Enhancing transistor characteristics by a late deep implantation in combination with a diffusion-free anneal process
    6.
    发明授权
    Enhancing transistor characteristics by a late deep implantation in combination with a diffusion-free anneal process 有权
    通过与无扩散退火工艺结合的深深植入来增强晶体管特性

    公开(公告)号:US08288256B2

    公开(公告)日:2012-10-16

    申请号:US12023743

    申请日:2008-01-31

    IPC分类号: H01L21/425

    摘要: By combining an anneal process for adjusting the effective channel length and a substantially diffusion-free anneal process performed after a deep drain and source implantation, the vertical extension of the drain and source region may be increased substantially without affecting the previously adjusted channel length. In this manner, in SOI devices, the drain and source regions may extend down to the buried insulating layer, thereby reducing the parasitic capacitance, while the degree of dopant activation and thus series resistance in the extension regions may be improved. Furthermore, less critical process parameters during the anneal process for adjusting the channel length may provide the potential for reducing the lateral dimensions of the transistor devices.

    摘要翻译: 通过组合用于调节有效沟道长度的退火工艺和在深漏极和源极注入之后执行的基本上无扩散的退火工艺,可以基本上增加漏极和源极区域的垂直延伸,而不影响先前调节的沟道长度。 以这种方式,在SOI器件中,漏极和源极区域可以向下延伸到掩埋绝缘层,从而减小寄生电容,同时可以改善延伸区域中的掺杂剂激活程度和因此的串联电阻。 此外,在用于调整沟道长度的退火工艺期间较不重要的工艺参数可以为降低晶体管器件的横向尺寸提供潜力。

    Method of forming a metal silicide gate in a standard MOS process sequence
    9.
    发明授权
    Method of forming a metal silicide gate in a standard MOS process sequence 有权
    在标准MOS工艺序列中形成金属硅化物栅的方法

    公开(公告)号:US06821887B2

    公开(公告)日:2004-11-23

    申请号:US10391243

    申请日:2003-03-18

    IPC分类号: H01L21302

    摘要: The polysilicon gate electrode of a MOS transistor may be substantially completely converted into a metal silicide without sacrificing the drain and source junctions in that a thickness of the polysilicon layer, for forming the gate electrode, is targeted to be substantially converted into metal silicide in a subsequent silicidation process. The gate electrode, substantially comprised of metal silicide, offers high conductivity even at critical dimensions in the deep sub-micron range, while at the same time the effect of polysilicon gate depletion is significantly reduced. Manufacturing of the MOS transistor, having the substantially fully-converted metal silicide gate electrode, is essentially compatible with standard MOS process technology.

    摘要翻译: MOS晶体管的多晶硅栅电极可以基本上完​​全转变为金属硅化物,而不牺牲漏极和源极结,因为用于形成栅电极的多晶硅层的厚度被靶向为基本上转化为金属硅化物 随后的硅化工艺。 基本上由金属硅化物组成的栅极电极甚至在深亚微米范围内的临界尺寸下也提供高导电性,同时多晶硅栅极耗尽的效果显着降低。 具有基本上完全转换的金属硅化物栅电极的MOS晶体管的制造基本上与标准MOS工艺技术相兼容。

    Semiconductor device having an improved strained surface layer and method of forming a strained surface layer in a semiconductor device
    10.
    发明授权
    Semiconductor device having an improved strained surface layer and method of forming a strained surface layer in a semiconductor device 失效
    具有改进的应变表面层的半导体器件和在半导体器件中形成应变表面层的方法

    公开(公告)号:US06808970B2

    公开(公告)日:2004-10-26

    申请号:US10602583

    申请日:2003-06-24

    IPC分类号: H01L21338

    摘要: A manufacturing process for fabricating field effect transistors is disclosed comprising the generation of a strained surface layer on the surface of the substrate on which the transistor is to be fabricated. The strained surface layer is generated by implanting xenon and/or other heavy inert ions into the substrate. Implantation can be performed both after or prior to the gate oxide growth. The processing afterwards is carried out as in conventional MOS technologies. It is assumed that the strained surface layer improves the channel mobility of the transistor.

    摘要翻译: 公开了一种用于制造场效应晶体管的制造工艺,包括在其上制造晶体管的衬底的表面上产生应变表面层。 应变表面层是通过将氙和/或其它重的惰性离子注入衬底而产生的。 可以在栅极氧化物生长之后或之前进行植入。 之后的处理与传统的MOS技术一样进行。 假设应变表面层改善了晶体管的沟道迁移率。