High density plasma oxidation
    121.
    发明授权
    High density plasma oxidation 失效
    高密度等离子体氧化

    公开(公告)号:US07273638B2

    公开(公告)日:2007-09-25

    申请号:US10338254

    申请日:2003-01-07

    摘要: A method of oxidizing a substrate having area of about 30,000 mm2 or more. The surface is preferably comprised of silicon-containing materials, such as silicon, silicon germanium, silicon carbide, silicon nitride, and metal suicides. A mixture of oxygen-bearing gas and diluent gas normally non-reactive to oxygen, such as Ne, Ar, Kr, Xe, and/or Rn are ionized to create a plasma having an electron density of at least about 1e12 cm−3 and containing ambient electrons having an average temperature greater than about 1 eV. The substrate surface is oxidized with energetic particles, comprising primarily atomic oxygen, created in the plasma to form an oxide film of substantially uniform thickness. The oxidation of the substrate takes place at a temperature below about 700° C., e.g., between about room temperature, 20° C., and about 500° C.

    摘要翻译: 一种氧化具有约30,000mm 2以上面积的基材的方法。 该表面优选由含硅材料,例如硅,硅锗,碳化硅,氮化硅和金属硅化物组成。 通常对氧气(例如Ne,Ar,Kr,Xe和/或Rn)通常不与氧反应的含氧气体和稀释气体的混合物被电离以产生电子密度为至少约1e12cm -3,并且包含平均温度大于约1eV的环境电子。 衬底表面被能量粒子氧化,主要由等离子体中产生的原子氧组成,形成厚度基本均匀的氧化膜。 衬底的氧化在低于约700℃的温度下进行,例如在约室温,20℃和约500℃之间。

    TEOS assisted oxide CMP process
    123.
    发明授权
    TEOS assisted oxide CMP process 失效
    TEOS辅助氧化物CMP工艺

    公开(公告)号:US07091103B2

    公开(公告)日:2006-08-15

    申请号:US10314865

    申请日:2002-12-09

    摘要: CMP of integrated circuits containing DRAM arrays with trench capacitors fill the trenches with oxide, resulting in a an array of oxide structures that is dense compared with the concentration in the surrounding support structures and therefore has a higher loading. A conformal layer is deposited over the wafer, increasing the loading in the array, but filling in spaces between active areas. A blanket etch removes material in both the array and the supports. A block etch balances the amount of material in the array and the supports. A supplementary oxide deposition in the array fills spaces between the structures to a nearly uniform density.

    摘要翻译: 包含具有沟槽电容器的DRAM阵列的集成电路的CMP用氧化物填充沟槽,导致与周围的支撑结构中的浓度相比密集的氧化物结构的阵列,因此具有更高的负载。 保形层沉积在晶片上,增加阵列中的负载,但填充有效区域之间的空间。 覆盖蚀刻去除阵列和支撑体中的材料。 块蚀刻平衡阵列中的材料和支撑体的数量。 阵列中的补充氧化物沉积将结构之间的空间填充到几乎均匀的密度。

    Structure and method for improved isolation in trench storage cells
    124.
    发明授权
    Structure and method for improved isolation in trench storage cells 失效
    用于改善沟槽存储单元隔离的结构和方法

    公开(公告)号:US06437401B1

    公开(公告)日:2002-08-20

    申请号:US09824957

    申请日:2001-04-03

    IPC分类号: H01L2976

    摘要: A trench capacitor structure for improved charge retention and method of manufacturing thereof are provided. A trench is formed in a p-type conductivity semiconductor substrate. An isolation collar is located in an upper portion of the trench. The substrate adjacent the upper portion of the trench contains a first n+ type conductivity region and a second n+ type conductivity region. These regions each abut a wall of the trench and are separated vertically by a portion of the p-type conductivity semiconductor substrate. A void which encircles the perimeter of the trench is formed into the wall of the trench and is located in the substrate between the first and second n+ type conductivity regions.

    摘要翻译: 提供了用于改善电荷保留的沟槽电容器结构及其制造方法。 在p型导电性半导体衬底中形成沟槽。 隔离套环位于沟槽的上部。 与沟槽上部相邻的衬底包含第一n +型导电区​​和第二n +型导电区​​。 这些区域各自邻接沟槽的壁并且被p型导电性半导体衬底的一部分垂直分开。 围绕沟槽的周边的空隙形成沟槽的壁,并且位于第一和第二n +型导电区​​域之间的衬底中。

    Method for forming and filling isolation trenches
    125.
    发明授权
    Method for forming and filling isolation trenches 有权
    用于形成和填充隔离沟槽的方法

    公开(公告)号:US06294423B1

    公开(公告)日:2001-09-25

    申请号:US09718211

    申请日:2000-11-21

    IPC分类号: H01L218242

    CPC分类号: H01L21/76229 H01L27/1087

    摘要: A method for forming isolation trenches for a semiconductor device forms, in a substrate, a plurality of trenches having different widths including widths above a threshold size and widths below a threshold size. The plurality of trenches have a same first depth. A masking layer is deposited in the plurality of trenches, the masking layer has a thickness sufficient to both line the trenches with the widths above the threshold size and completely fill the trenches with the widths below the threshold size. A portion of the substrate is exposed at a bottom of the trenches with the widths above the threshold size by etching the masking layer. The plurality of trenches is etched to extend the trenches with the widths above the threshold size to different depths.

    摘要翻译: 用于形成用于半导体器件的隔离沟槽的方法在衬底中形成具有不同宽度的多个沟槽,所述宽度包括高于阈值尺寸的宽度和低于阈值尺寸的宽度。 多个沟槽具有相同的第一深度。 掩蔽层沉积在多个沟槽中,掩模层具有足够的厚度以使沟槽线宽度高于阈值尺寸,并以宽度低于阈值尺寸完全填充沟槽。 通过蚀刻掩模层,将衬底的一部分暴露在沟槽底部,宽度高于阈值大小。 多个沟槽被蚀刻以将具有高于阈值尺寸的宽度的沟槽延伸到不同的深度。

    Methods of Forming Replacement Gate Structures for Semiconductor Devices
    127.
    发明申请
    Methods of Forming Replacement Gate Structures for Semiconductor Devices 审中-公开
    形成半导体器件的替代栅极结构的方法

    公开(公告)号:US20130187236A1

    公开(公告)日:2013-07-25

    申请号:US13354844

    申请日:2012-01-20

    IPC分类号: H01L27/092 H01L21/28

    摘要: Disclosed herein are methods of forming replacement gate structures. In one example, the method includes forming a sacrificial gate structure above a semiconducting substrate, removing the sacrificial gate structure to thereby define a gate cavity, forming a layer of insulating material in the gate cavity and forming a layer of metal within the gate cavity above the layer of insulating material. The method further includes forming a sacrificial material in the gate cavity so as to cover a portion of the layer of metal and thereby define an exposed portion of the layer of metal, performing an etching process on the exposed portion of the layer of metal to thereby remove the exposed portion of the layer of metal from within the gate cavity, and, after performing the etching process, removing the sacrificial material and forming a conductive material above the remaining portion of the layer of metal.

    摘要翻译: 这里公开了形成替换栅极结构的方法。 在一个示例中,该方法包括在半导体衬底之上形成牺牲栅极结构,去除牺牲栅极结构从而限定栅极腔,在栅极腔中形成绝缘材料层并在栅极腔内形成金属层 绝缘材料层。 该方法还包括在栅腔中形成牺牲材料以覆盖金属层的一部分,从而限定金属层的暴露部分,对金属层的暴露部分进行蚀刻工艺,由此 从栅极腔内去除金属层的暴露部分,并且在执行蚀刻工艺之后,去除牺牲材料并在金属层的剩余部分上方形成导电材料。

    Self-aligned silicidation for replacement gate process
    128.
    发明授权
    Self-aligned silicidation for replacement gate process 有权
    用于替代浇口工艺的自对准硅化物

    公开(公告)号:US08361870B2

    公开(公告)日:2013-01-29

    申请号:US12843350

    申请日:2010-07-26

    IPC分类号: H01L21/336

    摘要: A semiconductor device is formed with low resistivity self aligned silicide contacts with high-K/metal gates. Embodiments include postponing silicidation of a metal layer on source/drain regions in a silicon substrate until deposition of a high-K dielectric, thereby preserving the physical and morphological properties of the silicide film and improving device performance. An embodiment includes forming a replaceable gate electrode on a silicon-containing substrate, forming source/drain regions, forming a metal layer on the source/drain regions, forming an ILD over the metal layer on the substrate, removing the replaceable gate electrode, thereby forming a cavity, depositing a high-K dielectric layer in the cavity at a temperature sufficient to initiate a silicidation reaction between the metal layer and underlying silicon, and forming a metal gate electrode on the high-K dielectric layer.

    摘要翻译: 半导体器件形成为具有高K /金属栅极的低电阻率自对准硅化物接触。 实施例包括在硅衬底的源极/漏极区域上延迟金属层的硅化物,直到沉积高K电介质,从而保持硅化物膜的物理和形态特性并提高器件性能。 一个实施例包括在含硅衬底上形成可替换的栅电极,形成源极/漏极区域,在源极/漏极区域上形成金属层,在衬底上的金属层上形成ILD,去除可更换的栅电极,由此 形成空腔,在足以在金属层和下层硅之间引发硅化反应的温度下在腔中沉积高K电介质层,以及在高K电介质层上形成金属栅电极。

    METHODS FOR FABRICATING DEVICE FEATURES HAVING SMALL DIMENSIONS
    129.
    发明申请
    METHODS FOR FABRICATING DEVICE FEATURES HAVING SMALL DIMENSIONS 有权
    用于制造具有小尺寸的器件特征的方法

    公开(公告)号:US20080179281A1

    公开(公告)日:2008-07-31

    申请号:US11872399

    申请日:2007-10-15

    IPC分类号: B31D3/00

    CPC分类号: H01L21/0337 H01L21/0274

    摘要: Methods for fabricating devices having small feature sizes are provided. In an exemplary embodiment, a method comprises forming a patterned first mask layer overlying a subject material layer and isotropically etching the patterned first mask layer. A second masking layer is deposited overlying the patterned first mask layer and the isotropically-etched patterned first mask layer is exposed. The isotropically-etched patterned first mask layer is removed and the subject material layer is etched to form a feature therein.

    摘要翻译: 提供了具有小特征尺寸的装置的制造方法。 在示例性实施例中,一种方法包括形成覆盖主体材料层的图案化的第一掩模层,并且各向同性地蚀刻图案化的第一掩模层。 沉积覆盖图案化的第一掩模层的第二掩模层,并暴露各向同性蚀刻的图案化的第一掩模层。 去除各向同性蚀刻的图案化的第一掩模层,并蚀刻主体材料层以在其中形成特征。

    Methods for fabricating device features having small dimensions
    130.
    发明授权
    Methods for fabricating device features having small dimensions 有权
    制造具有小尺寸的器件特征的方法

    公开(公告)号:US07297636B1

    公开(公告)日:2007-11-20

    申请号:US11669389

    申请日:2007-01-31

    IPC分类号: H01L21/302

    CPC分类号: H01L21/0337 H01L21/0274

    摘要: Methods for fabricating devices having small feature sizes are provided. In an exemplary embodiment, a method comprises forming a patterned first mask layer overlying a subject material layer and isotropically etching the patterned first mask layer. A second masking layer is deposited overlying the patterned first mask layer and the isotropically-etched patterned first mask layer is exposed. The isotropically-etched patterned first mask layer is removed and the subject material layer is etched to form a feature therein.

    摘要翻译: 提供了具有小特征尺寸的装置的制造方法。 在示例性实施例中,一种方法包括形成覆盖主体材料层的图案化的第一掩模层,并且各向同性地蚀刻图案化的第一掩模层。 沉积覆盖图案化的第一掩模层的第二掩模层,并暴露各向同性蚀刻的图案化的第一掩模层。 去除各向同性蚀刻的图案化的第一掩模层,并蚀刻主体材料层以在其中形成特征。