公开(公告)号：US09006707B2

公开(公告)日：2015-04-14

申请号：US11712191

申请日：2007-02-28

Applicant: Mantu K. Hudait ,  Jack T. Kavalieros ,  Suman Datta ,  Marko Radosavljevic

Inventor： Mantu K. Hudait ,  Jack T. Kavalieros ,  Suman Datta ,  Marko Radosavljevic

IPC: H01L29/06 ,  H01L21/8238 ,  H01L21/8252 ,  B82Y10/00 ,  H01L21/8258 ,  H01L27/06 ,  H01L29/04

CPC classification number: H01L21/823807 ,  B82Y10/00 ,  H01L21/02381 ,  H01L21/02463 ,  H01L21/02546 ,  H01L21/8252 ,  H01L21/8258 ,  H01L27/0605 ,  H01L29/045 ,  H01L29/0665 ,  H01L29/0673 ,  H01L29/151 ,  H01L29/201 ,  H01L29/207 ,  H01L29/365

Abstract: In one embodiment, the present invention includes a method for forming a logic device, including forming an n-type semiconductor device over a silicon (Si) substrate that includes an indium gallium arsenide (InGaAs)-based stack including a first buffer layer, a second buffer layer formed over the first buffer layer, a first device layer formed over the second buffer layer. Further, the method may include forming a p-type semiconductor device over the Si substrate from the InGaAs-based stack and forming an isolation between the n-type semiconductor device and the p-type semiconductor device. Other embodiments are described and claimed.

Abstract translation: 在一个实施例中，本发明包括一种用于形成逻辑器件的方法，包括在硅（Si）衬底上形成n型半导体器件，该衬底包括基于砷化铟镓（InGaAs）的堆叠，其包括第一缓冲层， 形成在第一缓冲层上的第二缓冲层，形成在第二缓冲层上的第一器件层。 此外，该方法可以包括从基于InGaAs的叠层在Si衬底上形成p型半导体器件，并且在n型半导体器件和p型半导体器件之间形成隔离。 描述和要求保护其他实施例。

公开(公告)号：US20140209865A1

公开(公告)日：2014-07-31

申请号：US13997897

申请日：2011-12-28

Applicant: Ravi Pillarisetty ,  Benjamin Chu-Kung ,  Willy Rachmady ,  Van H. Le ,  Gilbert Dewey ,  Niloy Mukherjee ,  Matthew V. Metz ,  Han Wui Then ,  Marko Radosavljevic

Inventor： Ravi Pillarisetty ,  Benjamin Chu-Kung ,  Willy Rachmady ,  Van H. Le ,  Gilbert Dewey ,  Niloy Mukherjee ,  Matthew V. Metz ,  Han Wui Then ,  Marko Radosavljevic

IPC: H01L29/775 ,  H01L29/66

CPC classification number: H01L29/41791 ,  B82Y40/00 ,  B82Y99/00 ,  G11C7/02 ,  H01L23/485 ,  H01L23/535 ,  H01L27/115 ,  H01L29/0649 ,  H01L29/0673 ,  H01L29/0676 ,  H01L29/16 ,  H01L29/42392 ,  H01L29/66477 ,  H01L29/66795 ,  H01L29/775 ,  H01L29/785 ,  H01L29/78696 ,  H01L2029/7858 ,  H01L2924/0002 ,  Y10S977/762 ,  Y10S977/89 ,  H01L2924/00

Abstract: Embodiments of the present disclosure provide contact techniques and configurations for reducing parasitic resistance in nanowire transistors. In one embodiment, an apparatus includes a semiconductor substrate, an isolation layer formed on the semiconductor substrate, a channel layer including nanowire material formed on the isolation layer to provide a channel for a transistor, and a contact coupled with the channel layer, the contact being configured to surround, in at least one planar dimension, nanowire material of the channel layer and to provide a source terminal or drain terminal for the transistor.

Abstract translation: 本公开的实施例提供了用于减小纳米线晶体管中的寄生电阻的接触技术和配置。 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隔离层，包括在隔离层上形成的纳米线材料以提供晶体管沟道的沟道层，以及与沟道层耦合的接触点 被配置为在至少一个平面尺寸中围绕所述沟道层的纳米线材料并且为所述晶体管提供源极端子或漏极端子。

公开(公告)号：US20140175512A1

公开(公告)日：2014-06-26

申请号：US13722824

申请日：2012-12-20

Applicant: BENJAMIN CHU-KUNG ,  VAN LE ,  ROBERT CHAU ,  SANSAPTAK DASGUPTA ,  GILBERT DEWEY ,  NITI GOEL ,  JACK KAVALIEROS ,  MATTHEW METZ ,  NILOY MUKHERJEE ,  RAVI PILLARISETTY ,  WILLY RACHMADY ,  MARKO RADOSAVLJEVIC ,  HAN WUI THEN ,  NANCY ZELICK

Inventor： BENJAMIN CHU-KUNG ,  VAN LE ,  ROBERT CHAU ,  SANSAPTAK DASGUPTA ,  GILBERT DEWEY ,  NITI GOEL ,  JACK KAVALIEROS ,  MATTHEW METZ ,  NILOY MUKHERJEE ,  RAVI PILLARISETTY ,  WILLY RACHMADY ,  MARKO RADOSAVLJEVIC ,  HAN WUI THEN ,  NANCY ZELICK

IPC: H01L29/78

CPC classification number: H01L21/823821 ,  H01L27/0924 ,  H01L29/1054 ,  H01L29/165 ,  H01L29/785

Abstract: An embodiment uses a very thin layer nanostructure (e.g., a Si or SiGe fin) as a template to grow a crystalline, non-lattice matched, epitaxial (EPI) layer. In one embodiment the volume ratio between the nanostructure and EPI layer is such that the EPI layer is thicker than the nanostructure. In some embodiments a very thin bridge layer is included between the nanostructure and EPI. An embodiment includes a CMOS device where EPI layers covering fins (or that once covered fins) are oppositely polarized from one another. An embodiment includes a CMOS device where an EPI layer covering a fin (or that once covered a fin) is oppositely polarized from a bridge layer covering a fin (or that once covered a fin). Thus, various embodiments are disclosed from transferring defects from an EPI layer to a nanostructure (that is left present or removed). Other embodiments are described herein.

Abstract translation: 一个实施例使用非常薄的层纳米结构（例如，Si或SiGe鳍）作为模板来生长晶体，非晶格匹配的外延（EPI）层。 在一个实施方案中，纳米结构和EPI层之间的体积比使得EPI层比纳米结构厚。 在一些实施例中，在纳米结构和EPI之间包括非常薄的桥接层。 一个实施例包括一个CMOS器件，其中覆盖翅片（或一旦被覆盖的翅片）的EPI层彼此相反地极化。 一个实施例包括一个CMOS器件，其中覆盖翅片（或一旦被覆盖的翅片）的EPI层与覆盖翅片（或一旦被覆盖的翅片）的桥接层相反地偏振。 因此，从EPI层转移到纳米结构（剩下的存在或去除）的缺陷中公开了各种实施例。 本文描述了其它实施例。

公开(公告)号：US20140170998A1

公开(公告)日：2014-06-19

申请号：US13720852

申请日：2012-12-19

Applicant: Han Wui THEN ,  Sansaptak DASGUPTA ,  Marko RADOSAVLJEVIC ,  Benjamin CHU-KUNG ,  Sanaz K. GARDNER ,  Seung Hoon SUNG ,  Robert S. CHAU

Inventor： Han Wui THEN ,  Sansaptak DASGUPTA ,  Marko RADOSAVLJEVIC ,  Benjamin CHU-KUNG ,  Sanaz K. GARDNER ,  Seung Hoon SUNG ,  Robert S. CHAU

IPC: H01L29/80 ,  H01L29/66 ,  H01L29/20

CPC classification number: H01L29/2003 ,  H01L21/02164 ,  H01L21/02238 ,  H01L21/02255 ,  H01L21/0228 ,  H01L21/0254 ,  H01L21/283 ,  H01L21/28575 ,  H01L21/84 ,  H01L27/1203 ,  H01L29/0649 ,  H01L29/201 ,  H01L29/42356 ,  H01L29/66462 ,  H01L29/66795 ,  H01L29/7787 ,  H01L29/78 ,  H01L29/785 ,  H01L29/7851 ,  H01L29/802

Abstract: A III-N semiconductor channel is formed on a III-N transition layer formed on a (111) or (110) surface of a silicon template structure, such as a fin sidewall. In embodiments, the silicon fin has a width comparable to the III-N epitaxial film thicknesses for a more compliant seeding layer, permitting lower defect density and/or reduced epitaxial film thickness. In embodiments, a transition layer is GaN and the semiconductor channel comprises Indium (In) to increase a conduction band offset from the silicon fin. In other embodiments, the fin is sacrificial and either removed or oxidized, or otherwise converted into a dielectric structure during transistor fabrication. In certain embodiments employing a sacrificial fin, the III-N transition layer and semiconductor channel is substantially pure GaN, permitting a breakdown voltage higher than would be sustainable in the presence of the silicon fin.

公开(公告)号：US08710490B2

公开(公告)日：2014-04-29

申请号：US13629178

申请日：2012-09-27

Applicant: Ravi Pillarisetty ,  Niti Goel ,  Han Wui Then ,  Van H. Le ,  Willy Rachmady ,  Marko Radosavljevic ,  Gilbert Dewey ,  Benjamin Chu-Kung

Inventor： Ravi Pillarisetty ,  Niti Goel ,  Han Wui Then ,  Van H. Le ,  Willy Rachmady ,  Marko Radosavljevic ,  Gilbert Dewey ,  Benjamin Chu-Kung

IPC: H01L29/06 ,  H01L21/02

CPC classification number: H01L29/775 ,  B82Y10/00 ,  H01L21/28255 ,  H01L29/0673 ,  H01L29/1054 ,  H01L29/1079 ,  H01L29/1083 ,  H01L29/16 ,  H01L29/42392 ,  H01L29/66439 ,  H01L29/785 ,  H01L29/78696

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

Abstract translation: 描述具有底层寄生泄漏阻挡层的具有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第一缓冲层。 寄生泄漏屏障设置在第一缓冲层之上。 第二缓冲层设置在寄生泄漏屏障的上方。 锗活性层设置在第二缓冲层上方。 栅电极堆叠设置在锗活性层上方。 源极和漏极区域设置在栅极电极堆叠的任一侧上的寄生泄漏屏障之上。

公开(公告)号：US20140094223A1

公开(公告)日：2014-04-03

申请号：US13631514

申请日：2012-09-28

Applicant: Sansaptak DASGUPTA ,  Han Wui THEN ,  Niloy MUKHERJEE ,  Marko RADOSAVLJEVIC ,  Robert S. CHAU

Inventor： Sansaptak DASGUPTA ,  Han Wui THEN ,  Niloy MUKHERJEE ,  Marko RADOSAVLJEVIC ,  Robert S. CHAU

IPC: H01L29/205 ,  H01L29/66 ,  H01L29/20

CPC classification number: H01L29/7787 ,  H01L23/535 ,  H01L29/04 ,  H01L29/2003 ,  H01L29/205 ,  H01L29/4236 ,  H01L29/66431 ,  H01L29/66462 ,  H01L29/66545

Abstract: Embodiments include epitaxial semiconductor stacks for reduced defect densities in III-N device layers grown over non-III-N substrates, such as silicon substrates. In embodiments, a metamorphic buffer includes an AlxIn1-xN layer lattice matched to an overlying GaN device layers to reduce thermal mismatch induced defects. Such crystalline epitaxial semiconductor stacks may be device layers for HEMT or LED fabrication, for example. System on Chip (SoC) solutions integrating an RFIC with a PMIC using a transistor technology based on group III-nitrides (III-N) capable of achieving high Ft and also sufficiently high breakdown voltage (BV) to implement high voltage and/or high power circuits may be provided on the semiconductor stacks in a first area of the silicon substrate while silicon-based CMOS circuitry is provided in a second area of the substrate.

Abstract translation: 实施例包括用于在诸如硅衬底的非III-N衬底上生长的III-N器件层中的缺陷密度降低的外延半导体堆叠。 在实施例中，变质缓冲器包括与上覆GaN器件层匹配的Al x In 1-x N层晶格以减少热失配引起的缺陷。 这种结晶外延半导体叠层可以是用于例如HEMT或LED制造的器件层。 使用基于能够实现高Ft的III族氮化物（III-N）的晶体管技术并且还具有足够高的击穿电压（BV）来实现高电压和/或高电平的片上系统（SoC）解决方案集成RFIC与PMIC 电源电路可以设置在硅衬底的第一区域中的半导体堆叠上，而硅基CMOS电路设置在衬底的第二区域中。

公开(公告)号：US20140091361A1

公开(公告)日：2014-04-03

申请号：US13631417

申请日：2012-09-28

Applicant: Niti Goel ,  Ravi Pillarisetty ,  Niloy Mukherjee ,  Robert S. Chau ,  Willy Rachmady ,  Matthew V. Metz ,  Van H. Le ,  Jack T. Kavalieros ,  Marko Radosavljevic ,  Benjamin Chu-Kung ,  Gilbert Dewey ,  Seung Hoon Sung

Inventor： Niti Goel ,  Ravi Pillarisetty ,  Niloy Mukherjee ,  Robert S. Chau ,  Willy Rachmady ,  Matthew V. Metz ,  Van H. Le ,  Jack T. Kavalieros ,  Marko Radosavljevic ,  Benjamin Chu-Kung ,  Gilbert Dewey ,  Seung Hoon Sung

IPC: H01L27/092 ,  H01L21/8238

CPC classification number: H01L27/092 ,  H01L21/0245 ,  H01L21/02538 ,  H01L21/823807 ,  H01L21/845 ,  H01L27/1203 ,  H01L27/1211 ,  H01L29/0649 ,  H01L29/0673 ,  H01L29/1054 ,  H01L29/1083 ,  H01L29/267 ,  H01L29/42392 ,  H01L29/66469 ,  H01L29/66545 ,  H01L29/66795 ,  H01L29/775 ,  H01L29/7849 ,  H01L29/785 ,  H01L29/7851 ,  H01L29/78696

Abstract: An apparatus including a device including a channel material having a first lattice structure on a well of a well material having a matched lattice structure in a buffer material having a second lattice structure that is different than the first lattice structure. A method including forming a trench in a buffer material; forming an n-type well material in the trench, the n-type well material having a lattice structure that is different than a lattice structure of the buffer material; and forming an n-type transistor. A system including a computer including a processor including complimentary metal oxide semiconductor circuitry including an n-type transistor including a channel material, the channel material having a first lattice structure on a well disposed in a buffer material having a second lattice structure that is different than the first lattice structure, the n-type transistor coupled to a p-type transistor.

公开(公告)号：US08633471B2

公开(公告)日：2014-01-21

申请号：US13032777

申请日：2011-02-23

Applicant: Ravi Pillarisetty ,  Mantu Hudait ,  Marko Radosavljevic ,  Willy Rachmady ,  Gilbert Dewey ,  Jack Kavalieros

Inventor： Ravi Pillarisetty ,  Mantu Hudait ,  Marko Radosavljevic ,  Willy Rachmady ,  Gilbert Dewey ,  Jack Kavalieros

IPC: H01L29/12

CPC classification number: H01L29/155 ,  H01L21/823807 ,  H01L21/823892 ,  H01L29/0653 ,  H01L29/205 ,  H01L29/207 ,  H01L29/66431 ,  H01L29/66462 ,  H01L29/66795 ,  H01L29/7831

Abstract: Embodiments of an apparatus and methods for providing three-dimensional complementary metal oxide semiconductor devices comprising modulation doped transistors are generally described herein. Other embodiments may be described and claimed, which may include a modulation doped heterostructure, wherein the modulation doped heterostructure may comprise an active portion having a first bandgap and a delta doped portion having a second bandgap.

Abstract translation: 本文通常描述用于提供包括调制掺杂晶体管的三维互补金属氧化物半导体器件的装置和方法的实施例。 可以描述和要求保护其他实施例，其可以包括调制掺杂异质结构，其中调制掺杂异质结构可以包括具有第一带隙的有源部分和具有第二带隙的δ掺杂部分。

公开(公告)号：US20130320417A1

公开(公告)日：2013-12-05

申请号：US13997166

申请日：2011-12-27

Applicant: Niloy Mukherjee ,  Gilbert Dewey ,  Marko Radosavljevic ,  Niti Goel ,  Sanaz Kabehie ,  Matthew V. Metz ,  Robert S. Chau

Inventor： Niloy Mukherjee ,  Gilbert Dewey ,  Marko Radosavljevic ,  Niti Goel ,  Sanaz Kabehie ,  Matthew V. Metz ,  Robert S. Chau

IPC: H01L29/417 ,  H01L29/40

CPC classification number: H01L29/41725 ,  H01L21/2236 ,  H01L21/2254 ,  H01L21/26513 ,  H01L21/76814 ,  H01L29/401 ,  H01L29/41783 ,  H01L29/66628

Abstract: A die includes a semiconductive prominence and a surface-doped structure on the prominence. The surface-doped structure makes contact with contact metallization. The prominence may be a source- or drain contact for a transistor. Processes of making the surface-doped structure include wet- vapor- and implantation techniques, and include annealing techniques to drive in the surface doping to only near-surface depths in the semiconductive prominence.

Abstract translation: 芯片包括半导体突起和突出的表面掺杂结构。 表面掺杂结构与接触金属化接触。 突出可能是晶体管的源极或漏极接触。 制造表面掺杂结构的方法包括湿气和注入技术，并且包括退火技术以在表面掺杂仅在半导体突出中的近表面深度驱动。

公开(公告)号：US20130292698A1

公开(公告)日：2013-11-07

申请号：US13976840

申请日：2011-12-23

Applicant: Han Wui Then ,  Marko Radosavljevic ,  Uday Shah ,  Niloy Mukherjee ,  Ravi Pillarisetty ,  Benjamin Chu-Kung ,  Jack T. Kavalieros ,  Robert S. Chau

Inventor： Han Wui Then ,  Marko Radosavljevic ,  Uday Shah ,  Niloy Mukherjee ,  Ravi Pillarisetty ,  Benjamin Chu-Kung ,  Jack T. Kavalieros ,  Robert S. Chau

IPC: H01L29/423 ,  H01L29/40

CPC classification number: H01L29/7787 ,  H01L21/02241 ,  H01L21/02252 ,  H01L21/02255 ,  H01L21/02258 ,  H01L21/02458 ,  H01L21/0254 ,  H01L21/268 ,  H01L21/30604 ,  H01L21/30612 ,  H01L21/31111 ,  H01L29/2003 ,  H01L29/205 ,  H01L29/365 ,  H01L29/401 ,  H01L29/4236 ,  H01L29/512 ,  H01L29/518 ,  H01L29/66462

Abstract: III-N transistors with recessed gates. An epitaxial stack includes a doped III-N source/drain layer and a III-N etch stop layer disposed between a the source/drain layer and a III-N channel layer. An etch process, e.g., utilizing photochemical oxidation, selectively etches the source/drain layer over the etch stop layer. A gate electrode is disposed over the etch stop layer to form a recessed-gate III-N HEMT. At least a portion of the etch stop layer may be oxidized with a gate electrode over the oxidized etch stop layer for a recessed gate III-N MOS-HEMT including a III-N oxide. A high-k dielectric may be formed over the oxidized etch stop layer with a gate electrode over the high-k dielectric to form a recessed gate III-N MOS-HEMT having a composite gate dielectric stack.