Leakage Current Compensation in Crossbar Array

    公开(公告)号:US20210020235A1

    公开(公告)日:2021-01-21

    申请号:US16517485

    申请日:2019-07-19

    Abstract: A mechanism is described for accommodating variations in the read or write window which are caused by variations in the number of half-selected cells which are in each logic state and share an access line with the target cell. Roughly described, leakage current is detected on the access line in one segment of the read or write operation, and read or write current detected or generated in a second segment of the operation is adjusted to compensate for the detected leakage current. The first segment can be omitted in subsequent read or write operations if the target cell word line address has not changed and the leakage-tracked reference value has not become invalid for other reasons.

    Memory device and operation method thereof

    公开(公告)号:US11605431B2

    公开(公告)日:2023-03-14

    申请号:US17325243

    申请日:2021-05-20

    Abstract: A memory device and an operation method thereof are provided. The memory device comprises: a memory array; a decoding circuit coupled to the memory array, the decoding circuit including a plurality of first transistors, a plurality of second transistors and a plurality of inverters, the first transistors and the second transistors are paired; and a controller coupled to the decoding circuit, wherein the paired first transistors and the paired second transistors are respectively coupled to a corresponding one inverter among the inverters, and respectively coupled to a corresponding one among a plurality of local bit lines or a corresponding one among a plurality of local source lines; the first transistors are coupled to a global bit line; and the second transistors are coupled to a global source line.

    PHASE CHANGE MEMORY APPARATUS AND READ CONTROL METHOD TO REDUCE READ DISTURB AND SNEAK CURRENT PHENOMENA

    公开(公告)号:US20190066778A1

    公开(公告)日:2019-02-28

    申请号:US15687687

    申请日:2017-08-28

    Abstract: A memory device and associated control methods are provided. The memory device is electrically connected to M bit lines and N word lines. The memory device includes a memory array having memory cells and a controller. The memory cells are located at intersections of the M bit lines and the N word lines. A selected memory cell including a storage element and a selector switch is electrically connected to an m-th bit line and an n-th word line. The controller changes a cell cross voltage of the selected memory cell in the first duration, the second duration, and the post duration, respectively. The cell cross voltage in the first duration is greater than the cell cross voltage in the post duration, and the cell cross voltage in the post duration is greater than the cell cross voltage in the second duration.

    Leakage current compensation in crossbar array

    公开(公告)号:US11049557B2

    公开(公告)日:2021-06-29

    申请号:US16517485

    申请日:2019-07-19

    Abstract: A mechanism is described for accommodating variations in the read or write window which are caused by variations in the number of half-selected cells which are in each logic state and share an access line with the target cell. Roughly described, leakage current is detected on the access line in one segment of the read or write operation, and read or write current detected or generated in a second segment of the operation is adjusted to compensate for the detected leakage current. The first segment can be omitted in subsequent read or write operations if the target cell word line address has not changed and the leakage-tracked reference value has not become invalid for other reasons.

    High voltage sustainable output buffer
    7.
    发明授权
    High voltage sustainable output buffer 有权
    高电压可持续输出缓冲器

    公开(公告)号:US08659327B2

    公开(公告)日:2014-02-25

    申请号:US13746374

    申请日:2013-01-22

    Inventor: Yung-Feng Lin

    CPC classification number: H03K17/10 H03K19/018528

    Abstract: An output buffer includes a first output transistor, a first switch, a second switch and a third switch. The first output transistor is connected to a first operational voltage for outputting the first operational voltage as the data signal. The first switch is connected to a bulk of the first output transistor for receiving an enable signal. The second switch is connected to the first switch and a second operational voltage for receiving the enable signal, wherein the second operational voltage is lower than the first operational voltage. The third switch includes a first terminal connected to the bulk of the first output transistor, a control terminal connected to the first switch, and a second terminal connected to the first operational voltage.

    Abstract translation: 输出缓冲器包括第一输出晶体管,第一开关,第二开关和第三开关。 第一输出晶体管连接到用于输出第一工作电压的第一工作电压作为数据信号。 第一开关连接到第一输出晶体管的大部分,用于接收使能信号。 第二开关连接到第一开关和用于接收使能信号的第二工作电压,其中第二工作电压低于第一工作电压。 第三开关包括连接到第一输出晶体管的主体的第一端子,连接到第一开关的控制端子和连接到第一工作电压的第二端子。

    HIGH VOLTAGE SUSTAINABLE OUTPUT BUFFER
    8.
    发明申请
    HIGH VOLTAGE SUSTAINABLE OUTPUT BUFFER 有权
    高电压可持续输出缓冲器

    公开(公告)号:US20130135028A1

    公开(公告)日:2013-05-30

    申请号:US13746374

    申请日:2013-01-22

    Inventor: Yung-Feng Lin

    CPC classification number: H03K17/10 H03K19/018528

    Abstract: An output buffer includes a first output transistor, a first switch, a second switch and a third switch. The first output transistor is connected to a first operational voltage for outputting the first operational voltage as the data signal. The first switch is connected to a bulk of the first output transistor for receiving an enable signal. The second switch is connected to the first switch and a second operational voltage for receiving the enable signal, wherein the second operational voltage is lower than the first operational voltage. The third switch includes a first terminal connected to the bulk of the first output transistor, a control terminal connected to the first switch, and a second terminal connected to the first operational voltage.

    Abstract translation: 输出缓冲器包括第一输出晶体管,第一开关,第二开关和第三开关。 第一输出晶体管连接到用于输出第一工作电压的第一工作电压作为数据信号。 第一开关连接到第一输出晶体管的大部分,用于接收使能信号。 第二开关连接到第一开关和用于接收使能信号的第二工作电压,其中第二工作电压低于第一工作电压。 第三开关包括连接到第一输出晶体管的主体的第一端子,连接到第一开关的控制端子和连接到第一工作电压的第二端子。

    THREE DIMENSION MEMORY DEVICE
    10.
    发明申请

    公开(公告)号:US20230085583A1

    公开(公告)日:2023-03-16

    申请号:US17477229

    申请日:2021-09-16

    Abstract: A three dimension memory device, such as a three dimensional AND flash memory is provided. The three dimension memory device includes a plurality of memory arrays, a plurality of bit line switches, and a plurality of source line switches. The memory array has a plurality of memory cell rows respectively coupled to a plurality of source lines and bit lines. The bit line switches and the source line switches are respectively implemented by a plurality of first transistors and second transistors. The first transistors are coupled to a common bit line and the bit line. The second transistors are coupled to a common source line and the source lines. The first transistors are P-type transistors or an N-type transistors with a triple-well substrate, and the second transistors are P-type transistor or an N-type transistors with a triple-well substrate.

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