公开(公告)号：US20130032783A1

公开(公告)日：2013-02-07

申请号：US13647952

申请日：2012-10-09

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

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

IPC: H01L29/78 ,  H01L29/06 ,  H01L21/336

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：US08294180B2

公开(公告)日：2012-10-23

申请号：US13038190

申请日：2011-03-01

Applicant: Brian S. Doyle ,  Been-Yih Jin ,  Jack T. Kavalieros ,  Suman Datta ,  Justin K. Brask ,  Robert S. Chau

Inventor： Brian S. Doyle ,  Been-Yih Jin ,  Jack T. Kavalieros ,  Suman Datta ,  Justin K. Brask ,  Robert S. Chau

IPC: H01L29/66

CPC classification number: H01L21/845 ,  H01L21/823807 ,  H01L21/823821 ,  H01L21/823878 ,  H01L27/1211 ,  H01L29/0673 ,  H01L29/068 ,  H01L29/1054 ,  H01L29/66439 ,  H01L29/66795 ,  H01L29/775 ,  H01L29/785

Abstract: Described herein are a device utilizing a gate electrode material with a single work function for both the pMOS and nMOS transistors where the magnitude of the transistor threshold voltages is modified by semiconductor band engineering and article made thereby. Further described herein are methods of fabricating a device formed of complementary (pMOS and nMOS) transistors having semiconductor channel regions which have been band gap engineered to achieve a low threshold voltage.

Abstract translation: 这里描述了利用具有单功函数的栅电极材料的器件，用于pMOS和nMOS晶体管，其中晶体管阈值电压的幅度由半导体带工程和由此制成的制品修改。 本文进一步描述的是制造由互补（pMOS和nMOS）晶体管形成的器件的方法，该晶体管具有被设计成能够实现低阈值电压的带隙的半导体沟道区。

公开(公告)号：US20120241818A1

公开(公告)日：2012-09-27

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: H01L29/78

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：US08258498B2

公开(公告)日：2012-09-04

申请号：US13017862

申请日：2011-01-31

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

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

IPC: H01L29/06 ,  H01L31/072 ,  H01L31/0336 ,  H01L31/0328 ,  H01L31/109

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：US20120193609A1

公开(公告)日：2012-08-02

申请号：US13442098

申请日：2012-04-09

Applicant: Ravi Pillarisetty ,  Been-Yin Jin ,  Benjamin Chu-Kung ,  Matthew V. Metz ,  Jack T. Kavalieros ,  Marko Radosavljevic ,  Roza Kotlyar ,  Willy Rachmady ,  Niloy Mukherjee ,  Gilbert Dewey ,  Robert S. Chau

Inventor： Ravi Pillarisetty ,  Been-Yin Jin ,  Benjamin Chu-Kung ,  Matthew V. Metz ,  Jack T. Kavalieros ,  Marko Radosavljevic ,  Roza Kotlyar ,  Willy Rachmady ,  Niloy Mukherjee ,  Gilbert Dewey ,  Robert S. Chau

IPC: H01L29/66

CPC classification number: H01L27/092 ,  H01L21/02532 ,  H01L21/02546 ,  H01L21/283 ,  H01L27/088 ,  H01L29/0653 ,  H01L29/155 ,  H01L29/165 ,  H01L29/267 ,  H01L29/517 ,  H01L29/66431 ,  H01L29/66522 ,  H01L29/66553 ,  H01L29/775 ,  H01L29/7782

Abstract: A quantum well transistor has a germanium quantum well channel region. A silicon-containing etch stop layer provides easy placement of a gate dielectric close to the channel. A group III-V barrier layer adds strain to the channel. Graded silicon germanium layers above and below the channel region improve performance. Multiple gate dielectric materials allow use of a high-k value gate dielectric.

Abstract translation: 量子阱晶体管具有锗量子阱沟道区域。 含硅蚀刻停止层提供了靠近通道的栅电介质的容易放置。 III-V族阻挡层增加了通道的应变。 通道区域上方和下方的分级硅锗层提高性能。 多栅极电介质材料允许使用高k值栅极电介质。

公开(公告)号：US08193523B2

公开(公告)日：2012-06-05

申请号：US12655468

申请日：2009-12-30

Applicant: Ravi Pillarisetty ,  Been-Yih Jin ,  Benjamin Chu-Kung ,  Matthew V. Metz ,  Jack T. Kavalieros ,  Marko Radosavljevic ,  Roza Kotlyar ,  Willy Rachmady ,  Niloy Mukherjee ,  Gilbert Dewey ,  Robert S. Chau

Inventor： Ravi Pillarisetty ,  Been-Yih Jin ,  Benjamin Chu-Kung ,  Matthew V. Metz ,  Jack T. Kavalieros ,  Marko Radosavljevic ,  Roza Kotlyar ,  Willy Rachmady ,  Niloy Mukherjee ,  Gilbert Dewey ,  Robert S. Chau

IPC: H01L29/08 ,  H01L29/12

CPC classification number: H01L27/092 ,  H01L21/02532 ,  H01L21/02546 ,  H01L21/283 ,  H01L27/088 ,  H01L29/0653 ,  H01L29/155 ,  H01L29/165 ,  H01L29/267 ,  H01L29/517 ,  H01L29/66431 ,  H01L29/66522 ,  H01L29/66553 ,  H01L29/775 ,  H01L29/7782

Abstract: A quantum well transistor has a germanium quantum well channel region. A silicon-containing etch stop layer provides easy placement of a gate dielectric close to the channel. A group III-V barrier layer adds strain to the channel. Graded silicon germanium layers above and below the channel region improve performance. Multiple gate dielectric materials allow use of a high-k value gate dielectric.

Abstract translation: 量子阱晶体管具有锗量子阱沟道区域。 含硅蚀刻停止层提供了靠近通道的栅电介质的容易放置。 III-V族阻挡层增加了通道的应变。 通道区域上方和下方的分级硅锗层提高性能。 多栅介电材料允许使用高k值栅极电介质。

公开(公告)号：US08183556B2

公开(公告)日：2012-05-22

申请号：US11305452

申请日：2005-12-15

Applicant: Suman Datt{dot over (a)} ,  Mantu K. Hudait ,  Mark L. Doczy ,  Jack T. Kavalieros ,  Majumdar Amlan ,  Justin K. Brask ,  Been-Yih Jin ,  Matthew V. Metz ,  Robert S. Chau

Inventor： Suman Datt{dot over (a)} ,  Mantu K. Hudait ,  Mark L. Doczy ,  Jack T. Kavalieros ,  Majumdar Amlan ,  Justin K. Brask ,  Been-Yih Jin ,  Matthew V. Metz ,  Robert S. Chau

IPC: H01L21/84

CPC classification number: H01L29/7784 ,  H01L21/02178 ,  H01L21/02381 ,  H01L21/02546 ,  H01L21/823807 ,  H01L21/823885 ,  H01L21/8252 ,  H01L27/0605 ,  H01L27/092 ,  H01L29/1054 ,  H01L29/122 ,  H01L29/15 ,  H01L29/157 ,  H01L29/205 ,  H01L29/41783 ,  H01L29/42364 ,  H01L29/42376 ,  H01L29/517 ,  H01L29/66462 ,  H01L29/66522 ,  H01L29/7783

Abstract: A CMOS device includes a PMOS transistor with a first quantum well structure and an NMOS device with a second quantum well structure. The PMOS and NMOS transistors are formed on a substrate.

Abstract translation: CMOS器件包括具有第一量子阱结构的PMOS晶体管和具有第二量子阱结构的NMOS器件。 PMOS和NMOS晶体管形成在衬底上。

公开(公告)号：US20120061649A1

公开(公告)日：2012-03-15

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: H01L29/12 ,  H01L21/336

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：US08120073B2

公开(公告)日：2012-02-21

申请号：US12317966

申请日：2008-12-31

Applicant: Titash Rakshit ,  Stephen M. Cea ,  Jack T Kavalieros ,  Ravi Pillarisetty

Inventor： Titash Rakshit ,  Stephen M. Cea ,  Jack T Kavalieros ,  Ravi Pillarisetty

IPC: H01L29/06 ,  H01L29/08

CPC classification number: H01L29/785 ,  H01L29/66795

Abstract: A trigate device having an extended metal gate electrode comprises a semiconductor body having a top surface and opposing sidewalls formed on a substrate, an isolation layer formed on the substrate and around the semiconductor body, wherein a portion of the semiconductor body remains exposed above the isolation layer, and a gate stack formed on the top surface and opposing sidewalls of the semiconductor body, wherein the gate stack extends a depth into the isolation layer, thereby causing a bottom surface of the gate stack to be below a top surface of the isolation layer.

Abstract translation: 具有延伸的金属栅电极的触发装置包括半导体本体，其具有形成在基板上的顶表面和相对的侧壁，形成在基板上并围绕半导体主体的隔离层，其中半导体主体的一部分保持暴露在隔离物的上方 层，以及形成在半导体主体的顶表面和相对侧壁上的栅极堆叠，其中栅极堆叠将深度延伸到隔离层中，从而使栅极堆叠的底表面在隔离层的顶表面下方 。

公开(公告)号：US08110458B2

公开(公告)日：2012-02-07

申请号：US12762585

申请日：2010-04-19

Applicant: Been-Yih Jin ,  Jack T. Kavalieros ,  Matthew V. Metz ,  Marko Radosavlievic ,  Robert S. Chau

Inventor： Been-Yih Jin ,  Jack T. Kavalieros ,  Matthew V. Metz ,  Marko Radosavlievic ,  Robert S. Chau

IPC: H01L21/336

CPC classification number: H01L29/0665 ,  B82Y10/00 ,  H01L29/0673 ,  H01L29/068 ,  H01L29/42392 ,  H01L29/66477 ,  H01L29/78684 ,  H01L29/78696

Abstract: In general, in one aspect, a method includes using the Germanium nanowire as building block for high performance logic, memory and low dimensional quantum effect devices. The Germanium nanowire channel and the SiGe anchoring regions are formed simultaneously through preferential Si oxidation of epitaxial Silicon Germanium epi layer. The placement of the germanium nanowires is accomplished using a Si fin as a template and the germanium nanowire is held on Si substrate through SiGe anchors created by masking the two ends of the fins. High dielectric constant gate oxide and work function metals wrap around the Germanium nanowire for gate-all-around electrostatic channel on/off control, while the Germanium nanowire provides high carrier mobility in the transistor channel region. The germanium nanowire transistors enable high performance, low voltage (low power consumption) operation of logic and memory devices.

Abstract translation: 通常，在一个方面，一种方法包括使用锗纳米线作为高性能逻辑，存储器和低维量子效应器件的构建块。 锗纳米线通道和SiGe锚定区域通过外延硅锗外延层的优先Si氧化同时形成。 使用Si翅片作为模板来实现锗纳米线的放置，并且锗纳米线通过掩蔽翅片的两端而形成的SiGe锚定件保持在Si衬底上。 高介电常数栅极氧化物和功函数金属缠绕在锗纳米线上，用于门极全静电通道开/关控制，而锗纳米线在晶体管沟道区域提供高载流子迁移率。 锗纳米线晶体管可实现逻辑和存储器件的高性能，低电压（低功耗）操作。