3D 1T1C STACKED DRAM STRUCTURE AND METHOD TO FABRICATE

    公开(公告)号:US20240064958A1

    公开(公告)日:2024-02-22

    申请号:US18386487

    申请日:2023-11-02

    Abstract: Embodiments disclosed herein include three-dimensional 3D arrays of memory cells and methods of forming such devices. In an embodiment a memory device comprises, a substrate surface, and a three-dimensional (3D) array of memory cells over the substrate surface. In an embodiment each memory cell comprises a transistor and a capacitor. In an embodiment the transistor of each memory cell comprises, a semiconductor channel, with a first end of the semiconductor channel electrically coupled to a bit line that runs substantially parallel to the substrate surface, and a second end of the semiconductor channel is electrically coupled to the capacitor. The transistor may also comprise a gate dielectric on a surface of the semiconductor channel between the first end and the second end of the semiconductor channel. In an embodiment, the gate dielectric is contacted by a word line that runs substantially perpendicular to the substrate surface.

    SYSTEM DESIGN FOR LOW TEMPERATURE MEMORY

    公开(公告)号:US20230005526A1

    公开(公告)日:2023-01-05

    申请号:US17943044

    申请日:2022-09-12

    Abstract: A system can be designed with memory to operate in a low temperature environment. The low temperature memory can be customized for low temperature operation, having a gate stack to adjust a work function of the memory cell transistors to reduce the threshold voltage (Vth) relative to a standard memory device. The reduced temperature can improve the conductivity of other components within the memory, enabling increased memory array sizes, fewer vertical ground channels for stacked devices, and reduced operating power. Based on the differences in the memory, the memory controller can manage access to the memory device with adjusted control parameters based on lower leakage voltage for the memory cells and lower line resistance for the memory array.

    COMPUTE NEAR MEMORY WITH BACKEND MEMORY

    公开(公告)号:US20220165735A1

    公开(公告)日:2022-05-26

    申请号:US17670248

    申请日:2022-02-11

    Abstract: Examples herein relate to a memory device comprising an eDRAM memory cell, the eDRAM memory cell can include a write circuit formed at least partially over a storage cell and a read circuit formed at least partially under the storage cell; a compute near memory device bonded to the memory device; a processor; and an interface from the memory device to the processor. In some examples, circuitry is included to provide an output of the memory device to emulate output read rate of an SRAM memory device comprises one or more of: a controller, a multiplexer, or a register. Bonding of a surface of the memory device can be made to a compute near memory device or other circuitry. In some examples, a layer with read circuitry can be bonded to a layer with storage cells. Any layers can be bonded together using techniques described herein.

    3D 1T1C STACKED DRAM STRUCTURE AND METHOD TO FABRICATE

    公开(公告)号:US20200227416A1

    公开(公告)日:2020-07-16

    申请号:US16247321

    申请日:2019-01-14

    Abstract: Embodiments disclosed herein include three-dimensional 3D arrays of memory cells and methods of forming such devices. In an embodiment a memory device comprises, a substrate surface, and a three-dimensional (3D) array of memory cells over the substrate surface. In an embodiment each memory cell comprises a transistor and a capacitor. In an embodiment the transistor of each memory cell comprises, a semiconductor channel, with a first end of the semiconductor channel electrically coupled to a bit line that runs substantially parallel to the substrate surface, and a second end of the semiconductor channel is electrically coupled to the capacitor. The transistor may also comprise a gate dielectric on a surface of the semiconductor channel between the first end and the second end of the semiconductor channel. In an embodiment, the gate dielectric is contacted by a word line that runs substantially perpendicular to the substrate surface.

    SELF-ALIGNED REPEATEDLY STACKABLE 3D VERTICAL RRAM

    公开(公告)号:US20200006427A1

    公开(公告)日:2020-01-02

    申请号:US16024684

    申请日:2018-06-29

    Abstract: An integrated circuit structure includes a first material block comprising a first block insulator layer and a first multilayer stack on the first block insulator layer, the first multilayer stack comprising interleaved pillar electrodes and insulator layers. A second material block is stacked on the first material block and comprises a second block insulator layer, and a second multilayer stack on the second block insulator layer, the second multilayer stack comprising interleaved pillar electrodes and insulator layers. At least one pillar extends through the first material block and the second material block, wherein the at least one pillar has a top width at a top of the first and second material blocks that is greater than a bottom width at a bottom of the first and second material blocks.

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