01L29/7887G11C11/5621G11C11/5642G11C16/0458G11C16/26G11C2211/5612H01L27/115
    • Nonvolatile memory, cell array thereof, and method for sensing a data therefrom, the method including the steps of: selecting a flash memory cell having a first floating gate and a second floating gate, a first control gate and a second control gate, and a drain and a source; flowing a current through a first channel under the first floating gate and detecting a current flow through a second channel under the second floating gate, thereby sensing a color state of the second floating gate; flowing a current through the second channel and conducting level writings on the first floating gate, thereby forming different threshold voltages; measuring a cell current of the first channel under the first floating gate; comparing the measured cell current to a reference current, thereby sensing a level state of the first floating gate; and sensing information bits stored in the flash memory cell according to a color state of the second floating gate and a level state of the first floating gate.
    • 非易失性存储器,其单元阵列以及用于检测数据的方法,所述方法包括以下步骤:选择具有第一浮置栅极和第二浮置栅极,第一控制栅极和第二控制栅极的闪存单元,以及 排水和来源; 使电流流过第一浮动栅极下方的第一通道,并检测通过第二浮栅下方的第二通道的电流,从而感测第二浮栅的彩色状态; 使电流流过第二通道并在第一浮栅上导通电平写入,从而形成不同的阈值电压; 测量第一浮动栅下的第一通道的单元电流; 将所测量的电池电流与参考电流进行比较,从而检测第一浮动栅极的电平状态; 以及根据第二浮动栅极的颜色状态和第一浮动栅极的电平状态来感测存储在闪存单元中的信息位。
    • 7. 发明申请
    • Non-volatile memory device capable of reducing threshold voltage distribution
    • 能够降低阈值电压分布的非易失性存储器件
    • US20080094923A1
    • 2008-04-24
    • US11636205
    • 2006-12-09
    • Wook-Hyun Kwon
    • Wook-Hyun Kwon
    • G11C7/00
    • G11C16/3454G11C29/70
    • A method for programming a flash memory device which includes a plurality of memory cells arranged in rows and columns. The method includes programming selected memory cells from among the plurality of memory cells according to loaded data bits. Data bits are read from the programmed selected memory cells. It is determined whether each of the programmed memory cells has been successfully programmed based on the results of the reading step. The programming of memory cells that have been determined to have been successfully programmed are inhibited. The programming, reading, determining and inhibiting steps are repeated until each of the selected memory cells has been determined to have been successfully programmed. A memory cell that has been previously determined to have been successfully programmed and inhibited is uninhibited and subsequently re-programmed when it is determined that the previously inhibited memory cell is no longer successfully programmed.
    • 一种用于编程闪存设备的方法,其包括以行和列排列的多个存储器单元。 该方法包括根据加载的数据位来从多个存储器单元中编程所选择的存储器单元。 从编程的选定的存储单元中读取数据位。 基于读取步骤的结果确定每个已编程的存储器单元是否已被成功编程。 已经确定成功编程的存储器单元的编程被禁止。 重复编程,读取,确定和禁止步骤,直到所选择的存储器单元被确定为已被成功编程。 先前确定已被成功编程和禁止的存储器单元是不受限制的,并且随后在确定先前禁止的存储器单元不再被成功编程时重新编程。
    • 8. 发明授权
    • Selective erase method for flash memory
    • 闪存的选择性擦除方法
    • US07230853B2
    • 2007-06-12
    • US10960542
    • 2004-10-07
    • Wook-Hyun KwonJung-In Han
    • Wook-Hyun KwonJung-In Han
    • G11C16/06
    • G11C16/3445G11C16/16G11C16/3468G11C16/3472G11C2216/18
    • Selective erase method for a flash memory device including a group of memory cells arranged in rows and columns include performing an erase operation on the group of memory cells and verifying the erase operation on the group of memory cells to determine threshold voltages of the memory cells. At least one row of memory cells including memory cells having a threshold voltage lower than a desired erase threshold voltage is identified. A further erase operation is performed on the group of memory cells excluding memory cells of the at least one row of memory cells including memory cells having a threshold voltage lower than a desired erase threshold voltage.
    • 包括排列成行和列的一组存储器单元的闪速存储器件的选择性擦除方法包括对该组存储器单元执行擦除操作,并验证存储器单元组的擦除操作以确定存储器单元的阈值电压。 识别包括具有低于期望的擦除阈值电压的阈值电压的存储单元的至少一行存储单元。 对包括具有低于期望的擦除阈值电压的阈值电压的存储单元的至少一行存储单元的存储单元排除的存储器单元组执行进一步的擦除操作。
    • 9. 发明申请
    • Selective erase method for flash memory
    • 闪存的选择性擦除方法
    • US20060018163A1
    • 2006-01-26
    • US10960542
    • 2004-10-07
    • Wook-Hyun KwonJung-In Han
    • Wook-Hyun KwonJung-In Han
    • G11C16/04
    • G11C16/3445G11C16/16G11C16/3468G11C16/3472G11C2216/18
    • Selective erase method for a flash memory device including a group of memory cells arranged in rows and columns include performing an erase operation on the group of memory cells and verifying the erase operation on the group of memory cells to determine threshold voltages of the memory cells. At least one row of memory cells including memory cells having a threshold voltage lower than a desired erase threshold voltage is identified. A further erase operation is performed on the group of memory cells excluding memory cells of the at least one row of memory cells including memory cells having a threshold voltage lower than a desired erase threshold voltage.
    • 包括排列成行和列的一组存储器单元的闪速存储器件的选择性擦除方法包括对该组存储器单元执行擦除操作,并验证存储器单元组的擦除操作以确定存储器单元的阈值电压。 识别包括具有低于期望的擦除阈值电压的阈值电压的存储单元的至少一行存储单元。 对包括具有低于期望的擦除阈值电压的阈值电压的存储单元的至少一行存储单元的存储单元排除的存储器单元组执行进一步的擦除操作。