公开(公告)号：US09666708B2

公开(公告)日：2017-05-30

申请号：US15120705

申请日：2014-03-26

Applicant: INTEL CORPORATION

Inventor： Han Wui Then ,  Benjamin Chu-Kung ,  Sansaptak Dasgupta ,  Robert S. Chau ,  Seung Hoon Sung ,  Ravi Pillarisetty ,  Marko Radosavljevic

IPC: H01L29/778 ,  H01L29/66 ,  H01L29/20 ,  H01L21/8252 ,  H01L27/06 ,  H01L21/02 ,  H01L21/033 ,  H01L29/08 ,  H01L29/205

CPC classification number: H01L29/7787 ,  H01L21/0254 ,  H01L21/02636 ,  H01L21/02639 ,  H01L21/02647 ,  H01L21/0332 ,  H01L21/8252 ,  H01L27/0605 ,  H01L29/0649 ,  H01L29/0847 ,  H01L29/2003 ,  H01L29/205 ,  H01L29/66431 ,  H01L29/66446 ,  H01L29/66462 ,  H01L29/7783 ,  H01L29/7786

Abstract: Techniques related to III-N transistors having enhanced breakdown voltage, systems incorporating such transistors, and methods for forming them are discussed. Such transistors include a hardmask having an opening over a substrate, a source, a drain, and a channel between the source and drain, and a portion of the source or the drain disposed over the opening of the hardmask.

公开(公告)号：US09640646B2

公开(公告)日：2017-05-02

申请号：US14912887

申请日：2013-09-27

Applicant: Intel Corporation

Inventor： Gilbert Dewey ,  Marko Radosavljevic ,  Ravi Pillarisetty ,  Matthew V. Metz

IPC: H01L29/775 ,  B82Y10/00 ,  B82Y40/00 ,  H01L29/423 ,  H01L29/51 ,  H01L29/66 ,  H01L29/06 ,  H01L29/15 ,  H01L29/205 ,  H01L29/49 ,  H01L29/786

CPC classification number: H01L29/775 ,  B82Y10/00 ,  B82Y40/00 ,  H01L29/0673 ,  H01L29/155 ,  H01L29/205 ,  H01L29/42364 ,  H01L29/42392 ,  H01L29/4908 ,  H01L29/517 ,  H01L29/518 ,  H01L29/66469 ,  H01L29/78681 ,  H01L29/78696

Abstract: Semiconductor devices having group III-V material active regions and graded gate dielectrics and methods of fabricating such devices are described. In an example, a semiconductor device includes a group III-V material channel region disposed above a substrate. A gate stack is disposed on the group III-V material channel region. The gate stack includes a graded high-k gate dielectric layer disposed directly between the III-V material channel region and a gate electrode. The graded high-k gate dielectric layer has a lower dielectric constant proximate the III-V material channel region and has a higher dielectric constant proximate the gate electrode. Source/drain regions are disposed on either side of the gate stack.

公开(公告)号：US09640622B2

公开(公告)日：2017-05-02

申请号：US14778574

申请日：2013-06-28

Applicant: Intel Corporation

Inventor： Niti Goel ,  Gilbert Dewey ,  Niloy Mukherjee ,  Matthew V. Metz ,  Marko Radosavljevic ,  Benjamin Chu-Kung ,  Jack T. Kavalieros ,  Robert S. Chau

IPC: H01L21/02 ,  H01L31/102 ,  H01L29/205 ,  H01L29/06 ,  H01L29/66 ,  H01L29/78

CPC classification number: H01L29/205 ,  H01L21/02381 ,  H01L21/02463 ,  H01L21/02466 ,  H01L21/02502 ,  H01L21/02538 ,  H01L21/02546 ,  H01L21/02549 ,  H01L21/0262 ,  H01L29/0607 ,  H01L29/20 ,  H01L29/66469 ,  H01L29/66522 ,  H01L29/66795 ,  H01L29/785

Abstract: A first III-V material based buffer layer is deposited on a silicon substrate. A second III-V material based buffer layer is deposited onto the first III-V material based buffer layer. A III-V material based device channel layer is deposited on the second III-V material based buffer layer.

公开(公告)号：US20170104094A1

公开(公告)日：2017-04-13

申请号：US15389255

申请日：2016-12-22

Applicant: Intel Corporation

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

IPC: H01L29/778 ,  H01L29/205 ,  H01L29/40 ,  H01L21/02 ,  H01L29/36 ,  H01L21/311 ,  H01L29/423 ,  H01L29/51 ,  H01L29/66 ,  H01L21/268 ,  H01L29/20 ,  H01L21/306

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.

公开(公告)号：US09590069B2

公开(公告)日：2017-03-07

申请号：US14752365

申请日：2015-06-26

Applicant: Intel Corporation

Inventor： Sansaptak Dasgupta ,  Han Wui Then ,  Marko Radosavljevic ,  Niloy Mukherjee ,  Niti Goel ,  Sanaz Kabehie Gardner ,  Seung Hoon Sung ,  Ravi Pillarisetty ,  Robert S. Chau

IPC: H01L29/66 ,  H01L21/338 ,  H01L29/205 ,  H01L21/311 ,  H01L21/02 ,  H01L21/265 ,  H01L21/223 ,  H01L29/778 ,  H01L29/08 ,  H01L29/423 ,  H01L29/20 ,  H01L29/207

CPC classification number: H01L29/7784 ,  H01L21/0254 ,  H01L21/2233 ,  H01L21/2236 ,  H01L21/2654 ,  H01L21/26546 ,  H01L21/31111 ,  H01L21/31144 ,  H01L29/0847 ,  H01L29/2003 ,  H01L29/205 ,  H01L29/207 ,  H01L29/42376 ,  H01L29/66462 ,  H01L29/7786 ,  H01L29/7787

Abstract: Embodiments include high electron mobility transistors (HEMT). In embodiments, a gate electrode is spaced apart by different distances from a source and drain semiconductor region to provide high breakdown voltage and low on-state resistance. In embodiments, self-alignment techniques are applied to form a dielectric liner in trenches and over an intervening mandrel to independently define a gate length, gate-source length, and gate-drain length with a single masking operation. In embodiments, III-N HEMTs include fluorine doped semiconductor barrier layers for threshold voltage tuning and/or enhancement mode operation.

Abstract translation: 实施例包括高电子迁移率晶体管（HEMT）。 在实施例中，栅电极与源极和漏极半导体区间隔开不同的距离以提供高击穿电压和低导通状态电阻。 在实施例中，应用自对准技术以在沟槽中和在中间心轴上形成电介质衬垫，以通过单个掩蔽操作独立地限定栅极长度，栅极源长度和栅极 - 漏极长度。 在实施例中，III-N HEMT包括用于阈值电压调谐和/或增强模式操作的氟掺杂半导体势垒层。

公开(公告)号：US09564490B2

公开(公告)日：2017-02-07

申请号：US14985282

申请日：2015-12-30

Applicant: Intel Corporation

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

IPC: H01L29/772 ,  H01L29/12 ,  H01L29/15 ,  H01L29/66 ,  H01L21/8238 ,  H01L29/06 ,  H01L29/205 ,  H01L29/207

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 forming a modulation doped heterostructure, comprising forming an active portion having a first bandgap and forming 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，其可以包括形成调制掺杂异质结构，包括形成具有第一带隙的有源部分并形成具有第二带隙的δ掺杂部分。

公开(公告)号：US20160315153A1

公开(公告)日：2016-10-27

申请号：US15197615

申请日：2016-06-29

Applicant: Intel Corporation

Inventor： Han Wui Then ,  Robert Chau ,  Benjamin Chu-Kung ,  Gilbert Dewey ,  Jack Kavalieros ,  Matthew Metz ,  Niloy Mukherjee ,  Ravi Pillarisetty ,  Marko Radosavljevic

IPC: H01L29/15 ,  H01L29/06 ,  H01L29/20 ,  H01L27/06 ,  H01L29/786 ,  H01L29/423 ,  H01L29/66 ,  H01L23/66 ,  H01L29/04 ,  H01L29/205

CPC classification number: H01L29/158 ,  B82Y10/00 ,  H01L21/02603 ,  H01L23/66 ,  H01L27/0605 ,  H01L27/0886 ,  H01L29/045 ,  H01L29/0669 ,  H01L29/0673 ,  H01L29/0676 ,  H01L29/068 ,  H01L29/2003 ,  H01L29/205 ,  H01L29/42392 ,  H01L29/66431 ,  H01L29/66462 ,  H01L29/66469 ,  H01L29/66522 ,  H01L29/66742 ,  H01L29/775 ,  H01L29/778 ,  H01L29/7786 ,  H01L29/785 ,  H01L29/78618 ,  H01L29/78681 ,  H01L29/78696 ,  H01L2223/6677 ,  Y10S977/938

Abstract: A group III-N nanowire is disposed on a substrate. A longitudinal length of the nanowire is defined into a channel region of a first group III-N material, a source region electrically coupled with a first end of the channel region, and a drain region electrically coupled with a second end of the channel region. A second group III-N material on the first group III-N material serves as a charge inducing layer, and/or barrier layer on surfaces of nanowire. A gate insulator and/or gate conductor coaxially wraps completely around the nanowire within the channel region. Drain and source contacts may similarly coaxially wrap completely around the drain and source regions.

公开(公告)号：US20160079359A1

公开(公告)日：2016-03-17

申请号：US14946718

申请日：2015-11-19

Applicant: Intel Corporation

Inventor： Han Wui Then ,  Robert Chau ,  Benjamin Chu-Kung ,  Gilbert Dewey ,  Jack Kavalieros ,  Matthew Metz ,  Niloy Mukherjee ,  Ravi Pillarisetty ,  Marko Radosavljevic

IPC: H01L29/06 ,  H01L21/02 ,  H01L21/306 ,  H01L29/417 ,  H01L29/423 ,  H01L21/283 ,  H01L21/324 ,  H01L21/225 ,  H01L21/3213 ,  H01L21/31 ,  H01L21/311 ,  H01L29/66 ,  H01L29/04

CPC classification number: H01L29/0673 ,  B82Y10/00 ,  G05F3/02 ,  H01L21/02603 ,  H01L21/02636 ,  H01L21/225 ,  H01L21/283 ,  H01L21/30604 ,  H01L21/31 ,  H01L21/31116 ,  H01L21/32133 ,  H01L21/324 ,  H01L29/04 ,  H01L29/0676 ,  H01L29/068 ,  H01L29/2003 ,  H01L29/41725 ,  H01L29/42356 ,  H01L29/42392 ,  H01L29/66439 ,  H01L29/66462 ,  H01L29/66469 ,  H01L29/775 ,  H01L29/78696

Abstract: Transistors suitable for high voltage and high frequency operation. A nanowire is disposed vertically or horizontally on a substrate. A longitudinal length of the nanowire is defined into a channel region of a first semiconductor material, a source region electrically coupled with a first end of the channel region, a drain region electrically coupled with a second end of the channel region, and an extrinsic drain region disposed between the channel region and drain region. The extrinsic drain region has a wider bandgap than that of the first semiconductor. A gate stack including a gate conductor and a gate insulator coaxially wraps completely around the channel region, drain and source contacts similarly coaxially wrap completely around the drain and source regions.

公开(公告)号：US20160035860A1

公开(公告)日：2016-02-04

申请号：US14831307

申请日：2015-08-20

Applicant: Intel Corporation

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

IPC: H01L29/66

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 nano-wire 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，包括形成在隔离层上的纳米线材以提供晶体管的沟道的沟道层以及与沟道层耦合的接触， 所述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：US09153671B2

公开(公告)日：2015-10-06

申请号：US14141648

申请日：2013-12-27

Applicant: Intel Corporation

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 ,  B82Y10/00 ,  H01L29/267 ,  H01L29/775 ,  H01L29/778 ,  H01L21/76 ,  H01L29/78 ,  H01L29/10 ,  H01L29/51

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。