Dielectric layer above floating gate for reducing leakage current
    1.
    发明授权
    Dielectric layer above floating gate for reducing leakage current 有权
    介质层上方浮栅为了减少漏电流

    公开(公告)号:US07919809B2

    公开(公告)日:2011-04-05

    申请号:US12170327

    申请日:2008-07-09

    IPC分类号: H01L29/788

    摘要: A memory system is disclosed that includes a set of non-volatile storage elements. A given memory cell has a dielectric cap above the floating gate. In one embodiment, the dielectric cap resides between the floating gate and a conformal IPD layer. The dielectric cap reduces the leakage current between the floating gate and a control gate. The dielectric cap achieves this reduction by reducing the strength of the electric field at the top of the floating gate, which is where the electric field would be strongest without the dielectric cap for a floating gate having a narrow stem.

    摘要翻译: 公开了一种包括一组非易失性存储元件的存储器系统。 给定的存储单元在浮动栅极上方具有电介质盖。 在一个实施例中,电介质帽位于浮动栅极和共形IPD层之间。 电介质盖减少了浮动栅极和控制栅极之间的漏电流。 电介质盖通过降低浮动栅极顶部的电场的强度来实现这种减小,这是电场将是最强的,而没有用于具有窄的杆的浮动栅极的电介质盖。

    METHOD OF FORMING DIELECTRIC LAYER ABOVE FLOATING GATE FOR REDUCING LEAKAGE CURRENT
    2.
    发明申请
    METHOD OF FORMING DIELECTRIC LAYER ABOVE FLOATING GATE FOR REDUCING LEAKAGE CURRENT 有权
    形成用于降低泄漏电流的浮动栅上的介电层的方法

    公开(公告)号:US20100009503A1

    公开(公告)日:2010-01-14

    申请号:US12170321

    申请日:2008-07-09

    IPC分类号: H01L21/336

    CPC分类号: H01L27/11521 H01L21/28273

    摘要: A method of fabricating a memory system is disclosed that includes a set of non-volatile storage elements. The method includes forming a floating gate having a top and at least two sides. A dielectric cap is formed at the top of the floating gate. An inter-gate dielectric layer is formed around the at least two sides of the floating gate and over the top of the dielectric cap. A control gate is formed over the top of the floating gate, the inter-gate dielectric layer separates the control gate from the floating gate. In one aspect, forming the dielectric cap includes implanting oxygen in the top of the floating gate and heating the floating gate to form the dielectric cap from the implanted oxygen and silicon from which the floating gate was formed.

    摘要翻译: 公开了一种制造存储器系统的方法,其包括一组非易失性存储元件。 该方法包括形成具有顶部和至少两个侧面的浮动栅极。 在浮动栅极的顶部形成介电盖。 在浮栅的至少两侧并且在电介质盖的顶部之上形成栅极间电介质层。 控制栅极形成在浮置栅极的顶部之上,栅极间介质层将控制栅极与浮动栅极分离。 在一个方面,形成电介质盖包括在浮置栅极的顶部注入氧并且加热浮动栅极以从形成浮栅的注入的氧和硅形成电介质盖。

    Method of forming dielectric layer above floating gate for reducing leakage current
    3.
    发明授权
    Method of forming dielectric layer above floating gate for reducing leakage current 有权
    在浮栅上形成介质层以减少漏电流的方法

    公开(公告)号:US07915124B2

    公开(公告)日:2011-03-29

    申请号:US12170321

    申请日:2008-07-09

    IPC分类号: H01L21/8247

    CPC分类号: H01L27/11521 H01L21/28273

    摘要: A method of fabricating a memory system is disclosed that includes a set of non-volatile storage elements. The method includes forming a floating gate having a top and at least two sides. A dielectric cap is formed at the top of the floating gate. An inter-gate dielectric layer is formed around the at least two sides of the floating gate and over the top of the dielectric cap. A control gate is formed over the top of the floating gate, the inter-gate dielectric layer separates the control gate from the floating gate. In one aspect, forming the dielectric cap includes implanting oxygen in the top of the floating gate and heating the floating gate to form the dielectric cap from the implanted oxygen and silicon from which the floating gate was formed.

    摘要翻译: 公开了一种制造存储器系统的方法,其包括一组非易失性存储元件。 该方法包括形成具有顶部和至少两个侧面的浮动栅极。 在浮动栅极的顶部形成介电盖。 在浮栅的至少两侧并且在电介质盖的顶部之上形成栅极间电介质层。 控制栅极形成在浮置栅极的顶部之上,栅极间介质层将控制栅极与浮动栅极分离。 在一个方面,形成电介质盖包括在浮置栅极的顶部注入氧并且加热浮动栅极以从形成浮栅的注入的氧和硅形成电介质盖。

    DIELECTRIC LAYER ABOVE FLOATING GATE FOR REDUCING LEAKAGE CURRENT
    4.
    发明申请
    DIELECTRIC LAYER ABOVE FLOATING GATE FOR REDUCING LEAKAGE CURRENT 有权
    用于降低泄漏电流的浮动门上的介电层

    公开(公告)号:US20100006915A1

    公开(公告)日:2010-01-14

    申请号:US12170327

    申请日:2008-07-09

    IPC分类号: H01L29/00

    摘要: A memory system is disclosed that includes a set of non-volatile storage elements. A given memory cell has a dielectric cap above the floating gate. In one embodiment, the dielectric cap resides between the floating gate and a conformal IPD layer. The dielectric cap reduces the leakage current between the floating gate and a control gate. The dielectric cap achieves this reduction by reducing the strength of the electric field at the top of the floating gate, which is where the electric field would be strongest without the dielectric cap for a floating gate having a narrow stem.

    摘要翻译: 公开了一种包括一组非易失性存储元件的存储器系统。 给定的存储单元在浮动栅极上方具有电介质盖。 在一个实施例中,电介质帽位于浮动栅极和共形IPD层之间。 电介质盖减少了浮动栅极和控制栅极之间的漏电流。 电介质盖通过降低浮动栅极顶部的电场的强度来实现这种减小,这是电场将是最强的,而没有用于具有窄的杆的浮动栅极的电介质盖。

    P-type control gate in non-volatile storage and methods for forming same
    5.
    发明授权
    P-type control gate in non-volatile storage and methods for forming same 有权
    非易失性存储中的P型控制门及其形成方法

    公开(公告)号:US08546214B2

    公开(公告)日:2013-10-01

    申请号:US12887328

    申请日:2010-09-21

    IPC分类号: H01L21/8242

    摘要: Non-voltage storage and techniques for fabricating non-volatile storage are disclosed. In some embodiments, at least a portion of the control gates of non-volatile storage elements are formed from p-type polysilicon. In one embodiment, a lower portion of the control gate is p-type polysilicon. The upper portion of the control gate could be p-type polysilicon, n-type polysilicon, metal, metal nitride, etc. P-type polysilicon in the control gate may not deplete even at high Vpgm. Therefore, a number of problems that could occur if the control gate depleted are mitigated. For example, a memory cell having a control gate that is at least partially p-type polysilicon might be programmed with a lower Vpgm than a memory cell formed from n-type polysilicon.

    摘要翻译: 公开了非电压存储和用于制造非易失性存储器的技术。 在一些实施例中,非易失性存储元件的控制栅极的至少一部分由p型多晶硅形成。 在一个实施例中,控制栅极的下部是p型多晶硅。 控制栅极的上部可以是p型多晶硅,n型多晶硅,金属,金属氮化物等。即使在高Vpgm下,控制栅中的P型多晶硅也可能不会消耗。 因此,如果控制门耗尽,可能会发生的一些问题得到缓解。 例如,具有至少部分p型多晶硅的控制栅极的存储单元可以用比由n型多晶硅形成的存储单元低的Vpgm来编程。

    P-TYPE CONTROL GATE IN NON-VOLATILE STORAGE AND METHODS FOR FORMING SAME
    6.
    发明申请
    P-TYPE CONTROL GATE IN NON-VOLATILE STORAGE AND METHODS FOR FORMING SAME 有权
    非挥发性储存中的P型控制闸门及其形成方法

    公开(公告)号:US20110260235A1

    公开(公告)日:2011-10-27

    申请号:US12887328

    申请日:2010-09-21

    IPC分类号: H01L29/788 H01L21/336

    摘要: Non-voltage storage and techniques for fabricating non-volatile storage are disclosed. In some embodiments, at least a portion of the control gates of non-volatile storage elements are formed from p-type polysilicon. In one embodiment, a lower portion of the control gate is p-type polysilicon. The upper portion of the control gate could be p-type polysilicon, n-type polysilicon, metal, metal nitride, etc. P-type polysilicon in the control gate may not deplete even at high Vpgm. Therefore, a number of problems that could occur if the control gate depleted are mitigated. For example, a memory cell having a control gate that is at least partially p-type polysilicon might be programmed with a lower Vpgm than a memory cell formed from n-type polysilicon.

    摘要翻译: 公开了非电压存储和用于制造非易失性存储器的技术。 在一些实施例中,非易失性存储元件的控制栅极的至少一部分由p型多晶硅形成。 在一个实施例中,控制栅极的下部是p型多晶硅。 控制栅极的上部可以是p型多晶硅,n型多晶硅,金属,金属氮化物等。即使在高Vpgm下,控制栅中的P型多晶硅也可能不会消耗。 因此,如果控制门耗尽,可能会发生的一些问题得到缓解。 例如,具有至少部分p型多晶硅的控制栅极的存储单元可以用比由n型多晶硅形成的存储单元低的Vpgm来编程。

    Ramping Pass Voltage To Enhance Channel Boost In Memory Device, With Optional Temperature Compensation
    7.
    发明申请
    Ramping Pass Voltage To Enhance Channel Boost In Memory Device, With Optional Temperature Compensation 有权
    缓存通过电压,以增强存储器件中的通道升压,具有可选的温度补偿

    公开(公告)号:US20120300550A1

    公开(公告)日:2012-11-29

    申请号:US13113786

    申请日:2011-05-23

    IPC分类号: G11C16/04

    CPC分类号: G11C16/3427 G11C16/10

    摘要: In a non-volatile storage system, one or more substrate channel regions for an unselected NAND string are boosted during programming to inhibit program disturb. A voltage applied to one or more unselected word lines associated with at least a first channel region is increased during a program pulse time period in which a program pulse is applied to a selected word line. The increase can be gradual, in the form of a ramp, or step-wise. The boosting level of the first channel region can be maintained. The increase in the voltage applied to the one or more unselected word lines can vary with temperature as well. Before the program pulse time period, the voltage applied to the one or more unselected word lines can be ramped up at a faster rate for a second, adjacent channel region than for the first channel region, to help isolate the channel regions.

    摘要翻译: 在非易失性存储系统中,用于未选择的NAND串的一个或多个衬底沟道区在编程期间升高以抑制编程干扰。 在将编程脉冲施加到所选字线的编程脉冲时间段期间,施加到与至少第一信道区域相关联的一个或多个未选择字线的电压增加。 增加可以是渐进的,以斜坡的形式,或逐步的。 可以维持第一通道区域的升压水平。 施加到一个或多个未选择字线的电压的增加也随着温度而变化。 在编程脉冲时间段之前,施加到一个或多个未选择字线的电压可以以比第一通道区域更快的速率向第二相邻通道区域上升,以帮助隔离通道区域。

    Ramping pass voltage to enhance channel boost in memory device, with optional temperature compensation
    8.
    发明授权
    Ramping pass voltage to enhance channel boost in memory device, with optional temperature compensation 有权
    斜坡通过电压可增强存储器件的通道升压,并可选择温度补偿

    公开(公告)号:US08526233B2

    公开(公告)日:2013-09-03

    申请号:US13113786

    申请日:2011-05-23

    IPC分类号: G11C11/34

    CPC分类号: G11C16/3427 G11C16/10

    摘要: In a non-volatile storage system, one or more substrate channel regions for an unselected NAND string are boosted during programming to inhibit program disturb. A voltage applied to one or more unselected word lines associated with at least a first channel region is increased during a program pulse time period in which a program pulse is applied to a selected word line. The increase can be gradual, in the form of a ramp, or step-wise. The boosting level of the first channel region can be maintained. The increase in the voltage applied to the one or more unselected word lines can vary with temperature as well. Before the program pulse time period, the voltage applied to the one or more unselected word lines can be ramped up at a faster rate for a second, adjacent channel region than for the first channel region, to help isolate the channel regions.

    摘要翻译: 在非易失性存储系统中,用于未选择的NAND串的一个或多个衬底沟道区在编程期间升高以抑制编程干扰。 在将编程脉冲施加到所选字线的编程脉冲时间段期间,施加到与至少第一信道区域相关联的一个或多个未选择字线的电压增加。 增加可以是渐进的,以斜坡的形式,或逐步的。 可以维持第一通道区域的升压水平。 施加到一个或多个未选择字线的电压的增加也随着温度而变化。 在编程脉冲时间段之前,施加到一个或多个未选择字线的电压可以以比第一通道区域更快的速率向第二相邻通道区域上升,以帮助隔离通道区域。

    Data recovery from blocks with gate shorts
    10.
    发明授权
    Data recovery from blocks with gate shorts 有权
    从具有门短路的块中恢复数据

    公开(公告)号:US09152497B2

    公开(公告)日:2015-10-06

    申请号:US13974997

    申请日:2013-08-23

    摘要: A storage module may include a NAND-type flash memory array and one or more controllers configured to increase gate bias voltage levels applied to gates in the memory array to overcome possible gate shorts and recover data identified as being uncorrectable. The increased gate bias voltages may be applied to gates of a single type of transistor or to different types of transistors in the memory array, including drain select transistors, source select transistors, or floating gate transistors.

    摘要翻译: 存储模块可以包括NAND型闪存阵列和一个或多个控制器,其被配置为增加施加到存储器阵列中的栅极的栅极偏置电压电平,以克服可能的栅极短路并恢复被识别为不可校正的数据。 增加的栅极偏置电压可以施加到单个晶体管的栅极或存储器阵列中的不同类型的晶体管,包括漏极选择晶体管,源极选择晶体管或浮动栅极晶体管。