公开(公告)号：US09337307B2

公开(公告)日：2016-05-10

申请号：US12949696

申请日：2010-11-18

Applicant: Justin K. Brask ,  Robert S. Chau ,  Suman Datta ,  Mark L. Doczy ,  Brian S. Doyle ,  Jack T. Kavalieros ,  Amlan Majumdar ,  Matthew V. Metz ,  Marko Radosavljevic

Inventor： Justin K. Brask ,  Robert S. Chau ,  Suman Datta ,  Mark L. Doczy ,  Brian S. Doyle ,  Jack T. Kavalieros ,  Amlan Majumdar ,  Matthew V. Metz ,  Marko Radosavljevic

IPC: H01L29/66 ,  H01L29/423 ,  H01L29/78

CPC classification number: H01L29/7848 ,  H01L29/0649 ,  H01L29/0847 ,  H01L29/1033 ,  H01L29/161 ,  H01L29/165 ,  H01L29/24 ,  H01L29/267 ,  H01L29/4236 ,  H01L29/42376 ,  H01L29/4966 ,  H01L29/66545 ,  H01L29/66621 ,  H01L29/66628 ,  H01L29/66636 ,  H01L29/66818 ,  H01L29/7834 ,  H01L29/7838 ,  H01L29/785 ,  H04B1/3827 ,  Y10S438/926

Abstract: A method of fabricating a MOS transistor having a thinned channel region is described. The channel region is etched following removal of a dummy gate. The source and drain regions have relatively low resistance with the process.

公开(公告)号：US09159835B2

公开(公告)日：2015-10-13

申请号：US13488238

申请日：2012-06-04

Applicant: Jack T. Kavalieros ,  Nancy Zelick ,  Been-Yih Jin ,  Markus Kuhn ,  Stephen M. Cea

Inventor： Jack T. Kavalieros ,  Nancy Zelick ,  Been-Yih Jin ,  Markus Kuhn ,  Stephen M. Cea

IPC: H01L29/66 ,  H01L29/78

CPC classification number: H01L29/1054 ,  H01L29/161 ,  H01L29/165 ,  H01L29/66795 ,  H01L29/66818 ,  H01L29/7842 ,  H01L29/7849 ,  H01L29/785 ,  H01L29/7851 ,  H01L29/7854

Abstract: Techniques are disclosed for enabling multi-sided condensation of semiconductor fins. The techniques can be employed, for instance, in fabricating fin-based transistors. In one example case, a strain layer is provided on a bulk substrate. The strain layer is associated with a critical thickness that is dependent on a component of the strain layer, and the strain layer has a thickness lower than or equal to the critical thickness. A fin is formed in the substrate and strain layer, such that the fin includes a substrate portion and a strain layer portion. The fin is oxidized to condense the strain layer portion of the fin, so that a concentration of the component in the strain layer changes from a pre-condensation concentration to a higher post-condensation concentration, thereby causing the critical thickness to be exceeded.

Abstract translation: 公开了用于实现半导体翅片的多面冷凝的技术。 这些技术可以用于例如制造基于鳍的晶体管。 在一个示例的情况下，在体基板上设置应变层。 应变层与取决于应变层的部件的临界厚度相关联，并且应变层具有低于或等于临界厚度的厚度。 在基板和应变层中形成翅片，使得翅片包括基板部分和应变层部分。 将翅片氧化以冷凝翅片的应变层部分，使得应变层中的组分的浓度从预凝结浓度变为较高的缩合后浓度，从而超过临界厚度。

公开(公告)号：US09136343B2

公开(公告)日：2015-09-15

申请号：US13749139

申请日：2013-01-24

Applicant: Ravi Pillarisetty ,  Willy Rachmady ,  Van H. Le ,  Seung Hoon Sung ,  Jessica S. Kachian ,  Jack T. Kavalieros ,  Han Wui Then ,  Gilbert Dewey ,  Marko Radosavljevic ,  Benjamin Chu-Kung ,  Niloy Mukherjee

Inventor： Ravi Pillarisetty ,  Willy Rachmady ,  Van H. Le ,  Seung Hoon Sung ,  Jessica S. Kachian ,  Jack T. Kavalieros ,  Han Wui Then ,  Gilbert Dewey ,  Marko Radosavljevic ,  Benjamin Chu-Kung ,  Niloy Mukherjee

IPC: H01L29/66 ,  H01L29/423 ,  H01L29/78 ,  H01L29/786

CPC classification number: H01L29/78609 ,  H01L29/0653 ,  H01L29/0673 ,  H01L29/0676 ,  H01L29/165 ,  H01L29/205 ,  H01L29/42392 ,  H01L29/66742 ,  H01L29/785 ,  H01L29/78606 ,  H01L29/78618 ,  H01L29/78681 ,  H01L29/78684 ,  H01L29/78696

Abstract: Deep gate-all-around semiconductor devices having germanium or group III-V active layers are described. For example, a non-planar semiconductor device includes a hetero-structure disposed above a substrate. The hetero-structure includes a hetero-junction between an upper layer and a lower layer of differing composition. An active layer is disposed above the hetero-structure and has a composition different from the upper and lower layers of the hetero-structure. A gate electrode stack is disposed on and completely surrounds a channel region of the active layer, and is disposed in a trench in the upper layer and at least partially in the lower layer of the hetero-structure. Source and drain regions are disposed in the active layer and in the upper layer, but not in the lower layer, on either side of the gate electrode stack.

Abstract translation: 描述具有锗或III-V族有源层的深栅极全面半导体器件。 例如，非平面半导体器件包括设置在衬底上的异质结构。 异质结构包括不同组成的上层和下层之间的异质结。 有源层设置在杂结构上方，并且具有与异质结构的上层和下层不同的组成。 栅电极堆叠设置在有源层的沟道区上并完全包围有源层的沟道区，并且设置在上层中的沟槽中，并且至少部分地设置在异质结构的下层中。 源极和漏极区域设置在栅电极堆叠的任一侧上的有源层和上层中，而不是在下层中。

公开(公告)号：US08987794B2

公开(公告)日：2015-03-24

申请号：US13997118

申请日：2011-12-23

Applicant: Willy Rachmady ,  Ravi Pillarisetty ,  Van H. Le ,  Jack T. Kavalieros ,  Robert S. Chau ,  Jessica S. Kachian

Inventor： Willy Rachmady ,  Ravi Pillarisetty ,  Van H. Le ,  Jack T. Kavalieros ,  Robert S. Chau ,  Jessica S. Kachian

IPC: H01L21/336 ,  H01L29/06 ,  H01L29/423 ,  H01L29/786 ,  H01L29/78 ,  H01L29/165 ,  H01L29/66

CPC classification number: H01L29/7848 ,  H01L29/045 ,  H01L29/0669 ,  H01L29/0673 ,  H01L29/1033 ,  H01L29/165 ,  H01L29/42392 ,  H01L29/66795 ,  H01L29/775 ,  H01L29/785 ,  H01L29/7851 ,  H01L29/78618 ,  H01L29/78696 ,  H01L2029/7858

Abstract: A non-planar gate all-around device and method of fabrication thereby are described. In one embodiment, the device includes a substrate having a top surface with a first lattice constant. Embedded epi source and drain regions are formed on the top surface of the substrate. The embedded epi source and drain regions have a second lattice constant that is different from the first lattice constant. Channel nanowires having a third lattice are formed between and are coupled to the embedded epi source and drain regions. In an embodiment, the second lattice constant and the third lattice constant are different from the first lattice constant. The channel nanowires include a bottom-most channel nanowire and a bottom gate isolation is formed on the top surface of the substrate under the bottom-most channel nanowire. A gate dielectric layer is formed on and all-around each channel nanowire. A gate electrode is formed on the gate dielectric layer and surrounding each channel nanowire.

Abstract translation: 描述了非平面栅极全面器件及其制造方法。 在一个实施例中，该器件包括具有第一晶格常数的顶表面的衬底。 嵌入的epi源极和漏极区域形成在衬底的顶表面上。 嵌入的epi源极和漏极区具有不同于第一晶格常数的第二晶格常数。 具有第三晶格的沟道纳米线形成在嵌入的epi源极和漏极区之间并耦合到嵌入的epi源极和漏极区。 在一个实施例中，第二晶格常数和第三晶格常数不同于第一晶格常数。 通道纳米线包括最底部的沟道纳米线，并且在最底部的沟道纳米线下方的衬底的顶表面上形成底栅隔离。 在每个通道纳米线上形成栅极电介质层。 在栅极电介质层上形成栅电极并围绕每个沟道纳米线。

公开(公告)号：US08901537B2

公开(公告)日：2014-12-02

申请号：US12975278

申请日：2010-12-21

Applicant: Anand S. Murthy ,  Glenn A. Glass ,  Tahir Ghani ,  Ravi Pillarisetty ,  Niloy Mukherjee ,  Jack T. Kavalieros ,  Roza Kotlyar ,  Willy Rachmady ,  Mark Y. Liu

Inventor： Anand S. Murthy ,  Glenn A. Glass ,  Tahir Ghani ,  Ravi Pillarisetty ,  Niloy Mukherjee ,  Jack T. Kavalieros ,  Roza Kotlyar ,  Willy Rachmady ,  Mark Y. Liu

IPC: H01L21/285 ,  H01L29/165 ,  H01L29/167 ,  H01L29/49 ,  H01L29/78 ,  H01L29/66 ,  H01L29/45

CPC classification number: H01L29/0676 ,  H01L21/02532 ,  H01L21/28512 ,  H01L21/28525 ,  H01L21/3215 ,  H01L21/76831 ,  H01L23/535 ,  H01L27/092 ,  H01L27/0924 ,  H01L29/0615 ,  H01L29/0847 ,  H01L29/086 ,  H01L29/165 ,  H01L29/167 ,  H01L29/36 ,  H01L29/41791 ,  H01L29/42392 ,  H01L29/45 ,  H01L29/456 ,  H01L29/4966 ,  H01L29/66477 ,  H01L29/66545 ,  H01L29/6659 ,  H01L29/66628 ,  H01L29/66636 ,  H01L29/66681 ,  H01L29/66931 ,  H01L29/7785 ,  H01L29/78 ,  H01L29/7816 ,  H01L29/7833 ,  H01L29/7848 ,  H01L29/785 ,  H01L29/7851

Abstract: Techniques are disclosed for forming transistor devices having source and drain regions with high concentrations of boron doped germanium. In some embodiments, an in situ boron doped germanium, or alternatively, boron doped silicon germanium capped with a heavily boron doped germanium layer, are provided using selective epitaxial deposition in the source and drain regions and their corresponding tip regions. In some such cases, germanium concentration can be, for example, in excess of 50 atomic % and up to 100 atomic %, and the boron concentration can be, for instance, in excess of 1E20 cm−3. A buffer providing graded germanium and/or boron concentrations can be used to better interface disparate layers. The concentration of boron doped in the germanium at the epi-metal interface effectively lowers parasitic resistance without degrading tip abruptness. The techniques can be embodied, for instance, in planar or non-planar transistor devices.

Abstract translation: 公开了用于形成具有高掺杂硼掺杂锗的源区和漏区的晶体管器件的技术。 在一些实施例中，使用在源极和漏极区域及其对应的尖端区域中的选择性外延沉积来提供原位硼掺杂锗或者掺杂有硼掺杂锗层的硼掺杂硅锗。 在一些这样的情况下，锗浓度可以例如超过50原子％且高达100原子％，并且硼浓度可以例如超过1E20cm-3。 可以使用提供梯度锗和/或硼浓度的缓冲液来更好地接合不同的层。 锗在外延金属界面掺杂的硼的浓度有效地降低了寄生电阻而不降低尖端突然性。 这些技术可以例如在平面或非平面晶体管器件中实现。

公开(公告)号：US08846480B2

公开(公告)日：2014-09-30

申请号：US13773558

申请日：2013-02-21

Applicant: Ravi Pillarisetty ,  Mantu Hudait ,  Marko Radosavljevic ,  Gilbert Dewey ,  Jack T. Kavalieros

Inventor： Ravi Pillarisetty ,  Mantu Hudait ,  Marko Radosavljevic ,  Gilbert Dewey ,  Jack T. Kavalieros

IPC: H01L29/66 ,  H01L29/10 ,  H01L29/205

CPC classification number: H01L29/66522 ,  H01L29/1054 ,  H01L29/122 ,  H01L29/205 ,  H01L29/66477

Abstract: A surface channel transistor is provided in a semiconductive device. The surface channel transistor is either a PMOS or an NMOS device. Epitaxial layers are disposed above the surface channel transistor to cause an increased bandgap phenomenon nearer the surface of the device. A process of forming the surface channel transistor includes grading the epitaxial layers.

Abstract translation: 表面沟道晶体管设置在半导体器件中。 表面沟道晶体管是PMOS或NMOS器件。 外延层设置在表面沟道晶体管的上方，导致更接近器件表面的带隙现象增加。 形成表面沟道晶体管的工艺包括对外延层进行分级。

公开(公告)号：US08841180B2

公开(公告)日：2014-09-23

申请号：US13971716

申请日：2013-08-20

Applicant: Suman Datta ,  Jack T. Kavalieros ,  Been-Yih Jin

Inventor： Suman Datta ,  Jack T. Kavalieros ,  Been-Yih Jin

IPC: H01L29/74 ,  H01L21/337 ,  H01L29/66 ,  H01L29/205 ,  H01L29/78 ,  H01L29/10 ,  H01L29/201

CPC classification number: H01L29/1033 ,  H01L29/0673 ,  H01L29/201 ,  H01L29/205 ,  H01L29/41725 ,  H01L29/66431 ,  H01L29/66545 ,  H01L29/66628 ,  H01L29/66636 ,  H01L29/66787 ,  H01L29/775 ,  H01L29/78 ,  H01L29/785

Abstract: A method to form a strain-inducing semiconductor region is described. In one embodiment, formation of a strain-inducing semiconductor region laterally adjacent to a crystalline substrate results in a uniaxial strain imparted to the crystalline substrate, providing a strained crystalline substrate. In another embodiment, a semiconductor region with a crystalline lattice of one or more species of charge-neutral lattice-forming atoms imparts a strain to a crystalline substrate, wherein the lattice constant of the semiconductor region is different from that of the crystalline substrate, and wherein all species of charge-neutral lattice-forming atoms of the semiconductor region are contained in the crystalline substrate.

Abstract translation: 描述形成应变诱导半导体区域的方法。 在一个实施方案中，形成横向邻近晶体衬底的应变诱导半导体区域导致赋予晶体衬底的单轴应变，从而提供应变的晶体衬底。 在另一个实施方案中，具有一种或多种电荷 - 中性晶格形成原子的晶格的半导体区域向晶体衬底赋予应变，其中半导体区域的晶格常数与晶体衬底的晶格常数不同，以及 其中所述半导体区域的电荷 - 中性晶格形成原子的所有种类都包含在所述晶体衬底中。

公开(公告)号：US20140239400A1

公开(公告)日：2014-08-28

申请号：US14273377

申请日：2014-05-08

Applicant: Titash Rakshit ,  Martin Giles ,  Ravi Pillarisetty ,  Jack T. Kavalieros

Inventor： Titash Rakshit ,  Martin Giles ,  Ravi Pillarisetty ,  Jack T. Kavalieros

IPC: H01L29/78 ,  H01L27/12

CPC classification number: H01L29/7845 ,  H01L21/8234 ,  H01L21/823807 ,  H01L21/823821 ,  H01L21/823828 ,  H01L21/823842 ,  H01L21/823878 ,  H01L21/845 ,  H01L27/0924 ,  H01L27/1211 ,  H01L29/0653 ,  H01L29/495 ,  H01L29/66795 ,  H01L29/7831 ,  H01L29/785

Abstract: Embodiments relate to an improved tri-gate device having gate metal fills, providing compressive or tensile stress upon at least a portion of the tri-gate transistor, thereby increasing the carrier mobility and operating frequency. Embodiments also contemplate method for use of the improved tri-gate device.

Abstract translation: 实施例涉及具有栅极金属填充物的改进的三栅极器件，在三栅极晶体管的至少一部分上提供压缩或拉伸应力，由此增加载流子迁移率和工作频率。 实施例还考虑了使用改进的三栅极器件的方法。

公开(公告)号：US20140225065A1

公开(公告)日：2014-08-14

申请号：US13997118

申请日：2011-12-23

Applicant: Willy Rachmady ,  Ravi Pillarisetty ,  Van H. Le ,  Jack T. Kavalieros ,  Robert S. Chau ,  Jessica S. Kachian

Inventor： Willy Rachmady ,  Ravi Pillarisetty ,  Van H. Le ,  Jack T. Kavalieros ,  Robert S. Chau ,  Jessica S. Kachian

IPC: H01L29/06 ,  H01L29/78 ,  H01L29/66

CPC classification number: H01L29/7848 ,  H01L29/045 ,  H01L29/0669 ,  H01L29/0673 ,  H01L29/1033 ,  H01L29/165 ,  H01L29/42392 ,  H01L29/66795 ,  H01L29/775 ,  H01L29/785 ,  H01L29/7851 ,  H01L29/78618 ,  H01L29/78696 ,  H01L2029/7858

Abstract: A non-planar gate all-around device and method of fabrication thereby are described. In one embodiment, the device includes a substrate having a top surface with a first lattice constant. Embedded epi source and drain regions are formed on the top surface of the substrate. The embedded epi source and drain regions have a second lattice constant that is different from the first lattice constant. Channel nanowires having a third lattice are formed between and are coupled to the embedded epi source and drain regions. In an embodiment, the second lattice constant and the third lattice constant are different from the first lattice constant. The channel nanowires include a bottom-most channel nanowire and a bottom gate isolation is formed on the top surface of the substrate under the bottom-most channel nanowire. A gate dielectric layer is formed on and all-around each channel nanowire. A gate electrode is formed on the gate dielectric layer and surrounding each channel nanowire.

Abstract translation: 描述了非平面栅极全面器件及其制造方法。 在一个实施例中，该器件包括具有第一晶格常数的顶表面的衬底。 嵌入的epi源极和漏极区域形成在衬底的顶表面上。 嵌入的epi源极和漏极区具有不同于第一晶格常数的第二晶格常数。 具有第三晶格的沟道纳米线形成在嵌入的epi源极和漏极区之间并耦合到嵌入的epi源极和漏极区。 在一个实施例中，第二晶格常数和第三晶格常数不同于第一晶格常数。 通道纳米线包括最底部的沟道纳米线，并且在最底部的沟道纳米线下方的衬底的顶表面上形成底栅隔离。 在每个通道纳米线上形成栅极电介质层。 在栅极电介质层上形成栅电极并围绕每个沟道纳米线。

公开(公告)号：US20140203327A1

公开(公告)日：2014-07-24

申请号：US13749139

申请日：2013-01-24

Applicant: Ravi Pillarisetty ,  Willy Rachmady ,  Van H. Le ,  Seung Hoon Sung ,  Jessica S. Kachian ,  Jack T. Kavalieros ,  Han Wui Then ,  Gilbert Dewey ,  Marko Radosavljevic ,  Benjamin Chu-Kung ,  Niloy Mukherjee

Inventor： Ravi Pillarisetty ,  Willy Rachmady ,  Van H. Le ,  Seung Hoon Sung ,  Jessica S. Kachian ,  Jack T. Kavalieros ,  Han Wui Then ,  Gilbert Dewey ,  Marko Radosavljevic ,  Benjamin Chu-Kung ,  Niloy Mukherjee

IPC: H01L29/78 ,  H01L29/66

CPC classification number: H01L29/78609 ,  H01L29/0653 ,  H01L29/0673 ,  H01L29/0676 ,  H01L29/165 ,  H01L29/205 ,  H01L29/42392 ,  H01L29/66742 ,  H01L29/785 ,  H01L29/78606 ,  H01L29/78618 ,  H01L29/78681 ,  H01L29/78684 ,  H01L29/78696

Abstract: Deep gate-all-around semiconductor devices having germanium or group III-V active layers are described. For example, a non-planar semiconductor device includes a hetero-structure disposed above a substrate. The hetero-structure includes a hetero-junction between an upper layer and a lower layer of differing composition. An active layer is disposed above the hetero-structure and has a composition different from the upper and lower layers of the hetero-structure. A gate electrode stack is disposed on and completely surrounds a channel region of the active layer, and is disposed in a trench in the upper layer and at least partially in the lower layer of the hetero-structure. Source and drain regions are disposed in the active layer and in the upper layer, but not in the lower layer, on either side of the gate electrode stack.

Abstract translation: 描述具有锗或III-V族有源层的深栅极全面半导体器件。 例如，非平面半导体器件包括设置在衬底上的异质结构。 异质结构包括不同组成的上层和下层之间的异质结。 有源层设置在杂结构上方，并且具有与异质结构的上层和下层不同的组成。 栅电极堆叠设置在有源层的沟道区上并完全包围有源层的沟道区，并且设置在上层中的沟槽中，并且至少部分地设置在异质结构的下层中。 源极和漏极区域设置在栅电极堆叠的任一侧上的有源层和上层中，而不是在下层中。