公开(公告)号：US20140103397A1

公开(公告)日：2014-04-17

申请号：US14141648

申请日：2013-12-27

Applicant: Ravi Pillarisetty ,  Jack T. Kavalieros ,  Willy Rachmady ,  Uday Shah ,  Benjamin Chu-Kung ,  Marko Radosavljevic ,  Niloy Mukherjee ,  Gilbert Dewey ,  Been Y. Jin ,  Robert S. Chau

Inventor： Ravi Pillarisetty ,  Jack T. Kavalieros ,  Willy Rachmady ,  Uday Shah ,  Benjamin Chu-Kung ,  Marko Radosavljevic ,  Niloy Mukherjee ,  Gilbert Dewey ,  Been Y. Jin ,  Robert S. Chau

IPC: H01L29/66 ,  H01L29/78

CPC classification number: H01L29/775 ,  B82Y10/00 ,  H01L21/76 ,  H01L29/0653 ,  H01L29/1054 ,  H01L29/155 ,  H01L29/165 ,  H01L29/267 ,  H01L29/517 ,  H01L29/66431 ,  H01L29/66439 ,  H01L29/66477 ,  H01L29/66795 ,  H01L29/66977 ,  H01L29/7782 ,  H01L29/7849 ,  H01L29/785 ,  H01L29/7851

Abstract: Techniques are disclosed for forming a non-planar germanium quantum well structure. In particular, the quantum well structure can be implemented with group IV or III-V semiconductor materials and includes a germanium fin structure. In one example case, a non-planar quantum well device is provided, which includes a quantum well structure having a substrate (e.g. SiGe or GaAs buffer on silicon), a IV or III-V material barrier layer (e.g., SiGe or GaAs or AlGaAs), a doping layer (e.g., delta/modulation doped), and an undoped germanium quantum well layer. An undoped germanium fin structure is formed in the quantum well structure, and a top barrier layer deposited over the fin structure. A gate metal can be deposited across the fin structure. Drain/source regions can be formed at respective ends of the fin structure.

Abstract translation: 公开了用于形成非平面锗量子阱结构的技术。 特别地，量子阱结构可以用IV或III-V族半导体材料实现，并且包括锗鳍结构。 在一个示例性情况下，提供了非平面量子阱器件，其包括具有衬底（例如硅上的SiGe或GaAs缓冲器），IV或III-V材料阻挡层（例如，SiGe或GaAs或 AlGaAs），掺杂层（例如，掺杂Δ/调制）和未掺杂的锗量子阱层。 在量子阱结构中形成未掺杂的锗鳍结构，以及沉积在鳍结构上的顶部势垒层。 栅极金属可以跨鳍片结构沉积。 排水/源极区域可以形成在翅片结构的相应端部处。

公开(公告)号：US20140054548A1

公开(公告)日：2014-02-27

申请号：US14069880

申请日：2013-11-01

Applicant: Ravi Pillarisetty ,  Jack T. Kavalieros ,  Willy Rachmady ,  Uday Shah ,  Benjamin Chu-Kung ,  Marko Radosavljevic ,  Niloy Mukherjee ,  Gilbert Dewey ,  Been-Yih Jin ,  Robert S. Chau

Inventor： Ravi Pillarisetty ,  Jack T. Kavalieros ,  Willy Rachmady ,  Uday Shah ,  Benjamin Chu-Kung ,  Marko Radosavljevic ,  Niloy Mukherjee ,  Gilbert Dewey ,  Been-Yih Jin ,  Robert S. Chau

IPC: H01L29/775 ,  H01L21/76 ,  H01L29/66

CPC classification number: H01L29/775 ,  B82Y10/00 ,  H01L21/76 ,  H01L29/0653 ,  H01L29/1054 ,  H01L29/155 ,  H01L29/165 ,  H01L29/267 ,  H01L29/517 ,  H01L29/66431 ,  H01L29/66439 ,  H01L29/66477 ,  H01L29/66795 ,  H01L29/66977 ,  H01L29/7782 ,  H01L29/7849 ,  H01L29/785 ,  H01L29/7851

Abstract: Techniques are disclosed for forming a non-planar germanium quantum well structure. In particular, the quantum well structure can be implemented with group IV or III-V semiconductor materials and includes a germanium fin structure. In one example case, a non-planar quantum well device is provided, which includes a quantum well structure having a substrate (e.g. SiGe or GaAs buffer on silicon), a IV or III-V material barrier layer (e.g., SiGe or GaAs or AlGaAs), a doping layer (e.g., delta/modulation doped), and an undoped germanium quantum well layer. An undoped germanium fin structure is formed in the quantum well structure, and a top barrier layer deposited over the fin structure. A gate metal can be deposited across the fin structure. Drain/source regions can be formed at respective ends of the fin structure.

公开(公告)号：US20140035041A1

公开(公告)日：2014-02-06

申请号：US13997972

申请日：2011-12-28

Applicant: Ravi Pillarisetty ,  Charles C. Kuo ,  Han Wui Then ,  Gilbert Dewey ,  Willy Rachmady ,  Van H. Le ,  Marko Radosavljevic ,  Jack T. Kavalieros ,  Niloy Mukherjee

Inventor： Ravi Pillarisetty ,  Charles C. Kuo ,  Han Wui Then ,  Gilbert Dewey ,  Willy Rachmady ,  Van H. Le ,  Marko Radosavljevic ,  Jack T. Kavalieros ,  Niloy Mukherjee

IPC: H01L29/78 ,  H01L29/66 ,  G11C11/412

CPC classification number: H01L29/785 ,  G11C11/412 ,  H01L21/845 ,  H01L27/0688 ,  H01L27/1211 ,  H01L29/4232 ,  H01L29/42392 ,  H01L29/66795 ,  H01L29/78696

Abstract: Embodiments of the present disclosure provide techniques and configurations for stacking transistors of a memory device. In one embodiment, an apparatus includes a semiconductor substrate, a plurality of fin structures formed on the semiconductor substrate, wherein an individual fin structure of the plurality of fin structures includes a first isolation layer disposed on the semiconductor substrate, a first channel layer disposed on the first isolation layer, a second isolation layer disposed on the first channel layer, and a second channel layer disposed on the second isolation layer, and a gate terminal capacitively coupled with the first channel layer to control flow of electrical current through the first channel layer for a first transistor and capacitively coupled with the second channel layer to control flow of electrical current through the second channel layer for a second transistor. Other embodiments may be described and/or claimed.

Abstract translation: 本公开的实施例提供了用于堆叠存储器件的晶体管的技术和配置。 在一个实施例中，一种装置包括半导体衬底，形成在半导体衬底上的多个翅片结构，其中，多个翅片结构的单个翅片结构包括设置在半导体衬底上的第一隔离层， 第一隔离层，设置在第一沟道层上的第二隔离层和设置在第二隔离层上的第二沟道层，以及与第一沟道层电容耦合以控制通过第一沟道层的电流的栅极端子 用于第一晶体管，并与第二沟道层电容耦合，以控制通过第二沟道层的电流流向第二晶体管。 可以描述和/或要求保护其他实施例。

公开(公告)号：US20140027816A1

公开(公告)日：2014-01-30

申请号：US13560474

申请日：2012-07-27

Applicant: Stephen M. Cea ,  Anand S. Murthy ,  Glenn A. Glass ,  Daniel B. Aubertine ,  Tahir Ghani ,  Jack T. Kavalieros ,  Roza Kotlyar

Inventor： Stephen M. Cea ,  Anand S. Murthy ,  Glenn A. Glass ,  Daniel B. Aubertine ,  Tahir Ghani ,  Jack T. Kavalieros ,  Roza Kotlyar

IPC: H01L29/78 ,  H01L29/165

CPC classification number: H01L29/1054 ,  H01L21/76224 ,  H01L29/06 ,  H01L29/0649 ,  H01L29/0653 ,  H01L29/0847 ,  H01L29/16 ,  H01L29/161 ,  H01L29/165 ,  H01L29/66545 ,  H01L29/66795 ,  H01L29/66818 ,  H01L29/785 ,  H01L29/7851

Abstract: Techniques are disclosed for incorporating high mobility strained channels into fin-based transistors (e.g., FinFETs such as double-gate, trigate, etc), wherein a stress material is cladded onto the channel area of the fin. In one example embodiment, silicon germanium (SiGe) is cladded onto silicon fins to provide a desired stress, although other fin and cladding materials can be used. The techniques are compatible with typical process flows, and the cladding deposition can occur at a plurality of locations within the process flow. In some cases, the built-in stress from the cladding layer may be enhanced with a source/drain stressor that compresses both the fin and cladding layers in the channel. In some cases, an optional capping layer can be provided to improve the gate dielectric/semiconductor interface. In one such embodiment, silicon is provided over a SiGe cladding layer to improve the gate dielectric/semiconductor interface.

Abstract translation: 公开了用于将高迁移率应变通道结合到鳍状晶体管（例如，诸如双栅极，三相等等的FinFET）中的技术，其中应力材料被包覆到鳍的沟道区域上。 在一个示例性实施例中，硅锗（SiGe）被包覆到硅散热片上以提供期望的应力，尽管可以使用其它鳍和包层材料。 这些技术与典型的工艺流程兼容，并且包层沉积可以发生在工艺流程内的多个位置处。 在一些情况下，来自包覆层的内置应力可以通过压缩通道中的鳍和覆层的源极/漏极应力来增强。 在一些情况下，可以提供可选的封盖层以改善栅极电介质/半导体界面。 在一个这样的实施例中，硅被提供在SiGe包覆层上以改善栅极电介质/半导体界面。

公开(公告)号：US20140008700A1

公开(公告)日：2014-01-09

申请号：US13996502

申请日：2011-12-23

Applicant: Willy Rachmady ,  Van H. Le ,  Ravi Pillarisetty ,  Jack T. Kavalieros ,  Robert S. Chau ,  Harold W. Kennel

Inventor： Willy Rachmady ,  Van H. Le ,  Ravi Pillarisetty ,  Jack T. Kavalieros ,  Robert S. Chau ,  Harold W. Kennel

IPC: H01L29/06

CPC classification number: H01L29/1083 ,  B82Y10/00 ,  H01L21/28255 ,  H01L29/0603 ,  H01L29/0607 ,  H01L29/0673 ,  H01L29/1054 ,  H01L29/165 ,  H01L29/42392 ,  H01L29/66431 ,  H01L29/66439 ,  H01L29/66795 ,  H01L29/775 ,  H01L29/7781 ,  H01L29/7849 ,  H01L29/785 ,  H01L29/7853 ,  H01L29/78603 ,  H01L29/78684 ,  H01L29/78696

Abstract: Semiconductor devices having germanium active layers with underlying diffusion barrier layers are described. For example, a semiconductor device includes a gate electrode stack disposed above a substrate. A germanium active layer is disposed above the substrate, underneath the gate electrode stack. A diffusion barrier layer is disposed above the substrate, below the germanium active layer. A junction leakage suppression layer is disposed above the substrate, below the diffusion barrier layer. Source and drain regions are disposed above the junction leakage suppression layer, on either side of the gate electrode stack.

Abstract translation: 描述具有底层扩散阻挡层的锗活性层的半导体器件。 例如，半导体器件包括设置在衬底上方的栅极电极堆叠。 锗基活性层设置在基板上方，栅电极堆叠下方。 扩散阻挡层设置在基底上方，在锗活性层下方。 接点泄漏抑制层设置在基底上方，在扩散阻挡层下方。 源极和漏极区域设置在栅极电极堆叠的任一侧上的结泄漏抑制层上方。

公开(公告)号：US20130320455A1

公开(公告)日：2013-12-05

申请号：US13995418

申请日：2011-12-20

Applicant: Annalisa Cappellani ,  Stephen M. Cea ,  Tahir Ghani ,  Harry Gomez ,  Jack T. Kavalieros ,  Patrick H. Keys ,  Seiyon Kim ,  Kelin J. Kuhn ,  Aaron D. Lilak ,  Rafael Rios ,  Mayank Sahni

Inventor： Annalisa Cappellani ,  Stephen M. Cea ,  Tahir Ghani ,  Harry Gomez ,  Jack T. Kavalieros ,  Patrick H. Keys ,  Seiyon Kim ,  Kelin J. Kuhn ,  Aaron D. Lilak ,  Rafael Rios ,  Mayank Sahni

IPC: H01L29/06 ,  H01L21/762

CPC classification number: H01L29/66818 ,  B82Y10/00 ,  H01L21/762 ,  H01L21/76216 ,  H01L27/1203 ,  H01L29/0649 ,  H01L29/0653 ,  H01L29/0673 ,  H01L29/42392 ,  H01L29/66795 ,  H01L29/775 ,  H01L29/785

Abstract: Semiconductor devices with isolated body portions are described. For example, a semiconductor structure includes a semiconductor body disposed above a semiconductor substrate. The semiconductor body includes a channel region and a pair of source and drain regions on either side of the channel region. An isolation pedestal is disposed between the semiconductor body and the semiconductor substrate. A gate electrode stack at least partially surrounds a portion of the channel region of the semiconductor body.

Abstract translation: 描述具有隔离主体部分的半导体器件。 例如，半导体结构包括设置在半导体衬底之上的半导体本体。 半导体主体包括沟道区和沟道区两侧的一对源极和漏极区。 隔离基座设置在半导体本体和半导体衬底之间。 栅极电极堆叠至少部分地围绕半导体主体的沟道区域的一部分。

公开(公告)号：US20130234113A1

公开(公告)日：2013-09-12

申请号：US13870184

申请日：2013-04-25

Applicant: Prashant Majhi ,  Mantu K. Hudait ,  Jack T. Kavalieros ,  Ravi Pillarisetty ,  Marko Radosavljevic ,  Gilbert Dewey ,  Titash Rakshit ,  Willman Tsai

Inventor： Prashant Majhi ,  Mantu K. Hudait ,  Jack T. Kavalieros ,  Ravi Pillarisetty ,  Marko Radosavljevic ,  Gilbert Dewey ,  Titash Rakshit ,  Willman Tsai

IPC: H01L29/15

CPC classification number: H01L29/66431 ,  H01L21/28518 ,  H01L21/76802 ,  H01L21/76805 ,  H01L21/76897 ,  H01L29/152 ,  H01L29/165 ,  H01L29/41766 ,  H01L29/517 ,  H01L29/66462 ,  H01L29/7783 ,  H01L29/7848 ,  H01L29/802

Abstract: Embodiments described include straining transistor quantum well (QW) channel regions with metal source/drains, and conformal regrowth source/drains to impart a uni-axial strain in a MOS channel region. Removed portions of a channel layer may be filled with a junction material having a lattice spacing different than that of the channel material to causes a uni-axial strain in the channel, in addition to a bi-axial strain caused in the channel layer by a top barrier layer and a bottom buffer layer of the quantum well.

Abstract translation: 所描述的实施例包括具有金属源/漏极的应变晶体管量子阱（QW）沟道区，以及保形再生长源/漏极，以在MOS沟道区中赋予单轴应变。 沟道层的去除部分可以填充具有不同于沟道材料的晶格间隔的结合材料，以在通道中引起单轴应变，以及在沟道层中引起的双轴应变 顶部阻挡层和量子阱的底部缓冲层。

公开(公告)号：US08530884B2

公开(公告)日：2013-09-10

申请号：US13160886

申请日：2011-06-15

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

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

IPC: H01L29/06 ,  H01L31/072

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：US20130143385A1

公开(公告)日：2013-06-06

申请号：US13750393

申请日：2013-01-25

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

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

IPC: H01L21/8234

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.

公开(公告)号：US08350291B2

公开(公告)日：2013-01-08

申请号：US13248197

申请日：2011-09-29

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

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

IPC: H01L29/78

CPC classification number: H01L29/785 ,  H01L29/1054 ,  H01L29/66795

Abstract: Modulation-doped multi-gate devices are generally described. In one example, an apparatus includes a semiconductor substrate having a surface, one or more buffer films coupled to the surface of the semiconductor substrate, a first barrier film coupled to the one or more buffer films, a multi-gate fin coupled to the first barrier film, the multi-gate fin comprising a source region, a drain region, and a channel region of a multi-gate device wherein the channel region is disposed between the source region and the drain region, a spacer film coupled to the multi-gate fin, and a doped film coupled to the spacer film.

Abstract translation: 通常描述调制掺杂多栅极器件。 在一个示例中，设备包括具有表面的半导体衬底，耦合到半导体衬底的表面的一个或多个缓冲膜，耦合到该一个或多个缓冲膜的第一阻挡膜，耦合到第一 所述多栅极鳍片包括源极区域，漏极区域和多栅极器件的沟道区域，其中所述沟道区域设置在所述源极区域和所述漏极区域之间，间隔膜耦合到所述多栅极器件， 栅极鳍片以及耦合到间隔膜的掺杂膜。