Device with aluminum surface protection
    2.
    发明授权
    Device with aluminum surface protection 有权
    具有铝表面保护的装置

    公开(公告)号:US08237231B2

    公开(公告)日:2012-08-07

    申请号:US13327992

    申请日:2011-12-16

    IPC分类号: H01L27/088

    摘要: A semiconductor structure with a metal gate structure includes a first type field-effect transistor having a first gate including: a high k dielectric material on a substrate, a first metal layer on the high k dielectric material layer and having a first work function, and a first aluminum layer on the first metal layer. The first aluminum layer includes an interfacial layer including aluminum, nitrogen and oxygen. The device also includes a second type field-effect transistor having a second gate including: the high k dielectric material on the substrate, a second metal layer on the high k dielectric material layer and having a second work function different from the first work function, and a second aluminum layer on the second metal layer.

    摘要翻译: 具有金属栅极结构的半导体结构包括具有第一栅极的第一型场效应晶体管,包括:基板上的高k电介质材料,高k电介质材料层上的第一金属层,具有第一功函数,以及 在第一金属层上的第一铝层。 第一铝层包括包含铝,氮和氧的界面层。 该器件还包括具有第二栅极的第二类场效应晶体管,其包括:衬底上的高k电介质材料,高k电介质材料层上的第二金属层,具有不同于第一功函数的第二功函数, 和在第二金属层上的第二铝层。

    High temperature anneal for aluminum surface protection
    3.
    发明授权
    High temperature anneal for aluminum surface protection 有权
    高温退火铝表面保护

    公开(公告)号:US08119473B2

    公开(公告)日:2012-02-21

    申请号:US12651017

    申请日:2009-12-31

    IPC分类号: H01L21/8232

    摘要: The present disclosure also provides another embodiment of a method for making metal gate stacks. The method includes forming a first dummy gate and a second dummy gate on a substrate; removing a polysilicon layer from the first dummy gate, resulting in a first gate trench; forming a first metal layer and a first aluminum layer in the first gate trench; applying a chemical mechanical polishing (CMP) process to the substrate; performing an annealing process to the first aluminum layer using a nitrogen and oxygen containing gas, forming an interfacial layer of aluminum, nitrogen and oxygen on the first aluminum layer; thereafter removing the polysilicon layer from the second dummy gate, resulting in a second gate trench; and forming a second metal layer and a second aluminum layer on the second metal layer in the second gate trench.

    摘要翻译: 本公开还提供了制造金属栅极叠层的方法的另一个实施例。 该方法包括在衬底上形成第一虚拟栅极和第二虚拟栅极; 从第一伪栅极去除多晶硅层,产生第一栅极沟槽; 在所述第一栅极沟槽中形成第一金属层和第一铝层; 对基材进行化学机械抛光(CMP)工艺; 使用含氮和氧的气体对所述第一铝层进行退火处理,在所述第一铝层上形成铝,氮和氧的界面层; 然后从第二伪栅极去除多晶硅层,产生第二栅极沟槽; 以及在所述第二栅极沟槽中的所述第二金属层上形成第二金属层和第二铝层。

    High Temperature Anneal for Aluminum Surface Protection
    4.
    发明申请
    High Temperature Anneal for Aluminum Surface Protection 有权
    高温退火铝表面保护

    公开(公告)号:US20110156166A1

    公开(公告)日:2011-06-30

    申请号:US12651017

    申请日:2009-12-31

    IPC分类号: H01L27/088 H01L21/8234

    摘要: The present disclosure also provides another embodiment of a method for making metal gate stacks. The method includes forming a first dummy gate and a second dummy gate on a substrate; removing a polysilicon layer from the first dummy gate, resulting in a first gate trench; forming a first metal layer and a first aluminum layer in the first gate trench; applying a chemical mechanical polishing (CMP) process to the substrate; performing an annealing process to the first aluminum layer using a nitrogen and oxygen containing gas, forming an interfacial layer of aluminum, nitrogen and oxygen on the first aluminum layer; thereafter removing the polysilicon layer from the second dummy gate, resulting in a second gate trench; and forming a second metal layer and a second aluminum layer on the second metal layer in the second gate trench.

    摘要翻译: 本公开还提供了制造金属栅极叠层的方法的另一个实施例。 该方法包括在衬底上形成第一虚拟栅极和第二虚拟栅极; 从第一伪栅极去除多晶硅层,产生第一栅极沟槽; 在所述第一栅极沟槽中形成第一金属层和第一铝层; 对基材进行化学机械抛光(CMP)工艺; 使用含氮和氧的气体对所述第一铝层进行退火处理,在所述第一铝层上形成铝,氮和氧的界面层; 然后从第二虚拟栅极去除多晶硅层,产生第二栅极沟槽; 以及在所述第二栅极沟槽中的所述第二金属层上形成第二金属层和第二铝层。

    Method of fabricating high-k metal gate devices
    6.
    发明授权
    Method of fabricating high-k metal gate devices 有权
    制造高k金属栅极器件的方法

    公开(公告)号:US07776757B2

    公开(公告)日:2010-08-17

    申请号:US12354394

    申请日:2009-01-15

    IPC分类号: H01L21/302

    摘要: The present disclosure provides a method for fabricating a semiconductor device. The method includes providing a semiconductor substrate having a first region and a second region, forming a high-k dielectric layer over the semiconductor substrate, forming a first metal layer and a first silicon layer by an in-situ deposition process, patterning the first silicon layer to remove a portion overlying the second region, patterning the first metal layer using the patterned first silicon layer as a mask, and removing the patterned first silicon layer including applying a solution. The solution includes a first component having an [F-] concentration greater than 0.01M, a second component configured to adjust a pH of the solution from about 4.3 to about 6.7, and a third component configured to adjust a potential of the solution to be greater than −1.4 volts.

    摘要翻译: 本公开提供了一种用于制造半导体器件的方法。 该方法包括提供具有第一区域和第二区域的半导体衬底,在半导体衬底上形成高k电介质层,通过原位沉积工艺形成第一金属层和第一硅层,图案化第一硅 以去除覆盖在第二区域上的部分,使用图案化的第一硅层作为掩模来图案化第一金属层,以及去除图案化的第一硅层,包括施加溶液。 该溶液包括具有大于0.01M的[F-]浓度的第一组分,构成为将溶液的pH调节至约4.3至约6.7的第二组分,以及构成为将溶液的电位调节为 大于-1.4伏。

    Integration of bottom-up metal film deposition
    8.
    发明授权
    Integration of bottom-up metal film deposition 有权
    整合自下而上的金属膜沉积

    公开(公告)号:US08088685B2

    公开(公告)日:2012-01-03

    申请号:US12702525

    申请日:2010-02-09

    IPC分类号: H01L21/4763

    摘要: The described embodiments of methods of bottom-up metal deposition to fill interconnect and replacement gate structures enable gap-filling of fine features with high aspect ratios without voids and provide metal films with good film quality. In-situ pretreatment of metal film(s) deposited by gas cluster ion beam (GCIB) allows removal of surface impurities and surface oxide to improve adhesion between an underlying layer with the deposited metal film(s). Metal films deposited by photo-induced chemical vapor deposition (PI-CVD) using high energy of low-frequency light source(s) at relatively low temperature exhibit liquid-like nature, which allows the metal films to fill fine feature from bottom up. The post deposition annealing of metal film(s) deposited by PI-CVD densifies the metal film(s) and removes residual gaseous species from the metal film(s). For advanced manufacturing, such bottom-up metal deposition methods address the challenges of gap-filling of fine features with high aspect ratios.

    摘要翻译: 自下而上金属沉积以填充互连和替代栅极结构的方法的所述实施例使得能够在没有空隙的情况下间隙填充具有高纵横比的精细特征,并提供具有良好膜质量的金属膜。 通过气体簇离子束(GCIB)沉积的金属膜的原位预处理允许去除表面杂质和表面氧化物以改善下层与沉积的金属膜之间的粘附。 通过使用高能量的低频光源在较低温度下通过光致化学气相沉积(PI-CVD)沉积的金属膜表现出液体性质,这允许金属膜从下向上填充精细特征。 通过PI-CVD沉积的金属膜的后沉积退火致密化金属膜并从金属膜去除残留的气态物质。 对于先进的制造,这种自下而上的金属沉积方法解决了具有高纵横比的精细特征的间隙填充的挑战。

    INTEGRATION OF BOTTOM-UP METAL FILM DEPOSITION
    9.
    发明申请
    INTEGRATION OF BOTTOM-UP METAL FILM DEPOSITION 有权
    底部金属膜沉积的整合

    公开(公告)号:US20110195570A1

    公开(公告)日:2011-08-11

    申请号:US12702525

    申请日:2010-02-09

    IPC分类号: H01L21/3205

    摘要: The described embodiments of methods of bottom-up metal deposition to fill interconnect and replacement gate structures enable gap-filling of fine features with high aspect ratios without voids and provide metal films with good film quality. In-situ pretreatment of metal film(s) deposited by gas cluster ion beam (GCIB) allows removal of surface impurities and surface oxide to improve adhesion between an underlying layer with the deposited metal film(s). Metal films deposited by photo-induced chemical vapor deposition (PI-CVD) using high energy of low-frequency light source(s) at relatively low temperature exhibit liquid-like nature, which allows the metal films to fill fine feature from bottom up. The post deposition annealing of metal film(s) deposited by PI-CVD densifies the metal film(s) and removes residual gaseous species from the metal film(s). For advanced manufacturing, such bottom-up metal deposition methods address the challenges of gap-filling of fine features with high aspect ratios.

    摘要翻译: 自下而上金属沉积以填充互连和替代栅极结构的方法的所述实施例使得能够在没有空隙的情况下间隙填充具有高纵横比的精细特征,并提供具有良好膜质量的金属膜。 通过气体簇离子束(GCIB)沉积的金属膜的原位预处理允许去除表面杂质和表面氧化物以改善下层与沉积的金属膜之间的粘附。 通过使用高能量的低频光源在较低温度下通过光致化学气相沉积(PI-CVD)沉积的金属膜表现出液体性质,这允许金属膜从下向上填充精细特征。 通过PI-CVD沉积的金属膜的后沉积退火致密化金属膜并从金属膜去除残余的气态物质。 对于先进的制造,这种自下而上的金属沉积方法解决了具有高纵横比的精细特征的间隙填充的挑战。

    N/P METAL CRYSTAL ORIENTATION FOR HIGH-K METAL GATE Vt MODULATION
    10.
    发明申请
    N/P METAL CRYSTAL ORIENTATION FOR HIGH-K METAL GATE Vt MODULATION 有权
    用于高K金属门Vt调节的N / P金属晶体取向

    公开(公告)号:US20100140716A1

    公开(公告)日:2010-06-10

    申请号:US12332057

    申请日:2008-12-10

    IPC分类号: H01L27/092 H01L21/8238

    摘要: The present disclosure provides an integrated circuit. The integrated circuit includes a semiconductor substrate having a first region and a second region; a first gate stack of an n-type field-effect transistor (FET) in the first region; and a second gate stack of a p-type FET in the second region. The first gate stack includes a high k dielectric layer on the semiconductor substrate, a first crystalline metal layer in a first orientation on the high k dielectric layer, and a conductive material layer on the first crystalline metal layer. The second gate stack includes the high k dielectric layer on the semiconductor substrate, a second crystalline metal layer in a second orientation on the high k dielectric layer, and the conductive material layer on the second crystalline metal layer.

    摘要翻译: 本发明提供集成电路。 集成电路包括具有第一区域和第二区域的半导体衬底; 在所述第一区域中的n型场效应晶体管(FET)的第一栅极堆叠; 以及第二区域中的p型FET的第二栅极堆叠。 第一栅极堆叠包括在半导体衬底上的高k电介质层,在高k电介质层上具有第一取向的第一晶体金属层和第一晶体金属层上的导电材料层。 第二栅极堆叠包括半导体衬底上的高k电介质层,在高k电介质层上具有第二取向的第二晶体金属层和第二晶体金属层上的导电材料层。