SOI device having a substrate diode with process tolerant configuration and method of forming the SOI device
    23.
    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:US08377761B2

    公开(公告)日:2013-02-19

    申请号:US13081575

    申请日:2011-04-07

    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。

    Strain transformation in biaxially strained SOI substrates for performance enhancement of P-channel and N-channel transistors
    24.
    发明授权
    Strain transformation in biaxially strained SOI substrates for performance enhancement of P-channel and N-channel transistors 有权
    双向应变SOI衬底中的应变变换用于P沟道和N沟道晶体管的性能增强

    公开(公告)号:US08062952B2

    公开(公告)日:2011-11-22

    申请号:US12784819

    申请日:2010-05-21

    IPC分类号: H01L21/30

    摘要: In advanced SOI devices, a high tensile strain component may be achieved on the basis of a globally strained semiconductor layer, while at the same time a certain compressive strain may be induced in P-channel transistors by appropriately selecting a height-to-length aspect ratio of the corresponding active regions. It has been recognized that the finally obtained strain distribution in the active regions is strongly dependent on the aspect ratio of the active regions. Thus, by selecting a moderately low height-to-length aspect ratio for N-channel transistors, a significant fraction of the initial tensile strain component may be preserved. On the other hand, a moderately high height-to-length aspect ratio for the P-channel transistor may result in a compressive strain component in a central surface region of the active region.

    摘要翻译: 在先进的SOI器件中,可以在全局应变半导体层的基础上实现高拉伸应变分量,同时通过适当地选择高度 - 长度方面,可以在P沟道晶体管中产生一定的压缩应变 相应活性区的比例。 已经认识到,有效区域中最终获得的应变分布强烈地取决于有源区的纵横比。 因此,通过为N沟道晶体管选择中等的高度 - 长度长宽比,可以保留初始拉伸应变分量的很大一部分。 另一方面,用于P沟道晶体管的中等高度的长宽比可能导致有源区的中心表面区域中的压缩应变分量。

    METHOD OF FORMING A FIELD EFFECT TRANSISTOR
    28.
    发明申请
    METHOD OF FORMING A FIELD EFFECT TRANSISTOR 有权
    形成场效应晶体管的方法

    公开(公告)号:US20100181619A1

    公开(公告)日:2010-07-22

    申请号:US12752487

    申请日:2010-04-01

    IPC分类号: H01L29/786 H01L21/336

    摘要: A method of forming a field effect transistor comprises providing a substrate comprising a biaxially strained layer of a semiconductor material. A gate electrode is formed on the biaxially strained layer of semiconductor material. A raised source region and a raised drain region are formed adjacent the gate electrode. Ions of a dopant material are implanted into the raised source region and the raised drain region to form an extended source region and an extended drain region. Moreover, in methods of forming a field effect transistor according to embodiments of the present invention, a gate electrode can be formed in a recess of a layer of semiconductor material. Thus, a field effect transistor wherein a source side channel contact region and a drain side channel contact region located adjacent a channel region are subject to biaxial strain can be obtained.

    摘要翻译: 形成场效应晶体管的方法包括提供包括半导体材料的双轴应变层的衬底。 在半导体材料的双轴应变层上形成栅电极。 在栅电极附近形成凸起的源区和升高的漏极区。 将掺杂剂材料的离子注入到凸起的源极区域和隆起的漏极区域中,以形成扩展的源极区域和延伸的漏极区域。 此外,在形成根据本发明的实施例的场效应晶体管的方法中,可以在半导体材料层的凹部中形成栅电极。 因此,可以获得其中位于沟道区附近的源极侧沟道接触区域和漏极侧沟道接触区域受到双轴应变的场效应晶体管。