FLAT LOWER BOTTOM ELECTRODE FOR PHASE CHANGE MEMORY CELL
    51.
    发明申请
    FLAT LOWER BOTTOM ELECTRODE FOR PHASE CHANGE MEMORY CELL 失效
    平底下电极用于相变记忆体

    公开(公告)号:US20120280197A1

    公开(公告)日:2012-11-08

    申请号:US13550091

    申请日:2012-07-16

    IPC分类号: H01L45/00

    摘要: A phase change memory cell having a flat lower bottom electrode and a method for fabricating the same. The method includes forming a dielectric layer over a substrate including an array of conductive contacts, patterning, a via having a low aspect ratio such that a depth of the via is less than a width thereof, to a contact surface of the substrate corresponding to each of the array of conductive contacts to be connected to access circuitry, etching the dielectric layer and depositing electrode material over the etched dielectric layer and within each via, and planarizing the electrode material to form a plurality of lower bottom electrodes on each of the conductive contacts.

    摘要翻译: 一种具有平底下电极的相变存储单元及其制造方法。 该方法包括在包括导电触点阵列的基板上形成电介质层,图案化,具有低纵横比以使得通孔的深度小于其宽度的通孔到对应于每个的基板的接触表面 导电触头的阵列阵列连接到存取电路,蚀刻电介质层并在蚀刻后的介电层上和每个通孔内沉积电极材料,并平面化电极材料,以在每个导电触头上形成多个下部底部电极 。

    UNIFORM CRITICAL DIMENSION SIZE PORE FOR PCRAM APPLICATION
    52.
    发明申请
    UNIFORM CRITICAL DIMENSION SIZE PORE FOR PCRAM APPLICATION 审中-公开
    用于PCRAM应用的均匀尺寸尺寸孔

    公开(公告)号:US20080164453A1

    公开(公告)日:2008-07-10

    申请号:US11620671

    申请日:2007-01-07

    IPC分类号: H01L47/00 H01L21/28

    摘要: A memory cell and a method of making the same, that includes insulating material deposited on a substrate, a bottom electrode formed within the insulating material, a plurality of insulating layers deposited above the bottom electrode and at least one of which acts as an intermediate insulating layer. A via is defined in the insulating layers above the intermediate insulating layer. A channel is created for etch with a sacrificial spacer. A pore is defined in the intermediate insulating layer. All insulating layers above the intermediate insulating layer are removed, and the entirety of the remaining pore is filled with phase change material. An upper electrode is formed above the phase change material.

    摘要翻译: 存储单元及其制造方法,其包括沉积在基板上的绝缘材料,形成在绝缘材料内的底部电极,沉积在底部电极上方的多个绝缘层,并且其中至少一个用作中间绝缘层 层。 在中间绝缘层上方的绝缘层中限定通孔。 创建一个通道用于用牺牲隔离物进行蚀刻。 在中间绝缘层中限定孔。 除去中间绝缘层之上的所有绝缘层,并且剩余的孔的整个填充有相变材料。 在相变材料上形成上电极。

    Thermally confined electrode for programmable resistance memory
    53.
    发明授权
    Thermally confined electrode for programmable resistance memory 有权
    用于可编程电阻存储器的热电极

    公开(公告)号:US08987700B2

    公开(公告)日:2015-03-24

    申请号:US13310583

    申请日:2011-12-02

    IPC分类号: H01L47/00 H01L45/00 H01L27/24

    摘要: A memory device includes a plurality of side-wall electrodes formed on a first side-wall of a trench within an insulating layer over a first plurality of contacts in an array of contacts in a substrate. The plurality of side-wall electrodes contact respective top surfaces of the first plurality of contacts. The side-wall electrodes respectively comprise a layer of tantalum nitride, having a composition TaxNy, where y is greater than x, and a layer of electrode material having a lower electrical resistivity and a lower thermal resistivity than the layer of tantalum nitride. Top surfaces of the plurality of side-wall electrodes contact memory material. A second plurality of side-wall electrodes may be formed on a second side-wall of the trench over a second plurality of contacts in the array of contacts.

    摘要翻译: 存储器件包括多个侧壁电极,形成在绝缘层中的沟槽的第一侧壁上,在衬底中的触点阵列中的第一多个触点上。 多个侧壁电极接触第一多个触点的相应顶表面。 侧壁电极分别包括氮化钽层,其具有组成为TaxNy,其中y大于x,并且电极材料层具有比氮化钽层更低的电阻率和更低的热阻率。 多个侧壁电极的顶表面接触记忆材料。 第二多个侧壁电极可以形成在沟槽阵列中的第二多个触点上的沟槽的第二侧壁上。

    Integrated circuit 3D memory array and manufacturing method
    54.
    发明授权
    Integrated circuit 3D memory array and manufacturing method 有权
    集成电路3D存储阵列及制造方法

    公开(公告)号:US08829646B2

    公开(公告)日:2014-09-09

    申请号:US12430290

    申请日:2009-04-27

    摘要: A 3D memory device is based on an array of electrode pillars and a plurality of electrode planes that intersect the electrode pillars at interface regions that include memory elements that comprise a programmable element and a rectifier. The electrode pillars can be selected using two-dimensional decoding, and the plurality of electrode planes can be selected using decoding on a third dimension.

    摘要翻译: 3D存储器件基于电极柱阵列和在包括可编程元件和整流器的存储器元件的界面区域处与电极柱相交的多个电极平面。 可以使用二维解码来选择电极柱,并且可以使用第三维度上的解码来选择多个电极平面。

    Phase change memory cell having vertical channel access transistor
    55.
    发明授权
    Phase change memory cell having vertical channel access transistor 有权
    具有垂直沟道存取晶体管的相变存储单元

    公开(公告)号:US08313979B2

    公开(公告)日:2012-11-20

    申请号:US13110197

    申请日:2011-05-18

    IPC分类号: H01L21/00

    摘要: A device includes a substrate having a first region and a second region. The first region comprises a first field effect transistor having a horizontal channel region within the substrate, a gate overlying the horizontal channel region, and a first dielectric covering the gate of the first field effect transistor. The second region of the substrate includes a second field effect transistor comprising a first terminal extending through the first dielectric to contact the substrate, a second terminal overlying the first terminal and having a top surface, and a vertical channel region separating the first and second terminals. The second field effect transistor also includes a gate on the first dielectric and adjacent the vertical channel region, the gate having a top surface that is co-planar with the top surface of the second terminal.

    摘要翻译: 一种器件包括具有第一区域和第二区域的衬底。 第一区域包括在衬底内具有水平沟道区的第一场效应晶体管,覆盖在水平沟道区上的栅极和覆盖第一场效应晶体管的栅极的第一电介质。 衬底的第二区域包括第二场效应晶体管,其包括延伸穿过第一电介质以接触衬底的第一端子,覆盖第一端子并具有顶表面的第二端子和分离第一和第二端子的垂直沟道区域 。 第二场效应晶体管还包括在第一电介质上并且与垂直沟道区相邻的栅极,栅极具有与第二端子的顶表面共面的顶表面。

    4F2 self align side wall active phase change memory
    56.
    发明授权
    4F2 self align side wall active phase change memory 有权
    4F2自对准侧壁有源相变存储器

    公开(公告)号:US08237148B2

    公开(公告)日:2012-08-07

    申请号:US12792604

    申请日:2010-06-02

    申请人: Hsiang-Lan Lung

    发明人: Hsiang-Lan Lung

    IPC分类号: H01L47/00

    摘要: Arrays of memory cells are described along with devices thereof and method for manufacturing. Memory cells described herein include self-aligned side wall memory members comprising an active programmable resistive material. In preferred embodiments the area of the memory cell is 4F2, F being the feature size for a lithographic process used to manufacture the memory cell, and more preferably F being equal to a minimum feature size. Arrays of memory cells described herein include memory cells arranged in a cross point array, the array having a plurality of word lines and source lines arranged in parallel in a first direction and having a plurality of bit lines arranged in parallel in a second direction perpendicular to the first direction.

    摘要翻译: 描述存储器单元的阵列及其装置及其制造方法。 本文所述的存储单元包括自对准侧壁存储器构件,其包括有源可编程电阻材料。 在优选实施例中,存储单元的面积为4F2,F为用于制造存储单元的光刻工艺的特征尺寸,更优选地,F等于最小特征尺寸。 本文描述的存储器单元的阵列包括布置在交叉点阵列中的存储单元,该阵列具有多个字线和源极线,其沿第一方向平行布置,并且具有沿与第一方向垂直的第二方向平行布置的多个位线 第一个方向。

    Phase change memory cell array with self-converged bottom electrode and method for manufacturing
    57.
    发明授权
    Phase change memory cell array with self-converged bottom electrode and method for manufacturing 有权
    具有自会聚底电极的相变存储单元阵列及其制造方法

    公开(公告)号:US08178386B2

    公开(公告)日:2012-05-15

    申请号:US11855983

    申请日:2007-09-14

    IPC分类号: H01L21/06

    摘要: An array of phase change memory cells is manufactured by forming a separation layer over an array of contacts, forming a patterning layer on the separation layer and forming an array of mask openings in the patterning layer using lithographic process. Etch masks are formed within the mask openings by a process that compensates for variation in the size of the mask openings that result from the lithographic process. The etch masks are used to etch through the separation layer to define an array of electrode openings exposing the underlying contacts. Electrode material is deposited within the electrode openings; and memory elements are formed over the bottom electrodes. Finally, bit lines are formed over the memory elements to complete the memory cells. In the resulting memory array, the critical dimension of the top surface of bottom electrode varies less than the width of the memory elements in the mask openings.

    摘要翻译: 通过在触点阵列上形成分离层,在分离层上形成图形层并使用光刻工艺在图案形成层中形成掩模开口阵列来制造相变存储器单元的阵列。 通过补偿由平版印刷工艺产生的掩模开口的尺寸变化的过程,在掩模开口内形成蚀刻掩模。 蚀刻掩模用于蚀刻通过分离层以限定暴露下面的触点的电极开口的阵列。 电极材料沉积在电极开口内; 并且存储元件形成在底部电极上。 最后,在存储器元件上形成位线以完成存储器单元。 在所得到的存储器阵列中,底部电极的顶表面的临界尺寸小于掩模开口中存储元件的宽度。

    Phase change memory cell in via array with self-aligned, self-converged bottom electrode and method for manufacturing
    59.
    发明授权
    Phase change memory cell in via array with self-aligned, self-converged bottom electrode and method for manufacturing 有权
    具有自对准,自会聚底电极的通孔阵列中的相变存储单元及其制造方法

    公开(公告)号:US08143612B2

    公开(公告)日:2012-03-27

    申请号:US12621000

    申请日:2009-11-18

    IPC分类号: H01L29/06

    摘要: An array of “mushroom” style phase change memory cells is manufactured by forming a separation layer over an array of contacts, forming an isolation layer on the separation layer and forming an array of memory element openings in the isolation layer using a lithographic process. Etch masks are formed within the memory element openings by a process that compensates for variation in the size of the memory element openings that results from the lithographic process. The etch masks are used to etch through the separation layer to define an array of electrode openings. Electrode material is deposited within the electrode openings; and memory elements are formed within the memory element openings. The memory elements and bottom electrodes are self-aligned.

    摘要翻译: 通过在触点阵列上形成分离层,在分离层上形成隔离层并使用光刻工艺在隔离层中形成阵列的存储元件开口来制造“蘑菇”型相变存储器单元的阵列。 通过补偿由光刻工艺产生的存储元件开口的尺寸变化的过程,在存储元件开口内形成蚀刻掩模。 蚀刻掩模用于蚀刻穿过分离层以限定电极开口的阵列。 电极材料沉积在电极开口内; 并且存储元件形成在存储元件开口内。 存储元件和底部电极是自对准的。