Method of producing a conductive layer including two metal nitrides
    51.
    发明授权
    Method of producing a conductive layer including two metal nitrides 失效
    制造包含两个金属氮化物的导电层的方法

    公开(公告)号:US07531418B2

    公开(公告)日:2009-05-12

    申请号:US11296568

    申请日:2005-12-08

    IPC分类号: H01L21/20

    摘要: In a method for producing a conductive layer a substrate is provided. On the substrate, a layer includes at least two different metal nitrides. In one embodiment, on a surface of the substrate a first metal nitride layer is deposited, followed by a second metal nitride layer formed thereon. A third metal layer is then deposited on a surface of the second metal nitride layer.

    摘要翻译: 在制造导电层的方法中,提供了基板。 在衬底上,层包括至少两种不同的金属氮化物。 在一个实施例中,在衬底的表面上沉积第一金属氮化物层,随后形成第二金属氮化物层。 然后在第二金属氮化物层的表面上沉积第三金属层。

    Deposition method for transition-metal oxide based dielectric
    52.
    发明申请
    Deposition method for transition-metal oxide based dielectric 审中-公开
    基于过渡金属氧化物的电介质的沉积方法

    公开(公告)号:US20080182427A1

    公开(公告)日:2008-07-31

    申请号:US11698337

    申请日:2007-01-26

    IPC分类号: H01L29/78 H01L21/31 H01L29/92

    摘要: The present invention relates to a method for depositing a dielectric material comprising a transition metal oxide. In an initial step, a substrate is provided. In a further step, a first precursor comprising a transition metal containing compound, and a second precursor predominantly comprising at least one of water vapor, ozone, oxygen, or oxygen plasma are sequentially applied for depositing above the substrate a layer of a transition metal containing material. In another step, a third precursor comprising a dopant containing compound, and a fourth precursor predominantly comprising at least one of water vapor, ozone, oxygen, or oxygen plasma are sequentially applied for depositing above the substrate a layer of a dopant containing material. The transition metal comprises at least one of zirconium and hafnium. The dopant comprises at least one of barium, strontium, calcium, niobium, bismuth, magnesium, and cerium.

    摘要翻译: 本发明涉及沉积包含过渡金属氧化物的电介质材料的方法。 在初始步骤中,提供衬底。 在另一步骤中,依次施加包含含过渡金属的化合物的第一前体和主要包含水蒸气,臭氧,氧或氧等离子体中的至少一种的第二前体,以在基底上沉积含有过渡金属的层 材料。 在另一步骤中,顺序地施加包含掺杂剂的化合物的第三前体和主要包含水蒸汽,臭氧,氧或氧等离子体中的至少一种的第四前体,以在衬底上沉积含掺杂剂材料的层。 过渡金属包括锆和铪中的至少一种。 掺杂剂包括钡,锶,钙,铌,铋,镁和铈中的至少一种。

    Method for fabricating a capacitor
    53.
    发明授权
    Method for fabricating a capacitor 失效
    制造电容器的方法

    公开(公告)号:US07402860B2

    公开(公告)日:2008-07-22

    申请号:US11179052

    申请日:2005-07-11

    IPC分类号: H01L27/108

    CPC分类号: H01L28/40

    摘要: The present invention relates to a method of fabricating a capacitor in a semiconductor substrate. The capacitor is fabricated such that the capacitor comprises: a trench inside a substrate, the trench having a lower region and an upper region, wherein the trench's diameters in the lower region is larger than in the upper region; a first electrode; a dielectric layer on top of the first electrode; a conductive layer on top of the electric layer, the conductive layer forming a second electrode of the capacitor; and a plug forming a closed cavity inside the lower region.

    摘要翻译: 本发明涉及在半导体衬底中制造电容器的方法。 电容器被制造成使得电容器包括:衬底内的沟槽,沟槽具有下部区域和上部区域,其中下部区域中的沟槽直径大于上部区域中的沟槽直径; 第一电极; 位于所述第一电极顶部的电介质层; 在所述电层顶部的导电层,所述导电层形成所述电容器的第二电极; 以及在下部区域内形成闭合腔的塞子。

    Method for expanding a trench in a semiconductor structure
    55.
    发明授权
    Method for expanding a trench in a semiconductor structure 有权
    用于在半导体结构中扩展沟槽的方法

    公开(公告)号:US07157382B2

    公开(公告)日:2007-01-02

    申请号:US11053668

    申请日:2005-02-09

    申请人: Stephan Kudelka

    发明人: Stephan Kudelka

    IPC分类号: H01L21/461 H01L21/302

    CPC分类号: H01L21/30604 H01L27/1087

    摘要: The present invention provides a method for expanding a trench in a semiconductor structure. A trench is provided in a semiconductor substrate, hydrogen-terminated silicon surfaces are provided in the trench, anisotropic wet etching of the silicon surfaces in the trench with an alkaline etchant occur, and the trench is rinsed with a proton-containing neutralizing agent for the removal of the alkaline etchant. Between the wet etching step and the rinsing step, an anodic passivation of the etched silicon surfaces in the trench is carried out, in the course of which an etching stop layer is formed on the etched silicon surfaces in the trench.

    摘要翻译: 本发明提供了一种用于扩展半导体结构中的沟槽的方法。 在半导体衬底中设置沟槽,在沟槽中设置氢封端的硅表面,发生在碱性蚀刻剂中的沟槽中的硅表面的各向异性湿蚀刻,并且用含质子的中和剂冲洗沟槽 去除碱性蚀刻剂。 在湿蚀刻步骤和漂洗步骤之间,在沟槽中进行蚀刻的硅表面的阳极钝化,在该过程中,在沟槽中蚀刻的硅表面上形成蚀刻停止层。

    Method for patterning ceramic layers
    58.
    发明授权
    Method for patterning ceramic layers 失效
    图案化陶瓷层的方法

    公开(公告)号:US06953722B2

    公开(公告)日:2005-10-11

    申请号:US10425461

    申请日:2003-04-29

    IPC分类号: H01L21/311 H01L21/8242

    CPC分类号: H01L27/10867 H01L21/31133

    摘要: In a method for forming patterned ceramic layers, a ceramic material is deposited on a substrate and is subsequently densified by heat treatment, for example. In this case, the initially amorphous material is converted into a crystalline or polycrystalline form. In order that the now crystalline material can be removed again from the substrate, imperfections are produced in the ceramic material, for example by ion implantation. As a result, the etching medium can more easily attack the ceramic material, so that the latter can be removed with a higher etching rate. Through inclined implantation, the method can be performed in a self-aligning manner and the ceramic material can be removed on one side, by way of example, in trenches or deep trench capacitors.

    摘要翻译: 在用于形成图案化陶瓷层的方法中,陶瓷材料沉积在基底上,并随后通过热处理致密化。 在这种情况下,最初的无定形材料被转化为结晶或多晶形式。 为了现在的结晶材料可以再次从衬底去除,例如通过离子注入在陶瓷材料中产生缺陷。 结果,蚀刻介质可以更容易地侵蚀陶瓷材料,使得后者可以以更高的蚀刻速率被去除。 通过倾斜注入,该方法可以以自对准的方式进行,并且陶瓷材料可以通过例如在沟槽或深沟槽电容器中被一侧除去。