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    HYBRID SOI/BULK SEMICONDUCTOR TRANSISTORS
    31.
    发明申请
    HYBRID SOI/BULK SEMICONDUCTOR TRANSISTORS 失效
    混合SOI / BULK半导体晶体管

    公开(公告)号：US20080242069A1

    公开(公告)日：2008-10-02

    申请号：US12132853

    申请日：2008-06-04

    申请人： Huilong Zhu ,  Philip J. Oldiges ,  Bruce B. Doris ,  Xinlin Wang ,  Oleg Gluschenkov ,  Huajie Chen ,  Ying Zhang

    发明人： Huilong Zhu ,  Philip J. Oldiges ,  Bruce B. Doris ,  Xinlin Wang ,  Oleg Gluschenkov ,  Huajie Chen ,  Ying Zhang

    IPC分类号： H01L21/3205

    CPC分类号： H01L29/7849 ,  H01L29/0653 ,  H01L29/1054 ,  H01L29/7842 ,  H01L29/78603 ,  H01L29/78612 ,  H01L29/78618 ,  H01L29/78687

    摘要： Channel depth in a field effect transistor is limited by an intra-layer structure including a discontinuous film or layer formed within a layer or substrate of semiconductor material. Channel depth can thus be controlled much in the manner of SOI or UT-SOI technology but with less expensive substrates and greater flexibility of channel depth control while avoiding floating body effects characteristic of SOI technology. The profile or cross-sectional shape of the discontinuous film may be controlled to an ogee or staircase shape to improve short channel effects and reduce source/drain and extension resistance without increase of capacitance. Materials for the discontinuous film may also be chosen to impose stress on the transistor channel from within the substrate or layer and provide increased levels of such stress to increase carrier mobility. Carrier mobility may be increased in combination with other meritorious effects.

    摘要翻译： 场效应晶体管中的沟道深度由包括在半导体材料的层或衬底内形成的不连续膜或层的层内结构限制。 因此，可以以SOI或UT-SOI技术的方式控制通道深度，但是具有较便宜的衬底和更大的通道深度控制的灵活性，同时避免SOI技术的浮体效应特性。 不连续膜的轮廓或横截面形状可以被控制为奥格或阶梯形状，以改善短通道效应，并且在不增加电容的情况下降低源极/漏极和延伸电阻。 也可以选择用于不连续膜的材料以在衬底或层内从晶体管沟道施加应力，并提供增加的这种应力水平以增加载流子迁移率。 携带者的流动性可能会与其他有利的影响相结合。

    Semiconductor device structure with active regions having different surface directions and methods
    32.
    发明授权
    Semiconductor device structure with active regions having different surface directions and methods 有权
    具有不同表面方向和方法的有源区的半导体器件结构

    公开(公告)号：US07354806B2

    公开(公告)日：2008-04-08

    申请号：US10711416

    申请日：2004-09-17

    申请人： Bruce B. Doris ,  Oleg Gluschenkov ,  MeiKei Ieong ,  Effendi Leobandung ,  Huilong Zhu

    发明人： Bruce B. Doris ,  Oleg Gluschenkov ,  MeiKei Ieong ,  Effendi Leobandung ,  Huilong Zhu

    IPC分类号： H01L21/00

    CPC分类号： H01L29/045 ,  H01L21/76275 ,  H01L21/76278 ,  H01L21/823807 ,  H01L21/84 ,  H01L27/1203 ,  H01L29/7842

    摘要： Semiconductor structure and method to simultaneously achieve optimal stress type and current flow for both nFET and pFET devices, and for gates orientated in one direction, are disclosed. One embodiment of the method includes bonding a first wafer having a first surface direction and a first surface orientation atop a second wafer having a different second surface orientation and a different second surface direction; forming an opening through the first wafer to the second wafer; and forming a region in the opening coplanar with a surface of the first wafer, wherein the region has the second surface orientation and the second surface direction. The semiconductor device structure includes at least two active regions having different surface directions, each active region including one of a plurality of nFETs and a plurality of pFETs, and wherein a gate electrode orientation is such that the nFETs and the pFETs are substantially parallel to each other.

    摘要翻译： 公开了同时实现nFET和pFET器件以及朝向一个方向的栅极的最佳应力类型和电流流动的半导体结构和方法。 该方法的一个实施例包括将具有第一表面方向的第一晶片和具有不同的第二表面取向和不同的第二表面方向的第二晶片顶部的第一表面取向接合; 形成通过所述第一晶片的开口到所述第二晶片; 以及在所述开口中形成与所述第一晶片的表面共面的区域，其中所述区域具有第二表面取向和所述第二表面方向。 半导体器件结构包括具有不同表面方向的至少两个有源区，每个有源区包括多个nFET和多个pFET中的一个，并且其中栅电极取向使得nFET和pFET基本上平行于每个 其他。

    Method of fabricating mobility enhanced CMOS devices
    33.
    发明授权
    Method of fabricating mobility enhanced CMOS devices 失效
    制造移动性增强型CMOS器件的方法

    公开(公告)号：US07205206B2

    公开(公告)日：2007-04-17

    申请号：US10708430

    申请日：2004-03-03

    申请人： Michael P. Belyansky ,  Bruce B. Doris ,  Oleg Gluschenkov

    发明人： Michael P. Belyansky ,  Bruce B. Doris ,  Oleg Gluschenkov

    IPC分类号： H01L21/76

    CPC分类号： H01L29/0653 ,  H01L29/66636 ,  H01L29/7848

    摘要： Compressive or tensile materials are selectively introduced beneath and in alignment with spacer areas and adjacent to channel areas of a semiconductor substrate to enhance or degrade electron and hole mobility in CMOS circuits. A process entails steps of creating dummy spacers, forming a dielectric mandrel (i.e., mask), removing the dummy spacers, etching recesses into the underlying semiconductor substrate, introducing a compressive or tensile material into a portion of each recess, and filling the remainder of each recess with substrate material.

    摘要翻译： 压缩或拉伸材料被选择性地引入到间隔区域的下方并且与半导体衬底的通道区域相邻并且与CMOS电路中的电子和空穴迁移率相关联。 一个过程需要创建虚拟间隔物的步骤，形成介质心轴（即掩模），去除虚拟间隔物，将凹槽蚀刻到下面的半导体衬底中，将压缩或拉伸材料引入每个凹部的一部分中， 每个凹槽与基底材料。

    Highly manufacturable SRAM cells in substrates with hybrid crystal orientation
    34.
    发明授权
    Highly manufacturable SRAM cells in substrates with hybrid crystal orientation 有权
    具有混合晶体取向的基板中的高度可制造的SRAM单元

    公开(公告)号：US07605447B2

    公开(公告)日：2009-10-20

    申请号：US11162780

    申请日：2005-09-22

    申请人： Bruce B. Doris ,  Gregory Costrini ,  Oleg Gluschenkov ,  Meikei Ieong ,  Nakgeuon Seong

    发明人： Bruce B. Doris ,  Gregory Costrini ,  Oleg Gluschenkov ,  Meikei Ieong ,  Nakgeuon Seong

    IPC分类号： H01L29/06 ,  H01L29/04 ,  H01L27/11

    CPC分类号： H01L27/1104 ,  H01L27/11 ,  Y10S257/903 ,  Y10S438/973

    摘要： The present invention relates to a semiconductor device structure that includes at least one SRAM cell formed in a substrate. Such SRAM cell comprises two pull-up transistors, two pull-down transistors, and two pass-gate transistors. The pull-down transistors and the pass-gate transistors are substantially similar in channel widths and have substantially similar source-drain doping concentrations, while the SRAM cell has a beta ratio of at least 1.5. The substrate preferably comprises a hybrid substrate with at two isolated sets of regions, while carrier mobility in these two sets of regions differentiates by a factor of at least about 1.5. More preferably, the pull-down transistors of the SRAM cell are formed in one set of regions, and the pass-gate transistors are formed in the other set of regions, so that current flow in the pull-down transistors is larger than that in the pass-gate transistors.

    摘要翻译： 本发明涉及一种半导体器件结构，其包括在衬底中形成的至少一个SRAM单元。 这样的SRAM单元包括两个上拉晶体管，两个下拉晶体管和两个通过栅极晶体管。 下拉晶体管和栅极晶体管在沟道宽度上基本相似，并且具有基本相似的源极 - 漏极掺杂浓度，而SRAM单元的β比率至少为1.5。 衬底优选地包括具有两个分离的区域集合的混合衬底，而这两组区域中的载流子迁移率以至少约1.5的因子差分。 更优选地，SRAM单元的下拉晶体管形成在一组区域中，并且栅极晶体管形成在另一组区域中，使得下拉晶体管中的电流大于 传输栅晶体管。

    Hybrid SOI-bulk semiconductor transistors
    35.
    发明授权
    Hybrid SOI-bulk semiconductor transistors 失效
    混合SOI体半导体晶体管

    公开(公告)号：US07452761B2

    公开(公告)日：2008-11-18

    申请号：US11870436

    申请日：2007-10-11

    申请人： Huilong Zhu ,  Philip J. Oldiges ,  Bruce B. Doris ,  Xinlin Wang ,  Oleg Gluschenkov ,  Huajie Chen ,  Ying Zhang

    发明人： Huilong Zhu ,  Philip J. Oldiges ,  Bruce B. Doris ,  Xinlin Wang ,  Oleg Gluschenkov ,  Huajie Chen ,  Ying Zhang

    IPC分类号： H01L21/00 ,  H01L21/84 ,  H01L21/336

    CPC分类号： H01L29/7849 ,  H01L29/0653 ,  H01L29/1054 ,  H01L29/7842 ,  H01L29/78603 ,  H01L29/78612 ,  H01L29/78618 ,  H01L29/78687

    摘要： Channel depth in a field effect transistor is limited by an intra-layer structure including a discontinuous film or layer formed within a layer or substrate of semiconductor material. Channel depth can thus be controlled much in the manner of SOI or UT-SOI technology but with less expensive substrates and greater flexibility of channel depth control while avoiding floating body effects characteristic of SOI technology. The profile or cross-sectional shape of the discontinuous film may be controlled to an ogee or staircase shape to improve short channel effects and reduce source/drain and extension resistance without increase of capacitance. Materials for the discontinuous film may also be chosen to impose stress on the transistor channel from within the substrate or layer and provide increased levels of such stress to increase carrier mobility. Carrier mobility may be increased in combination with other meritorious effects.

    摘要翻译： 场效应晶体管中的沟道深度由包括在半导体材料的层或衬底内形成的不连续膜或层的层内结构限制。 因此，可以以SOI或UT-SOI技术的方式控制通道深度，但是具有较便宜的衬底和更大的通道深度控制的灵活性，同时避免SOI技术的浮体效应特性。 不连续膜的轮廓或横截面形状可以被控制为奥格或阶梯形状，以改善短通道效应，并且在不增加电容的情况下降低源极/漏极和延伸电阻。 也可以选择用于不连续膜的材料以在衬底或层内从晶体管沟道施加应力，并提供增加的这种应力水平以增加载流子迁移率。 携带者的流动性可能会与其他有利的影响相结合。

    Self-aligned low-k gate cap
    39.
    发明授权
    Self-aligned low-k gate cap 有权
    自对准低k门帽

    公开(公告)号：US07230296B2

    公开(公告)日：2007-06-12

    申请号：US10904391

    申请日：2004-11-08

    申请人： Oleg Gluschenkov ,  Jack A. Mandelman ,  Michael P. Belyansky ,  Bruce B. Doris

    发明人： Oleg Gluschenkov ,  Jack A. Mandelman ,  Michael P. Belyansky ,  Bruce B. Doris

    IPC分类号： H01L29/772

    CPC分类号： H01L21/76834 ,  H01L21/28052 ,  H01L21/76897 ,  H01L29/6653 ,  H01L29/6659 ,  H01L29/7833

    摘要： A CMOS structure in which the gate-to-drain/source capacitance is reduced as well as various methods of fabricating such a structure are provided. In accordance with the present invention, it has been discovered that the gate-to-drain/source capacitance can be significantly reduced by forming a CMOS structure in which a low-k dielectric material is self-aligned with the gate conductor. A reduction in capacitance between the gate conductor and the contact via ranging from about 30% to greater than 40% has been seen with the inventive structures. Moreover, the total outer-fringe capacitance (gate to outer diffusion+gate to contact via) is reduced between 10–18%. The inventive CMOS structure includes at least one gate region including a gate conductor located atop a surface of a semiconductor substrate; and a low-k dielectric material that is self-aligned to the gate conductor.

    摘要翻译： 提供其中栅极 - 漏极/源极电容减小的CMOS结构以及制造这种结构的各种方法。 根据本发明，已经发现，通过形成其中低k电介质材料与栅极导体自对准的CMOS结构，可以显着降低栅 - 漏/源电容。 本发明的结构已经看到，栅极导体和接触孔之间的电容减小范围为约30％至大于40％。 此外，总外部电容（门到外部扩散+接触通孔的栅极）在10-18％之间降低。 本发明的CMOS结构包括至少一个栅极区，其包括位于半导体衬底的表面上方的栅极导体; 以及与栅极导体自对准的低k电介质材料。

    CMOS transistor structure including film having reduced stress by exposure to atomic oxygen
    40.
    发明授权
    CMOS transistor structure including film having reduced stress by exposure to atomic oxygen 失效
    CMOS晶体管结构包括通过暴露于原子氧而具有减小的应力的膜

    公开(公告)号：US07202516B2

    公开(公告)日：2007-04-10

    申请号：US11318844

    申请日：2005-12-27

    申请人： Michael P. Belyansky ,  Diane C. Boyd ,  Bruce B. Doris ,  Oleg Gluschenkov

    发明人： Michael P. Belyansky ,  Diane C. Boyd ,  Bruce B. Doris ,  Oleg Gluschenkov

    IPC分类号： H01L29/80

    CPC分类号： H01L29/7843 ,  H01L21/823807 ,  H01L21/823814 ,  H01L21/84 ,  H01L27/1203

    摘要： A structure and method are provided in which a stress present in a film is reduced in magnitude by oxidizing the film through atomic oxygen supplied to a surface of the film. In an embodiment, a mask is used to selectively block portions of the film so that the stress is relaxed only in areas exposed to the oxidation process. A structure and method are further provided in which a film having a stress is formed over source and drain regions of an NFET and a PFET. The stress present in the film over the source and drain regions of either the NFET or the PFET is then relaxed by oxidizing the film through exposure to atomic oxygen to provide enhanced mobility in at least one of the NFET or the PFET while maintaining desirable mobility in the other of the NFET and PFET.

    摘要翻译： 提供了一种结构和方法，其中通过供应到膜的表面的原子氧氧化膜来减小膜中存在的应力。 在一个实施例中，掩模用于选择性地阻挡膜的部分，使得应力仅在暴露于氧化过程的区域中松弛。 还提供了一种结构和方法，其中在NFET和PFET的源极和漏极区域上形成具有应力的膜。 然后在NFET或PFET的源极和漏极区域上存在于膜中的应力通过暴露于原子氧氧化膜而被松弛，以在至少一个NFET或PFET中提供增强的迁移率，同时保持理想的迁移率 另一个是NFET和PFET。