Probabilistic in-memory computing

    公开(公告)号:US11900979B2

    公开(公告)日:2024-02-13

    申请号:US17508818

    申请日:2021-10-22

    申请人: INTEL CORPORATION

    摘要: Embodiments of the present disclosure are directed toward probabilistic in-memory computing configurations and arrangements, and configurations of probabilistic bit devices (p-bits) for probabilistic in-memory computing. concept with emerging. A probabilistic in-memory computing device includes an array of p-bits, where each p-bit is disposed at or near horizontal and vertical wires. Each p-bit is a time-varying resistor that has a time-varying resistance, which follows a desired probability distribution. The time-varying resistance of each p-bit represents a weight in a weight matrix of a stochastic neural network. During operation, an input voltage is applied to the horizontal wires to control the current through each p-bit. The currents are accumulated in the vertical wires thereby performing respective multiply-and-accumulative (MAC) operations. Other embodiments may be described and/or claimed.

    CHIRAL COUPLING-BASED VALLEYTRONIC MAGNETOELECTRIC SPIN-ORBIT DEVICES

    公开(公告)号:US20240224814A1

    公开(公告)日:2024-07-04

    申请号:US18148240

    申请日:2022-12-29

    申请人: Intel Corporation

    摘要: Valleytronic magnetoelectric spin-orbit (MESO) logic devices comprise a charge-to-spin conversion input module that comprises a magnetoelectric capacitor. The input module converts a differential input voltage into a magnetization orientation of a ferromagnet possessing in-plane anisotropy (IPA) through exchange coupling between the IPA ferromagnet and the magnetoelectric layer of the capacitor. The magnetization orientation of the IPA ferromagnet can represent the logic state of the valleytronic MESO device. A spin-to-charge conversion output module comprises a ferromagnet possessing perpendicular magnetic anisotropy (PMA) and a 2D valleytronic material. The IMA and PMA ferromagnets are chirally-coupled through Dzaloshinskii-Moriya interaction, which causes the perpendicular magnetic orientation of the PMA ferromagnet to switch with the in-plane magnetization orientation of the IPA ferromagnet. The logic state of the device is read through injection of spin-polarized current from the PMA ferromagnet into the 2D valleytronic layer, which converts the injected spin-polarized current into a differential output current.