METHOD OF FORMING FIN-FIELD EFFECT TRANSISTOR (finFET) STRUCTURE
    22.
    发明申请
    METHOD OF FORMING FIN-FIELD EFFECT TRANSISTOR (finFET) STRUCTURE 有权
    形成Fin场效应晶体管(finFET)结构的方法

    公开(公告)号:US20140038369A1

    公开(公告)日:2014-02-06

    申请号:US13565838

    申请日:2012-08-03

    IPC分类号: H01L21/8238 H01L21/336

    CPC分类号: H01L21/845 H01L27/1211

    摘要: Various embodiments include methods of forming semiconductor structures. In one embodiment, a method includes: providing a precursor structure including a substrate and a set of fins overlying the substrate; forming a dummy epitaxy between the fins in the set of fins; masking a first group of fins in the set of fins and the dummy epitaxy between the first group of fins in the set of fins; removing the dummy epitaxy to expose a second group of the fins; forming a first in-situ doped epitaxy between the exposed fins; masking the second group of fins in the set of fins and the in-situ doped epitaxy between the second group of fins in the set of fins; unmasking the first group of fins; removing the dummy epitaxy layer between the first group of fins to expose of the first group of fins; and forming a second in-situ doped epitaxy between the exposed fins.

    摘要翻译: 各种实施例包括形成半导体结构的方法。 在一个实施例中,一种方法包括:提供包括衬底和覆盖衬底的一组鳍片的前体结构; 在翅片组中的翅片之间形成虚拟外延; 掩蔽该组散热片中的第一组散热片和在一组翅片中的第一组翅片之间的虚设外延; 去除所述虚拟外延以暴露第二组散热片; 在暴露的翅片之间形成第一原位掺杂外延; 掩蔽该组散热片中的第二组翅片和在该组翅片中的第二组翅片之间的原位掺杂的外延; 揭开第一组翅片; 去除第一组翅片之间的虚拟外延层以暴露第一组翅片; 以及在所述暴露的鳍之间形成第二原位掺杂的外延。

    TRANSISTOR WITH IMPROVED SIGMA-SHAPED EMBEDDED STRESSOR AND METHOD OF FORMATION
    25.
    发明申请
    TRANSISTOR WITH IMPROVED SIGMA-SHAPED EMBEDDED STRESSOR AND METHOD OF FORMATION 失效
    具有改进的SIGMA形状嵌入式压力器的晶体管和形成方法

    公开(公告)号:US20130285123A1

    公开(公告)日:2013-10-31

    申请号:US13457980

    申请日:2012-04-27

    摘要: A method and structure of an embedded stressor in a semiconductor transistor device having a sigma-shaped channel sidewall and a vertical isolation sidewall. The embedded stressor structure is made by a first etch to form a recess in a substrate having a gate and first and second spacers. The second spacers are removed and a second etch creates a step in the recess on a channel sidewall. An anisotropic etch creates facets in the channel sidewall of the recess. Where the facets meet, a vertex is formed. The depth of the vertex is determined by the second etch depth (step depth). The lateral position of the vertex is determined by the thickness of the first spacers. A semiconductor material having a different lattice spacing than the substrate is formed in the recess to achieve the embedded stressor structure.

    摘要翻译: 具有西格玛通道侧壁和垂直隔离侧壁的半导体晶体管器件中的嵌入式应力源的方法和结构。 嵌入的应力器结构由第一蚀刻制成,以在具有栅极和第一和第二间隔物的衬底中形成凹陷。 去除第二间隔物,并且第二蚀刻在通道侧壁上的凹部中形成台阶。 各向异性蚀刻在凹槽的通道侧壁中产生刻面。 小面相遇时,形成顶点。 顶点的深度由第二蚀刻深度(阶梯深度)决定。 顶点的横向位置由第一间隔件的厚度决定。 在凹部中形成具有与衬底不同的晶格间距的半导体材料,以实现嵌入的应力器结构。

    SELECTIVELY RAISED SOURCE/DRAIN TRANSISTOR
    26.
    发明申请
    SELECTIVELY RAISED SOURCE/DRAIN TRANSISTOR 有权
    选择性提取源/漏极晶体管

    公开(公告)号:US20130249006A1

    公开(公告)日:2013-09-26

    申请号:US13424787

    申请日:2012-03-20

    IPC分类号: H01L27/088 H01L21/336

    摘要: A lower raised source/drain region is formed on a planar source/drain region of a planar field effect transistor or a surface of a portion of semiconductor fin adjoining a channel region of a fin field effect transistor. At least one contact-level dielectric material layer is formed and planarized, and a contact via hole extending to the lower raised source/drain region is formed in the at least one contact-level dielectric material layer. An upper raised source/drain region is formed on a top surface of the lower raised source/drain region. A metal semiconductor alloy portion and a contact via structure are formed within the contact via hole. Formation of the upper raised source/drain region is limited to a bottom portion of the contact via hole, thereby preventing formation of, and increase of parasitic capacitance by, any additional raised structure in source/drain regions that are not contacted.

    摘要翻译: 在平面场效应晶体管的平面源极/漏极区域或与鳍状场效应晶体管的沟道区域相邻的半导体鳍片的一部分的表面上形成下部凸起的源极/漏极区域。 形成并平坦化至少一个接触层介电材料层,并且在该至少一个接触层电介质材料层中形成延伸到下凸起源/漏区的接触通孔。 上凸起的源/漏区形成在下凸起的源/漏区的顶表面上。 在接触通孔内形成金属半导体合金部分和接触通孔结构。 上部隆起源极/漏极区域的形成被限制在接触通孔的底部,从而通过未被接触的源极/漏极区域中的任何额外的凸起结构来防止寄生电容的形成和增加。

    THIN HETEREOSTRUCTURE CHANNEL DEVICE
    28.
    发明申请
    THIN HETEREOSTRUCTURE CHANNEL DEVICE 有权
    薄型结构通道设备

    公开(公告)号:US20130161694A1

    公开(公告)日:2013-06-27

    申请号:US13607875

    申请日:2012-09-10

    摘要: A method of fabricating a semiconductor device that includes providing a substrate having at least a first semiconductor layer atop a dielectric layer, wherein the first semiconductor layer has a first thickness of less than 10 nm. The first semiconductor layer is etched with a halide based gas at a temperature of less than 675° C. to a second thickness that is less than the first thickness. A second semiconductor layer is epitaxially formed on an etched surface of the first semiconductor layer. A gate structure is formed directly on the second semiconductor layer. A source region and a drain region is formed on opposing sides of the gate structure.

    摘要翻译: 一种制造半导体器件的方法,其包括提供在电介质层顶部具有至少第一半导体层的衬底,其中所述第一半导体层具有小于10nm的第一厚度。 在小于675℃的温度下用卤化物基气体蚀刻第一半导体层至小于第一厚度的第二厚度。 在第一半导体层的蚀刻表面上外延形成第二半导体层。 栅极结构直接形成在第二半导体层上。 源极区域和漏极区域形成在栅极结构的相对侧上。