Sidewall semiconductor transistors
    82.
    发明授权
    Sidewall semiconductor transistors 有权
    侧壁半导体晶体管

    公开(公告)号:US07397081B2

    公开(公告)日:2008-07-08

    申请号:US10905041

    申请日:2004-12-13

    IPC分类号: H01L29/94

    摘要: A novel transistor structure and method for fabricating the same. The transistor structure comprises (a) a substrate and (b) a semiconductor region, a gate dielectric region, and a gate region on the substrate, wherein the gate dielectric region is sandwiched between the semiconductor region and the gate region, wherein the semiconductor region is electrically insulated from the gate region by the gate dielectric region, wherein the semiconductor region comprises a channel region and first and second source/drain regions, wherein the channel region is sandwiched between the first and second source/drain regions, wherein the first and second source/drain regions are aligned with the gate region, wherein the channel region and the gate dielectric region (i) share an interface surface which is essentially perpendicular to a top surface of the substrate, and (ii) do not share any interface surface that is essentially parallel to a top surface of the substrate.

    摘要翻译: 一种新颖的晶体管结构及其制造方法。 晶体管结构包括(a)衬底和(b)衬底上的半导体区域,栅极介电区域和栅极区域,其中栅极电介质区域夹在半导体区域和栅极区域之间,其中半导体区域 通过所述栅极电介质区域与所述栅极区域电绝缘,其中所述半导体区域包括沟道区域和第一和第二源极/漏极区域,其中所述沟道区域夹在所述第一和第二源极/漏极区域之间,其中所述第一和/ 第二源极/漏极区域与栅极区域对准,其中沟道区域和栅极电介质区域(i)共享基本上垂直于衬底顶表面的界面,以及(ii)不共享任何界面表面 其基本上平行于衬底的顶表面。

    Stress inducing spacers
    83.
    发明授权
    Stress inducing spacers 有权
    应力诱导垫片

    公开(公告)号:US07374987B2

    公开(公告)日:2008-05-20

    申请号:US10935136

    申请日:2004-09-07

    IPC分类号: H01L21/336

    摘要: A substrate under tension and/or compression improves performance of devices fabricated therein. Tension and/or compression can be imposed on a substrate through selection of appropriate gate sidewall spacer material disposed above a device channel region wherein the spacers are formed adjacent both the gate and the substrate and impose forces on adjacent substrate areas. Another embodiment comprises compressive stresses imposed in the plane of the channel using SOI sidewall spacers made of polysilicon that is expanded by oxidation. The substrate areas under compression or tension exhibit charge mobility characteristics different from those of a non-stressed substrate. By controllably varying these stresses within NFET and PFET devices formed on a substrate, improvements in IC performance have been demonstrated.

    摘要翻译: 在张力和/或压缩下的基底改善了在其中制造的器件的性能。 可以通过选择设置在器件沟道区域上方的适当的栅极侧壁间隔物施加张力和/或压缩,其中间隔物邻近栅极和衬底形成,并且在邻近衬底区域上施加力。 另一个实施例包括使用通过氧化扩展的多晶硅制成的SOI侧壁间隔施加在沟道的平面中的压应力。 在压缩或张力下的衬底区域表现出不同于非应力衬底的电荷迁移率特性。 通过可控地改变在衬底上形成的NFET和PFET器件内的这些应力,已经证明了IC性能的提高。

    Dual stressed SOI substrates
    84.
    发明授权
    Dual stressed SOI substrates 有权
    双重应力SOI衬底

    公开(公告)号:US07312134B2

    公开(公告)日:2007-12-25

    申请号:US11741441

    申请日:2007-04-27

    IPC分类号: H01L21/84

    摘要: The present invention provides a strained-Si structure, in which the nFET regions of the structure are strained in tension and the pFET regions of the structure are strained in compression. Broadly the strained-Si structure comprises a substrate; a first layered stack atop the substrate, the first layered stack comprising a compressive dielectric layer atop the substrate and a first semiconducting layer atop the compressive dielectric layer, wherein the compressive dielectric layer transfers tensile stresses to the first semiconducting layer; and a second layered stack atop the substrate, the second layered stack comprising an tensile dielectric layer atop the substrate and a second semiconducting layer atop the tensile dielectric layer, wherein the tensile dielectric layer transfers compressive stresses to the second semiconducting layer. The tensile dielectric layer and the compressive dielectric layer preferably comprise nitride, such as Si3N4.

    摘要翻译: 本发明提供一种应变Si结构,其中该结构的nFET区域被拉紧并且该结构的pFET区域被压缩而变形。 广义上,应变Si结构包括基底; 所述第一层叠堆叠包括位于所述衬底顶部的压缩介电层和位于所述压缩介电层顶部的第一半导体层,其中所述压缩介电层将拉伸应力传递到所述第一半导体层; 以及在所述衬底顶部的第二层叠堆叠,所述第二层叠堆叠包括位于所述衬底顶部的拉伸介电层和位于所述拉伸介电层顶部的第二半导体层,其中所述拉伸介电层将压缩应力传递到所述第二半导体层。 拉伸介电层和压电介电层优选包括氮化物,例如Si 3 N 4 N 4。

    NFETs using gate induced stress modulation
    86.
    发明授权
    NFETs using gate induced stress modulation 失效
    使用栅极诱导应力调制的NFET

    公开(公告)号:US07144767B2

    公开(公告)日:2006-12-05

    申请号:US10667601

    申请日:2003-09-23

    IPC分类号: H01L21/8249

    摘要: A method for manufacturing an integrated circuit comprising a plurality of semiconductor devices including an n-type field effect transistor and a p-type field effect transistor by covering the p-type field effect transistor with a mask, and oxidizing a portion of a gate polysilicon of the n-type field effect transistor, such that tensile mechanical stresses are formed within a channel of the n-type field effect transistor.

    摘要翻译: 一种用于制造集成电路的方法,该集成电路包括通过用掩模覆盖p型场效应晶体管的多个半导体器件,包括n型场效应晶体管和p型场效应晶体管,并且氧化栅极多晶硅的一部分 的n型场效应晶体管,使得在n型场效应晶体管的沟道内形成拉伸机械应力。