Transistor with embedded Si/Ge material having enhanced across-substrate uniformity
    73.
    发明授权
    Transistor with embedded Si/Ge material having enhanced across-substrate uniformity 有权
    具有嵌入式Si / Ge材料的晶体管具有增强的跨基板均匀性

    公开(公告)号:US08334569B2

    公开(公告)日:2012-12-18

    申请号:US13454177

    申请日:2012-04-24

    IPC分类号: H01L29/66

    摘要: In sophisticated semiconductor devices, a strain-inducing semiconductor alloy may be positioned close to the channel region by forming cavities on the basis of a wet chemical etch process, which may have an anisotropic etch behavior with respect to different crystallographic orientations. In one embodiment, TMAH may be used which exhibits, in addition to the anisotropic etch behavior, a high etch selectivity with respect to silicon dioxide, thereby enabling extremely thin etch stop layers which additionally provide the possibility of further reducing the offset from the channel region while not unduly contributing to overall process variability.

    摘要翻译: 在复杂的半导体器件中,应变诱导半导体合金可以通过基于湿化学蚀刻工艺形成空腔来定位,靠近沟道区域,其可以相对于不同的晶体取向具有各向异性蚀刻行为。 在一个实施方案中,可以使用TMAH,除了各向异性蚀刻行为之外,还显示出相对于二氧化硅的高蚀刻选择性,从而使极细的蚀刻停止层可以进一步减少与沟道区的偏移 同时不会对整体过程变化造成过分的不利影响。

    Transistor with embedded SI/GE material having enhanced across-substrate uniformity
    75.
    发明授权
    Transistor with embedded SI/GE material having enhanced across-substrate uniformity 有权
    具有嵌入式SI / GE材料的晶体管具有增强的跨基板均匀性

    公开(公告)号:US08183100B2

    公开(公告)日:2012-05-22

    申请号:US12562437

    申请日:2009-09-18

    IPC分类号: H01L21/84

    摘要: In sophisticated semiconductor devices, a strain-inducing semiconductor alloy may be positioned close to the channel region by forming cavities on the basis of a wet chemical etch process, which may have an anisotropic etch behavior with respect to different crystallographic orientations. In one embodiment, TMAH may be used which exhibits, in addition to the anisotropic etch behavior, a high etch selectivity with respect to silicon dioxide, thereby enabling extremely thin etch stop layers which additionally provide the possibility of further reducing the offset from the channel region while not unduly contributing to overall process variability.

    摘要翻译: 在复杂的半导体器件中,应变诱导半导体合金可以通过基于湿化学蚀刻工艺形成空腔来定位,靠近沟道区域,其可以相对于不同的晶体取向具有各向异性蚀刻行为。 在一个实施方案中,可以使用TMAH,除了各向异性蚀刻行为之外,还显示出相对于二氧化硅的高蚀刻选择性,从而使极细的蚀刻停止层可以进一步减少与沟道区的偏移 同时不会对整体过程变化造成过分的不利影响。

    ADJUSTMENT OF TRANSISTOR CHARACTERISTICS BASED ON A LATE WELL IMPLANTATION
    78.
    发明申请
    ADJUSTMENT OF TRANSISTOR CHARACTERISTICS BASED ON A LATE WELL IMPLANTATION 审中-公开
    基于较晚的植被的晶体管特性的调整

    公开(公告)号:US20110186937A1

    公开(公告)日:2011-08-04

    申请号:US12914343

    申请日:2010-10-28

    摘要: A self-aligned well implantation process may be performed so as to adjust threshold voltage and/or body resistance of transistors. To this end, after removing a placeholder material of gate electrode structures, the implantation process may be performed on the basis of appropriate process parameters to obtain the desired transistor characteristics. Thereafter, any appropriate electrode metal may be filled in, thereby providing gate electrode structures having superior performance. For example, high-k metal gate electrode structures may be formed on the basis of a replacement gate approach, while the additional late well implantation may provide a high degree of flexibility in providing different transistor versions of the same basic configuration.

    摘要翻译: 可以执行自对准阱注入工艺,以便调整晶体管的阈值电压和/或体电阻。 为此,在去除栅电极结构的占位符材料之后,可以基于适当的工艺参数进行注入工艺以获得所需的晶体管特性。 此后,可以填充任何合适的电极金属,从而提供具有优异性能的栅电极结构。 例如,可以在替代栅极方法的基础上形成高k金属栅电极结构,而附加的后期阱注入可以提供相同基本配置的不同晶体管版本的高度灵活性。

    SOI device having a substrate diode with process tolerant configuration and method of forming the SOI device
    79.
    发明授权
    SOI device having a substrate diode with process tolerant configuration and method of forming the SOI device 有权
    SOI器件具有具有工艺容限配置的衬底二极管和形成SOI器件的方法

    公开(公告)号:US07943442B2

    公开(公告)日:2011-05-17

    申请号:US11862296

    申请日:2007-09-27

    IPC分类号: H01L21/84

    摘要: A substrate diode for an SOI device is formed in accordance with an appropriately designed manufacturing flow, wherein transistor performance enhancing mechanisms may be implemented substantially without affecting the diode characteristics. In one aspect, respective openings for the substrate diode may be formed after the formation of a corresponding sidewall spacer structure used for defining the drain and source regions, thereby obtaining a significant lateral distribution of the dopants in the diode areas, which may therefore provide sufficient process margins during a subsequent silicidation sequence on the basis of a removal of the spacers in the transistor devices. In a further aspect, in addition to or alternatively, an offset spacer may be formed substantially without affecting the configuration of respective transistor devices.

    摘要翻译: 根据适当设计的制造流程形成用于SOI器件的衬底二极管,其中可以基本上实现晶体管性能增强机制而不影响二极管特性。 在一个方面,用于衬底二极管的相应开口可以在形成用于限定漏极和源极区域的相应的侧壁间隔结构形成之后形成,从而获得掺杂剂在二极管区域中的显着的横向分布,这可能因此提供足够的 基于去除晶体管器件中的间隔物,在随后的硅化序列期间的工艺余量。 在另一方面,除了或者可选地,可以基本上形成偏移间隔物而不影响各个晶体管器件的配置。