Damascene process capable of avoiding via resist poisoning
    21.
    发明授权
    Damascene process capable of avoiding via resist poisoning 有权
    大马士革过程能够避免通过抗蚀剂中毒

    公开(公告)号:US07135400B2

    公开(公告)日:2006-11-14

    申请号:US10709278

    申请日:2004-04-26

    IPC分类号: H01L21/4763

    CPC分类号: H01L21/76811 H01L21/76813

    摘要: A method for avoiding resist poisoning during a damascene process is disclosed. A semiconductor substrate is provided with a low-k dielectric layer (k≦2.9) thereon, a SiC layer over the low-k dielectric layer, and a blocking layer over the SiC layer. The blocking layer is used to prevent unpolymerized precursors diffused out from the low-k dielectric layer from contacting an overlying resist. A bottom anti-reflection coating (BARC) layer is formed on the blocking layer. A resist layer is formed on the BARC layer, the resist layer having an opening to expose a portion of the BARC layer. A damascene structure is formed in the low-k dielectric layer by etching the BARC layer, the blocking layer, the SiC layer, and the low-k dielectric layer through the opening.

    摘要翻译: 公开了一种在大马士革过程中避免抗蚀剂中毒的方法。 在半导体衬底上设置有低k电介质层(k <= 2.9),在低k电介质层上的SiC层和在SiC层上的阻挡层。 阻挡层用于防止从低k电介质层扩散的未聚合的前体与上覆抗蚀剂接触。 在阻挡层上形成底部防反射涂层(BARC)层。 在BARC层上形成抗蚀剂层,抗蚀剂层具有露出BARC层的一部分的开口。 通过开口蚀刻BARC层,阻挡层,SiC层和低k电介质层,在低k电介质层中形成镶嵌结构。

    Plasma etching process
    22.
    发明申请
    Plasma etching process 审中-公开
    等离子体蚀刻工艺

    公开(公告)号:US20060134921A1

    公开(公告)日:2006-06-22

    申请号:US11295680

    申请日:2005-12-05

    摘要: A plasma etching process is described. A substrate having a low-k material layer and a metal hard mask layer sequentially formed thereon is provided, wherein the metal hard mask layer exposes a portion of the low-k material layer. The low-k material layer is then etched with plasma of a gas mixture of helium (He) and at least one fluorinated hydrocarbon by using the metal hard mask layer as a mask.

    摘要翻译: 描述等离子体蚀刻工艺。 提供了在其上顺序地形成有低k材料层和金属硬掩模层的基板,其中金属硬掩模层暴露低k材料层的一部分。 然后通过使用金属硬掩模层作为掩模,用等离子体氦(He)和至少一种氟化烃的气体混合物的等离子体蚀刻低k材料层。

    METHOD OF REMOVING SPACERS AND FABRICATING MOS TRANSISTOR
    23.
    发明申请
    METHOD OF REMOVING SPACERS AND FABRICATING MOS TRANSISTOR 有权
    去除间隔器和制造MOS晶体管的方法

    公开(公告)号:US20060134899A1

    公开(公告)日:2006-06-22

    申请号:US10905185

    申请日:2004-12-21

    IPC分类号: H01L21/461

    摘要: A method of removing spacers after forming a MOS transistor on a wafer. The MOS transistor comprises a gate disposed on the substrate, spacers disposed on the sidewalls of the gate and a source and a drain region in the substrate beside the spacers. The spacers are removed by performing a wet etching process in the dark such that during the spacer removal process, the source and the drain region in a MOS transistor can be prevented from damages.

    摘要翻译: 在晶片上形成MOS晶体管之后去除间隔物的方法。 MOS晶体管包括设置在衬底上的栅极,设置在栅极的侧壁上的间隔物以及衬垫旁边的源极和漏极区域。 通过在黑暗中执行湿式蚀刻工艺来去除间隔物,使得在间隔物去除工艺期间,可以防止MOS晶体管中的源极和漏极区域损坏。

    Post metal etch cleaning method
    24.
    发明授权
    Post metal etch cleaning method 有权
    后金属蚀刻清洗方法

    公开(公告)号:US06440873B1

    公开(公告)日:2002-08-27

    申请号:US09792952

    申请日:2001-02-26

    IPC分类号: H01L2100

    CPC分类号: H01L21/02071 C23G5/028

    摘要: A post metal etch cleaning method which begins by providing a wafer with an etched metal layer formed thereon, wherein the etched metal layer is covered with a polymer residue. A fluorine based organic acid solvent is used to clean the metal layer, followed by removing the solvent by a physical method. Next, a de-ionized water is applied to flush the metal layer before performing a drying step on the wafer to dry the metal layer.

    摘要翻译: 一种后金属蚀刻清洁方法,其通过为晶片上形成有蚀刻的金属层开始,其中蚀刻的金属层被聚合物残余物覆盖。 使用氟类有机酸溶剂清洗金属层,然后用物理方法除去溶剂。 接下来,在对晶片进行干燥步骤之前,施加去离子水以冲洗金属层以干燥金属层。

    Method of fabricating strained-silicon transistors and strained-silicon CMOS transistors
    26.
    发明授权
    Method of fabricating strained-silicon transistors and strained-silicon CMOS transistors 有权
    制造应变硅晶体管和应变硅CMOS晶体管的方法

    公开(公告)号:US07491615B2

    公开(公告)日:2009-02-17

    申请号:US11162798

    申请日:2005-09-23

    IPC分类号: H01L21/336

    摘要: A method of fabricating strained-silicon transistors includes providing a semiconductor substrate, in which the semiconductor substrate contains a gate structure thereon; performing an etching process to form two recesses corresponding to the gate structure within the semiconductor substrate; performing an oxygen flush on the semiconductor substrate; performing a cleaning process on the semiconductor substrate; and performing a selective epitaxial growth (SEG) to form an epitaxial layer in each recess for forming a source/drain region.

    摘要翻译: 制造应变硅晶体管的方法包括:提供半导体衬底,其中半导体衬底在其上包含栅极结构; 执行蚀刻工艺以形成对应于半导体衬底内的栅极结构的两个凹部; 在半导体衬底上进行氧冲洗; 对所述半导体衬底进行清洁处理; 并且在每个用于形成源/漏区的凹槽中执行选择性外延生长(SEG)以形成外延层。

    Metal oxide semiconductor transistor
    27.
    发明授权
    Metal oxide semiconductor transistor 有权
    金属氧化物半导体晶体管

    公开(公告)号:US07214988B2

    公开(公告)日:2007-05-08

    申请号:US11162693

    申请日:2005-09-20

    IPC分类号: H01L29/76

    摘要: A method for forming a metal oxide semiconductor (MOS) transistor is provided. First, a gate structure is formed over a substrate. Then, offset spacers are formed on respective sidewalls of the gate structure. A first ion implantation process is performed to form a lightly doped drain (LDD) in the substrate beside the gate structure. Other spacers are formed on respective sidewalls of the offset spacers. Thereafter, a second ion implantation process is performed to form source/drain region in the substrate beside the spacers. Then, a metal silicide layer is formed on the surface of the source and the drain. An oxide layer is formed on the surface of the metal silicide layer. The spacers are removed and an etching stop layer is formed on the substrate. With the oxide layer over the metal silicide layer, the solvent for removing the spacers is prevented from damaging the metal silicide layer.

    摘要翻译: 提供一种用于形成金属氧化物半导体(MOS)晶体管的方法。 首先,在基板上形成栅极结构。 然后,在栅极结构的相应侧壁上形成偏移间隔物。 执行第一离子注入工艺以在栅极结构旁边的衬底中形成轻掺杂漏极(LDD)。 在偏置间隔物的相应侧壁上形成其它间隔物。 此后,进行第二离子注入工艺以在衬垫旁边的衬垫上形成源极/漏极区域。 然后,在源极和漏极的表面上形成金属硅化物层。 在金属硅化物层的表面上形成氧化物层。 去除间隔物,并在衬底上形成蚀刻停止层。 通过金属硅化物层上的氧化物层,可以防止用于除去间隔物的溶剂损坏金属硅化物层。

    Method of manufacturing metal-oxide-semiconductor transistor devices
    28.
    发明申请
    Method of manufacturing metal-oxide-semiconductor transistor devices 审中-公开
    制造金属氧化物半导体晶体管器件的方法

    公开(公告)号:US20070072358A1

    公开(公告)日:2007-03-29

    申请号:US11162954

    申请日:2005-09-29

    IPC分类号: H01L21/8238 H01L21/44

    摘要: A method of manufacturing a metal-oxide-semiconductor transistor device is disclosed. In the method, a silicon nitride spacer is formed and will be removed after an ion implantation process to form a source/drain region and a salicide process to form a metal silicide layer on the surface of the source/drain region and the gate electrode. The metal silicide layer is formed to comprise silicon (Si), nickel (Ni) and at least one metal selected from a group consisting of iridium (Ir), iron (Fe), cobalt (Co), platinum (Pt), palladium (Pd), molybdenum (Mo), and tantalum (Ta); therefore, when the silicon nitride spacer is removed by etching, the metal silicide layer is not damaged.

    摘要翻译: 公开了一种制造金属氧化物半导体晶体管器件的方法。 在该方法中,形成氮化硅间隔物,并且在离子注入工艺之后将被去除以形成源极/漏极区域和自对准硅化物工艺,以在源极/漏极区域和栅极电极的表面上形成金属硅化物层。 金属硅化物层形成为包括硅(Si),镍(Ni)和选自铱(Ir),铁(Fe),钴(Co),铂(Pt),钯( Pd),钼(Mo)和钽(Ta); 因此,当通过蚀刻除去氮化硅间隔物时,金属硅化物层不被损坏。

    Method of removing spacers and fabricating MOS transistor
    30.
    发明授权
    Method of removing spacers and fabricating MOS transistor 有权
    去除间隔物并制造MOS晶体管的方法

    公开(公告)号:US07196019B2

    公开(公告)日:2007-03-27

    申请号:US10905185

    申请日:2004-12-21

    IPC分类号: H01L21/302

    摘要: A method of removing spacers after forming a MOS transistor on a wafer. The MOS transistor comprises a gate disposed on the substrate, spacers disposed on the sidewalls of the gate and a source and a drain region in the substrate beside the spacers. The spacers are removed by performing a wet etching process in the dark such that during the spacer removal process, the source and the drain region in a MOS transistor can be prevented from damages.

    摘要翻译: 在晶片上形成MOS晶体管之后去除间隔物的方法。 MOS晶体管包括设置在衬底上的栅极,设置在栅极的侧壁上的间隔物以及衬垫旁边的源极和漏极区域。 通过在黑暗中执行湿式蚀刻工艺来去除间隔物,使得在间隔物去除工艺期间,可以防止MOS晶体管中的源极和漏极区域损坏。