Method of making strained channel CMOS transistors having lattice-mismatched epitaxial
    2.
    发明申请
    Method of making strained channel CMOS transistors having lattice-mismatched epitaxial 有权
    制造具有晶格失配外延的应变通道CMOS晶体管的方法

    公开(公告)号:US20050148133A1

    公开(公告)日:2005-07-07

    申请号:US11052675

    申请日:2005-02-07

    摘要: A method is provided in which an n-type field effect transistor (NFET) and a p-type field effect transistor (PFET) each have a channel region disposed in a first single-crystal semiconductor region having a first composition. A stress is applied at a first magnitude to a channel region of the PFET but not at that magnitude to the channel region of the NFET. The stress is applied by a single-crystal semiconductor layer having a second composition such that the single-crystal semiconductor layer is lattice-mismatched to the first region. The semiconductor layer is formed over the source and drain regions and optionally over the extension regions of the PFET at a first distance from the channel region of the PFET and is formed over the source and drain regions of the NFET at a second, greater distance from the channel region of the NFET, or the semiconductor layer having the second composition is not formed at all in the NFET.

    摘要翻译: 提供一种方法,其中n型场效应晶体管(NFET)和p型场效应晶体管(PFET)各自具有设置在具有第一组成的第一单晶半导体区域中的沟道区。 应力以第一幅度施加到PFET的沟道区,但不以该尺寸施加到NFET的沟道区。 应力由具有第二组成的单晶半导体层施加使得单晶半导体层与第一区域晶格失配。 半导体层形成在源极和漏极区域上,并且任选地在距离PFET的沟道区第一距离处的PFET的延伸区域上方形成,并且形成在NFET的源极和漏极区域之上,距离 NFET的沟道区域或具有第二组成的半导体层完全不形成在NFET中。

    Reduction of boron diffusivity in pFETs
    6.
    发明授权
    Reduction of boron diffusivity in pFETs 失效
    降低pFET中的硼扩散率

    公开(公告)号:US07737014B2

    公开(公告)日:2010-06-15

    申请号:US10596249

    申请日:2003-12-08

    IPC分类号: H01L21/22 H01L21/38

    摘要: A stressed film applied across a boundary defined by a structure or a body (e.g. substrate or layer) of semiconductor material provides a change from tensile to compressive stress in the semiconductor material proximate to the boundary and is used to modify boron diffusion rate during annealing and thus modify final boron concentrations. In the case of a field effect transistor, the gate structure may be formed with or without sidewalls to regulate the location of the boundary relative to source/drain, extension and/or halo implants. Different boron diffusion rates can be produced in the lateral and vertical directions and diffusion rates comparable to arsenic can be achieved. Reduction of junction capacitance of both nFETs and pFETs can be achieved simultaneously with the same process steps.

    摘要翻译: 应用于由半导体材料的结构或主体(例如衬底或层)限定的边界处的应力膜提供了靠近边界的半导体材料中的拉应力和压缩应力的变化,并用于在退火过程中修饰硼扩散速率, 从而改变最终的硼浓度。 在场效应晶体管的情况下,栅极结构可以形成有或不具有侧壁以调节边界相对于源极/漏极,延伸和/或晕轮植入物的位置。 可以在横向和垂直方向上产生不同的硼扩散速率,并且可以实现与砷相当的扩散速率。 可以通过相同的工艺步骤同时实现nFET和pFET的结电容的减小。

    Device having enhanced stress state and related methods
    7.
    发明授权
    Device having enhanced stress state and related methods 有权
    具有增强的应力状态和相关方法的装置

    公开(公告)号:US07732270B2

    公开(公告)日:2010-06-08

    申请号:US11972964

    申请日:2008-01-11

    IPC分类号: H01L21/8238

    摘要: The present invention provides a semiconductor device having dual nitride liners, which provide an increased transverse stress state for at least one FET and methods for the manufacture of such a device. A first aspect of the invention provides a method for use in the manufacture of a semiconductor device comprising the steps of applying a first silicon nitride liner to the device and applying a second silicon nitride liner adjacent the first silicon nitride liner, wherein at least one of the first and second silicon nitride liners induces a transverse stress in a silicon channel beneath at least one of the first and second silicon nitride liner.

    摘要翻译: 本发明提供一种具有双重氮化物衬垫的半导体器件,其为至少一个FET提供增加的横向应力状态以及用于制造这种器件的方法。 本发明的第一方面提供了一种用于制造半导体器件的方法,包括以下步骤:将第一氮化硅衬垫施加到器件上并施加与第一氮化硅衬垫相邻的第二氮化硅衬垫,其中至少一个 第一和第二氮化硅衬垫在第一和第二氮化硅衬里中的至少一个之下的硅沟道中引起横向应力。

    Reduction of boron diffusivity in pfets
    8.
    发明申请
    Reduction of boron diffusivity in pfets 失效
    降低pfets中的硼扩散率

    公开(公告)号:US20070093030A1

    公开(公告)日:2007-04-26

    申请号:US10596249

    申请日:2003-12-08

    摘要: A stressed film applied across a boundary defined by a structure or a body (e.g. substrate or layer) of semiconductor material provides a change from tensile to compressive stress in the semiconductor material proximate to the boundary and is used to modify boron diffusion rate during annealing and thus modify final boron concentrations. In the case of a field effect transistor, the gate structure may be formed with or without sidewalls to regulate the location of the boundary relative to source/drain, extension and/or halo implants. Different boron diffusion rates can be produced in the lateral and vertical directions and diffusion rates comparable to arsenic can be achieved. Reduction of junction capacitance of both nFETs and pFETs can be achieved simultaneously with the same process steps.

    摘要翻译: 应用于由半导体材料的结构或主体(例如衬底或层)限定的边界处的应力膜提供了靠近边界的半导体材料中的拉应力和压缩应力的变化,并用于在退火过程中修饰硼扩散速率, 从而改变最终的硼浓度。 在场效应晶体管的情况下,栅极结构可以形成有或不具有侧壁以调节边界相对于源极/漏极,延伸和/或晕轮植入物的位置。 可以在横向和垂直方向上产生不同的硼扩散速率,并且可以实现与砷相当的扩散速率。 可以通过相同的工艺步骤同时实现nFET和pFET的结电容的减小。

    DEVICE HAVING ENHANCED STRESS STATE AND RELATED METHODS
    9.
    发明申请
    DEVICE HAVING ENHANCED STRESS STATE AND RELATED METHODS 有权
    具有增强应力状态的装置及相关方法

    公开(公告)号:US20060128091A1

    公开(公告)日:2006-06-15

    申请号:US10905025

    申请日:2004-12-10

    IPC分类号: H01L21/8238

    摘要: The present invention provides a semiconductor device having dual nitride liners, which provide an increased transverse stress state for at least one FET and methods for the manufacture of such a device. A first aspect of the invention provides a method for use in the manufacture of a semiconductor device comprising the steps of applying a first silicon nitride liner to the device and applying a second silicon nitride liner adjacent the first silicon nitride liner, wherein at least one of the first and second silicon nitride liners induces a transverse stress in a silicon channel beneath at least one of the first and second silicon nitride liner.

    摘要翻译: 本发明提供一种具有双重氮化物衬垫的半导体器件,其为至少一个FET提供增加的横向应力状态以及用于制造这种器件的方法。 本发明的第一方面提供了一种用于制造半导体器件的方法,包括以下步骤:将第一氮化硅衬垫施加到器件上并施加与第一氮化硅衬垫相邻的第二氮化硅衬垫,其中至少一个 第一和第二氮化硅衬垫在第一和第二氮化硅衬里中的至少一个之下的硅沟道中引起横向应力。

    DEVICE HAVING ENHANCED STRESS STATE AND RELATED METHODS
    10.
    发明申请
    DEVICE HAVING ENHANCED STRESS STATE AND RELATED METHODS 有权
    具有增强应力状态的装置及相关方法

    公开(公告)号:US20080108228A1

    公开(公告)日:2008-05-08

    申请号:US11972964

    申请日:2008-01-11

    IPC分类号: H01L21/31

    摘要: The present invention provides a semiconductor device having dual nitride liners, which provide an increased transverse stress state for at least one FET and methods for the manufacture of such a device. A first aspect of the invention provides a method for use in the manufacture of a semiconductor device comprising the steps of applying a first silicon nitride liner to the device and applying a second silicon nitride liner adjacent the first silicon nitride liner, wherein at least one of the first and second silicon nitride liners induces a transverse stress in a silicon channel beneath at least one of the first and second silicon nitride liner.

    摘要翻译: 本发明提供一种具有双重氮化物衬垫的半导体器件,其为至少一个FET提供增加的横向应力状态以及用于制造这种器件的方法。 本发明的第一方面提供了一种用于制造半导体器件的方法,包括以下步骤:将第一氮化硅衬垫施加到器件上并施加与第一氮化硅衬垫相邻的第二氮化硅衬垫,其中至少一个 第一和第二氮化硅衬垫在第一和第二氮化硅衬里中的至少一个之下的硅沟道中引起横向应力。