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    • 5. 发明授权
    • Unipolar programmable metallization cell
    • 单极可编程金属化电池
    • US09437266B2
    • 2016-09-06
    • US13675923
    • 2012-11-13
    • Feng-Ming LeeYu-Yu LinMing-Hsiu Lee
    • Feng-Ming LeeYu-Yu LinMing-Hsiu Lee
    • H01L45/00G11C11/00H01L27/24
    • G11C11/00H01L27/2409H01L45/085H01L45/1233H01L45/1266H01L45/145
    • A programmable metallization device comprises a first electrode and a second electrode, and a dielectric layer, a conductive ion-barrier layer, and an ion-supplying layer in series between the first and second electrodes. In operation, a conductive bridge is formed or destructed in the dielectric layer to represent a data value using bias voltages having the same polarity, enabling the use of diode access devices. To form a conductive bridge, a bias is applied that is high enough to cause ions to penetrate the conductive ion-barrier layer into the dielectric layer, which then form filaments or bridges. To destruct the conductive bridge, a bias of the same polarity is applied that causes current to flow through the structure, while ion flow is blocked by the conductive ion-barrier layer. As a result of Joule heating, any bridge in the dielectric layer disintegrates.
    • 可编程金属化器件包括在第一和第二电极之间串联的第一电极和第二电极以及电介质层,导电离子阻挡层和离子供给层。 在操作中,在电介质层中形成或破坏导电桥,以使用具有相同极性的偏置电压来表示数据值,从而能够使用二极管接入装置。 为了形成导电桥,施加足够高的偏压,使得离子将导电离子阻挡层穿透到电介质层中,然后形成细丝或桥。 为了破坏导电桥,施加相同极性的偏压,导致电流流过结构,同时离子流被导电离子阻挡层阻挡。 作为焦耳加热的结果,介电层中的任何桥分解。