公开(公告)号：US20090302348A1

公开(公告)日：2009-12-10

申请号：US12136195

申请日：2008-06-10

申请人： Thomas N. Adam ,  Judson R. Holt ,  Thomas A. Wallner

发明人： Thomas N. Adam ,  Judson R. Holt ,  Thomas A. Wallner

IPC分类号： H01L21/336 ,  H01L29/78

CPC分类号： H01L21/26513 ,  H01L21/26506 ,  H01L21/2658 ,  H01L29/165 ,  H01L29/66628 ,  H01L29/66636 ,  H01L29/78 ,  H01L29/7848

摘要： Stress enhanced transistor devices and methods of fabricating the same are provided. In one embodiment, a transistor device comprises: a gate conductor disposed above a semiconductor substrate between a pair of dielectric spacers, wherein the semiconductor substrate comprises a channel region underneath the gate conductor and recessed regions on opposite sides of the channel region, wherein the recessed regions undercut the dielectric spacers to form undercut areas of the channel region; and epitaxial source and drain regions disposed in the recessed regions of the semiconductor substrate and extending laterally underneath the dielectric spacers into the undercut areas of the channel region.

摘要翻译： 提供了应力增强型晶体管器件及其制造方法。 在一个实施例中，晶体管器件包括：栅极导体，设置在一对电介质间隔物之间​​的半导体衬底之上，其中半导体衬底包括位于栅极导体下方的沟道区域和沟道区域相对侧上的凹陷区域， 区域覆盖电介质间隔物以形成通道区域的底切区域; 以及设置在半导体衬底的凹陷区域中的外延源极和漏极区域，并且在电介质间隔物的下方横向延伸到沟道区域的底切区域中。

公开(公告)号：US07582516B2

公开(公告)日：2009-09-01

申请号：US11422443

申请日：2006-06-06

申请人： Thomas W. Dyer ,  Sunfei Fang ,  Judson R. Holt

发明人： Thomas W. Dyer ,  Sunfei Fang ,  Judson R. Holt

IPC分类号： H01L21/00 ,  H01L21/76

CPC分类号： H01L29/045 ,  H01L21/823807 ,  H01L21/823821 ,  H01L21/823857 ,  H01L29/1037 ,  H01L29/78 ,  H01L29/7853

摘要： The present invention relates to a semiconductor substrate comprising at least first and second device regions. The first device region has a substantially planar surface oriented along one of a first set of equivalent crystal planes, and the second device region contains a protruding semiconductor structure having multiple intercepting surfaces oriented along a second, different set of equivalent crystal planes. A semiconductor device structure can be formed using such a semiconductor substrate. Specifically, a first field effect transistor (FET) can be formed at the first device region, which comprises a channel that extends along the substantially planar surface of the first device region. A second, complementary FET can be formed at the second device region, while the second, complementary FET comprises a channel that extends along the multiple intercepting surfaces of the protruding semiconductor structure at the second device region.

摘要翻译： 本发明涉及包括至少第一和第二器件区域的半导体衬底。 第一器件区域具有沿着第一组等效晶面中的一个取向的基本平坦的表面，并且第二器件区域包含具有沿第二不同组的等效晶面取向的多个截止面的突出半导体结构。 可以使用这种半导体衬底形成半导体器件结构。 具体地，可以在第一器件区域处形成第一场效应晶体管（FET），该第一器件区域包括沿着第一器件区域的基本平坦的表面延伸的沟道。 第二互补FET可以形成在第二器件区域，而第二互补FET包括在第二器件区域沿着突出半导体结构的多个截止表面延伸的沟道。

公开(公告)号：US20080258180A1

公开(公告)日：2008-10-23

申请号：US11306721

申请日：2006-01-09

申请人： Huajie Chen ,  Dureseti Chidambarrao ,  Judson R. Holt ,  Qiqing Ouyang ,  Siddhartha Panda

发明人： Huajie Chen ,  Dureseti Chidambarrao ,  Judson R. Holt ,  Qiqing Ouyang ,  Siddhartha Panda

IPC分类号： H01L29/78 ,  H01L29/04 ,  H01L21/336

CPC分类号： H01L29/7843 ,  H01L21/823807 ,  H01L21/823814 ,  H01L29/045 ,  H01L29/165 ,  H01L29/665 ,  H01L29/6659 ,  H01L29/66636 ,  H01L29/7833 ,  H01L29/7848

摘要： A semiconductor structure and a method for fabricating the semiconductor structure include a semiconductor substrate having a cross-section hourglass shaped channel region. A stress imparting layer is located adjacent the channel region. The hourglass shape may provide for enhanced vertical tensile stress within the channel region when it is longitudinally compressive stressed by the stress imparting layer.

摘要翻译： 半导体结构和制造半导体结构的方法包括具有横截面沙漏形沟道区域的半导体衬底。 应力施加层位于沟道区附近。 沙漏形状可以在通过应力施加层纵向压缩应力时提供通道区域内的增强的垂直拉伸应力。

公开(公告)号：US20080128712A1

公开(公告)日：2008-06-05

申请号：US12028191

申请日：2008-02-08

申请人： Ashima B. Chakravarti ,  Dureseti Chidambarrao ,  Judson R. Holt ,  Yaocheng Liu ,  Kern Rim

发明人： Ashima B. Chakravarti ,  Dureseti Chidambarrao ,  Judson R. Holt ,  Yaocheng Liu ,  Kern Rim

IPC分类号： H01L27/092 ,  H01L29/778

CPC分类号： H01L21/823864 ,  H01L21/76224 ,  H01L21/823807 ,  H01L21/823814 ,  H01L21/823878 ,  H01L29/165 ,  H01L29/66628 ,  H01L29/7843 ,  H01L29/7848

摘要： An embedded silicon carbon (Si:C) having a substitutional carbon content in excess of one percent in order to effectively increase electron mobility by application of tension to a channel region of an NFET is achieved by overfilling a gap or trench formed by transistor gate structures with Si:C and polishing an etching the Si:C to or below a surface of a raised gate structure in a super-Damascene process, leaving Si:C only in selected regions above the transistor source and drain, even though processes capable of depositing Si:C with sufficiently high substitutional carbon content are inherently non-selective.

摘要翻译： 通过过度填充由晶体管栅极结构形成的间隙或沟槽，实现了通过向NFET的沟道区域施加张力来有效地增加电子迁移率的具有超过1％的取代碳含量的嵌入式硅碳（Si：C） 用Si：C，并在超级马赛克法中抛光将Si：C蚀刻到升高的栅极结构的表面或之下，即使在晶体管源极和漏极之上的选定区域中仅保留Si：C，即使能够沉积 具有足够高的替代碳含量的Si：C固有地是非选择性的。

公开(公告)号：US20120168775A1

公开(公告)日：2012-07-05

申请号：US13419164

申请日：2012-03-13

申请人： Johnathan E. Faltermeier ,  Judson R. Holt ,  Xuefeng Hua

发明人： Johnathan E. Faltermeier ,  Judson R. Holt ,  Xuefeng Hua

IPC分类号： H01L29/16 ,  H01L29/78

CPC分类号： H01L29/7849 ,  H01L29/66636 ,  H01L29/78

摘要： A transistor device includes a gate conductor spaced above a semiconductor substrate by a gate dielectric, wherein the semiconductor substrate comprises a channel region underneath the gate conductor and recessed regions on opposite sides of the channel region, wherein the channel region comprises undercut areas under the gate conductor; a stressed material embedded in the undercut areas of the channel region under the gate conductor; and epitaxially grown source and drain regions disposed in the recessed regions of the semiconductor substrate laterally adjacent to the stressed material.

摘要翻译： 晶体管器件包括通过栅极电介质在半导体衬底上间隔开的栅极导体，其中半导体衬底包括位于栅极导体下方的沟道区域和沟道区域相对侧上的凹陷区域，其中该沟道区域包括栅极下方的底切区域 导体; 嵌入在栅极导体下方的沟道区域的底切区域中的应力材料; 并且外延生长的源极和漏极区域设置在半导体衬底的与应力材料横向相邻的凹陷区域中。

公开(公告)号：US20120149159A1

公开(公告)日：2012-06-14

申请号：US13397865

申请日：2012-02-16

申请人： Yaocheng Liu ,  Dureseti Chidambarrao ,  Oleg Gluschenkov ,  Judson R. Holt ,  Renee T. Mo ,  Kern Rim

发明人： Yaocheng Liu ,  Dureseti Chidambarrao ,  Oleg Gluschenkov ,  Judson R. Holt ,  Renee T. Mo ,  Kern Rim

IPC分类号： H01L21/8238

CPC分类号： H01L21/823864 ,  H01L21/76886 ,  H01L21/823807 ,  H01L21/823814 ,  H01L21/84 ,  H01L27/1203 ,  H01L27/3279 ,  H01L29/165 ,  H01L29/665 ,  H01L29/6656 ,  H01L29/66628 ,  H01L29/66636 ,  H01L29/7848

摘要： While embedded silicon germanium alloy and silicon carbon alloy provide many useful applications, especially for enhancing the mobility of MOSFETs through stress engineering, formation of alloyed silicide on these surfaces degrades device performance. The present invention provides structures and methods for providing unalloyed silicide on such silicon alloy surfaces placed on semiconductor substrates. This enables the formation of low resistance contacts for both mobility enhanced PFETs with embedded SiGe and mobility enhanced NFETs with embedded Si:C on the same semiconductor substrate. Furthermore, this invention provides methods for thick epitaxial silicon alloy, especially thick epitaxial Si:C alloy, above the level of the gate dielectric to increase the stress on the channel on the transistor devices.

公开(公告)号：US20120086046A1

公开(公告)日：2012-04-12

申请号：US12901733

申请日：2010-10-11

申请人： Judson R. Holt ,  Viorel C. Ontalus ,  Keith H. Tabakman

发明人： Judson R. Holt ,  Viorel C. Ontalus ,  Keith H. Tabakman

IPC分类号： H01L29/786 ,  H01L21/336

CPC分类号： H01L29/78654 ,  H01L29/66553 ,  H01L29/66651 ,  H01L29/66772 ,  H01L29/7848 ,  H01L29/78618

摘要： A method includes forming a stressed Si layer in a trench formed in a stress layer deposited on a substrate. The stressed Si layer forms an active channel region of a device. The method further includes forming a gate structure in the active channel region formed from the stressed Si layer.

摘要翻译： 一种方法包括在沉积在基底上的应力层中形成的沟槽中形成应力Si层。 受应力的Si层形成器件的有源沟道区。 该方法还包括在由应力Si层形成的有源沟道区中形成栅极结构。

公开(公告)号：US07993990B2

公开(公告)日：2011-08-09

申请号：US12757567

申请日：2010-04-09

申请人： Shreesh Narasimha ,  Paul David Agnello ,  Xiaomeng Chen ,  Judson R. Holt ,  Mukesh Vijay Khare ,  Byeong Y. Kim ,  Devendra K. Sadana

发明人： Shreesh Narasimha ,  Paul David Agnello ,  Xiaomeng Chen ,  Judson R. Holt ,  Mukesh Vijay Khare ,  Byeong Y. Kim ,  Devendra K. Sadana

IPC分类号： H01L21/336

CPC分类号： H01L27/1203 ,  H01L21/84 ,  H01L27/1207

摘要： A semiconductor structure includes an epitaxial surface semiconductor layer having a first dopant polarity and a first crystallographic orientation, and a laterally adjacent semiconductor-on-insulator surface semiconductor layer having a different second dopant polarity and different second crystallographic orientation. The epitaxial surface semiconductor layer has a first edge that has a defect and an adjoining second edge absent a defect. Located within the epitaxial surface semiconductor layer is a first device having a first gate perpendicular to the first edge and a second device having a second gate perpendicular to the second edge. The first device may include a performance sensitive logic device and the second device may include a yield sensitive memory device. An additional semiconductor structure includes a further laterally adjacent second semiconductor-on-insulator surface semiconductor layer having the first polarity and the second crystallographic orientation, and absent edge defects, to accommodate yield sensitive devices.

摘要翻译： 半导体结构包括具有第一掺杂剂极性和第一晶体取向的外延表面半导体层以及具有不同的第二掺杂剂极性和不同的第二晶体取向的横向相邻的绝缘体上半导体表面半导体层。 外延表面半导体层具有缺陷的第一边缘和缺少缺陷的邻接的第二边缘。 位于外延表面半导体层内的是具有垂直于第一边缘的第一栅极的第一器件和具有垂直于第二边缘的第二栅极的第二器件。 第一设备可以包括性能敏感的逻辑设备，并且第二设备可以包括产出敏感的存储设备。 附加的半导体结构包括具有第一极性和第二晶体取向的另外的横向相邻的第二绝缘体上半导体表面半导体层，并且没有边缘缺陷，以适应屈服敏感器件。

公开(公告)号：US07989298B1

公开(公告)日：2011-08-02

申请号：US12692859

申请日：2010-01-25

申请人： Kevin K. Chan ,  Brian J. Greene ,  Judson R. Holt ,  Jeffrey B. Johnson ,  Thomas S. Kanarsky ,  Jophy S. Koshy ,  Kevin McStay ,  Dae-Gyu Park ,  Johan W. Weijtmans ,  Frank B. Yang

发明人： Kevin K. Chan ,  Brian J. Greene ,  Judson R. Holt ,  Jeffrey B. Johnson ,  Thomas S. Kanarsky ,  Jophy S. Koshy ,  Kevin McStay ,  Dae-Gyu Park ,  Johan W. Weijtmans ,  Frank B. Yang

IPC分类号： H01L21/336 ,  H01L21/76

CPC分类号： H01L29/165 ,  H01L29/6653 ,  H01L29/6656 ,  H01L29/6659 ,  H01L29/66636 ,  H01L29/7834 ,  H01L29/7848

摘要： A semiconductor device and a method of making the device are provided. The method can include forming a gate conductor overlying a major surface of a monocrystalline semiconductor region and forming first spacers on exposed walls of the gate conductor. Using the gate conductor and the first spacers as a mask, at least extension regions are implanted in the semiconductor region and dummy spacers are formed extending outward from the first spacers. Using the dummy spacers as a mask, the semiconductor region is etched to form recesses having at least substantially straight walls extending downward from the major surface to a bottom surface, such that a substantial angle is defined between the bottom surface and the walls. Subsequently, the process is continued by epitaxially growing regions of stressed monocrystalline semiconductor material within the recesses. Then the dummy spacers are removed and the transistor can be completed by forming source/drain regions of the transistor that are at least partially disposed in the stressed semiconductor material regions.

摘要翻译： 提供半导体器件和制造该器件的方法。 该方法可以包括形成覆盖在单晶半导体区域的主表面上的栅极导体并且在栅极导体的暴露的壁上形成第一间隔物。 使用栅极导体和第一间隔物作为掩模，至少延伸区域注入到半导体区域中，并且形成从第一间隔物向外延伸的虚设间隔物。 使用虚拟间隔件作为掩模，半导体区域被蚀刻以形成具有从主表面向底表面向下延伸的至少基本上直的壁的凹槽，使得在底表面和壁之间限定大的角度。 随后，通过在凹槽内外延生长应力单晶半导体材料的区域来继续该过程。 然后去除虚拟间隔物，并且可以通过形成至少部分地设置在受应力的半导体材料区域中的晶体管的源极/漏极区域来完成晶体管。

公开(公告)号：US20110183486A1

公开(公告)日：2011-07-28

申请号：US12692859

申请日：2010-01-25

申请人： Kevin K. Chan ,  Brian J. Greene ,  Judson R. Holt ,  Jeffrey B. Johnson ,  Thomas S. Kanarsky ,  Jophy S. Koshy ,  Kevin McStay ,  Dae-Gyu Park ,  Johan W. Weijtmans ,  Frank B. Yang

发明人： Kevin K. Chan ,  Brian J. Greene ,  Judson R. Holt ,  Jeffrey B. Johnson ,  Thomas S. Kanarsky ,  Jophy S. Koshy ,  Kevin McStay ,  Dae-Gyu Park ,  Johan W. Weijtmans ,  Frank B. Yang

IPC分类号： H01L21/336

CPC分类号： H01L29/165 ,  H01L29/6653 ,  H01L29/6656 ,  H01L29/6659 ,  H01L29/66636 ,  H01L29/7834 ,  H01L29/7848

摘要： A semiconductor device and a method of making the device are provided. The method can include forming a gate conductor overlying a major surface of a monocrystalline semiconductor region and forming first spacers on exposed walls of the gate conductor. Using the gate conductor and the first spacers as a mask, at least extension regions are implanted in the semiconductor region and dummy spacers are formed extending outward from the first spacers. Using the dummy spacers as a mask, the semiconductor region is etched to form recesses having at least substantially straight walls extending downward from the major surface to a bottom surface, such that a substantial angle is defined between the bottom surface and the walls. Subsequently, the process is continued by epitaxially growing regions of stressed monocrystalline semiconductor material within the recesses. Then the dummy spacers are removed and the transistor can be completed by forming source/drain regions of the transistor that are at least partially disposed in the stressed semiconductor material regions.

摘要翻译： 提供半导体器件和制造该器件的方法。 该方法可以包括形成覆盖在单晶半导体区域的主表面上的栅极导体并且在栅极导体的暴露的壁上形成第一间隔物。 使用栅极导体和第一间隔物作为掩模，至少延伸区域注入到半导体区域中，并且形成从第一间隔物向外延伸的虚设间隔物。 使用虚拟间隔件作为掩模，半导体区域被蚀刻以形成具有从主表面向底表面向下延伸的至少基本上直的壁的凹槽，使得在底表面和壁之间限定大的角度。 随后，通过在凹槽内外延生长应力单晶半导体材料的区域来继续该过程。 然后去除虚拟间隔物，并且可以通过形成至少部分地设置在受应力的半导体材料区域中的晶体管的源极/漏极区域来完成晶体管。