Erase operations and apparatus for a memory device
    3.
    发明授权
    Erase operations and apparatus for a memory device 有权
    擦除存储设备的操作和设备

    公开(公告)号:US08369158B2

    公开(公告)日:2013-02-05

    申请号:US12646136

    申请日:2009-12-23

    IPC分类号: G11C11/34

    CPC分类号: G11C16/16

    摘要: Erase operations and apparatus configured to perform the erase operations are suitable for non-volatile memory devices having memory cells arranged in strings. One such method includes biasing select gate control lines of a string of memory cells to a first bias potential, biasing access lines of a pair of the memory cells to a second bias potential and biasing access lines of one or more remaining memory cells to a third potential. A ramping bias potential is applied to channel regions of the string of memory cells substantially concurrently with or subsequent to biasing the select gate control lines and the access lines, and floating the select gate control lines in response to the ramping bias potential reaching a release bias potential between an initial bias potential of the ramping bias potential and a target bias potential of the ramping bias potential.

    摘要翻译: 配置为执行擦除操作的擦除操作和装置适用于具有排列成串的存储单元的非易失性存储器件。 一种这样的方法包括将一串存储器单元的选择栅极控制线偏置到第一偏置电位,将一对存储器单元的访问线偏置到第二偏置电位,并将一个或多个剩余存储器单元的访问线偏置到第三偏置电位 潜在。 斜坡偏置电位基本上与偏置选择栅极控制线和接入线的同时或之后施加到存储器单元串的沟道区,并且响应于斜坡偏置电位达到释放偏压而浮动选择栅极控制线 斜坡偏置电位的初始偏置电位与斜坡偏置电位的目标偏置电位之间的电位。

    ERASE OPERATIONS AND APPARATUS FOR A MEMORY DEVICE
    7.
    发明申请
    ERASE OPERATIONS AND APPARATUS FOR A MEMORY DEVICE 有权
    用于存储器件的擦除操作和装置

    公开(公告)号:US20110149659A1

    公开(公告)日:2011-06-23

    申请号:US12646136

    申请日:2009-12-23

    IPC分类号: G11C16/04 G11C16/06

    CPC分类号: G11C16/16

    摘要: Erase operations and apparatus configured to perform the erase operations are suitable for non-volatile memory devices having memory cells arranged in strings. One such method includes biasing select gate control lines of a string of memory cells to a first bias potential, biasing access lines of a pair of the memory cells to a second bias potential and biasing access lines of one or more remaining memory cells to a third potential. A ramping bias potential is applied to channel regions of the string of memory cells substantially concurrently with or subsequent to biasing the select gate control lines and the access lines, and floating the select gate control lines in response to the ramping bias potential reaching a release bias potential between an initial bias potential of the ramping bias potential and a target bias potential of the ramping bias potential.

    摘要翻译: 配置为执行擦除操作的擦除操作和装置适用于具有排列成串的存储单元的非易失性存储器件。 一种这样的方法包括将一串存储器单元的选择栅极控制线偏置到第一偏置电位,将一对存储器单元的访问线偏置到第二偏置电位,并将一个或多个剩余存储器单元的访问线偏置到第三偏置电位 潜在。 斜坡偏置电位基本上与偏置选择栅极控制线和接入线的同时或之后施加到存储器单元串的沟道区,并且响应于斜坡偏置电位达到释放偏压而浮动选择栅极控制线 斜坡偏置电位的初始偏置电位与斜坡偏置电位的目标偏置电位之间的电位。

    Partial block memory operations
    9.
    发明授权

    公开(公告)号:US10541029B2

    公开(公告)日:2020-01-21

    申请号:US13564458

    申请日:2012-08-01

    摘要: Methods and apparatuses are disclosed, such as those including a block of memory cells that includes strings of charge storage devices. Each of the strings may comprise a plurality of charge storage devices formed in a plurality of tiers. The apparatus may comprise a plurality of access lines shared by the strings. Each of the plurality of access lines may be coupled to the charge storage devices corresponding to a respective tier of the plurality of tiers. The apparatus may comprise a plurality of sub-sources associated with the strings. Each of the plurality of sub-sources may be coupled to a source select gate of each string of a respective subset of a plurality of subsets of the strings, and each sub-source may be independently selectable from other sub-sources to select the strings of its respective subset independently of other strings corresponding to other subsets.