Phase change switch with multi face heater configuration

    公开(公告)号:US11563174B2

    公开(公告)日:2023-01-24

    申请号:US16844450

    申请日:2020-04-09

    Abstract: A switching device includes first and second RF terminals disposed over a substrate, one or more strips of phase change material connected between the first and second RF terminals, a region of thermally insulating material that separates the one or more strips of phase change material from the substrate, and a heater structure comprising one or more heating elements that are configured to control a conductive connection between the first and second RF terminals by applying heat to the one or more strips of phase change material. Each of the one or more strips of phase change material includes a first outer face and a second outer face opposite from the first outer face. For each of the one or more strips of phase change material, at least portions of both of the first and second outer faces are disposed against one of the heating elements.

    PHASE CHANGE SWITCH WITH SELF-ALIGNED HEATER AND RF TERMINALS

    公开(公告)号:US20220407004A1

    公开(公告)日:2022-12-22

    申请号:US17350398

    申请日:2021-06-17

    Abstract: A method of forming a phase change switching device includes providing a substrate, forming first and second RF terminals on the substrate, forming a strip of phase change material on the substrate that is connected between the first and second RF terminals, forming a heating element adjacent to the strip of phase change material such that the heating element is configured to control a conductive state of the strip of phase change material. The first and second RF terminals and the heating element are formed by a lithography process that self-aligns the heating element with the first and second RF terminals

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