Switching element and method for manufacturing same

    公开(公告)号:US12127485B2

    公开(公告)日:2024-10-22

    申请号:US17421418

    申请日:2020-01-07

    Abstract: A switching element that has reduced switching voltage and leakage current and that demonstrates high reliability and low power consumption is achieved as a result of comprising: a first insulation layer in which first wiring mainly consisting of copper is embedded in a first wiring groove that opens upward; a second insulation layer which is formed on an upper surface of the first insulation layer and the first wiring and has an opening that reaches the first insulation layer and the first wiring; a first electrode which is the portion of the first wiring that is exposed from the opening; an oxygen supply layer which is formed on an upper surface of the second insulation layer, generates oxygen plasma during etching to form the opening in the second insulation layer, and remains at least in the vicinity of the opening of the upper surface of the second insulation layer; an ion conducting layer which is formed on the upper surface of the first insulation layer and the first electrode that are exposed from the opening, an inner surface of the opening of the second insulation layer, and an upper surface of the oxygen supply layer; and a second electrode that is formed on an upper surface of the ion conducting layer.

    SYSTEM-ON-A-CHIP (SOC) INTEGRATION OF RESISTIVE RANDOM-ACCESS MEMORY DEVICES WITH VARYING SWITCHING CHARACTERISTICS

    公开(公告)号:US20240237359A1

    公开(公告)日:2024-07-11

    申请号:US18152072

    申请日:2023-01-09

    Applicant: TetraMem Inc.

    Abstract: An apparatus including a plurality of resistive random-access memory (RRAM) devices is provided. The RRAM devices are fabricated on a single substrate in some embodiments. The apparatus includes an interconnect layer fabricated on the substrate. A first RRAM device of the RRAM devices includes a first bottom electrode, a first top electrode; and a first filament-forming layer fabricated between the first bottom electrode and the first top electrode. A second RRAM device of the RRAM devices includes a second bottom electrode, a second top electrode, and a second filament-forming layer fabricated between the second bottom electrode and the second top electrode. The first bottom electrode and the second bottom electrode are fabricated on multiple metallic pads or metallic vias of the interconnect layer. The first filament-forming layer and the second filament-forming layer include different switching oxides.

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