Multiple Stack High Voltage Circuit for Memory

    公开(公告)号:US20240386919A1

    公开(公告)日:2024-11-21

    申请号:US18786289

    申请日:2024-07-26

    Abstract: One aspect of this description relates to a memory array. The memory array includes a plurality of N-stack pass gates, a plurality of enable lines, a plurality of NMOS stacks, a plurality of word lines, and a matrix of resistive elements. Each N-stack pass gate includes a stage-1 PMOS core device and a stage-N PMOS core device in series. Each stage-1 PMOS is coupled to a voltage supply. Each enable line drives a stack pass gate. Each N-stack selector includes a plurality of NMOS stacks. Each NMOS stack includes a stage-1 NMOS core device and a stage-N NMOS core device in series. Each stage-1 NMOS core device is coupled to a ground rail. Each word line is driving a stack selector. Each resistive element is coupled between a stack pass gate and a stack selector. Each voltage supply is greater than a breakdown voltage for each of the core devices.

    Switches to reduce routing rails of memory system

    公开(公告)号:US12062408B2

    公开(公告)日:2024-08-13

    申请号:US18361542

    申请日:2023-07-28

    CPC classification number: G11C5/063

    Abstract: Disclosed herein are related to a memory array including a set of memory cells and a set of switches to configure the set of memory cells. In one aspect, each switch is connected between a corresponding local line and a corresponding subset of memory cells. The local clines may be connected to a global line. Local lines may be metal rails, for example, local bit lines or local select lines. A global line may be a metal rail, for example, a global bit line or a global select line. A switch may be enabled or disabled to electrically couple a controller to a selected subset of memory cells through the global line. Accordingly, the set of memory cells can be configured through the global line rather than a number of metal rails to achieve area efficiency.

    Integrated circuit device and methods

    公开(公告)号:US11915787B2

    公开(公告)日:2024-02-27

    申请号:US17815113

    申请日:2022-07-26

    CPC classification number: G11C7/12 G06F30/39 G11C8/08

    Abstract: An integrated circuit (IC) device includes a substrate, and a memory array layer having a plurality of transistors. First through fourth gate contacts are arranged along a first axis, and coupled to underlying gates of the plurality of transistors. First through fifth source/drain contacts in the memory array layer extend along a second axis transverse to the first axis, and are coupled to underlying source/drains of the plurality of transistors. The gate contacts and the source/drain contacts are alternatingly arranged along the first axis. A source line extends along the first axis, and is coupled to the first and fifth source/drain contacts. First and second word lines extend along the first axis, the first word line is coupled to the first and third gate contacts, and the second word line is coupled to the second and fourth gate contacts.

    SWITCHES TO REDUCE ROUTING RAILS OF MEMORY SYSTEM

    公开(公告)号:US20240021220A1

    公开(公告)日:2024-01-18

    申请号:US18361542

    申请日:2023-07-28

    CPC classification number: G11C5/063

    Abstract: Disclosed herein are related to a memory array including a set of memory cells and a set of switches to configure the set of memory cells. In one aspect, each switch is connected between a corresponding local line and a corresponding subset of memory cells. The local clines may be connected to a global line. Local lines may be metal rails, for example, local bit lines or local select lines. A global line may be a metal rail, for example, a global bit line or a global select line. A switch may be enabled or disabled to electrically couple a controller to a selected subset of memory cells through the global line. Accordingly, the set of memory cells can be configured through the global line rather than a number of metal rails to achieve area efficiency.

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