NONVOLATILE MEMORY DEVICE AND METHOD OF FABRICATING THE SAME
    1.
    发明申请
    NONVOLATILE MEMORY DEVICE AND METHOD OF FABRICATING THE SAME 审中-公开
    非易失性存储器件及其制造方法

    公开(公告)号:US20090096008A1

    公开(公告)日:2009-04-16

    申请号:US12249004

    申请日:2008-10-10

    IPC分类号: H01L29/788 H01L23/58

    摘要: A nonvolatile memory device having a blocking insulating layer with an excellent data retention property and a method of fabricating the same are provided. The nonvolatile memory device may include a semiconductor substrate having a channel region formed therein; and a gate stack including a tunneling insulating layer, a charge storing layer, a blocking insulating layer and a control gate electrode sequentially stacked on the channel region of the semiconductor substrate. The blocking insulating layer may comprise a lanthanum aluminum oxide having a formula of La2-xAlxOy and the composition parameter x may be 1

    摘要翻译: 提供了具有优异数据保存性能的阻挡绝缘层的非易失性存储器件及其制造方法。 非易失性存储器件可以包括其中形成有沟道区的半导体衬底; 以及栅极堆叠,其包括顺序堆叠在半导体衬底的沟道区上的隧道绝缘层,电荷存储层,阻挡绝缘层和控制栅电极。 阻挡绝缘层可以包含具有下式的La 2-x Al x O y的氧化镧铝,组成参数x可以是1

    Methods of forming metal-insulator-metal (MIM) capacitors with separate seed
    7.
    发明授权
    Methods of forming metal-insulator-metal (MIM) capacitors with separate seed 有权
    用分离的种子形成金属 - 绝缘体 - 金属(MIM)电容器的方法

    公开(公告)号:US07314806B2

    公开(公告)日:2008-01-01

    申请号:US11097404

    申请日:2005-04-01

    IPC分类号: H01L21/20

    CPC分类号: H01L21/31122

    摘要: A metal-oxy-nitride seed dielectric layer can be formed on a metal-nitride lower electrode of a metal-insulator-metal (MIM) type capacitor. The metal-oxy-nitride seed dielectric layer can act as a barrier layer to reduce a reaction with the metal-nitride lower electrode during, for example, backend processing used to form upper levels of metallization/structures in an integrated circuit including the MIM type capacitor. Nitrogen included in the metal-oxy-nitride seed dielectric layer can reduce the type of reaction, which may occur in conventional type MIM capacitors. A metal-oxide main dielectric layer can be formed on the metal-oxy-nitride seed dielectric layer and can remain separate from the metal-oxy-nitride seed dielectric layer in the MIM type capacitor. The metal-oxide main dielectric layer can be stabilized (using, for example, a thermal or plasma treatment) to remove defects (such as carbon) therefrom and to adjust the stoichiometry of the metal-oxide main dielectric layer.

    摘要翻译: 可以在金属 - 绝缘体 - 金属(MIM)型电容器的金属氮化物下电极上形成金属 - 氮化物种子电介质层。 金属 - 氮化物种子电介质层可以用作阻挡层,以在例如用于在包括MIM型的集成电路中形成上层金属化/结构的后端处理中减少与金属氮化物下电极的反应 电容器。 包含在金属 - 氮氧化物种子电介质层中的氮可以减少在常规型MIM电容器中可能发生的反应类型。 可以在金属 - 氮化物种子介电层上形成金属氧化物主介电层,并且可以与MIM型电容器中的金属 - 氮化物种子电介质层保持分离。 金属氧化物主电介质层可以被稳定(使用例如热或等离子体处理)以从其中去除缺陷(例如碳)并调整金属氧化物主介电层的化学计量。

    Methods of forming metal-insulator-metal (MIM) capacitors with separate seed and main dielectric layers and MIM capacitors so formed
    9.
    发明申请
    Methods of forming metal-insulator-metal (MIM) capacitors with separate seed and main dielectric layers and MIM capacitors so formed 有权
    形成金属 - 绝缘体 - 金属(MIM)电容器的方法,该电容器具有单独的种子和主电介质层以及如此形成的MIM电容器

    公开(公告)号:US20050227432A1

    公开(公告)日:2005-10-13

    申请号:US11097404

    申请日:2005-04-01

    CPC分类号: H01L21/31122

    摘要: A metal-oxy-nitride seed dielectric layer can be formed on a metal-nitride lower electrode of a meta-insulator-metal (MIM) type capacitor. The metal-oxy-nitride seed dielectric layer can act as a barrier layer to reduce a reaction with the metal-nitride lower electrode during, for example, backend processing used to form upper levels of metallization/structures in an integrated circuit including the MIM type capacitor. Nitrogen included in the metal-oxy-nitride seed dielectric layer can reduce the type of reaction, which may occur in conventional type MIM capacitors. A metal-oxide main dielectric layer can be formed on the metal-oxy-nitride seed dielectric layer and can remain separate from the metal-oxy-nitride seed dielectric layer in the MIM type capacitor. The metal-oxide main dielectric layer can be stabilized (using, for example, a thermal or plasma treatment) to remove defects (such as carbon) therefrom and to adjust the stoichiometry of the metal-oxide main dielectric layer.

    摘要翻译: 可以在间绝缘子金属(MIM)型电容器的金属氮化物下电极上形成金属 - 氮氧化物种子电介质层。 金属 - 氮化物种子电介质层可以用作阻挡层,以在例如用于在包括MIM型的集成电路中形成上层金属化/结构的后端处理中减少与金属氮化物下电极的反应 电容器。 包含在金属 - 氮氧化物种子电介质层中的氮可以减少在常规型MIM电容器中可能发生的反应类型。 可以在金属 - 氮化物种子介电层上形成金属氧化物主介电层,并且可以与MIM型电容器中的金属 - 氮化物种子电介质层保持分离。 金属氧化物主电介质层可以被稳定(使用例如热或等离子体处理)以从其中去除缺陷(例如碳)并调整金属氧化物主介电层的化学计量。

    Methods for manufacturing semiconductor memory devices
    10.
    发明授权
    Methods for manufacturing semiconductor memory devices 有权
    制造半导体存储器件的方法

    公开(公告)号:US06743678B2

    公开(公告)日:2004-06-01

    申请号:US10424959

    申请日:2003-04-28

    IPC分类号: H01L21336

    CPC分类号: H01L28/75 H01L28/65

    摘要: A lower electrode is formed from a first metal on a semiconductor substrate. Atoms of a second metal, that is different than the first metal, are diffused into the lower electrode. A dielectric layer is formed on the lower electrode, and an upper electrode is formed on the dielectric layer. Diffusion of second metal atoms into the lower electrode may reduce or prevent crystal grain growth and agglomeration on a surface of the lower electrode during a subsequent high temperature process.

    摘要翻译: 下电极由半导体衬底上的第一金属形成。 与第一金属不同的第二金属的原子被扩散到下电极中。 在下电极上形成介电层,在电介质层上形成上电极。 在随后的高温过程中,第二金属原子向下电极的扩散可以减少或防止下电极表面上的晶粒生长和结块。