DUAL STRESSED SOI SUBSTRATES
    3.
    发明公开
    DUAL STRESSED SOI SUBSTRATES 有权
    双责硅绝缘体上

    公开(公告)号:EP1825509A4

    公开(公告)日:2009-04-15

    申请号:EP05853786

    申请日:2005-12-13

    Applicant: IBM

    CPC classification number: H01L21/84 H01L27/1203 H01L29/7843 Y10S438/938

    Abstract: 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.

    STRUCTURE AND METHOD TO PRESERVE STI DURING ETCHING
    5.
    发明申请
    STRUCTURE AND METHOD TO PRESERVE STI DURING ETCHING 审中-公开
    在蚀刻期间保留STI的结构和方法

    公开(公告)号:WO02095819A2

    公开(公告)日:2002-11-28

    申请号:PCT/US0216351

    申请日:2002-05-23

    Applicant: IBM

    Abstract: Disclosed is a method of protecting a semiconductor shallow trench isolation (STI) oxide from etching, the method comprising lowering, if necessary, the upper suface of said STI oxide to a level below that of adjacent silicon active areas, depositing a nitride liner upon said STI oxide and adjacent silicon active areas in a manner effective in defining a depression above said STI oxide, filling said depression with a protective film, and removing said nitride layer from said adjacent active areas.

    Abstract translation: 公开了一种保护半导体浅沟槽隔离(STI)氧化物免受蚀刻的方法,所述方法包括如果需要,将所述STI氧化物的上表面降低至低于相邻硅有源区的上表面,将氮化物衬垫沉积在所述 STI氧化物和相邻的硅有源区,以有效地限定所述STI氧化物上方的凹陷的方式,用保护膜填充所述凹陷,以及从所述相邻的活性区域移除所述氮化物层。

    DUAL STRESSED SOI SUBSTRATES
    6.
    发明申请
    DUAL STRESSED SOI SUBSTRATES 审中-公开
    双应力SOI衬底

    公开(公告)号:WO2006065759A3

    公开(公告)日:2007-06-14

    申请号:PCT/US2005044957

    申请日:2005-12-13

    CPC classification number: H01L21/84 H01L27/1203 H01L29/7843 Y10S438/938

    Abstract: 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 Si 3 N 4 .

    Abstract translation: 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电介质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。

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