Resistance variable element and resistance variable memory device
    1.
    发明授权
    Resistance variable element and resistance variable memory device 有权
    电阻可变元件和电阻变量存储器件

    公开(公告)号:US08394669B2

    公开(公告)日:2013-03-12

    申请号:US13128575

    申请日:2010-07-12

    IPC分类号: H01L21/02 H01L45/00

    摘要: A resistance variable element (100) used in a through-hole cross-point structure memory device, according to the present invention, and a resistance variable memory device including the resistance variable element, includes a substrate (7) and an interlayer insulating layer (3) formed on the substrate, and have a configuration in which a through-hole (4) is formed to penetrate the interlayer insulating layer, a first resistance variable layer (2) comprising transition metal oxide is formed outside the through-hole, a second resistance variable layer (5) comprising transition metal oxide is formed inside the through-hole, the first resistance variable layer is different in resistivity from the second resistance variable layer, and the first resistance variable layer and the second resistance variable layer are in contact with each other only in an opening (20) of the through-hole which is closer to the substrate.

    摘要翻译: 在根据本发明的通孔交叉点结构存储装置中使用的电阻可变元件(100)和包括电阻可变元件的电阻变化存储装置包括基板(7)和层间绝缘层( 3),并且具有形成贯通层间绝缘层的通孔(4)的构造,在通孔的外侧形成有包含过渡金属氧化物的第一电阻变化层(2), 在通孔内形成有包含过渡金属氧化物的第二电阻变化层(5),第一电阻变化层的电阻率与第二电阻变化层不同,第一电阻变化层和第二电阻变化层接触 彼此仅在更靠近基板的通孔的开口(20)中。

    RESISTANCE VARIABLE ELEMENT AND RESISTANCE VARIABLE MEMORY DEVICE
    2.
    发明申请
    RESISTANCE VARIABLE ELEMENT AND RESISTANCE VARIABLE MEMORY DEVICE 有权
    电阻可变元件和电阻可变存储器件

    公开(公告)号:US20110220862A1

    公开(公告)日:2011-09-15

    申请号:US13128575

    申请日:2010-07-12

    IPC分类号: H01L45/00 H01L21/02

    摘要: A resistance variable element (100) used in a through-hole cross-point structure memory device, according to the present invention, and a resistance variable memory device including the resistance variable element, includes a substrate (7) and an interlayer insulating layer (3) formed on the substrate, and have a configuration in which a through-hole (4) is formed to penetrate the interlayer insulating layer, a first resistance variable layer (2) comprising transition metal oxide is formed outside the through-hole, a second resistance variable layer (5) comprising transition metal oxide is formed inside the through-hole, the first resistance variable layer is different in resistivity from the second resistance variable layer, and the first resistance variable layer and the second resistance variable layer are in contact with each other only in an opening (20) of the through-hole which is closer to the substrate.

    摘要翻译: 在根据本发明的通孔交叉点结构存储装置中使用的电阻可变元件(100)和包括电阻可变元件的电阻变化存储装置包括基板(7)和层间绝缘层( 3),并且具有形成贯通层间绝缘层的通孔(4)的构造,在通孔的外侧形成有包含过渡金属氧化物的第一电阻变化层(2), 在通孔内形成有包含过渡金属氧化物的第二电阻变化层(5),第一电阻变化层的电阻率与第二电阻变化层不同,第一电阻变化层和第二电阻变化层接触 彼此仅在更靠近基板的通孔的开口(20)中。

    NONVOLATILE SEMICONDUCTOR MEMORY DEVICE AND MANUFACTURING METHOD THEREOF
    3.
    发明申请
    NONVOLATILE SEMICONDUCTOR MEMORY DEVICE AND MANUFACTURING METHOD THEREOF 有权
    非易失性半导体存储器件及其制造方法

    公开(公告)号:US20110114912A1

    公开(公告)日:2011-05-19

    申请号:US12867437

    申请日:2009-02-09

    IPC分类号: H01L45/00 H01L21/02

    摘要: A nonvolatile semiconductor memory device (100) comprises a substrate (102) provided with a transistor (101); a first interlayer insulating layer (103) formed over the substrate to cover the transistor; a first contact plug (104) formed in the first interlayer insulating layer and electrically connected to either of a drain electrode (101a) or a source electrode (101b) of the transistor, and a second contact plug (105) formed in the first interlayer insulating layer and electrically connected to the other of the drain electrode or the source electrode of the transistor; a resistance variable layer (106) formed to cover a portion of the first contact plug; a first wire (107) formed on the resistance variable layer; and a second wire (108) formed to cover a portion of the second contact plug; an end surface of the resistance variable layer being coplanar with an end surface of the first wire.

    摘要翻译: 非易失性半导体存储器件(100)包括设置有晶体管(101)的衬底(102); 形成在所述衬底上以覆盖所述晶体管的第一层间绝缘层(103) 形成在所述第一层间绝缘层中并电连接到所述晶体管的漏电极(101a)或源电极(101b)中的任一个的第一接触插塞(104)和形成在所述第一中间层 绝缘层并与晶体管的漏电极或源电极中的另一个电连接; 形成为覆盖所述第一接触插塞的一部分的电阻变化层(106) 形成在电阻变化层上的第一线(107) 以及形成为覆盖所述第二接触插塞的一部分的第二线(108) 所述电阻变化层的端面与所述第一线的端面共面。

    MEMORY ELEMENT AND MEMORY APPARATUS
    4.
    发明申请
    MEMORY ELEMENT AND MEMORY APPARATUS 审中-公开
    记忆元素和记忆装置

    公开(公告)号:US20100061142A1

    公开(公告)日:2010-03-11

    申请号:US12532552

    申请日:2007-11-30

    IPC分类号: G11C11/00

    摘要: Memory elements (3) arranged in matrix in a memory apparatus (21), each includes a resistance variable element (1) which changes an electrical resistance value in response to an applied electrical pulse having a positive polarity or a negative polarity and maintains the changed electrical resistance value, and a current suppressing element (2) for suppressing a current flowing when the electrical pulse is applied to the resistance variable element. The current suppressing element includes a first electrode, a second electrode, and a current suppressing layer provided between the first electrode and the second electrode, and the current suppressing layer comprises SiNx (x: positive actual number).

    摘要翻译: 在存储装置(21)中排列成矩阵的存储元件(3),每个包括电阻变化元件(1),其响应于所施加的具有正极性或负极性的电脉冲改变电阻值,并保持改变 电阻值和电流抑制元件(2),用于抑制当电脉冲施加到电阻可变元件时流动的电流。 电流抑制元件包括第一电极,第二电极和设置在第一电极和第二电极之间的电流抑制层,并且电流抑制层包括SiNx(x:正实数)。

    Nonvolatile semiconductor memory device having coplanar surfaces at resistance variable layer and wiring layer and manufacturing method thereof
    5.
    发明授权
    Nonvolatile semiconductor memory device having coplanar surfaces at resistance variable layer and wiring layer and manufacturing method thereof 有权
    在电阻变化层和布线层具有共面的非易失性半导体存储器件及其制造方法

    公开(公告)号:US08537605B2

    公开(公告)日:2013-09-17

    申请号:US12867437

    申请日:2009-02-09

    IPC分类号: G11C11/14

    摘要: A nonvolatile semiconductor memory device (100) comprises a substrate (102) provided with a transistor (101); a first interlayer insulating layer (103) formed over the substrate to cover the transistor; a first contact plug (104) formed in the first interlayer insulating layer and electrically connected to either of a drain electrode (101a) or a source electrode (101b) of the transistor, and a second contact plug (105) formed in the first interlayer insulating layer and electrically connected to the other of the drain electrode or the source electrode of the transistor; a resistance variable layer (106) formed to cover a portion of the first contact plug; a first wire (107) formed on the resistance variable layer; and a second wire (108) formed to cover a portion of the second contact plug; an end surface of the resistance variable layer being coplanar with an end surface of the first wire.

    摘要翻译: 非易失性半导体存储器件(100)包括设置有晶体管(101)的衬底(102); 形成在所述衬底上以覆盖所述晶体管的第一层间绝缘层(103) 形成在所述第一层间绝缘层中并电连接到所述晶体管的漏电极(101a)或源电极(101b)中的任一个的第一接触插塞(104)和形成在所述第一中间层 绝缘层并与晶体管的漏电极或源电极中的另一个电连接; 形成为覆盖所述第一接触插塞的一部分的电阻变化层(106) 形成在电阻变化层上的第一线(107) 以及形成为覆盖所述第二接触插塞的一部分的第二线(108) 所述电阻变化层的端面与所述第一线的端面共面。

    CURRENT STEERING ELEMENT, STORAGE ELEMENT, STORAGE DEVICE, AND METHOD FOR MANUFACTURING CURRENT STEERING ELEMENT
    6.
    发明申请
    CURRENT STEERING ELEMENT, STORAGE ELEMENT, STORAGE DEVICE, AND METHOD FOR MANUFACTURING CURRENT STEERING ELEMENT 有权
    电流转向元件,存储元件,存储器件和制造电流转向元件的方法

    公开(公告)号:US20110164447A1

    公开(公告)日:2011-07-07

    申请号:US13061312

    申请日:2009-09-17

    IPC分类号: G11C11/00 H01L45/00

    摘要: A current steering element which can prevent occurrence of write disturb even when electric pulses having different polarities are applied and can cause large current to flow through a variable resistance element, and with which data can be written without problem. In a storage element (3) including: a variable resistance element (1) whose electric resistance value changes in response to application of electric pulses having a positive polarity and a negative polarity and which maintains the changed electric resistance value; and the current steering element (2) that steers current flowing through the variable resistance element (1) when the electric pulses are applied, the current steering element (2) includes: a first electrode (32); a second electrode (31); and a current steering layer (33) interposed between the first electrode (32) and the second electrode (31). When the current steering layer (33) includes SiNx (0

    摘要翻译: 即使施加具有不同极性的电脉冲也能够防止写入干扰的发生,并且可能导致大的电流流过可变电阻元件并且可以无限制地写入数据的电流导向元件。 在一种存储元件(3)中,包括:可变电阻元件(1),其电阻值响应于具有正极性和负极性的电脉冲的应用而改变并且保持改变的电阻值; 以及当施加电脉冲时转向流过可变电阻元件(1)的电流的当前操舵元件(2),所述电流操舵元件(2)包括:第一电极(32); 第二电极(31); 和介于所述第一电极(32)和所述第二电极(31)之间的电流转向层(33)。 当电流导向层(33)包括SiNx(0

    NONVOLATILE MEMORY ELEMENT ARRAY AND MANUFACTURING METHOD THEREOF
    7.
    发明申请
    NONVOLATILE MEMORY ELEMENT ARRAY AND MANUFACTURING METHOD THEREOF 有权
    非易失性存储元件阵列及其制造方法

    公开(公告)号:US20100090193A1

    公开(公告)日:2010-04-15

    申请号:US12445380

    申请日:2007-10-12

    IPC分类号: H01L47/00

    摘要: A lower electrode (22) is provided on a semiconductor chip substrate (26). A lower electrode (22) is covered with a first interlayer insulating layer (27) from above. A first contact hole (28) is provided on the lower electrode (22) to penetrate through the first interlayer insulating layer (27). A low-resistance layer (29) forming the resistance variable layer (24) is embedded to fill the first contact hole (28). A high-resistance layer (30) is provided on the first interlayer insulating layer (27) and the low-resistance layer (29). The resistance variable layer (24) is formed by a multi-layer resistance layer including a single layer of the high-resistance layer (30) and a single layer of the low-resistance layer (29). The low-resistance layer (29) forming the memory portion (25) is isolated from at least its adjacent memory portion (25).

    摘要翻译: 下电极(22)设置在半导体芯片基板(26)上。 下部电极(22)从上方被第一层间绝缘层(27)覆盖。 第一接触孔(28)设置在下电极(22)上以穿透第一层间绝缘层(27)。 嵌入形成电阻变化层(24)的低电阻层(29)以填充第一接触孔(28)。 在第一层间绝缘层(27)和低电阻层(29)上设置有高电阻层(30)。 电阻变化层(24)由包含单层高电阻层(30)和单层低电阻层(29)的多层电阻层形成。 形成存储器部分(25)的低电阻层(29)至少与其相邻的存储器部分(25)隔离。

    Method for manufacturing nonvolatile storage element and method for manufacturing nonvolatile storage device
    8.
    发明授权
    Method for manufacturing nonvolatile storage element and method for manufacturing nonvolatile storage device 有权
    非易失性存储元件的制造方法及其制造方法

    公开(公告)号:US07981760B2

    公开(公告)日:2011-07-19

    申请号:US12669812

    申请日:2009-05-07

    IPC分类号: H01L21/00

    摘要: A method for manufacturing a nonvolatile storage element that minimizes shape shift between an upper electrode and a lower electrode, and which includes: depositing, in sequence, a connecting electrode layer which is conductive, a lower electrode layer and a variable resistance layer which are made of a non-noble metal nitride and are conductive, an upper electrode layer made of noble metal, and a mask layer; forming the mask layer into a predetermined shape; forming the upper electrode layer, the variable resistance layer, and the lower electrode layer into the predetermined shape by etching using the mask layer as a mask; and removing, simultaneously, the mask and a region of the connecting electrode layer that has been exposed by the etching.

    摘要翻译: 一种用于制造使上部电极和下部电极之间的形状偏移最小化的非易失性存储元件的方法,包括:依次沉积导电的连接电极层,下部电极层和可变电阻层 的非贵金属氮化物,并且是导电的,由贵金属制成的上电极层和掩模层; 将掩模层形成为预定形状; 通过使用掩模层作为掩模通过蚀刻将上电极层,可变电阻层和下电极层形成为预定形状; 并且同时去除已经通过蚀刻暴露的掩模和连接电极层的区域。

    Nonvolatile memory element array with storing layer formed by resistance variable layers
    9.
    发明授权
    Nonvolatile memory element array with storing layer formed by resistance variable layers 有权
    具有由电阻变化层形成的存储层的非易失存储元件阵列

    公开(公告)号:US07960770B2

    公开(公告)日:2011-06-14

    申请号:US12445380

    申请日:2007-10-12

    IPC分类号: H01L29/76

    摘要: A lower electrode (22) is provided on a semiconductor chip substrate (26). A lower electrode (22) is covered with a first interlayer insulating layer (27) from above. A first contact hole (28) is provided on the lower electrode (22) to penetrate through the first interlayer insulating layer (27). A low-resistance layer (29) forming the resistance variable layer (24) is embedded to fill the first contact hole (28). A high-resistance layer (30) is provided on the first interlayer insulating layer (27) and the low-resistance layer (29). The resistance variable layer (24) is formed by a multi-layer resistance layer including a single layer of the high-resistance layer (30) and a single layer of the low-resistance layer (29). The low-resistance layer (29) forming the memory portion (25) is isolated from at least its adjacent memory portion (25).

    摘要翻译: 下电极(22)设置在半导体芯片基板(26)上。 下部电极(22)从上方被第一层间绝缘层(27)覆盖。 第一接触孔(28)设置在下电极(22)上以穿透第一层间绝缘层(27)。 嵌入形成电阻变化层(24)的低电阻层(29),以填充第一接触孔(28)。 在第一层间绝缘层(27)和低电阻层(29)上设置有高电阻层(30)。 电阻变化层(24)由包含单层高电阻层(30)和单层低电阻层(29)的多层电阻层形成。 形成存储器部分(25)的低电阻层(29)至少与其相邻的存储器部分(25)隔离。

    METHOD FOR MANUFACTURING NONVOLATILE STORAGE ELEMENT AND METHOD FOR MANUFACTURING NONVOLATILE STORAGE DEVICE
    10.
    发明申请
    METHOD FOR MANUFACTURING NONVOLATILE STORAGE ELEMENT AND METHOD FOR MANUFACTURING NONVOLATILE STORAGE DEVICE 有权
    制造非易失性存储元件的方法和制造非易失存储器件的方法

    公开(公告)号:US20100190313A1

    公开(公告)日:2010-07-29

    申请号:US12669812

    申请日:2009-05-07

    IPC分类号: H01L21/8246

    摘要: A method for manufacturing a nonvolatile storage element that minimizes shape shift between an upper electrode and a lower electrode, and which includes: depositing, in sequence, a connecting electrode layer which is conductive, a lower electrode layer and a variable resistance layer which are made of a non-noble metal nitride and are conductive, an upper electrode layer made of noble metal, and a mask layer; forming the mask layer, into a predetermined shape; forming the upper electrode layer, the variable resistance layer, and the lower electrode layer into the predetermined shape by etching using the mask layer as a mask; and removing, simultaneously, the mask and a region of the connecting electrode layer that has been exposed by the etching.

    摘要翻译: 一种用于制造使上部电极和下部电极之间的形状偏移最小化的非易失性存储元件的方法,包括:依次沉积导电的连接电极层,下部电极层和可变电阻层 的非贵金属氮化物,并且是导电的,由贵金属制成的上电极层和掩模层; 形成掩模层,形成预定的形状; 通过使用掩模层作为掩模通过蚀刻将上电极层,可变电阻层和下电极层形成为预定形状; 并且同时去除已经通过蚀刻暴露的掩模和连接电极层的区域。