STRAINED SILICON STRUCTURE
    82.
    发明申请
    STRAINED SILICON STRUCTURE 有权
    应变硅结构

    公开(公告)号:US20050093018A1

    公开(公告)日:2005-05-05

    申请号:US10699574

    申请日:2003-10-31

    摘要: A semiconductor device includes a substrate, a first epitaxial layer, a second epitaxial layer, a third epitaxial layer, a first trench, and a second trench. The first epitaxial layer is formed on the substrate. The first layer has lattice mismatch relative to the substrate. The second epitaxial layer is formed on the first layer, and the second layer has lattice mismatch relative to the first layer. The third epitaxial layer is formed on the second layer, and the third layer has lattice mismatch relative to the second layer. Hence, the third layer may be strained silicon. The first trench extends through the first layer. The second trench extends through the third layer and at least partially through the second layer. At least part of the second trench is aligned with at least part of the first trench, and the second trench is at least partially filled with an insulating material.

    摘要翻译: 半导体器件包括衬底,第一外延层,第二外延层,第三外延层,第一沟槽和第二沟槽。 第一外延层形成在基板上。 第一层相对于衬底具有晶格失配。 第二外延层形成在第一层上,第二层相对于第一层具有晶格失配。 第三外延层形成在第二层上,第三层相对于第二层具有晶格失配。 因此,第三层可以是应变硅。 第一沟槽延伸穿过第一层。 第二沟槽延伸穿过第三层并且至少部分地穿过第二层。 所述第二沟槽的至少一部分与所述第一沟槽的至少一部分对准,并且所述第二沟槽至少部分地填充有绝缘材料。

    Strained channel complementary field-effect transistors
    83.
    发明授权
    Strained channel complementary field-effect transistors 有权
    应变通道互补场效应晶体管

    公开(公告)号:US07442967B2

    公开(公告)日:2008-10-28

    申请号:US11407633

    申请日:2006-04-20

    IPC分类号: H01L31/0328

    摘要: A transistor includes a gate dielectric overlying a channel region. A source region and a drain region are located on opposing sides of the channel region. The channel region is formed from a first semiconductor material and the source and drain regions are formed from a second semiconductor material. A gate electrode overlies the gate dielectric. A pair of spacers is formed on sidewalls of the gate electrode. Each of the spacers includes a void adjacent the channel region. A high-stress film can overlie the gate electrode and spacers.

    摘要翻译: 晶体管包括覆盖沟道区的栅极电介质。 源极区域和漏极区域位于沟道区域的相对侧上。 沟道区由第一半导体材料形成,源极和漏极区由第二半导体材料形成。 栅极电极覆盖栅极电介质。 在栅电极的侧壁上形成一对间隔物。 每个间隔件包括邻近通道区域的空隙。 高应力膜可以覆盖栅电极和间隔物。

    Semiconductor structure having a strained region and a method of fabricating same
    88.
    发明授权
    Semiconductor structure having a strained region and a method of fabricating same 有权
    具有应变区域的半导体结构及其制造方法

    公开(公告)号:US07495267B2

    公开(公告)日:2009-02-24

    申请号:US11409405

    申请日:2006-04-21

    IPC分类号: H01L31/0368

    摘要: A semiconductor structure including a highly strained selective epitaxial top layer suitable for use in fabricating a strained channel transistor. The top layer is deposited on the uppermost of a series of one or more lower layers. The lattice of each layer is mismatched with the lattice of its subjacent layer by an amount not less than the lattice mismatch between the lowest layer of the series and a substrate on which it resides. A trench is formed in the uppermost series layer. The trench has rounded corners so that a dielectric material filling the trench conforms to the round corners. The rounded corners are produced by heating the uppermost series layer after trench formation.

    摘要翻译: 包括适用于制造应变通道晶体管的高应变选择性外延顶层的半导体结构。 顶层沉积在一系列一个或多个下层的最上面。 每个层的晶格与其下层的晶格不匹配,其量不小于该系列的最低层与其所在的衬底之间的晶格失配。 沟槽形成在最上层的层中。 沟槽具有圆角,使得填充沟槽的电介质材料符合圆角。 通过在沟槽形成之后加热最上面的串联层来产生圆角。

    Strained silicon structure
    90.
    发明授权
    Strained silicon structure 有权
    应变硅结构

    公开(公告)号:US07208754B2

    公开(公告)日:2007-04-24

    申请号:US11114981

    申请日:2005-04-26

    IPC分类号: H01L29/06

    摘要: A semiconductor device includes a substrate, a first epitaxial layer, a second epitaxial layer, a third epitaxial layer, a first trench, and a second trench. The first epitaxial layer is formed on the substrate. The first layer has lattice mismatch relative to the substrate. The second epitaxial layer is formed on the first layer, and the second layer has lattice mismatch relative to the first layer. The third epitaxial layer is formed on the second layer, and the third layer has lattice mismatch relative to the second layer. Hence, the third layer may be strained silicon. The first trench extends through the first layer. The second trench extends through the third layer and at least partially through the second layer. At least part of the second trench is aligned with at least part of the first trench, and the second trench is at least partially filled with an insulating material.

    摘要翻译: 半导体器件包括衬底,第一外延层,第二外延层,第三外延层,第一沟槽和第二沟槽。 第一外延层形成在基板上。 第一层相对于衬底具有晶格失配。 第二外延层形成在第一层上,第二层相对于第一层具有晶格失配。 第三外延层形成在第二层上,第三层相对于第二层具有晶格失配。 因此,第三层可以是应变硅。 第一沟槽延伸穿过第一层。 第二沟槽延伸穿过第三层并且至少部分地穿过第二层。 所述第二沟槽的至少一部分与所述第一沟槽的至少一部分对准,并且所述第二沟槽至少部分地填充有绝缘材料。