TWO TRANSISTOR MEMORY CELLS WITH SOURCE-DRAIN COUPLING IN ONE TRANSISTOR

    公开(公告)号:US20230413547A1

    公开(公告)日:2023-12-21

    申请号:US17843867

    申请日:2022-06-17

    CPC classification number: H01L27/1156 H01L27/11524

    Abstract: IC devices implementing 2T memory cells with source-drain coupling in one transistor, and related assemblies and methods, are disclosed herein. In particular, 2T memory cells presented herein use first and second transistors arranged so that source and drain terminals of the second transistor are coupled to one another. A memory state may be represented by charge indicative of the bit value stored in the second transistor, while the first transistor may serve as a switch to control access to the second transistor. 2T memory cells with source-drain coupling in one transistor provide a promising way to increasing memory cell densities, drive current, and design flexibility in making electrical connections to, or between, various transistor terminals and control lines of memory arrays, thus providing good scalability in the number of 2T memory cells included in memory arrays.

    MEMORY LAYERS BONDED TO LOGIC LAYERS WITH INCLINATION

    公开(公告)号:US20250107108A1

    公开(公告)日:2025-03-27

    申请号:US18473421

    申请日:2023-09-25

    Abstract: An IC device may include memory layers bonded to a logic layer with inclination. An angle between a memory layer and the logic layer may be in a range from approximately 0 to approximately 90 degrees. The memory layers may be over the logic layer. The IC device may include one or more additional logic layers that are parallel to a memory layer or perpendicular to a memory layer. The one or more additional logic layers may be over the logic layer. A memory layer may include memory cells. The logic layer may include logic circuits (e.g., sense amplifier, word line driver, etc.) that control the memory cells. Bit lines (or word lines) in different memory layers may be coupled to each other. A bit line and a word line in a memory layer may be controlled by logic circuits in different logic layers.

    STACKED MEMORY LAYERS WITH UNIFORM ACCESS

    公开(公告)号:US20250107107A1

    公开(公告)日:2025-03-27

    申请号:US18471402

    申请日:2023-09-21

    Abstract: An IC device may include memory layers over a logic layer. A memory layer may include memory arrays and one or more peripheral circuits coupled to the memory arrays. A memory array may include memory cells arranged in rows and columns. A row of memory cells may be associated with a word line. A column of memory cells may be associated with a bit line. The logic layer includes one or more logic circuits that can control data read operations and data write operations of the memory layers. The logic layer may also include a power interconnect, which facilitates power delivery to the memory layers, and a signal interconnect, which facilitates signal transmission within the IC device. The IC device may further include vias that couple the memory layers to the logic layer. Each via may be connected to one or more memory layers and the logic layer.

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