公开(公告)号：US07138320B2

公开(公告)日：2006-11-21

申请号：US10974232

申请日：2004-10-24

申请人： Ralf van Bentum ,  Scott Luning ,  Andy Wei

发明人： Ralf van Bentum ,  Scott Luning ,  Andy Wei

IPC分类号： H01L21/336

CPC分类号： H01L29/66628 ,  H01L29/66545 ,  H01L29/66553 ,  H01L29/66636 ,  H01L29/66742 ,  H01L29/7848 ,  H01L29/78621 ,  H01L29/78687

摘要： By recessing a semiconductor layer, preferably by locally oxidizing the semiconductor layer, a stress-inducing material and/or a dopant species may be introduced into the thinned semiconductor layer in the vicinity of a gate electrode structure by means of a subsequent epitaxial growth process. In particular, the stress-inducing material formed adjacent to the gate electrode structure exerts compressive or tensile stress, depending on the type of material deposited, thereby also enhancing the mobility of the charge carriers in a channel region of the transistor element.

摘要翻译： 通过优选通过半导体层的局部氧化来凹入半导体层，可以通过随后的外延生长工艺在栅极电极结构附近的薄化半导体层中引入应力诱导材料和/或掺杂物种类。 特别地，与栅电极结构相邻形成的应力诱导材料根据所沉积材料的类型施加压缩或拉伸应力，从而也增强了晶体管元件的沟道区中电荷载流子的迁移率。

公开(公告)号：US07176110B2

公开(公告)日：2007-02-13

申请号：US10862518

申请日：2004-06-07

申请人： Ralf van Bentum ,  Scott Luning ,  Thorsten Kammler

发明人： Ralf van Bentum ,  Scott Luning ,  Thorsten Kammler

IPC分类号： H01L21/20 ,  H01L21/36

CPC分类号： H01L29/66628 ,  H01L21/823418 ,  H01L21/823814 ,  H01L29/41783 ,  H01L29/665

摘要： The height of epitaxially grown semiconductor regions in extremely scaled semiconductor devices may be adjusted individually for different device regions in that two or more epitaxial growth steps may be carried out, wherein an epitaxial growth mask selectively suppresses the formation of a semiconductor region in a specified device region. In other embodiments, a common epitaxial growth process may be used for two or more different device regions and subsequently a selective oxidation process may be performed on selected device regions so as to precisely reduce the height of the previously epitaxially grown semiconductor regions in the selected areas.

摘要翻译： 可以对于不同的器件区域单独地调整极限比例的半导体器件中的外延生长的半导体区域的高度，因为可以执行两个或更多个外延生长步骤，其中外延生长掩模选择性地抑制在指定器件中形成半导体区域 地区。 在其它实施例中，公共外延生长工艺可以用于两个或更多个不同的器件区域，随后可以在所选择的器件区域上执行选择性氧化工艺，以便精确地降低所选区域中先前外延生长的半导体区域的高度 。

公开(公告)号：US07144786B2

公开(公告)日：2006-12-05

申请号：US10891996

申请日：2004-07-15

申请人： Ralf van Bentum ,  Scott Luning ,  Thorsten Kammler

发明人： Ralf van Bentum ,  Scott Luning ,  Thorsten Kammler

IPC分类号： H01L21/336

CPC分类号： H01L29/6653 ,  H01L29/665 ,  H01L29/6656 ,  H01L29/6659 ,  H01L29/66628 ,  H01L29/7833

摘要： By using sidewall spacers adjacent to a gate electrode structure both as an epitaxial growth mask and an implantation mask, the complexity of a conventional process flow for forming raised drain and source regions may be significantly reduced, thereby reducing production costs and enhancing yield by lowering the defect rate.

摘要翻译： 通过使用与栅极电极结构相邻的侧壁间隔作为外延生长掩模和注入掩模，可以显着降低形成隆起的漏极和源极区域的常规工艺流程的复杂性，从而降低生产成本并通过降低 缺陷率。

公开(公告)号：US20050095820A1

公开(公告)日：2005-05-05

申请号：US10862518

申请日：2004-06-07

申请人： Ralf van Bentum ,  Scott Luning ,  Thorsten Kammler

发明人： Ralf van Bentum ,  Scott Luning ,  Thorsten Kammler

IPC分类号： H01L21/336 ,  H01L21/8234 ,  H01L21/8238 ,  C30B1/00 ,  H01L21/20 ,  H01L21/36

CPC分类号： H01L29/66628 ,  H01L21/823418 ,  H01L21/823814 ,  H01L29/41783 ,  H01L29/665

摘要： The height of epitaxially grown semiconductor regions in extremely scaled semiconductor devices may be adjusted individually for different device regions in that two or more epitaxial growth steps may be carried out, wherein an epitaxial growth mask selectively suppresses the formation of a semiconductor region in a specified device region. In other embodiments, a common epitaxial growth process may be used for two or more different device regions and subsequently a selective oxidation process may be performed on selected device regions so as to precisely reduce the height of the previously epitaxially grown semiconductor regions in the selected areas.

摘要翻译： 可以对于不同的器件区域单独地调整极限比例的半导体器件中的外延生长的半导体区域的高度，因为可以执行两个或更多个外延生长步骤，其中外延生长掩模选择性地抑制在指定器件中形成半导体区域 地区。 在其它实施例中，公共外延生长工艺可以用于两个或更多个不同的器件区域，随后可以在所选择的器件区域上执行选择性氧化工艺，以便精确地降低所选区域中先前外延生长的半导体区域的高度 。

公开(公告)号：US20050095796A1

公开(公告)日：2005-05-05

申请号：US10891996

申请日：2004-07-15

申请人： Ralf van Bentum ,  Scott Luning ,  Thorsten Kammler

发明人： Ralf van Bentum ,  Scott Luning ,  Thorsten Kammler

IPC分类号： H01L21/336 ,  H01L29/78

CPC分类号： H01L29/6653 ,  H01L29/665 ,  H01L29/6656 ,  H01L29/6659 ,  H01L29/66628 ,  H01L29/7833

摘要： By using sidewall spacers adjacent to a gate electrode structure both as an epitaxial growth mask and an implantation mask, the complexity of a conventional process flow for forming raised drain and source regions may be significantly reduced, thereby reducing production costs and enhancing yield by lowering the defect rate.

摘要翻译： 通过使用与栅极电极结构相邻的侧壁间隔作为外延生长掩模和注入掩模，可以显着降低形成隆起的漏极和源极区域的常规工艺流程的复杂性，从而降低生产成本并通过降低 缺陷率。

公开(公告)号：US20050093075A1

公开(公告)日：2005-05-05

申请号：US10974232

申请日：2004-10-27

申请人： Ralf Bentum ,  Scott Luning ,  Andy Wei

发明人： Ralf Bentum ,  Scott Luning ,  Andy Wei

IPC分类号： H01L21/336 ,  H01L29/76 ,  H01L29/786

CPC分类号： H01L29/66628 ,  H01L29/66545 ,  H01L29/66553 ,  H01L29/66636 ,  H01L29/66742 ,  H01L29/7848 ,  H01L29/78621 ,  H01L29/78687

摘要： By recessing a semiconductor layer, preferably by locally oxidizing the semiconductor layer, a stress-inducing material and/or a dopant species may be introduced into the thinned semiconductor layer in the vicinity of a gate electrode structure by means of a subsequent epitaxial growth process. In particular, the stress-inducing material formed adjacent to the gate electrode structure exerts compressive or tensile stress, depending on the type of material deposited, thereby also enhancing the mobility of the charge carriers in a channel region of the transistor element.

摘要翻译： 通过优选通过半导体层的局部氧化来凹入半导体层，可以通过随后的外延生长工艺在栅极电极结构附近的薄化半导体层中引入应力诱导材料和/或掺杂物种类。 特别地，与栅电极结构相邻形成的应力诱导材料根据所沉积材料的类型施加压缩或拉伸应力，从而也增强了晶体管元件的沟道区中电荷载流子的迁移率。

公开(公告)号：US08193592B2

公开(公告)日：2012-06-05

申请号：US12904662

申请日：2010-10-14

申请人： Frank Bin Yang ,  Andrew M. Waite ,  Scott Luning

发明人： Frank Bin Yang ,  Andrew M. Waite ,  Scott Luning

IPC分类号： H01L29/76 ,  H01L29/94 ,  H01L31/062 ,  H01L31/113 ,  H01L31/119

CPC分类号： H01L21/26586 ,  H01L29/66659 ,  H01L29/7834 ,  H01L2924/0002 ,  Y10S438/931 ,  H01L2924/00

摘要： A method for fabricating a MOSFET (e.g., a PMOS FET) includes providing a semiconductor substrate having surface characterized by a (110) surface orientation or (110) sidewall surfaces, forming a gate structure on the surface, and forming a source extension and a drain extension in the semiconductor substrate asymmetrically positioned with respect to the gate structure. An ion implantation process is performed at a non-zero tilt angle. At least one spacer and the gate electrode mask a portion of the surface during the ion implantation process such that the source extension and drain extension are asymmetrically positioned with respect to the gate structure by an asymmetry measure.

摘要翻译： 一种用于制造MOSFET（例如，PMOS FET）的方法包括提供具有由（110）表面取向或（110）侧壁表面表征的表面的半导体衬底，在表面上形成栅极结构，并形成源延伸和 半导体衬底中的漏极延伸部相对于栅极结构非对称地定位。 以非零倾角进行离子注入工艺。 在离子注入过程期间，至少一个间隔物和栅电极掩盖表面的一部分，使得源极延伸和漏极延伸通过不对称度量相对于栅极结构不对称地定位。

公开(公告)号：US08148214B2

公开(公告)日：2012-04-03

申请号：US12360961

申请日：2009-01-28

申请人： Andrew M. Waite ,  Scott Luning

发明人： Andrew M. Waite ,  Scott Luning

IPC分类号： H01L21/00

CPC分类号： H01L29/6656 ,  H01L21/823807 ,  H01L21/823814 ,  H01L29/6653 ,  H01L29/66636 ,  H01L29/7848

摘要： A stressed field effect transistor and methods for its fabrication are provided. The field effect transistor comprises a silicon substrate with a gate insulator overlying the silicon substrate. A gate electrode overlies the gate insulator and defines a channel region in the silicon substrate underlying the gate electrode. A first silicon germanium region having a first thickness is embedded in the silicon substrate and contacts the channel region. A second silicon germanium region having a second thickness greater than the first thickness and spaced apart from the channel region is also embedded in the silicon substrate.

摘要翻译： 提供了一种应力场效应晶体管及其制造方法。 场效应晶体管包括具有覆盖硅衬底的栅极绝缘体的硅衬底。 栅电极覆盖栅极绝缘体，并且在栅电极下面的硅衬底中限定沟道区。 具有第一厚度的第一硅锗区域嵌入在硅衬底中并与沟道区域接触。 具有大于第一厚度并且与沟道区间隔开的第二厚度的第二硅锗区域也嵌入在硅衬底中。

公开(公告)号：US20110062498A1

公开(公告)日：2011-03-17

申请号：US12561685

申请日：2009-09-17

申请人： Frank (Bin) Yang ,  Johan W. Weijtmans ,  Scott Luning

发明人： Frank (Bin) Yang ,  Johan W. Weijtmans ,  Scott Luning

IPC分类号： H01L29/772 ,  H01L21/335

CPC分类号： H01L29/665 ,  H01L29/165 ,  H01L29/6656 ,  H01L29/66575 ,  H01L29/66636 ,  H01L29/78 ,  H01L29/7848

摘要： Semiconductor devices with embedded silicon germanium source/drain regions are formed with enhanced channel mobility, reduced contact resistance, and reduced silicide encroachment. Embodiments include embedded silicon germanium source/drain regions with a first portion having a relatively high germanium concentration, e.g., about 25 to about 35 at. %, an overlying second portion having a first layer with a relatively low germanium concentration, e.g., about 10 to about 20 at. %, and a second layer having a germanium concentration greater than that of the first layer. Embodiments include forming additional layers on the second layer, each odd numbered layer having relatively low germanium concentration, at. % germanium, and each even numbered layer having a relatively high germanium concentration. Embodiments include forming the first region at a thickness of about 400 Å to 28 about 800 Å, and the first and second layers at a thickness of about 30 Å to about 70 Å.

摘要翻译： 具有嵌入式硅锗源极/漏极区域的半导体器件形成具有增强的沟道迁移率，降低的接触电阻和减少的硅化物侵蚀。 实施例包括具有较高锗浓度的第一部分的嵌入式硅锗源/漏区，例如约25至约35at。 ％，上覆的第二部分具有具有相对低的锗浓度的第一层，例如约10至约20at。 ％，第二层的锗浓度大于第一层的浓度。 实施例包括在第二层上形成附加层，每个奇数层具有较低的锗浓度。 ％锗，并且每个偶数层具有较高的锗浓度。 实施例包括形成厚度为约400至28约800的第一区域，第一和第二层的厚度为约至大约为70埃。

公开(公告)号：US07893493B2

公开(公告)日：2011-02-22

申请号：US11456326

申请日：2006-07-10

申请人： Yun-Yu Wang ,  Linda Black ,  Judson R. Holt ,  Woo-Hyeong Lee ,  Scott Luning ,  Christopher D. Sheraw

发明人： Yun-Yu Wang ,  Linda Black ,  Judson R. Holt ,  Woo-Hyeong Lee ,  Scott Luning ,  Christopher D. Sheraw

IPC分类号： H01L27/12 ,  H01L21/302 ,  H01L21/461

CPC分类号： H01L21/02639 ,  H01L21/02381 ,  H01L21/02433 ,  H01L21/02532 ,  H01L21/02609 ,  H01L21/84

摘要： An intermediate hybrid surface orientation structure may include a silicon-on-insulator (SOI) substrate adhered to a bulk silicon substrate, the silicon of the SOI substrate having a different surface orientation than that of the bulk silicon substrate, and a reachthrough region extending through the SOI substrate to the bulk silicon substrate, the reachthrough region including a silicon nitride liner over a silicon oxide liner and a silicon epitaxially grown from the bulk silicon substrate, the epitaxially grown silicon extending into an undercut into the silicon oxide liner under the silicon nitride liner, wherein the epitaxially grown silicon is substantially stacking fault free.

摘要翻译： 中间混合表面取向结构可以包括粘附到体硅衬底上的绝缘体上硅（SOI）衬底，SOI衬底的硅具有与体硅衬底不同的表面取向，并且穿透区域延伸穿过 SOI衬底到体硅衬底，穿透区域包括在氧化硅衬底上的氮化硅衬垫和从体硅衬底外延生长的硅，外延生长的硅延伸到底切到氮化硅之下的氧化硅衬底中 衬垫，其中外延生长的硅基本上是无层错的。