NEUROMORPHIC COMPUTING SYSTEM AND CURRENT ESTIMATION METHOD USING THE SAME

    公开(公告)号:US20190138881A1

    公开(公告)日:2019-05-09

    申请号:US15803971

    申请日:2017-11-06

    Abstract: A neuromorphic computing system includes a synapse array, a switching circuit, a sensing circuit and a processing circuit. The synapse array includes row lines, column lines and synapses. The processing circuit is coupled to the switching circuit and the sensing circuit and is configured to connect a particular column line in the column lines to the first terminal by using the switching circuit, obtain a first voltage value from the particular column line by using the sensing circuit when the particular line is connected to the first terminal, connect the particular column line to the second terminal by using the switching circuit, obtain a second voltage value from the particular column line by using the sensing circuit when the particular line is connected to the second terminal, and estimate a sum-of-product sensing value according to a voltage difference between the first voltage value and the second voltage value.

    Memory structure and manufacturing method of the same
    25.
    发明授权
    Memory structure and manufacturing method of the same 有权
    内存结构和制造方法相同

    公开(公告)号:US09515258B2

    公开(公告)日:2016-12-06

    申请号:US14729181

    申请日:2015-06-03

    Abstract: A memory structure including an insulating layer, a first electrode layer and a first barrier is provided. The insulating layer has a recess. The first electrode layer is formed in the recess and has a first top surface. The first barrier is formed between the insulating layer and the first electrode layer, and has a second top surface lower than the first top surface. The first top surface and the second top surface are lower than an opening of the recess.

    Abstract translation: 提供了包括绝缘层,第一电极层和第一屏障的存储结构。 绝缘层具有凹部。 第一电极层形成在凹部中并且具有第一顶表面。 第一阻挡层形成在绝缘层和第一电极层之间,并且具有比第一顶表面低的第二顶表面。 第一顶表面和第二顶表面比凹口的开口低。

    Verify scheme for ReRAM
    26.
    发明授权
    Verify scheme for ReRAM 有权
    验证ReRAM方案

    公开(公告)号:US09514815B1

    公开(公告)日:2016-12-06

    申请号:US14877740

    申请日:2015-10-07

    Abstract: Circuitry coupled to a programmable element comprising metal oxide is configured to execute a program-verify operation including: an initial cycle of a program operation and a verify operation, and subsequent cycles. The initial cycle includes an initial instance of the program operation to establish a cell resistance of the programmable element, and an initial instance of the verify operation to determine whether the cell resistance of the memory cell is within the target resistance range. At least one of the subsequent cycles includes an additional pulse having a second polarity to the programmable element, and a subsequent instance of the verify operation. The first polarity of the initial program pulse and the second polarity of the additional pulse have opposite polarities. A subsequent instance of the program operation includes applying a subsequent program pulse having the first polarity to the programmable element.

    Abstract translation: 耦合到包括金属氧化物的可编程元件的电路被配置为执行程序验证操作,包括:程序操作和验证操作的初始循环以及随后的循环。 初始周期包括用于建立可编程元件的单元电阻的程序操作的初始实例,以及用于确定存储器单元的单元电阻是否在目标电阻范围内的验证操作的初始实例。 后续周期中的至少一个包括对可编程元件具有第二极性的附加脉冲以及验证操作的后续实例。 初始编程脉冲的第一极性和附加脉冲的第二极性具有相反的极性。 随后的程序操作实例包括将具有第一极性的后续编程脉冲施加到可编程元件。

    Memory device and method for fabricating the same
    27.
    发明授权
    Memory device and method for fabricating the same 有权
    存储器件及其制造方法

    公开(公告)号:US09466792B2

    公开(公告)日:2016-10-11

    申请号:US14623654

    申请日:2015-02-17

    Abstract: A memory device comprises a substrate, a first electrode layer, a spacer, a memory layer and a second electrode layer. The substrate has a recess. The first electrode layer is formed in the recess and has a top surface exposed from an opening of the recess. The spacer covers on a portion of the top surface, so as to define a contact area on the top surface. The memory layer is formed on the contact area. The second electrode layer is formed on the memory layer and electrically connected to the memory layer.

    Abstract translation: 存储器件包括衬底,第一电极层,间隔物,存储层和第二电极层。 衬底具有凹部。 第一电极层形成在凹部中并且具有从凹部的开口露出的顶表面。 间隔件覆盖在顶表面的一部分上,以便限定顶表面上的接触区域。 存储层形成在接触区域上。 第二电极层形成在存储层上并与存储层电连接。

    Low temperature transition metal oxide for memory device
    29.
    发明授权
    Low temperature transition metal oxide for memory device 有权
    用于存储器件的低温过渡金属氧化物

    公开(公告)号:US08962466B2

    公开(公告)日:2015-02-24

    申请号:US13895059

    申请日:2013-05-15

    Abstract: A metal oxide formed by in situ oxidation assisted by radiation induced photo-acid is described. The method includes depositing a photosensitive material over a metal surface of an electrode. Upon exposure to radiation (for example ultraviolet light), a component, such as a photo-acid generator, of the photosensitive material forms an oxidizing reactant, such as a photo acid, which causes oxidation of the metal at the metal surface. As a result of the oxidation, a layer of metal oxide is formed. The photosensitive material can then be removed, and subsequent elements of the component can be formed in contact with the metal oxide layer. The metal oxide can be a transition metal oxide by oxidation of a transition metal. The metal oxide layer can be applied as a memory element in a programmable resistance memory cell. The metal oxide can be an element of a programmable metallization cell.

    Abstract translation: 描述了通过由辐射诱导的光酸辅助的原位氧化形成的金属氧化物。 该方法包括将感光材料沉积在电极的金属表面上。 感光材料暴露于辐射(例如紫外光)时,诸如光酸产生剂的组分形成氧化反应物,例如导致金属在金属表面氧化的光酸。 作为氧化的结果,形成金属氧化物层。 然后可以去除感光材料,并且可以将元件的后续元件形成为与金属氧化物层接触。 金属氧化物可以通过过渡金属的氧化而成为过渡金属氧化物。 金属氧化物层可以作为可编程电阻存储单元中的存储元件来应用。 金属氧化物可以是可编程金属化电池的元件。

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