Electrically erasable, directly overwritable, multibit single cell
memory elements and arrays fabricated therefrom
    22.
    发明授权
    Electrically erasable, directly overwritable, multibit single cell memory elements and arrays fabricated therefrom 失效
    电可擦除的直接可重写的多单元单元存储元件和由其制造的阵列

    公开(公告)号:US5534711A

    公开(公告)日:1996-07-09

    申请号:US423484

    申请日:1995-04-19

    摘要: The present invention comprises an electrically operated, directly overwritable, multibit, single-cell memory element. The memory element includes a volume of memory material which defines the single cell memory element. The memory material is characterized by: (1) a large dynamic range of electrical resistance values; and (2) the ability to be set at one of a plurality of resistance values within said dynamic range in response to selected electrical input signals so as to provide said single cell with multibit storage capabilities. The memory element also includes a pair of spacedly disposed contacts for supplying the electrical input signal to set the memory material to a selected resistance value within the dynamic range. At least a filamentary portion of the singIe cell memory element being setable, by the selected electrical signal to any resistance value in said dynamic range, regardless of the previous resistance value of said material. The memory element further includes a filamentary portion controlling means disposed between the volume of memory material and at least one of the spacedly disposed contacts. The controlling means defining the size and position of the filamentary portion during electrical formation of the memory element and limiting the size and confining the location of the filamentary portion during use of the memory element, thereby providing for a high current density within the filamentary portion of the single cell memory element upon input of a very low total current electrical signal to the spacedly disposed contacts.

    摘要翻译: 本发明包括电操作的直接覆盖的多位单个单元存储元件。 存储元件包括限定单个单元存储元件的一定量的存储器材料。 记忆材料的特征在于:(1)电阻值的大动态范围; 以及(2)响应于所选择的电输入信号在所述动态范围内被设置为多个电阻值之一的能力,以便向所述单个单元提供多位存储能力。 存储元件还包括一对间隔设置的触点,用于提供电输入信号以将存储器材料设置在动态范围内的所选电阻值。 所述单元存储元件的至少一个细长部分可通过所选择的电信号被设置成所述动态范围内的任何电阻值,而与所述材料的先前电阻值无关。 存储元件还包括设置在存储器材料体积与间隔设置的触点中的至少一个之间的丝状部分控制装置。 控制装置在存储元件的电气形成期间限定丝状部分的尺寸和位置,并且在存储元件的使用期间限制尺寸并限制丝状部分的位置,由此提供丝网部分内的高电流密度 当输入非常低的总电流电信号到间隔布置的触点时,单个单元存储元件。

    Electrically erasable, directly overwritable, multibit single cell
memory elements and arrays fabricated therefrom
    23.
    发明授权
    Electrically erasable, directly overwritable, multibit single cell memory elements and arrays fabricated therefrom 失效
    电可擦除的直接可重写的多单元单元存储元件和由其制造的阵列

    公开(公告)号:US5406509A

    公开(公告)日:1995-04-11

    申请号:US46249

    申请日:1993-04-12

    摘要: The present invention comprises an electrically operated, directly overwritable, multibit, single-cell memory element. The memory element includes a volume of memory material which defines the single cell memory element. The memory material is characterized by: (1) a large dynamic range of electrical resistance values; and (2) the ability to be set at one of a plurality of resistance values within said dynamic range in response to selected electrical input signals so as to provide said single cell with multibit storage capabilities. The memory element also includes a pair of spacedly disposed contacts for supplying the electrical input signal to set the memory material to a selected resistance value within the dynamic range. At least a filamentary portion of the single cell memory element being setable, by the selected electrical signal to any resistance value in said dynamic range, regardless of the previous resistance value of said material. The memory element further includes a filamentary portion controlling means disposed between the volume of memory material and at least one of the spacedly disposed contacts. The controlling means defining the size and position of the filamentary portion during electrical formation of the memory element and limiting the size and confining the location of the filamentary portion during use of the memory element, thereby providing for a high current density within the filamentary portion of the single cell memory element upon input of a very low total current electrical signal to the spacedly disposed contacts.

    摘要翻译: 本发明包括电操作的直接覆盖的多位单个单元存储元件。 存储元件包括限定单个单元存储元件的一定量的存储器材料。 记忆材料的特征在于:(1)电阻值的大动态范围; 以及(2)响应于所选择的电输入信号在所述动态范围内被设置为多个电阻值之一的能力,以便向所述单个单元提供多位存储能力。 存储元件还包括一对间隔设置的触点,用于提供电输入信号以将存储器材料设置在动态范围内的所选电阻值。 所述单个单元存储元件的至少一个细长部分可被所选择的电信号设定到所述动态范围内的任何电阻值,而与所述材料的先前电阻值无关。 存储元件还包括设置在存储器材料体积与间隔设置的触点中的至少一个之间的丝状部分控制装置。 控制装置在存储元件的电气形成期间限定丝状部分的尺寸和位置,并且在存储元件的使用期间限制尺寸并限制丝状部分的位置,由此提供丝网部分内的高电流密度 当输入非常低的总电流电信号到间隔布置的触点时,单个单元存储元件。

    Method of programming multi-layer chalcogenide devices
    25.
    发明授权
    Method of programming multi-layer chalcogenide devices 有权
    编制多层硫属化物装置的方法

    公开(公告)号:US08000125B2

    公开(公告)日:2011-08-16

    申请号:US12178148

    申请日:2008-07-23

    IPC分类号: G11C11/00

    摘要: A method of programming a multi-layer chalcogenide electronic device. The device includes an active region in electrical communication with two terminals, where the active region includes two or more layers. The method includes providing an electrical signal between the two terminals, where the electrical signal alters an electrical characteristic of a layer remote from one of the terminals. In one embodiment, the layer remote from the terminal is a chalcogenide material and the electrical characteristic is resistance. In another embodiment, an electrical characteristic of the layer in contact with the terminal is also altered. The alteration of an electrical characteristic may be caused by a transformation of a chalcogenide material from one structural state to another structural state.

    摘要翻译: 一种编程多层硫族化物电子器件的方法。 该器件包括与两个端子电连通的有源区域,其中有源区域包括两层或更多层。 该方法包括在两个终端之间提供电信号,其中电信号改变远离其中一个终端的层的电特性。 在一个实施例中,远离终端的层是硫族化物材料,并且电特性是电阻。 在另一个实施例中,与终端接触的层的电特性也被改变。 电特性的改变可能是由硫族化物材料从一种结构状态转变为另一种结构状态引起的。

    Multi-layer chalcogenide devices
    26.
    发明授权
    Multi-layer chalcogenide devices 有权
    多层硫属化物装置

    公开(公告)号:US07767992B2

    公开(公告)日:2010-08-03

    申请号:US11451913

    申请日:2006-06-13

    IPC分类号: H01L29/02

    摘要: A multi-layer chalcogenide electronic device. The device includes an active region in electrical communication with two terminals, where the active region includes two or more layers. In one embodiment, the pore region includes two or more chalcogenide materials which differ in chemical composition. In another embodiment, the pore region includes one or more chalcogenide materials and a layer of Sb. The devices offer the advantages of minimal conditioning requirements, fast set speeds, high reset resistances and low set resistances.

    摘要翻译: 多层硫族化物电子器件。 该器件包括与两个端子电连通的有源区域,其中有源区域包括两层或更多层。 在一个实施方案中,孔区域包括化学组成不同的两种或更多种硫族化物材料。 在另一个实施方案中,孔区包括一种或多种硫族化物材料和一层Sb。 该器件具有最小的调理要求,快速设定速度,高复位电阻和低设定电阻的优点。