Self-Aligned Fin Transistor Formed on a Bulk Substrate by Late Fin Etch
    73.
    发明申请
    Self-Aligned Fin Transistor Formed on a Bulk Substrate by Late Fin Etch 有权
    通过后鳍蚀刻在块状基底上形成自对准翅片晶体管

    公开(公告)号:US20120161238A1

    公开(公告)日:2012-06-28

    申请号:US13209057

    申请日:2011-08-12

    IPC分类号: H01L27/105 H01L21/336

    摘要: Non-planar transistors, such as FinFETs, may be formed in a bulk configuration in the context of a replacement gate approach, wherein the semiconductor fins are formed during the replacement gate sequence. To this end, in some illustrative embodiments, a buried etch mask may be formed in an early manufacturing stage on the basis of superior process conditions.

    摘要翻译: 在替代栅极方法的上下文中,非平面晶体管(例如FinFET)可以以体积形式形成,其中半导体鳍片在替换栅极序列期间形成。 为此,在一些说明性实施例中,可以在优良的工艺条件的基础上,在早期制造阶段中形成掩埋蚀刻掩模。

    Transistor with embedded SI/GE material having enhanced across-substrate uniformity
    74.
    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。

    Transistor With Embedded Strain-Inducing Material Formed in Diamond-Shaped Cavities Based on a Pre-Amorphization
    75.
    发明申请
    Transistor With Embedded Strain-Inducing Material Formed in Diamond-Shaped Cavities Based on a Pre-Amorphization 有权
    基于预非晶化的金刚石形成的嵌入式应变诱导材料的晶体管

    公开(公告)号:US20110294269A1

    公开(公告)日:2011-12-01

    申请号:US13113698

    申请日:2011-05-23

    IPC分类号: H01L21/336 H01L21/20

    摘要: When forming cavities in active regions of semiconductor devices in order to incorporate a strain\-inducing semiconductor material, superior uniformity may be achieved by using an implantation process so as to selectively modify the etch behavior of exposed portions of the active region. In this manner, the basic configuration of the cavities may be adjusted with a high degree of flexibility, while at the same time the dependence on pattern loading effect may be reduced. Consequently, a significantly reduced variability of transistor characteristics may be achieved.

    摘要翻译: 当在半导体器件的有源区域中形成空腔以引入应变引起的半导体材料时,可以通过使用注入工艺来实现优异的均匀性,以便选择性地改变有源区域的暴露部分的蚀刻行为。 以这种方式,可以以高度的灵活性来调节空腔的基本构造,同时可以降低对图案加载效果的依赖性。 因此,可以实现晶体管特性的显着降低的变化。

    Self-Aligned Multiple Gate Transistor Formed on a Bulk Substrate
    76.
    发明申请
    Self-Aligned Multiple Gate Transistor Formed on a Bulk Substrate 有权
    在大量衬底上形成的自对准多栅晶体管

    公开(公告)号:US20110291196A1

    公开(公告)日:2011-12-01

    申请号:US13017558

    申请日:2011-01-31

    IPC分类号: H01L29/78 H01L21/336

    CPC分类号: H01L29/785 H01L29/66795

    摘要: Three-dimensional transistors in a bulk configuration may be formed on the basis of gate openings or gate trenches provided in a mask material. Hence, self-aligned semiconductor fins may be efficiently patterned in the underlying active region in a portion defined by the gate opening, while other gate openings may be efficiently masked, in which planar transistors are to be provided. After patterning the semiconductor fins and adjusting the effective height thereof, the further processing may be continued on the basis of process techniques that may be commonly applied to the planar transistors and the three-dimensional transistors.

    摘要翻译: 可以基于设置在掩模材料中的栅极开口或栅极沟槽形成体构造的三维晶体管。 因此,可以在由栅极开口限定的部分中的底层有源区域中有效地图案化自对准半导体鳍片,同时可以有效地屏蔽其中的栅极开口,其中将提供平面晶体管。 在图案化半导体鳍片并调整其有效高度之后,可以基于通常应用于平面晶体管和三维晶体管的工艺技术来继续进一步的处理。