Chemistry for etching organic low-k materials
    21.
    发明授权
    Chemistry for etching organic low-k materials 失效
    化学蚀刻有机低k材料

    公开(公告)号:US6040248A

    公开(公告)日:2000-03-21

    申请号:US104032

    申请日:1998-06-24

    CPC分类号: H01L21/31138 H01L21/76802

    摘要: A process for plasma etching of contact and via openings in low-k organic polymer dielectric layers is described which overcomes problems of sidewall bowing and hardmask pattern deterioration by etching the organic layer in a high density plasma etcher with a chlorine/inert gas plasma. By adding chlorine to the oxygen/inert gas plasma, the development of an angular aspect or faceting of the hardmask pattern edges by ion bombardment is abated. Essentially vertical sidewalls are obtained in the openings etched in the organic polymer layer while hardmask pattern integrity is maintained. The addition of a passivating agent such as nitrogen, BCl.sub.3, or CHF.sub.3 to the etchant gas mixture further improves the sidewall profile by reducing bowing through protective polymer formation.

    摘要翻译: 描述了一种用于等离子体蚀刻低k有机聚合物介电层中的接触和通孔开口的方法,其通过用氯/惰性气体等离子体在高密度等离子体蚀刻机中蚀刻有机层来克服侧壁弯曲和硬掩模图案劣化的问题。 通过向氧/惰性气体等离子体中加入氯,减少了通过离子轰击形成硬掩模图案边缘的角度方面或刻面。 在保持硬掩模图案完整性的同时,在有机聚合物层中蚀刻的开口中获得基本垂直的侧壁。 钝化剂如氮气,BCl3或CHF3添加到蚀刻剂气体混合物中,通过减少通过保护性聚合物形成的弯曲来进一步改善侧壁轮廓。

    Silicon nitride etching in a single wafer apparatus
    24.
    发明授权
    Silicon nitride etching in a single wafer apparatus 有权
    在单晶片装置中进行氮化硅蚀刻

    公开(公告)号:US09355874B2

    公开(公告)日:2016-05-31

    申请号:US13244337

    申请日:2011-09-24

    CPC分类号: H01L21/6708 H01L21/31111

    摘要: A single wafer etching apparatus and various methods implemented in the single wafer etching apparatus are disclosed. In an example, etching a silicon nitride layer in a single wafer etching apparatus includes: heating a phosphoric acid to a first temperature; heating a sulfuric acid to a second temperature; mixing the heated phosphoric acid and the heated sulfuric acid; heating the phosphoric acid/sulfuric acid mixture to a third temperature; and etching the silicon nitride layer with the heated phosphoric acid/sulfuric acid mixture.

    摘要翻译: 公开了在单晶片蚀刻装置中实现的单晶片蚀刻装置和各种方法。 在一个实施例中,在单晶片蚀刻装置中蚀刻氮化硅层包括:将磷酸加热至第一温度; 将硫酸加热至第二温度; 混合加热的磷酸和加热的硫酸; 将磷酸/硫酸混合物加热至第三温度; 并用加热的磷酸/硫酸混合物蚀刻氮化硅层。

    COMPOSITE DUMMY GATE WITH CONFORMAL POLYSILICON LAYER FOR FINFET DEVICE
    26.
    发明申请
    COMPOSITE DUMMY GATE WITH CONFORMAL POLYSILICON LAYER FOR FINFET DEVICE 有权
    用于FINFET器件的具有合成多晶硅层的复合绝缘栅

    公开(公告)号:US20130187235A1

    公开(公告)日:2013-07-25

    申请号:US13353975

    申请日:2012-01-19

    IPC分类号: H01L27/092 H01L21/28

    摘要: The present disclosure involves a FinFET. The FinFET includes a fin structure formed over a substrate. A gate dielectric layer is least partially wrapped around a segment of the fin structure. The gate dielectric layer contains a high-k gate dielectric material. The FinFET includes a polysilicon layer conformally formed on the gate dielectric layer. The FinFET includes a metal gate electrode layer formed over the polysilicon layer. The present disclosure provides a method of fabricating a FinFET. The method includes providing a fin structure containing a semiconductor material. The method includes forming a gate dielectric layer over the fin structure, the gate dielectric layer being at least partially wrapped around the fin structure. The method includes forming a polysilicon layer over the gate dielectric layer, wherein the polysilicon layer is formed in a conformal manner. The method includes forming a dummy gate layer over the polysilicon layer.

    摘要翻译: 本公开涉及FinFET。 FinFET包括在衬底上形成的翅片结构。 栅介质层最少部分地缠绕在翅片结构的一段上。 栅介质层包含高k栅介质材料。 FinFET包括在栅介质层上共形形成的多晶硅层。 FinFET包括在多晶硅层上形成的金属栅极电极层。 本公开提供了制造FinFET的方法。 该方法包括提供包含半导体材料的翅片结构。 该方法包括在鳍结构上方形成栅极电介质层,栅介质层至少部分地围绕翅片结构缠绕。 该方法包括在栅介质层上形成多晶硅层,其中多晶硅层以保形方式形成。 该方法包括在多晶硅层上形成伪栅极层。

    Strained Isolation Regions
    28.
    发明申请
    Strained Isolation Regions 有权
    应变隔离区域

    公开(公告)号:US20080303102A1

    公开(公告)日:2008-12-11

    申请号:US11759791

    申请日:2007-06-07

    IPC分类号: H01L29/78

    摘要: An isolation trench having localized stressors is provided. In accordance with embodiments of the present invention, a trench is formed in a substrate and partially filled with a dielectric material. In an embodiment, the trench is filled with a dielectric layer and a planarization step is performed to planarize the surface with the surface of the substrate. The dielectric material is then recessed below the surface of the substrate. In the recessed portion of the trench, the dielectric material may remain along the sidewalls or the dielectric material may be removed along the sidewalls. A stress film, either tensile or compressive, may then be formed over the dielectric material within the recessed portion. The stress film may also extend over a transistor or other semiconductor structure.

    摘要翻译: 提供了具有局部应力源的隔离沟槽。 根据本发明的实施例,在衬底中形成沟槽并且部分地填充有电介质材料。 在一个实施例中,沟槽被填充有电介质层,并且执行平面化步骤以使其与衬底的表面平坦化。 然后将电介质材料凹入到衬底的表面下方。 在沟槽的凹陷部分中,电介质材料可以沿着侧壁保留,或者电介质材料可以沿侧壁去除。 然后可以在凹陷部分内的电介质材料上形成拉伸或压缩的应力膜。 应力膜也可以在晶体管或其它半导体结构上延伸。

    Method and system for processing multi-layer films
    29.
    发明授权
    Method and system for processing multi-layer films 有权
    多层膜加工方法及系统

    公开(公告)号:US07354524B2

    公开(公告)日:2008-04-08

    申请号:US11358393

    申请日:2006-02-21

    IPC分类号: H01L21/00 G01N21/00

    摘要: A method of processing multi-layer films, the method including: (1) processing a plurality of layers according to selected parameters, (2) determining a plurality of optical characteristics each associated with one of the plurality of layers and determined during the processing of the associated one of the plurality of layers, and (3) determining dynamic processing progressions each based on one of the plurality of optical characteristics that is associated with a particular one of the plurality of layers undergoing the processing.

    摘要翻译: 一种处理多层薄膜的方法,该方法包括:(1)根据选定的参数处理多个层,(2)确定多个光学特性,每个光学特性与多个层之一相关联,并在处理过程中确定 所述多个层中的相关联的一个层,以及(3)基于与经历所述处理的所述多个层中的特定一个层相关联的所述多个光学特性中的一个来确定动态处理进度。

    Dual damascene intermediate structure and method of fabricating same
    30.
    发明申请
    Dual damascene intermediate structure and method of fabricating same 审中-公开
    双镶嵌中间结构及其制造方法

    公开(公告)号:US20050189653A1

    公开(公告)日:2005-09-01

    申请号:US10872946

    申请日:2004-06-21

    摘要: An intermediate structure from which a dual damascene structure may be fabricated includes a first-formed, unfaceted via hole and an intersecting trench both formed by gas plasma etching of a dielectric layer. The sidewall of the via hole is maintained unfaceted during and after trench formation by substantially filling it with a gas-plasma-etchable plug prior to trench formation. The presence of the plug in the via hole during gas plasma etching of the trench, also produces a trench bottom that is substantially flat.

    摘要翻译: 可以制造双镶嵌结构的中间结构包括通过电介质层的气体等离子体蚀刻形成的第一形成的非平行通孔和交叉沟槽。 在沟槽形成期间和之后通孔的侧壁通过在沟槽形成之前用气体等离子体可蚀刻的塞子基本上填充而保持不通气。 在沟槽的气体等离子体蚀刻期间,插塞在通孔中的存在也产生基本上平坦的沟槽底部。