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    • 1. 发明授权
    • Programming verification method of nonvolatile memory cell, semiconductor memory device, and portable electronic apparatus having the semiconductor memory device
    • 具有半导体存储器件的非易失性存储单元,半导体存储器件和便携式电子设备的编程验证方法
    • US07170791B2
    • 2007-01-30
    • US10848236
    • 2004-05-19
    • Yasuaki IwaseYoshifumi YaoiHiroshi IwataAkihide ShibataYoshinao MorikawaMasaru Nawaki
    • Yasuaki IwaseYoshifumi YaoiHiroshi IwataAkihide ShibataYoshinao MorikawaMasaru Nawaki
    • G11C16/06
    • H01L29/66825G11C11/22G11C16/0475G11C16/3454G11C16/3459H01L21/28273H01L21/28282H01L29/42332H01L29/66833H01L29/7887
    • A programming verification method of verifying programming of a nonvolatile memory cell, the method comprising at least the steps of: selecting first, second, . . . and n-th references corresponding to first, second, . . . and n-th threshold voltages specifying lower limit values of states 1, 2, . . . and n, respectively; applying a programming voltage to the nonvolatile memory cell; sensing a threshold voltage level of the nonvolatile memory cell; comparing the sensed threshold voltage level with the first reference to output a first result; comparing the threshold voltage level with one of the second and third references selected according to the first result to output a second result; and comparing the first and second results with an expectation value and, in the case where the first and second results are equal to the expectation value, indicating that the programming has succeeded, wherein the nonvolatile memory cell includes a gate electrode formed on a semiconductor layer via a gate insulating film, a channel region disposed under the gate electrode, a source and a drain as diffusion regions disposed on both sides of the channel region and having a conductive type opposite to that of the channel region, and memory functional units formed on both sides of the gate electrode and having the function of retaining charges.
    • 一种验证非易失性存储单元的编程的编程验证方法,所述方法至少包括以下步骤:选择第一,第二, 。 。 和对应于第一,第二的第n个引用。 。 。 和指定状态1,2的下限值的第n阈值电压。 。 。 和n; 向非易失性存储单元施加编程电压; 感测所述非易失性存储单元的阈值电压电平; 将感测到的阈值电压电平与第一参考值进行比较以输出第一结果; 将阈值电压电平与根据第一结果选择的第二和第三参考中的一个进行比较以输出第二结果; 以及将所述第一和第二结果与期望值进行比较,并且在所述第一和第二结果等于期望值的情况下,指示所述编程已成功,其中所述非易失性存储单元包括形成在半导体层上的栅电极 通过栅极绝缘膜,设置在栅极电极下方的沟道区域,作为扩散区域的源极和漏极,设置在沟道区域的两侧并且具有与沟道区域的导电类型相反的导电类型,以及存储功能单元 栅电极的两侧并具有保持电荷的功能。
    • 2. 发明授权
    • Semiconductor memory device and portable electronic apparatus
    • 半导体存储器件和便携式电子设备
    • US07102941B2
    • 2006-09-05
    • US10847625
    • 2004-05-18
    • Yoshifumi YaoiHiroshi IwataAkihide ShibataMasaru NawakiYasuaki IwaseYoshinao Morikawa
    • Yoshifumi YaoiHiroshi IwataAkihide ShibataMasaru NawakiYasuaki IwaseYoshinao Morikawa
    • G11C29/00G11C7/00
    • G11C16/0475G11C29/78
    • A semiconductor memory device including (A) a global line; (B) a memory array having (i) a local line, (ii) a decoder connected to the global line and the local line, and (iii) a memory block and a redundant block each constructed by a plurality of memory cells each having a gate electrode formed on a semiconductor layer via a gate insulating film, a channel region disposed below the gate electrode, a diffusion region disposed on both sides of the channel region and having a conductive type opposite to that of the channel region, and a memory functional unit formed on both sides of the gate electrode and having the function of retaining charges, the memory array having the function that when the decoder is usable, the global line is selectively connected to one of the local lines in accordance with address information and, when a defective block is included in the memory blocks and the decoder is unusable, the local line is separated from the global line and the defective block is replaced with the redundant block; and (C) a circuit for making the decoder of the defective block unusable and, only when the defective block is addressed, for making the decoder of the redundant block usable.
    • 一种半导体存储器件,包括(A)全局线; (B)具有(i)本地线的存储器阵列,(ii)连接到全局线和本地线的解码器,以及(iii)由多个存储器单元构成的存储器块和冗余块,每个存储器单元和 通过栅极绝缘膜形成在半导体层上的栅极电极,设置在栅极电极下方的沟道区域,设置在沟道区域两侧并且具有与沟道区域相反的导电类型的扩散区域;以及存储器 功能单元形成在栅电极的两侧并且具有保持电荷的功能,该存储器阵列具有当解码器可用时的功能,全局线根据地址信息有选择地连接到一条局部线路, 当存储块中包含有缺陷块并且解码器不可用时,本地线与全局线分离,并且用冗余块替换缺陷块; 以及(C)用于使缺陷块的解码器不可用的电路,并且仅当寻址缺陷块时,才能使冗余块的解码器可用。
    • 7. 发明授权
    • Writing control method and writing control system of semiconductor storage device, and portable electronic apparatus
    • 半导体存储装置的写入控制方法和写入控制系统以及便携式电子设备
    • US07050337B2
    • 2006-05-23
    • US10848082
    • 2004-05-19
    • Yasuaki IwaseYoshifumi YaoiHiroshi IwataAkihide ShibataYoshinao MorikawaMasaru Nawaki
    • Yasuaki IwaseYoshifumi YaoiHiroshi IwataAkihide ShibataYoshinao MorikawaMasaru Nawaki
    • G11C7/00
    • G11C16/24
    • A writing control system providing high-speed writing to a nonvolatile semiconductor storage device, includes (a) a plurality of memory elements each having: a gate electrode provided on a semiconductor layer with an intervening gate insulating film; a channel region provided beneath the gate electrode; a diffusion region provided on both sides of the channel region, having an opposite polarity to the channel region; and a memory functioning member, provided on both sides of the gate electrode, having a function of holding electric charges, (b) a memory array including a page buffer circuit, and (c) CPU controlling writing to the memory array. The CPU loads a first plane of the page buffer circuit with a first byte of data and writes with the first byte of data stored in the first plane. Further, the CPU writes a second byte of data into the second plane and writes the second byte of data having been stored in the second plane while writing the first byte of data having been stored in the first plane into the memory array.
    • 一种向非易失性半导体存储装置提供高速写入的写入控制系统,包括:(a)多个存储元件,每个存储元件具有:设置在具有中间栅极绝缘膜的半导体层上的栅电极; 设置在栅电极下方的沟道区; 扩散区,设置在沟道区的两侧,具有与沟道区相反的极性; 以及设置在栅电极两侧的具有保持电荷功能的存储器功能部件,(b)包括页缓冲电路的存储器阵列,(c)CPU控制对存储器阵列的写入。 CPU用第一个数据字节加载页面缓冲电路的第一个平面,并用第一个平面中存储的数据的第一个字节进行写入。 此外,CPU将第二字节的数据写入第二平面,并且将已经存储在第一平面中的数据的第一字节写入存储器阵列中,将已经存储在第二平面中的数据的第二字节写入。
    • 10. 发明授权
    • Driver circuit for semiconductor storage device and portable electronic apparatus
    • 用于半导体存储设备和便携式电子设备的驱动电路
    • US06992926B2
    • 2006-01-31
    • US10848605
    • 2004-05-19
    • Yasuaki IwaseYoshifumi YaoiHiroshi IwataAkihide ShibataYoshinao MorikawaMasaru Nawaki
    • Yasuaki IwaseYoshifumi YaoiHiroshi IwataAkihide ShibataYoshinao MorikawaMasaru Nawaki
    • G11C16/06
    • H01L21/28282G11C16/08H01L29/792
    • A semiconductor storage device is provided with a gate electrode, a semiconductor layer, a gate insulating film sandwiched between the gate electrode and the semiconductor layer, a channel region under the gate electrode, diffusion regions provided respectively on two sides of the channel regions and being of the other conductivity region than the channel region, memory elements 1 provided respectively on two sides of the gate electrode and having a function of holding charges, and a word line driver circuit, in which the CMOS technique is used. The driver circuit includes a common node for supplying a potential for activating an output inverter for driving a row word line. While the semiconductor storage device is in a read mode, a CMOS inverter other than the output inverter controls a signal at the common node, the CMOS inverter connected to a read input line. While the semiconductor storage device is in writing/erasing mode, a plurality of writing/erasing transistors connected in series to the node are activated in accordance with an address signal, in order to lower the common node to a low potential.
    • 半导体存储装置设置有栅电极,半导体层,夹在栅极电极和半导体层之间的栅极绝缘膜,栅电极下方的沟道区域,分别设置在沟道区域的两侧的扩散区域, 的另一个导电区域,分别设置在栅电极的两侧并具有保持电荷的功能的存储元件1和使用CMOS技术的字线驱动电路。 驱动器电路包括用于提供用于激活用于驱动行字线的输出反相器的电位的公共节点。 当半导体存储装置处于读取模式时,除了输出反相器之外的CMOS反相器控制公共节点处的信号,CMOS反相器连接到读取输入线。 当半导体存储装置处于写入/擦除模式时,根据地址信号激活与该节点串联连接的多个写/擦除晶体管,以便将公共节点降低到低电位。