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    • 14. 发明授权
    • Non-volatile memory device with NAND type cell structure
    • 具有NAND型单元结构的非易失性存储器件
    • US5936887A
    • 1999-08-10
    • US910025
    • 1997-08-12
    • Jung-Dal ChoiDong-Jun KimWang-Chul ShinJong-Han Kim
    • Jung-Dal ChoiDong-Jun KimWang-Chul ShinJong-Han Kim
    • H01L21/8247G11C11/56H01L27/10H01L27/115H01L29/788H01L29/792G11C11/34
    • H01L27/115G11C11/5621G11C16/0483H01L27/11521G11C16/24G11C2211/5649G11C7/18
    • A non-volatile memory device is disclosed in which a pair of two adjacent memory cell strings are commonly connected to one bit line and the memory cell strings are selectively driven to obtain a relatively wide pitch margin between two bit lines. The device has a conductive plate line which is located along each memory cell string or a pair of memory cell strings to drive memory cells thereof with a relatively low program voltage to a word line. The memory device comprises a plurality of memory cell strings which are arranged in parallel with one another and each of which extends in the same direction as a bit line 12, and a pair of two adjacent memory cell strings 11a and 11b are commonly connected to the bit line 12. The memory device also comprises a string selector for selecting either the first string 11a or the second string 11b in response to signals from string select lines SSL1 and SSL2, and a plurality of plate lines PLa or 21a and PLb or 21b which are respectively arranged on the first and second strings 11a and 11b. In the memory cell, if voltages having different levels are applied to the control gate of a memory cell of the string selected thus and the plate line, at least more than two coupling voltages are induced to a floating gate of a corresponding memory cell so that two bits of information can be stored in and read out of one memory cell. The memory device has a cell structure in which a pair of two adjacent memory cell strings are commonly connected to one bit line, so that margin width between two bit lines, i.e., a bit line pitch can be relatively widely obtained.
    • 公开了一种非易失性存储器件,其中一对两个相邻的存储器单元串共同连接到一个位线,并且存储器单元串被选择性地驱动以在两个位线之间获得相对较宽的间距余量。 该装置具有沿着每个存储单元串或一对存储单元串定位的导电板线,以将具有相对低的编程电压的存储单元驱动到字线。 存储器件包括彼此并联布置的多个存储单元串,并且每个存储单元串沿与位线12相同的方向延伸,并且一对两个相邻的存储单元串11a和11b共同连接到 存储装置还包括用于响应于来自串选择线SSL1和SSL2的信号以及多个板线PLa或21a和PLb或21b而选择第一串11a或第二串11b的串选择器,其中 分别布置在第一和第二弦11a和11b上。 在存储单元中,如果将具有不同电平的电压施加到由此选择的串的存储单元的控制栅极和板线,则至少两个耦合电压被感应到相应存储单元的浮动栅极,使得 两位信息可以存储在一个存储单元中并从其中读出。 存储器件具有单元结构,其中一对两个相邻的存储单元串共同连接到一个位线,使得可以相对广泛地获得两个位线之间的裕度宽度,即位线间距。
    • 15. 发明授权
    • Integrated circuit memory devices having reduced susceptibility to
inadvertent programming and erasure and methods of operating same
    • 具有降低对无意编程和擦除的敏感性的集成电路存储器件及其操作方法
    • US5734609A
    • 1998-03-31
    • US757266
    • 1996-11-29
    • Jung-dal ChoiDong-Jun Kim
    • Jung-dal ChoiDong-Jun Kim
    • G11C17/00G11C16/04G11C16/06H01L21/8247H01L27/115H01L29/788H01L29/792G11C11/40
    • G11C16/0483
    • Integrated circuit memory devices having reduced susceptibility to inadvertent programming and erasure include an array of memory cells arranged as a plurality of NAND strings of EEPROM cells which share common control lines (e.g., SSL1, SSL2) and word lines (e.g., WL1-WLn). These NAND strings preferably comprise a linear array or chain of EEPROM cells having first and second ends and first and second select transistors (ST1, ST2) coupled (directly or indirectly) to (he first and second ends, respectively. To provide improved program and erase capability, a pair of NAND strings are provided in antiparallel and share a common bit line. However, the pair of NAND strings are formed in respective nonoverlapping well regions in a substrate so that the channel regions of the EEPROM cells in respective NAND strings can be individually controlled (e.g., raised) to prevent inadvertent programming or erasing when cells in adjacent strings are being programmed or erased, respectively.
    • 具有降低的对无意编程和擦除的敏感性的集成电路存储器件包括布置成共享共同控制线(例如,SSL1,SSL2)和字线(例如,WL1-WLn)的多个EEPROM单元的NAND串的存储器单元的阵列, 。 这些NAND串优选地包括具有第一和第二端的线性阵列或EEPROM单元串,以及分别连接(直接或间接)到其第一和第二端的第一和第二选择晶体管(ST1,ST2),以提供改进的程序和 擦除能力,反并联提供一对NAND串并共享一个公共位线,但是这对NAND串形成在衬底中的各个非重叠阱区中,使得各个NAND串中的EEPROM单元的沟道区可以 分别控制(例如,升高)以防止在相邻串中的单元被编程或擦除时意外编程或擦除。
    • 18. 发明授权
    • Nonvolatile memory cells having split gate structure and methods of fabricating the same
    • 具有分裂栅极结构的非易失性存储单元及其制造方法
    • US06867082B2
    • 2005-03-15
    • US10844240
    • 2004-05-12
    • Jin-Woo KimDong-Jun KimMin-Soo ChoDai-Geun Kim
    • Jin-Woo KimDong-Jun KimMin-Soo ChoDai-Geun Kim
    • G11C16/06H01L21/8247H01L27/115H01L29/788H01L29/792H01L21/8238
    • H01L27/11556H01L27/115
    • Nonvolatile memory cells having a split gate structure and methods of fabricating the same are provided. The nonvolatile memory cells include active regions defined at a predetermined region of a semiconductor substrate. A portion of each of the active regions is etched to form a cell trench region. Insulated floating gates are disposed on a pair of sidewalls parallel with the direction that crosses the active region. A source region is disposed at a bottom surface of the cell trench region. A gap region between the floating gates is filled with a common source line electrically connected to the source region. The common source line is extended along the direction that crosses the active regions. The active regions, which are adjacent to the floating gates, are covered with word lines parallel with the common source line. Drain regions are disposed in the active regions adjacent to the word lines. The drain regions are electrically connected to bit lines that cross over the word lines.
    • 提供具有分裂栅极结构的非易失性存储单元及其制造方法。 非易失性存储单元包括限定在半导体衬底的预定区域的有源区。 每个有源区的一部分被蚀刻以形成单元沟槽区。 绝缘浮动栅极设置在与穿过有源区域的方向平行的一对侧壁上。 源区域设置在单元沟槽区域的底表面处。 浮置栅极之间的间隙区填充有与源极区域电连接的公共源极线。 公共源极线沿着与有源区域交叉的方向延伸。 与浮动栅极相邻的有源区域被与公共源极线平行的字线覆盖。 漏极区域设置在与字线相邻的有源区域中。 漏极区域电连接到跨越字线的位线。
    • 20. 发明授权
    • Nonvolatile memory cells having split gate structure and methods of fabricating the same
    • 具有分裂栅极结构的非易失性存储单元及其制造方法
    • US06753571B2
    • 2004-06-22
    • US10401666
    • 2003-03-28
    • Jin-Woo KimDong-Jun KimMin-Soo ChoDai-Geun Kim
    • Jin-Woo KimDong-Jun KimMin-Soo ChoDai-Geun Kim
    • H01L29788
    • H01L27/11556H01L27/115
    • Nonvolatile memory cells having a split gate structure and methods of fabricating the same are provided. The nonvolatile memory cells include active regions defined at a predetermined region of a semiconductor substrate. A portion of each of the active regions is etched to form a cell trench region. Insulated floating gates are disposed on a pair of sidewalls parallel with the direction that crosses the active region. A source region is disposed at a bottom surface of the cell trench region. A gap region between the floating gates is filled with a common source line electrically connected to the source region. The common source line is extended along the direction that crosses the active regions. The active regions, which are adjacent to the floating gates, are covered with word lines parallel with the common source line. Drain regions are disposed in the active regions adjacent to the word lines. The drain regions are electrically connected to bit lines that cross over the word lines.
    • 提供具有分裂栅极结构的非易失性存储单元及其制造方法。 非易失性存储单元包括限定在半导体衬底的预定区域的有源区。 每个有源区的一部分被蚀刻以形成单元沟槽区。 绝缘浮动栅极设置在与穿过有源区域的方向平行的一对侧壁上。 源区域设置在单元沟槽区域的底表面处。 浮置栅极之间的间隙区填充有与源极区域电连接的公共源极线。 公共源极线沿着与有源区域交叉的方向延伸。 与浮动栅极相邻的有源区域用与公共源极线平行的字线覆盖。 漏极区域设置在与字线相邻的有源区域中。 漏极区域电连接到跨越字线的位线。