Random telegraph signal noise reduction scheme for semiconductor memories

    公开(公告)号:US10510420B2

    公开(公告)日:2019-12-17

    申请号:US16141717

    申请日:2018-09-25

    Inventor: Toru Tanzawa

    Abstract: Embodiments are provided that include a memory device having a memory array including a plurality of access lines and data lines. The memory device further includes a circuit coupled to the plurality of access lines and configured to provide consecutive pulses to a selected one of the plurality of access lines. Each pulse of the consecutive pulses includes a first voltage and a second voltage. The first voltage is greater in magnitude than the second voltage, and the first voltage is applied for a shorter duration than the second voltage.

    APPARATUSES AND METHODS FOR MEASURING AN ELECTRICAL CHARACTERISTIC OF A MODEL SIGNAL LINE AND PROVIDING MEASUREMENT INFORMATION

    公开(公告)号:US20190286777A1

    公开(公告)日:2019-09-19

    申请号:US16432632

    申请日:2019-06-05

    Inventor: Toru Tanzawa

    Abstract: Apparatuses and methods for measuring an electrical characteristic of a model signal line and providing measurement information based at least in part on the measurement of the electrical characteristic. An example apparatus includes a signal line model including a model signal line configured to model electrical characteristics of a signal line. The apparatus further includes a measurement circuit coupled to the signal line model and configured to measure the electrical characteristic of the model signal line responsive to an input signal provided to the model signal line. The measurement circuit is further configured to provide measurement information based at least in part on the measurement to set a signal applied to the signal line.

    Apparatuses and methods for charging a global access line prior to accessing a memory

    公开(公告)号:US10340015B2

    公开(公告)日:2019-07-02

    申请号:US16046527

    申请日:2018-07-26

    Inventor: Toru Tanzawa

    Abstract: Apparatuses and methods for charging a global access line prior to accessing memory are described. An example apparatus may include a memory array of a memory. A plurality of global access lines may be associated with the memory array. The global access line may be charged to a ready-access voltage before any access command has been received by the memory. The global access line may be maintained at the ready-access voltage during memory access operations until the receipt of a post-access command. The post-access command may reset the global access line to an inactive voltage.

    Devices including memory arrays, row decoder circuitries and column decoder circuitries

    公开(公告)号:US10262739B2

    公开(公告)日:2019-04-16

    申请号:US15995626

    申请日:2018-06-01

    Inventor: Toru Tanzawa

    Abstract: Some embodiments include a device having an array of memory cells, a memory control unit at least partially under the array, row decoder circuitry in data communication with the memory control unit, and column decoder circuitry in data communication with the memory control unit. Some embodiments include a device having an array of memory cells, row decoder circuitry and column decoder circuitry. One of the row and column decoder circuitries is within a unit that extends at least partially under the array of memory cells and the other within a unit that is laterally outward of the array of memory cells.

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