Selective germanium deposition for pillar devices
    81.
    发明申请
    Selective germanium deposition for pillar devices 有权
    支柱装置的选择性锗沉积

    公开(公告)号:US20090181515A1

    公开(公告)日:2009-07-16

    申请号:US12007780

    申请日:2008-01-15

    IPC分类号: H01L21/329

    CPC分类号: H01L29/868 H01L27/1021

    摘要: A method of making a pillar device includes providing an insulating layer having an opening, and selectively depositing germanium or germanium rich silicon germanium semiconductor material into the opening to form the pillar device.

    摘要翻译: 制造柱装置的方法包括提供具有开口的绝缘层,并且将锗或富锗硅锗半导体材料选择性地沉积到开口中以形成柱装置。

    Nonvolatile memory cell comprising a reduced height vertical diode
    82.
    发明授权
    Nonvolatile memory cell comprising a reduced height vertical diode 有权
    非易失性存储单元包括减小的高度的垂直二极管

    公开(公告)号:US07560339B2

    公开(公告)日:2009-07-14

    申请号:US11866403

    申请日:2007-10-02

    IPC分类号: H01L29/80

    摘要: A nonvolatile memory cell according to the present invention comprises a bottom conductor, a semiconductor pillar, and a top conductor. The semiconductor pillar comprises a junction diode, including a bottom heavily doped region, a middle intrinsic or lightly doped region, and a top heavily doped region, wherein the conductivity types of the top and bottom heavily doped region are opposite. The junction diode is vertically oriented and is of reduced height, between about 500 angstroms and about 3500 angstroms. A monolithic three dimensional memory array of such cells can be formed comprising multiple memory levels, the levels monolithically formed above one another.

    摘要翻译: 根据本发明的非易失性存储单元包括底部导体,半导体柱和顶部导体。 半导体柱包括结二极管,其包括底部重掺杂区域,中间固有或轻掺杂区域和顶部重掺杂区域,其中顶部和底部重掺杂区域的导电类型相反。 结二极管是垂直取向的,并且具有降低的高度,在约500埃至约3500埃之间。 可以形成这样的单元的单片三维存储器阵列,其包括多个存储器级,电平彼此整体地形成。

    VERTICAL DIODE BASED MEMORY CELLS HAVING A LOWERED PROGRAMMING VOLTAGE AND METHODS OF FORMING THE SAME
    83.
    发明申请
    VERTICAL DIODE BASED MEMORY CELLS HAVING A LOWERED PROGRAMMING VOLTAGE AND METHODS OF FORMING THE SAME 有权
    具有降低的编程电压的基于垂直二极管的存储器电池及其形成方法

    公开(公告)号:US20090085154A1

    公开(公告)日:2009-04-02

    申请号:US11864848

    申请日:2007-09-28

    IPC分类号: H01L27/102 H01L21/8229

    摘要: In a first aspect, a method for forming a non-volatile memory cell is provided. The method includes (1) forming a metal-insulator-metal (MIM) antifuse stack including (a) a first metal layer; (b) a silicon dioxide, oxynitride or silicon nitride antifuse layer formed above the first metal layer; and (c) a second metal layer formed above the antifuse layer. The method also includes (2) forming a contiguous p-i-n diode above the MIM stack, the contiguous p-i-n diode comprising deposited semiconductor material; (3) forming a layer of a silicide, silicide-germanide, or germanide in contact with the deposited semiconductor material; and (4) crystallizing the deposited semiconductor material in contact with the layer of silicide, silicide-germanide, or germanide. The memory cell comprises the contiguous p-i-n diode and the MIM stack. Other aspects are provided.

    摘要翻译: 在第一方面,提供了一种用于形成非易失性存储单元的方法。 该方法包括(1)形成包括(a)第一金属层的金属 - 绝缘体 - 金属(MIM)反熔丝堆叠; (b)形成在第一金属层上方的二氧化硅,氧氮化物或氮化硅反熔层; 和(c)形成在反熔丝层之上的第二金属层。 该方法还包括(2)在MIM堆叠之上形成连续的p-i-n二极管,连续的p-i-n二极管包括沉积的半导体材料; (3)形成与沉积的半导体材料接触的硅化物层,硅化锗 - 锗化物或锗化物层; 和(4)使沉积的半导体材料与硅化物,硅化锗 - 锗化物或锗化物层接触。 存储单元包括相邻的p-i-n二极管和MIM堆叠。 提供其他方面。

    Junction Diode with Reduced Reverse Current
    84.
    发明申请
    Junction Diode with Reduced Reverse Current 有权
    具有降低反向电流的结二极管

    公开(公告)号:US20080318397A1

    公开(公告)日:2008-12-25

    申请号:US11765254

    申请日:2007-06-19

    申请人: S. Brad Herner

    发明人: S. Brad Herner

    IPC分类号: H01L21/20

    摘要: A method for annealing a diode formed of a silicon-germanium alloy that minimizes leakage current is disclosed. The method includes the steps of forming semiconductor pillars of an alloy of silicon and germanium; heating the pillars at a first temperature for at least 30 minutes, and then heating the pillars at a second temperature higher than the first temperature of the alloy for up to 120 seconds. The invention further includes a monolithic three dimensional memory array of a plurality of p-i-n diodes, the p-i-n diodes being formed of a silicon-germanium alloy that have been subjected to a two-stage heating process.

    摘要翻译: 公开了一种使由硅 - 锗合金形成的二极管退火的方法,其使泄漏电流最小化。 该方法包括形成硅和锗的合金的半导体柱的步骤; 在第一温度下加热柱子至少30分钟,然后在高于合金的第一温度的第二温度下加热柱子长达120秒。 本发明还包括多个p-i-n二极管的单片三维存储器阵列,p-i-n二极管由已进行两级加热处理的硅 - 锗合金形成。

    High forward current diodes for reverse write 3D cell
    85.
    发明申请
    High forward current diodes for reverse write 3D cell 有权
    用于反向写入3D电池的高正向电流二极管

    公开(公告)号:US20080316809A1

    公开(公告)日:2008-12-25

    申请号:US11819078

    申请日:2007-06-25

    申请人: S. Brad Herner

    发明人: S. Brad Herner

    IPC分类号: G11C11/36

    摘要: A nonvolatile memory device includes at least one memory cell which comprises a diode and a metal oxide antifuse dielectric layer, and a first electrode and a second electrode electrically contacting the at least one memory cell. In use, the diode acts as a read/write element of the memory cell by switching from a first resistivity state to a second resistivity state different from the first resistivity state in response to an applied bias.

    摘要翻译: 非易失性存储器件包括至少一个存储单元,其包括二极管和金属氧化物反熔丝电介质层,以及第一电极和与该至少一个存储单元电接触的第二电极。 在使用中,响应于施加的偏压,二极管通过从第一电阻率状态切换到不同于第一电阻率状态的第二电阻率状态来充当存储单元的读/写元件。

    Method of making high forward current diodes for reverse write 3D cell
    86.
    发明申请
    Method of making high forward current diodes for reverse write 3D cell 有权
    制造反向写入3D电池的高正向电流二极管的方法

    公开(公告)号:US20080316796A1

    公开(公告)日:2008-12-25

    申请号:US11819079

    申请日:2007-06-25

    申请人: S. Brad Herner

    发明人: S. Brad Herner

    IPC分类号: G11C11/00 G11C11/36 H01L21/82

    CPC分类号: G11C11/36 H01L27/1021

    摘要: A method of making a nonvolatile memory device includes forming a first electrode, forming at least one nonvolatile memory cell including a diode and a metal oxide antifuse dielectric layer over the first electrode, and forming a second electrode over the at least one nonvolatile memory cell. In use, the diode acts as a read/write element of the nonvolatile memory cell by switching from a first resistivity state to a second resistivity state different from the first resistivity state in response to an applied bias.

    摘要翻译: 一种制造非易失性存储器件的方法包括:形成第一电极,在所述第一电极上形成至少一个包括二极管和金属氧化物反熔丝电介质层的非易失性存储单元,以及在所述至少一个非易失性存储单元上形成第二电极。 在使用中,响应于施加的偏压,二极管通过从第一电阻率状态切换到不同于第一电阻率状态的第二电阻率状态来充当非易失性存储单元的读/写元件。

    METHOD TO FORM LOW-DEFECT POLYCRYSTALLINE SEMICONDUCTOR MATERIAL FOR USE IN A TRANSISTOR
    87.
    发明申请
    METHOD TO FORM LOW-DEFECT POLYCRYSTALLINE SEMICONDUCTOR MATERIAL FOR USE IN A TRANSISTOR 有权
    形成用于晶体管的低缺陷多晶半导体材料的方法

    公开(公告)号:US20080311710A1

    公开(公告)日:2008-12-18

    申请号:US11763671

    申请日:2007-06-15

    IPC分类号: H01L21/336 H01L21/331

    摘要: A method is described for forming a thin film transistor having its current-switching region in polycrystalline semiconductor material which has been crystallized in contact with titanium silicide, titanium silicide-germanide, or titanium germanide. The titanium silicide, titanium silicide-germanide, or titanium germanide is formed having feature size no more than 0.25 micron in the smallest dimension. The small feature size tends to inhibit the phase transformation from C49 to C54 phase titanium silicide. The C49 phase of titanium silicide has a very close lattice match to silicon, and thus provides a crystallization template for the silicon as it forms, allowing formation of large-grain, low-defect silicon. Titanium does not tend to migrate through the silicon during crystallization, limiting the danger of metal contamination. In preferred embodiments, the transistors thus formed may be, for example, field-effect transistors or bipolar junction transistors.

    摘要翻译: 描述了一种用于形成其多晶半导体材料中具有电流切换区域的薄膜晶体管的方法,其已经与硅化钛,硅化钛 - 锗化锗或锗化锗接触而结晶化。 在最小尺寸上形成特征尺寸不超过0.25微米的硅化钛,硅化钛 - 锗化锗或锗锗。 小特征尺寸倾向于抑制从C49到C54相钛硅化物的相变。 硅化钛的C49相具有与硅非常接近的晶格匹配,因此在形成硅时提供了硅的结晶模板,从而形成大晶粒,低缺陷硅。 在结晶过程中,钛不会通过硅迁移,限制了金属污染的危险。 在优选实施例中,如此形成的晶体管可以是例如场效应晶体管或双极结型晶体管。

    MEMORY CELL COMPRISING A CARBON NANOTUBE FABRIC ELEMENT AND A STEERING ELEMENT
    88.
    发明申请
    MEMORY CELL COMPRISING A CARBON NANOTUBE FABRIC ELEMENT AND A STEERING ELEMENT 有权
    包含碳纳米管织物元件和转向元件的存储单元

    公开(公告)号:US20080237599A1

    公开(公告)日:2008-10-02

    申请号:US11692148

    申请日:2007-03-27

    IPC分类号: H01L27/10 H01L29/04

    摘要: A rewritable nonvolatile memory cell is disclosed comprising a steering element in series with a carbon nanotube fabric. The steering element is preferably a diode, but may also be a transistor. The carbon nanotube fabric reversibly changes resistivity when subjected to an appropriate electrical pulse. The different resistivity states of the carbon nanotube fabric can be sensed, and can correspond to distinct data states of the memory cell. A first memory level of such memory cells can be monolithically formed above a substrate, a second memory level monolithically formed above the first, and so on, forming a highly dense monolithic three dimensional memory array of stacked memory levels.

    摘要翻译: 公开了一种可重写的非易失性存储单元,其包括与碳纳米管织物串联的转向元件。 转向元件优选为二极管,但也可以是晶体管。 当经受适当的电脉冲时,碳纳米管织物可逆地改变电阻率。 可以感测碳纳米管织物的不同电阻率状态,并且可以对应于存储器单元的不同数据状态。 这种存储器单元的第一存储器级别可以单片地形成在衬底上方,第一存储器级单元形成在第一存储器之上,等等,形成堆叠存储器级别的高密度单片三维存储器阵列。

    Low-temperature, low-resistivity heavily doped p-type polysilicon deposition
    89.
    发明授权
    Low-temperature, low-resistivity heavily doped p-type polysilicon deposition 有权
    低温,低电阻率重掺杂p型多晶硅沉积

    公开(公告)号:US07419701B2

    公开(公告)日:2008-09-02

    申请号:US10769047

    申请日:2004-01-30

    IPC分类号: C23C16/08

    摘要: A method to create a low resistivity P+in-situ doped polysilicon film at low temperature from SiH4 and BCl3 with no anneal required. At conventional dopant concentrations using these source gases, as deposition temperature decreases below about 550 degrees C., deposition rate decreases and sheet resistance increases, making production of a high-quality film impossible. By flowing very high amounts of BCl3, however, such that the concentration of boron atoms in the resultant film is about 7×1020 or higher, the deposition rate and sheet resistance are improved, and a high-quality film is produced.

    摘要翻译: 在低温下从SiH 4和BCl 3 3生成低电阻P +原位掺杂多晶硅膜的方法,无需退火。 在使用这些源气体的常规掺杂剂浓度下,随着沉积温度降低到约550℃以下,沉积速率降低并且薄层电阻增加,使得生产高质量膜不可能。 然而,通过流动非常高量的BCl 3 3,使得所得膜中硼原子的浓度为约7×10 20或更高,沉积速率和薄层电阻为 改进,并且制作出高质量的胶片。

    Deposited semiconductor structure to minimize n-type dopant diffusion and method of making
    90.
    发明授权
    Deposited semiconductor structure to minimize n-type dopant diffusion and method of making 有权
    沉积半导体结构以使n型掺杂剂扩散最小化和制备方法

    公开(公告)号:US07405465B2

    公开(公告)日:2008-07-29

    申请号:US11298331

    申请日:2005-12-09

    申请人: S. Brad Herner

    发明人: S. Brad Herner

    IPC分类号: H01L31/117

    摘要: In deposited silicon, n-type dopants such as phosphorus and arsenic tend to seek the surface of the silicon, rising as the layer is deposited. When a second undoped or p-doped silicon layer is deposited on n-doped silicon with no n-type dopant provided, a first thickness of this second silicon layer nonetheless tends to include unwanted n-type dopant which has diffused up from lower levels. This surface-seeking behavior diminishes when germanium is alloyed with the silicon. In some devices, it may not be advantageous for the second layer to have significant germanium content. In the present invention, a first heavily n-doped semiconductor layer (preferably at least 10 at % germanium) is deposited, followed by a silicon-germanium capping layer with little or no n-type dopant, followed by a layer with little or no n-type dopant and less than 10 at % germanium. The germanium in the first layer and the capping layer minimizes diffusion of n-type dopant into the germanium-poor layer above.

    摘要翻译: 在沉积的硅中,诸如磷和砷的n型掺杂剂倾向于寻求硅的表面,随着层的沉积而上升。 当在没有提供n型掺杂剂的n掺杂硅上沉积第二未掺杂或p掺杂的硅层时,该第二硅层的第一厚度倾向于包括从较低水平扩散的不期望的n型掺杂剂。 当锗与硅合金化时,这种表面寻找行为减弱。 在一些设备中,对于第二层可能不是有利的具有显着的锗含量。 在本发明中,沉积第一重n掺杂的半导体层(优选至少10原子%的锗),随后是几乎没有或没有n型掺杂剂的硅 - 锗覆盖层,之后是几乎没有或没有 n型掺杂剂和少于10at%的锗。 第一层和覆盖层中的锗使n型掺杂剂的扩散最小化到上述的锗贫层中。