TECHNIQUE FOR ENHANCING STRESS TRANSFER INTO CHANNEL REGIONS OF NMOS AND PMOS TRANSISTORS
    71.
    发明申请
    TECHNIQUE FOR ENHANCING STRESS TRANSFER INTO CHANNEL REGIONS OF NMOS AND PMOS TRANSISTORS 有权
    用于增强NMOS和PMOS晶体管通道区域应力传递的技术

    公开(公告)号:US20070122966A1

    公开(公告)日:2007-05-31

    申请号:US11468450

    申请日:2006-08-30

    IPC分类号: H01L21/8238 H01L21/44

    摘要: A method and a semiconductor device are provided in which respective contact layers having a specific intrinsic stress may be directly formed on respective metal silicide regions without undue metal silicide degradation during an etch process for removing an unwanted portion of an initially deposited contact layer. Moreover, due to the inventive concept, the strain-inducing contact layers may be formed directly on the respective substantially L-shaped spacer elements, thereby enhancing even more the stress transfer mechanism.

    摘要翻译: 提供了一种方法和半导体器件,其中具有特定固有应力的各个接触层可以直接形成在各自的金属硅化物区域上,而在用于去除最初沉积的接触层的不希望的部分的蚀刻工艺期间不会有不适当的金属硅化物降解。 此外,由于本发明构思,应变感应接触层可以直接形成在相应的大致L形间隔元件上,从而进一步增强应力传递机构。

    Transistor having an asymmetric source/drain and halo implantation region and a method of forming the same
    73.
    发明申请
    Transistor having an asymmetric source/drain and halo implantation region and a method of forming the same 有权
    具有不对称源极/漏极和晕圈注入区的晶体管及其形成方法

    公开(公告)号:US20060043430A1

    公开(公告)日:2006-03-02

    申请号:US11122740

    申请日:2005-05-05

    IPC分类号: H01L29/76

    摘要: By providing an asymmetric design of a halo region and extension regions of a field effect transistor, the transistor performance may significantly be enhanced for a given basic transistor architecture. In particular, a large overlap area may be created at the source side with a steep concentration gradient of the PN junction due to the provision of the halo region, whereas the drain overlap may be significantly reduced or may even completely be avoided, wherein a moderately reduced concentration gradient may further enhance the transistor performance.

    摘要翻译: 通过提供场效应晶体管的光晕区域和延伸区域的非对称设计,对于给定的基本晶体管架构,晶体管性能可以显着增强。 特别地,由于提供了卤素区域,可能在源极侧产生具有PN结的陡峭浓度梯度的大的重叠区域,而可以显着地减少或甚至可以完全避免漏极重叠,其中适度地 降低的浓度梯度可进一步提高晶体管的性能。

    Using high-k dielectrics as highly selective etch stop materials in semiconductor devices
    78.
    发明授权
    Using high-k dielectrics as highly selective etch stop materials in semiconductor devices 有权
    使用高k电介质作为半导体器件中的高选择性蚀刻停止材料

    公开(公告)号:US08198166B2

    公开(公告)日:2012-06-12

    申请号:US12844135

    申请日:2010-07-27

    IPC分类号: H01L21/00

    摘要: A spacer structure in sophisticated semiconductor devices is formed on the basis of a high-k dielectric material, which provides superior etch resistivity compared to conventionally used silicon dioxide liners. Consequently, a reduced thickness of the etch stop material may nevertheless provide superior etch resistivity, thereby reducing negative effects, such as dopant loss in the drain and source extension regions, creating a pronounced surface topography and the like, as are typically associated with conventional spacer material systems.

    摘要翻译: 在高k电介质材料的基础上形成复杂半导体器件中的间隔结构,其与传统使用的二氧化硅衬垫相比提供了优异的蚀刻电阻率。 因此,蚀刻停止材料的厚度减小可以提供优异的蚀刻电阻率,从而减少负面影响,例如漏极和源极延伸区域中的掺杂剂损失,产生显着的表面形貌等,如通常与常规间隔物相关联 材料系统