Method of preventing threshold voltage of MOS transistor from being decreased by shallow trench isolation formation
    1.
    发明授权
    Method of preventing threshold voltage of MOS transistor from being decreased by shallow trench isolation formation 失效
    通过浅沟槽隔离形成来防止MOS晶体管的阈值电压降低的方法

    公开(公告)号:US06908810B2

    公开(公告)日:2005-06-21

    申请号:US09924903

    申请日:2001-08-08

    摘要: A method of preventing decreasing threshold voltage of a MOS transistor by formation of shallow trench isolation. Shallow trenches are formed to isolate first active regions and second active regions. The first active regions are located within a core circuit region, while the second active regions are located within a peripheral circuit region. A first ion implantation to form well regions is performed on the first and second active regions, respectively. A second ion implantation is performed on the second active region and edges of the first active regions to form second channel doping regions and to increase ion concentration at the edges of the first active regions, respectively. A third ion implantation is further performed on the first active regions to form first channel doping regions.

    摘要翻译: 通过形成浅沟槽隔离来防止MOS晶体管的阈值电压降低的方法。 形成浅沟槽以隔离第一有源区和第二有源区。 第一有源区域位于核心电路区域内,而第二有源区域位于外围电路区域内。 在第一和第二活性区上分别进行形成阱区的第一离子注入。 在第二有源区域和第一有源区域的边缘上执行第二离子注入以形成第二沟道掺杂区域并分别增加第一有源区域的边缘处的离子浓度。 在第一有源区上进一步执行第三离子注入以形成第一沟道掺杂区。

    STI stress modulation with additional implantation and natural pad sin mask
    3.
    发明授权
    STI stress modulation with additional implantation and natural pad sin mask 有权
    STI应力调制与附加植入和天然衬垫sin掩模

    公开(公告)号:US07851328B2

    公开(公告)日:2010-12-14

    申请号:US12235329

    申请日:2008-09-22

    IPC分类号: H01L21/76

    摘要: A method of manufacturing a semiconductor structure is provided. The method includes forming a hard mask pattern on a semiconductor substrate, wherein the hard mask pattern covers active regions; forming a trench in the semiconductor substrate within an opening defined by the hard mask pattern; filling the trench with a dielectric material, resulting in a trench isolation feature; performing an ion implantation to the trench isolation feature using the hard mask pattern to protect active regions of the semiconductor substrate; and removing the hard mask pattern after the performing of the ion implantation.

    摘要翻译: 提供一种制造半导体结构的方法。 该方法包括在半导体衬底上形成硬掩模图案,其中硬掩模图案覆盖有源区; 在由所述硬掩模图案限定的开口内在所述半导体衬底中形成沟槽; 用电介质材料填充沟槽,导致沟槽隔离特征; 使用所述硬掩模图案对所述沟槽隔离特征进行离子注入以保护所述半导体衬底的有源区; 并且在执行离子注入之后去除硬掩模图案。

    Source/Drain Strained Layers
    4.
    发明申请
    Source/Drain Strained Layers 有权
    源/排水层

    公开(公告)号:US20090108290A1

    公开(公告)日:2009-04-30

    申请号:US11923420

    申请日:2007-10-24

    IPC分类号: H01L29/78

    摘要: A semiconductor device and method of manufacture thereof wherein a PMOS source/drain region of a transistor within the substrate includes a first strained layer in the PMOS source/drain region and a first capping layer in contact with the first strained layer. Further, the semiconductor device and method provide for an NMOS source/drain region of a transistor within the substrate including a second strained layer in the NMOS source/drain region and a second capping layer in contact with the second strained layer.

    摘要翻译: 一种半导体器件及其制造方法,其中所述衬底内的晶体管的PMOS源极/漏极区域包括所述PMOS源极/漏极区域中的第一应变层和与所述第一应变层接触的第一覆盖层。 此外,半导体器件和方法提供了衬底内的晶体管的NMOS源极/漏极区域,其包括NMOS源极/漏极区域中的第二应变层和与第二应变层接触的第二覆盖层。

    Hybrid STI stressor with selective re-oxidation anneal
    5.
    发明授权
    Hybrid STI stressor with selective re-oxidation anneal 有权
    混合STI应力选择性再氧化退火

    公开(公告)号:US07276417B2

    公开(公告)日:2007-10-02

    申请号:US11320221

    申请日:2005-12-28

    IPC分类号: H01L21/336

    摘要: A method for forming stressors in a semiconductor substrate is provided. The method includes providing a semiconductor substrate including a first device region and a second device region, forming shallow trench isolation (STI) regions with a high-shrinkage dielectric material in the first and the second device regions wherein the STI regions define a first active region in the first device region and a second active region in the second device region, forming an insulation mask over the STI region and the first active region in the first device region wherein the insulation mask does not extend over the second device region, and performing a stress-tuning treatment to the semiconductor substrate. The first active region and second active region have tensile stress and compressive stress respectively. An NMOS and a PMOS device are formed on the first and second active regions, respectively.

    摘要翻译: 提供了一种在半导体衬底中形成应力源的方法。 该方法包括提供包括第一器件区域和第二器件区域的半导体衬底,在第一和第二器件区域中形成具有高收缩介电材料的浅沟槽隔离(STI)区域,其中STI区域限定第一有源区域 在所述第一器件区域和所述第二器件区域中的第二有源区域中,在所述STI区域和所述第一器件区域中的所述第一有源区域上形成绝缘掩模,其中所述绝缘掩模不在所述第二器件区域上延伸,并执行 对半导体衬底进行应力调谐处理。 第一活性区和第二活性区分别具有拉伸应力和压应力。 分别在第一和第二有源区上形成NMOS和PMOS器件。

    STI STRESS MODULATION WITH ADDITIONAL IMPLANTATION AND NATURAL PAD SIN MASK
    8.
    发明申请
    STI STRESS MODULATION WITH ADDITIONAL IMPLANTATION AND NATURAL PAD SIN MASK 有权
    STI应力调整与附加植入和自然垫一起掩蔽

    公开(公告)号:US20100075480A1

    公开(公告)日:2010-03-25

    申请号:US12235329

    申请日:2008-09-22

    IPC分类号: H01L21/76

    摘要: A method of manufacturing a semiconductor structure is provided. The method includes forming a hard mask pattern on a semiconductor substrate, wherein the hard mask pattern covers active regions; forming a trench in the semiconductor substrate within an opening defined by the hard mask pattern; filling the trench with a dielectric material, resulting in a trench isolation feature; performing an ion implantation to the trench isolation feature using the hard mask pattern to protect active regions of the semiconductor substrate; and removing the hard mask pattern after the performing of the ion implantation.

    摘要翻译: 提供一种制造半导体结构的方法。 该方法包括在半导体衬底上形成硬掩模图案,其中硬掩模图案覆盖有源区; 在由所述硬掩模图案限定的开口内在所述半导体衬底中形成沟槽; 用电介质材料填充沟槽,导致沟槽隔离特征; 使用所述硬掩模图案对所述沟槽隔离特征进行离子注入以保护所述半导体衬底的有源区; 并且在执行离子注入之后去除硬掩模图案。

    Resolving pattern-loading issues of SiGe stressor
    9.
    发明授权
    Resolving pattern-loading issues of SiGe stressor 有权
    解决SiGe应激源的模式加载问题

    公开(公告)号:US07579248B2

    公开(公告)日:2009-08-25

    申请号:US11352588

    申请日:2006-02-13

    IPC分类号: H01L21/336

    摘要: A method for improving uniformity of stressors of MOS devices is provided. The method includes forming a gate dielectric over a semiconductor substrate, forming a gate electrode on the gate dielectric, forming a spacer on respective sidewalls of the gate electrode and the gate dielectric, forming a recess in the semiconductor adjacent the spacer, and depositing SiGe in the recess to form a SiGe stressor. The method further includes etching the SiGe stressor to improve the uniformity of SiGe stressors.

    摘要翻译: 提供了一种改善MOS器件的应力源均匀性的方法。 该方法包括在半导体衬底上形成栅极电介质,在栅极电介质上形成栅电极,在栅电极和栅极电介质的相应侧壁上形成间隔物,在邻近间隔物的半导体中形成凹陷,并将SiGe沉积在 凹陷形成SiGe应激源。 该方法还包括蚀刻SiGe应力器以改善SiGe应力的均匀性。