Method of forming a phase change material layer pattern and method of manufacturing a phase change memory device
    1.
    发明授权
    Method of forming a phase change material layer pattern and method of manufacturing a phase change memory device 有权
    形成相变材料层图案的方法和制造相变存储器件的方法

    公开(公告)号:US08865558B2

    公开(公告)日:2014-10-21

    申请号:US13543905

    申请日:2012-07-09

    IPC分类号: H01L47/00 H01L45/00

    摘要: A method of forming a phase change material layer pattern includes forming a phase change material layer partially filling an opening through an insulating interlayer. A plasma treatment process is performed on the phase change material layer to remove an oxide layer on a surface of the phase change material layer. A heat treatment process is performed on the phase change material layer to remove a void or a seam in the phase change material layer, sufficiently filling the opening.

    摘要翻译: 形成相变材料层图案的方法包括:通过绝缘中间层形成部分填充开口的相变材料层。 在相变材料层上进行等离子体处理工艺以去除相变材料层的表面上的氧化物层。 在相变材料层上进行热处理工艺以去除相变材料层中的空隙或接缝,充分填充开口。

    Method of forming resistance variable memory device
    3.
    发明授权
    Method of forming resistance variable memory device 有权
    形成电阻变量存储器件的方法

    公开(公告)号:US08580606B2

    公开(公告)日:2013-11-12

    申请号:US13241315

    申请日:2011-09-23

    IPC分类号: H01L21/06

    摘要: A method of forming a resistance variable memory device, the method including forming a diode on a semiconductor substrate; forming a lower electrode on the diode; forming a first insulating film on the lower electrode, the first insulating film having an opening; forming a resistance variable film filling the opening such that the resistance variable film includes an amorphous region adjacent to a sidewall of the opening and a crystalline region adjacent to the lower electrode; and forming an upper electrode on the resistance variable film.

    摘要翻译: 一种形成电阻可变存储器件的方法,所述方法包括在半导体衬底上形成二极管; 在二极管上形成下电极; 在所述下电极上形成第一绝缘膜,所述第一绝缘膜具有开口; 形成填充所述开口的电阻变化膜,使得所述电阻变化膜包括与所述开口的侧壁相邻的非晶区域和与所述下部电极相邻的结晶区域; 并在电阻变化膜上形成上电极。

    MULTI-LAYER PHASE-CHANGEABLE MEMORY DEVICES
    8.
    发明申请
    MULTI-LAYER PHASE-CHANGEABLE MEMORY DEVICES 有权
    多层相变存储器件

    公开(公告)号:US20100019216A1

    公开(公告)日:2010-01-28

    申请号:US12568402

    申请日:2009-09-28

    IPC分类号: H01L47/00

    摘要: A phase-changeable memory device includes a phase-changeable material pattern and first and second electrodes electrically connected to the phase-changeable material pattern. The first and second electrodes are configured to provide an electrical signal to the phase-changeable material pattern. The phase-changeable material pattern includes a first phase-changeable material layer and a second phase-changeable material layer. The first and second phase-changeable material patterns have different chemical, physical, and/or electrical characteristics. For example, the second phase-changeable material layer may have a greater resistivity than the first phase-changeable material layer. For instance, the first phase-changeable material layer may include nitrogen at a first concentration, and the second phase-changeable material layer may include nitrogen at a second concentration that is greater than the first concentration. Related devices and fabrication methods are also discussed.

    摘要翻译: 可变相存储器件包括相变材料图案,以及电连接到相变材料图案的第一和第二电极。 第一和第二电极被配置为向相变材料图案提供电信号。 相变材料图案包括第一相变材料层和第二相变材料层。 第一和第二可相变材料图案具有不同的化学,物理和/或电特性。 例如,第二相变材料层可以具有比第一相变材料层更大的电阻率。 例如,第一相变材料层可以包括第一浓度的氮,第二相变材料层可以包括大于第一浓度的第二浓度的氮。 还讨论了相关设备和制造方法。

    Phase Change Memory Cell Employing a GeBiTe Layer as a Phase Change Material Layer, Phase Change Memory Device Including the Same, Electronic System Including the Same and Method of Fabricating the Same
    9.
    发明申请
    Phase Change Memory Cell Employing a GeBiTe Layer as a Phase Change Material Layer, Phase Change Memory Device Including the Same, Electronic System Including the Same and Method of Fabricating the Same 有权
    使用GeBiTe层作为相变材料层的相变存储单元,包括其的相变存储器件,包括其的电子系统及其制造方法

    公开(公告)号:US20070267721A1

    公开(公告)日:2007-11-22

    申请号:US11747395

    申请日:2007-05-11

    IPC分类号: H01L31/117 H01L29/12

    摘要: A phase change memory cell includes an interlayer insulating layer formed on a semiconductor substrate, and a first electrode and a second electrode disposed in the interlayer insulating layer. A phase change material layer is disposed between the first and second electrodes. The phase change material layer may be an undoped GeBiTe layer, a doped GeBiTe layer containing an impurity or a doped GeTe layer containing an impurity. The undoped GeBiTe layer has a composition ratio within a range surrounded by four points (A1(Ge21.43, Bi16.67, Te61.9), A2(Ge44.51, Bi0.35, Te55.14), A3(Ge59.33, Bi0.5, Te40.17) and A4(Ge38.71, Bi16.13, Te45.16)) represented by coordinates on a triangular composition diagram having vertices of germanium (Ge), bismuth (Bi) and tellurium (Te). The doped GeBiTe layer contains an impurity and has a composition ratio within a range surrounded by four points (D1(Ge10, Bi20, Te70), D2(Ge30, Bi0, Te70), D3(Ge70, Bi0, Te30) and D4(Ge50, Bi20, Te30)) represented by coordinates on the triangular composition diagram.

    摘要翻译: 相变存储单元包括形成在半导体衬底上的层间绝缘层和设置在层间绝缘层中的第一电极和第二电极。 相变材料层设置在第一和第二电极之间。 相变材料层可以是未掺杂的GeBiTe层,包含杂质的掺杂GeBiTe层或含有杂质的掺杂GeTe层。 未掺杂的GeBiTe层的组成比在四个点(A 1(Ge 21.43,Bi 16.67,Te 61.9), A 2(Ge 44.51,Bi 0.35,Te 55.14),A 3(Ge 59.33,Bi 40 ,Te <40.17 和A 4(Ge 38.71,Bi 16.13,Te 45.16) ))由具有锗(Ge),铋(Bi)和碲(Te)的顶点的三角形组成图上的坐标表示。 掺杂的GeBiTe层含有杂质,其组成比在四个点(D 1(Ge 10 O 12,Bi 20 O,Te 70) (3),D 2(Ge 30 30,Bi 0,Te 70),D 3(Ge 70) ,Bi 2 O 3,Te 30 N)和D 4(Ge 50,Bi 20,Te 30 ))由三角形组成图上的坐标表示。