Transistor with a strained region and method of manufacture
    21.
    发明申请
    Transistor with a strained region and method of manufacture 有权
    具有应变区域的晶体管及其制造方法

    公开(公告)号:US20060081875A1

    公开(公告)日:2006-04-20

    申请号:US10967917

    申请日:2004-10-18

    摘要: A transistor structure comprises a channel region overlying a substrate region. The substrate region comprises a first semiconductor material with a first lattice constant. The channel region comprises a second semiconductor material with a second lattice constant. The source and drain regions are oppositely adjacent the channel region and the top portion of the source and drain regions comprise the first semiconductor material. A gate dielectric layer overlies the channel region and a gate electrode overlies the gate dielectric layer.

    摘要翻译: 晶体管结构包括覆盖衬底区域的沟道区域。 衬底区域包括具有第一晶格常数的第一半导体材料。 沟道区域包括具有第二晶格常数的第二半导体材料。 源极区和漏极区相对地邻近沟道区,并且源极和漏极区的顶部包括第一半导体材料。 栅极电介质层覆盖沟道区,栅电极覆盖在栅介质层上。

    Strain balanced structure with a tensile strained silicon channel and a compressive strained silicon-germanium channel for CMOS performance enhancement
    22.
    发明申请
    Strain balanced structure with a tensile strained silicon channel and a compressive strained silicon-germanium channel for CMOS performance enhancement 有权
    应变平衡结构具有拉伸应变硅通道和压缩应变硅 - 锗通道,用于CMOS性能提升

    公开(公告)号:US20050272188A1

    公开(公告)日:2005-12-08

    申请号:US11201990

    申请日:2005-08-11

    摘要: A method of fabricating a CMOS device wherein mobility enhancement of both the NMOS and PMOS elements is realized via strain induced band structure modification, has been developed. The NMOS element is formed featuring a silicon channel region under biaxial strain while the PMOS element is simultaneously formed featuring a SiGe channel region under biaxial compressive strain. A novel process sequence allowing formation of a thicker silicon layer overlying a SiGe layer, allows the NMOS channel region to exist in the silicon layer overlying a SiGe layer, allows the NMOS channel region to exist in the silicon layer which is under biaxial tensile strain enhancing electron mobility. The same novel process sequence results in the presence of a thinner silicon layer, overlying the same SiGe layer in the PMOS region, allowing the PMOS channel region to exist in the biaxial compressively strained SiGe layer, resulting in hole mobility enhancement.

    摘要翻译: 已经开发了通过应变诱导带结构修改来实现NMOS和PMOS元件的迁移率增强的CMOS器件的制造方法。 NMOS元件形成为具有双轴应变下的硅沟道区,同时形成在双轴压缩应变下具有SiGe沟道区的PMOS元件。 允许形成覆盖SiGe层的较厚硅层的新颖工艺顺序允许NMOS沟道区存在于覆盖SiGe层的硅层中,允许NMOS沟道区存在于双层拉伸应变增强下的硅层中 电子迁移率。 相同的新工艺序列导致存在较薄的硅层,覆盖PMOS区域中相同的SiGe层,允许PMOS沟道区存在于双轴压缩应变SiGe层中,导致空穴迁移率增强。

    Method of fabricating a wafer with strained channel layers for increased electron and hole mobility for improving device performance
    25.
    发明授权
    Method of fabricating a wafer with strained channel layers for increased electron and hole mobility for improving device performance 有权
    制造具有应变通道层的晶片以提高电子和空穴迁移率以提高器件性能的方法

    公开(公告)号:US06812116B2

    公开(公告)日:2004-11-02

    申请号:US10318454

    申请日:2002-12-13

    IPC分类号: H01L21301

    摘要: A method for making a SOI wafer with a strained silicon layer for increased electron and hole mobility is achieved. The method forms a porous silicon layer on a seed wafer. A H2 anneal is used to form a smooth surface on the porous silicon. A strain free (relaxed) epitaxial SixGe1−x layer is deposited and a bonding layer is formed. The seed wafer is then bonded to a handle wafer having an insulator on the surface. A spray etch is used to etch the porous Si layer resulting in a SOI handle wafer having portions of the porous Si layer on the relaxed SixGe1−x. The handle wafer is then annealed in H2 to convert the porous Si to a smooth strained Si layer on the relaxed SiGe layer of the SOI wafer.

    摘要翻译: 实现了制造具有用于增加电子和空穴迁移率的应变硅层的SOI晶片的方法。 该方法在种子晶片上形成多孔硅层。 使用H2退火在多孔硅上形成光滑表面。 沉积无应变的(松弛的)外延六面体Ge-x层并形成结合层。 然后将种子晶片结合到在表面上具有绝缘体的手柄晶片。 使用喷涂蚀刻来蚀刻多孔Si层,导致SOI处理晶片,其具有在松弛的SixGe1-x上的多孔Si层的部分。 然后将处理晶片在H 2中退火以将多孔Si转化为SOI晶片的松弛SiGe层上的平滑应变Si层。

    STRAINED-CHANNEL SEMICONDUCTOR STRUCTURE AND METHOD FOR FABRICATING THE SAME
    28.
    发明申请
    STRAINED-CHANNEL SEMICONDUCTOR STRUCTURE AND METHOD FOR FABRICATING THE SAME 有权
    应变通道半导体结构及其制造方法

    公开(公告)号:US20060220119A1

    公开(公告)日:2006-10-05

    申请号:US11423457

    申请日:2006-06-12

    IPC分类号: H01L29/76 H01L29/94 H01L31/00

    摘要: A strained-channel semiconductor structure and method of fabricating the same. The strained-channel semiconductor structure comprises a substrate composed of a first semiconductor material with a first natural lattice constant. A channel region is disposed in the substrate and a gate stack is disposed over the strained channel region A pair of source/drain regions are oppositely disposed in the substrate adjacent to the channel region, wherein each of the source/drain regions comprises a lattice-mismatched zone comprising a second semiconductor material with a second natural lattice constant rather than the first natural lattice constant, an inner side and an outer side corresponding to the gate stack, and at least one outer sides laterally contacts the first semiconductor material of the substrate.

    摘要翻译: 应变通道半导体结构及其制造方法。 应变通道半导体结构包括由具有第一自然晶格常数的第一半导体材料构成的衬底。 沟道区设置在衬底中,并且栅堆叠设置在应变沟道区上方,一对源极/漏极区相对地设置在与沟道区相邻的衬底中,其中源/漏区中的每一个包括晶格 - 错配区域包括具有第二自然晶格常数而不是第一自然晶格常数的第二半导体材料,对应于栅极堆叠的内侧和外侧,并且至少一个外侧横向接触基板的第一半导体材料。