Selective Application Of Word Line Bias To Minimize Fringe Effects In Electromagnetic Fields During Erase Of Nonvolatile Memory
    113.
    发明申请
    Selective Application Of Word Line Bias To Minimize Fringe Effects In Electromagnetic Fields During Erase Of Nonvolatile Memory 有权
    在非易失性存储器擦除期间,字线偏置的选择性应用以最小化电磁场中的边缘效应

    公开(公告)号:US20090147589A1

    公开(公告)日:2009-06-11

    申请号:US11953689

    申请日:2007-12-10

    IPC分类号: G11C16/18

    CPC分类号: G11C16/3418

    摘要: A memory device comprising an optimization component that facilitates erasing memory cells in a substantially homogeneous electromagnetic field and methods that facilitate erasing memory cells in a substantially homogeneous electromagnetic field are presented. The optimization component facilitates selecting a subset of memory cells to be erased at the same time, such that a memory cell in the subset of memory cells has two neighbor memory cells adjacent thereto that are in the subset of memory, or one neighbor memory cell adjacent thereto when the memory cell is an end-row memory cell. The optimization component facilitates performing a Fowler-Nordheim channel erase to erase the subset of memory cells, and a predetermined voltage potential associated with an erase command is applied to each cell of the subset of memory cells to facilitate reducing fringing effect associated with the electromagnetic fields applied to the cells during the erase.

    摘要翻译: 提供了一种存储器件,其包括便于擦除基本上均匀的电磁场中的存储器单元的优化部件,以及便于在基本均匀的电磁场中擦除存储器单元的方法。 优化组件有助于同时选择要擦除的存储器单元的子集,使得存储器单元子集中的存储单元具有与存储单元相邻的两个相邻存储器单元,其位于存储器的子集中,或者相邻的一个相邻存储器单元 当存储器单元是端行存储单元时。 优化组件有助于执行Fowler-Nordheim信道擦除来擦除存储器单元的子集,并且与擦除命令相关联的预定电压电位被施加到存储器单元子集的每个单元,以便于减少与电磁场相关联的边缘效应 在擦除期间应用于细胞。

    SACRIFICIAL NITRIDE AND GATE REPLACEMENT
    114.
    发明申请
    SACRIFICIAL NITRIDE AND GATE REPLACEMENT 有权
    硝酸盐和盖茨更换

    公开(公告)号:US20090061650A1

    公开(公告)日:2009-03-05

    申请号:US11847507

    申请日:2007-08-30

    IPC分类号: H01L21/31

    摘要: Methods of forming a top oxide around a charge storage material layer of a memory cell and methods of improving quality of a top oxide around a charge storage material layer of a memory cell are provided. The method can involve providing a charge storage layer on a semiconductor substrate, a nitride layer on the charge storage layer, and a first poly layer on the nitride layer, and converting at least a portion of the nitride layer to a top oxide. By converting at least a portion of a nitride layer to a top oxide layer, the quality of the resultant top oxide layer can be improved.

    摘要翻译: 提供了在存储单元的电荷存储材料层周围形成顶部氧化物的方法以及提高存储单元的电荷存储材料层周围的顶部氧化物的质量的方法。 该方法可以包括在半导体衬底上提供电荷存储层,电荷存储层上的氮化物层和氮化物层上的第一多晶硅层,并将氮化物层的至少一部分转化为顶部氧化物。 通过将氮化物层的至少一部分转化为顶部氧化物层,可以提高所得顶部氧化物层的质量。

    Reduction of leakage current and program disturbs in flash memory devices
    115.
    发明授权
    Reduction of leakage current and program disturbs in flash memory devices 有权
    减少闪存器件中的漏电流和程序干扰

    公开(公告)号:US07489560B2

    公开(公告)日:2009-02-10

    申请号:US11398414

    申请日:2006-04-05

    IPC分类号: G11C11/34

    摘要: A flash memory system configured in accordance with an example embodiment of the invention employs a virtual ground array architecture. During programming operations, target memory cells are biased with a negative substrate bias voltage to reduce or eliminate leakage current that might otherwise conduct through the target memory cells. The negative substrate bias voltage also reduces the occurrence of program disturbs in cells adjacent to target cells by extending the depletion region deeper below the bit line that corresponds to the drain of the target device. The negative substrate bias voltage may also be applied to target memory cells during verification operations (program verify, soft program verify, erase verify) to reduce or eliminate leakage current that might otherwise introduce error in the verification operations.

    摘要翻译: 根据本发明的示例性实施例配置的闪存系统采用虚拟接地阵列架构。 在编程操作期间,目标存储器单元被负极衬底偏置电压偏置以减少或消除否则可能通过目标存储器单元传导的漏电流。 负衬底偏置电压还通过将耗尽区域延伸到对应于目标器件的漏极的位线下方来减少在与目标单元相邻的单元中的编程干扰的发生。 在验证操作(程序验证,软程序验证,擦除验证)期间,也可以将负的衬底偏置电压施加到目标存储器单元,以减少或消除否则在验证操作中引入错误的泄漏电流。

    ERASING FLASH MEMORY USING ADAPTIVE DRAIN AND/OR GATE BIAS
    117.
    发明申请
    ERASING FLASH MEMORY USING ADAPTIVE DRAIN AND/OR GATE BIAS 有权
    使用自适应排水和/或门偏差擦除闪存

    公开(公告)号:US20080144396A1

    公开(公告)日:2008-06-19

    申请号:US11612863

    申请日:2006-12-19

    IPC分类号: G11C16/16

    摘要: A hot hole erase operation as described herein can be utilized for a flash memory device having an array of memory cells. The erase operation employs an adaptive erase bias voltage scheme where the drain bias voltage (and/or the gate bias voltage) is dynamically adjusted in response to an erase pulse count corresponding to a preliminary erase operation during which a relatively small portion of a sector is erased. The adjustment of the erase bias voltage in this manner enables the rest of the sector to be erased using erase bias voltages that are better suited to the current erase characteristics of the sector.

    摘要翻译: 如本文所述的热孔擦除操作可以用于具有存储器单元阵列的闪存器件。 擦除操作采用自适应擦除偏置电压方案,其中响应于与初步擦除操作相对应的擦除脉冲计数来动态地调节漏极偏置电压(和/或栅极偏置电压),在该擦除脉冲计数期间相对较小部分的扇区是 擦除 以这种方式调整擦除偏置电压使得能够使用更适合于扇区的当前擦除特性的擦除偏置电压来擦除扇区的其余部分。

    METHOD FOR MANUFACTURING A MEMORY DEVICE
    118.
    发明申请
    METHOD FOR MANUFACTURING A MEMORY DEVICE 审中-公开
    用于制造存储器件的方法

    公开(公告)号:US20080096357A1

    公开(公告)日:2008-04-24

    申请号:US11551535

    申请日:2006-10-20

    IPC分类号: H01L21/336

    CPC分类号: H01L27/115 H01L27/11568

    摘要: A method for manufacturing a memory device that includes using a gap-filling material that inhibits charge coupling between memory devices. A semiconductor material is provided that has an active region and an isolation region. A charge trapping structure is formed over the active region and a layer of semiconductor material is formed over the charge trapping structure and the isolation region. A masking structure having sidewalls is formed on the layer of semiconductor material. Spacers are formed adjacent the sidewalls and the layer of semiconductor material is etched to form one or more conductive strips having opposing sides. The one or more conductive strips are formed over the active region. A dielectric material is formed adjacent to the opposing sides of each conductive strip. The dielectric material serves as a gap-filling material. A layer of semiconductor material is formed over the one or more conductive strips.

    摘要翻译: 一种用于制造存储器件的方法,其包括使用禁止存储器件之间的电荷耦合的间隙填充材料。 提供了具有有源区和隔离区的半导体材料。 在有源区上形成电荷俘获结构,在电荷俘获结构和隔离区上形成一层半导体材料。 在半导体材料层上形成具有侧壁的掩模结构。 间隔件邻近侧壁形成,并且半导体材料层被蚀刻以形成具有相对侧面的一个或多个导电条。 一个或多个导电条形成在有源区上。 在每个导电带的相对侧附近形成电介质材料。 介电材料用作间隙填充材料。 在一个或多个导电条上形成半导体材料层。

    METHOD AND APPARATUS FOR SECTOR ERASE OPERATION IN A FLASH MEMORY ARRAY
    119.
    发明申请
    METHOD AND APPARATUS FOR SECTOR ERASE OPERATION IN A FLASH MEMORY ARRAY 有权
    用于在闪存存储阵列中进行扇区擦除操作的方法和装置

    公开(公告)号:US20080084765A1

    公开(公告)日:2008-04-10

    申请号:US11538408

    申请日:2006-10-03

    申请人: Kuo-Tung Chang

    发明人: Kuo-Tung Chang

    IPC分类号: G11C16/04 G11C11/34

    CPC分类号: G11C16/16

    摘要: A memory device is provided which includes a substrate, a common P-well isolated from the substrate, a plurality of sectors, and a common sector selection transistor configured to select one of the sectors for erasure. Each of the sectors share the same common sector select transistor, and the common P-well. The selected sector is configured to be erased by applying appropriate voltages to the selected sector.

    摘要翻译: 提供了一种存储器件,其包括衬底,与衬底隔离的公共P-阱,多个扇区,以及公共扇区选择晶体管,被配置为选择擦除扇区之一。 每个扇区共享相同的公共扇区选择晶体管和普通P阱。 所选择的扇区被配置为通过向选择的扇区施加适当的电压来被擦除。