Methods of forming multi-level cell of semiconductor memory
    5.
    发明授权
    Methods of forming multi-level cell of semiconductor memory 有权
    形成半导体存储器多级单元的方法

    公开(公告)号:US08187918B2

    公开(公告)日:2012-05-29

    申请号:US12587772

    申请日:2009-10-13

    IPC分类号: H01L21/06

    摘要: Provided is a method of forming a semiconductor memory cell in which in order to store two bits or more data in a memory cell, three or more bottom electrode contacts (BECs) and phase-change materials (GST) have a parallel structure on a single contact plug (CP) and set resistances are changed depending on thicknesses (S), lengths (L) or resistivities (ρ) of the three or more bottom electrode contacts, so that a reset resistance and three different set resistances enable data other than in set and reset states to be stored. Also, a method of forming a memory cell in which three or more phase-change materials (GST) have a parallel structure on a single bottom electrode contact, and the phase-change materials have different set resistances depending on composition ratio or type, so that four or more different resistances can be implemented is provided.

    摘要翻译: 提供了一种形成半导体存储单元的方法,其中为了在存储单元中存储两个或更多个数据,三个或更多个底部电极触点(BEC)和相变材料(GST)在单个存储单元上具有并联结构 接触插头(CP)和设定电阻根据三个或更多个底部电极触点的厚度(S),长度(L)或电阻率(&rgr)而改变,因此复位电阻和三种不同的设定电阻使数据不能 在设置和复位状态下存储。 此外,形成其中三个或更多个相变材料(GST)在单个底部电极接触上具有平行结构的存储单元的方法,并且相变材料根据组成比或类型具有不同的设定电阻,因此 可以实现四个或更多个不同的电阻。

    Variable resistance non-volatile memory cells and methods of fabricating same
    9.
    发明授权
    Variable resistance non-volatile memory cells and methods of fabricating same 失效
    可变电阻非易失性存储单元及其制造方法

    公开(公告)号:US07803654B2

    公开(公告)日:2010-09-28

    申请号:US11862779

    申请日:2007-09-27

    IPC分类号: H01L21/00

    摘要: Methods of fabricating integrated circuit memory cells and integrated circuit memory cells are disclosed. Formation of an integrated circuit memory cell include forming a first electrode on a substrate. An insulation layer is formed on the substrate with an opening that exposes at least a portion of a first electrode. An amorphous variable resistivity material is formed on the first electrode and extends away from the first electrode along sidewalls of the opening. A crystalline variable resistivity material is formed in the opening on the amorphous variable resistivity material. A second electrode is formed on the crystalline variable resistivity material.

    摘要翻译: 公开了制造集成电路存储单元和集成电路存储单元的方法。 集成电路存储单元的形成包括在基板上形成第一电极。 在基板上形成具有露出第一电极的至少一部分的开口的绝缘层。 非晶可变电阻率材料形成在第一电极上,并沿着开口的侧壁远离第一电极延伸。 在非晶可变电阻率材料的开口中形成结晶可变电阻率材料。 在结晶可变电阻率材料上形成第二电极。

    METHODS OF FORMING CONTACT STRUCTURES AND SEMICONDUCTOR DEVICES FABRICATED USING CONTACT STRUCTURES
    10.
    发明申请
    METHODS OF FORMING CONTACT STRUCTURES AND SEMICONDUCTOR DEVICES FABRICATED USING CONTACT STRUCTURES 有权
    形成接触结构的方法和使用接触结构织造的半导体器件

    公开(公告)号:US20100144138A1

    公开(公告)日:2010-06-10

    申请号:US12627810

    申请日:2009-11-30

    IPC分类号: H01L21/768

    CPC分类号: H01L21/76816 H01L27/24

    摘要: Provided are methods of forming contact structures and semiconductor devices fabricated using the contact structures. The formation of a contact structure can include forming a first molding pattern on a substrate, forming an insulating layer to cover at least a sidewall of the first molding pattern, forming a second molding pattern to cover a sidewall of the insulating layer and spaced apart from the first molding pattern, removing a portion of the insulating layer between the first and second molding patterns to form a hole, and forming an insulating pattern between the first and second molding patterns, and forming a contact pattern in the hole.

    摘要翻译: 提供了形成使用接触结构制造的接触结构和半导体器件的方法。 接触结构的形成可以包括在基底上形成第一模制图案,形成绝缘层以覆盖至少第一模制图案的侧壁,形成第二模制图案以覆盖绝缘层的侧壁并与 第一模制图案,去除第一和第二模制图案之间的绝缘层的一部分以形成孔,并且在第一和第二模制图案之间形成绝缘图案,并在孔中形成接触图案。