Transistor with a strained region and method of manufacture
    3.
    发明授权
    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:US07335929B2

    公开(公告)日:2008-02-26

    申请号:US10967917

    申请日:2004-10-18

    IPC分类号: H01L31/00

    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。

    Method of fabricating a wafer with strained channel layers for increased electron and hole mobility for improving device performance
    4.
    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:US07312136B2

    公开(公告)日:2007-12-25

    申请号:US10899270

    申请日:2004-07-26

    IPC分类号: H01L21/20

    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H 2 H 2退火在多孔硅上形成光滑表面。 沉积无应变的(松弛的)外延的Si 1 x 1-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Si 1 x 1-x x上的多孔Si层的部分。 然后将手柄晶片在H 2 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
    8.
    发明授权
    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:US07381604B2

    公开(公告)日:2008-06-03

    申请号:US11423457

    申请日:2006-06-12

    IPC分类号: H01L21/336

    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。 通道区域设置在衬底中,并且栅堆叠设置在应变通道区域上。 一对源极/漏极区域相邻地设置在衬底中,与沟道区域相邻,其中源极/漏极区域中的每个源极/漏极区域包括具有第二自然晶格常数而不是第一自然晶格的第二半导体材料的晶格失配区域 常数,对应于栅极叠层的内侧和外侧,并且至少一个外侧横向接触基板的第一半导体材料。