公开(公告)号：US11264501B2

公开(公告)日：2022-03-01

申请号：US16637213

申请日：2017-09-29

Applicant: INTEL CORPORATION

Inventor： Rishabh Mehandru ,  Anand Murthy ,  Karthik Jambunathan ,  Cory Bomberger

IPC: H01L29/78 ,  H01L21/02 ,  H01L21/8234 ,  H01L27/088 ,  H01L29/08 ,  H01L29/161 ,  H01L21/8238

Abstract: Techniques and mechanisms for imposing stress on a channel region of an NMOS transistor. In an embodiment, a fin structure on a semiconductor substrate includes two source or drain regions of the transistor, wherein a channel region of the transistor is located between the source or drain regions. At least on such source or drain region includes a doped silicon germanium (SiGe) compound, wherein dislocations in the SiGe compound result in the at least one source or drain region exerting a tensile stress on the channel region. In another embodiment, source or drain regions of a transistor each include a SiGe compound which comprises at least 50 wt % germanium.

公开(公告)号：US11244943B2

公开(公告)日：2022-02-08

申请号：US16728983

申请日：2019-12-27

Applicant: Intel Corporation

Inventor： Cheng-Ying Huang ,  Gilbert Dewey ,  Ashish Agrawal ,  Kimin Jun ,  Willy Rachmady ,  Zachary Geiger ,  Cory Bomberger ,  Ryan Keech ,  Koustav Ganguly ,  Anand Murthy ,  Jack Kavalieros

IPC: H01L27/06 ,  H01L21/683 ,  H01L21/8238 ,  H01L29/10 ,  H01L29/04 ,  H01L29/08 ,  H01L27/092

Abstract: A monolithic three-dimensional integrated circuit may include multiple transistor levels separated by one or more levels of metallization. An upper level transistor structure may include a monocrystalline channel material over a bottom gate stack. The channel material and the gate stack materials may be formed on a donor substrate at any suitable temperature, and subsequently transferred from the donor substrate to a host substrate that includes lower-level circuitry. The upper-level transistor may be patterned from the transferred layers so that the gate electrode includes one or more bonding layers. Source and drain material may be patterned from a source and drain material layer that was transferred from the donor substrate along with the channel material, or source and drain material may be grown at low temperatures from the transferred channel material.

公开(公告)号：US20210202319A1

公开(公告)日：2021-07-01

申请号：US16728903

申请日：2019-12-27

Applicant: Intel Corporation

Inventor： Ashish Agrawal ,  Gilbert Dewey ,  Cheng-Ying Huang ,  Willy Rachmady ,  Anand Murthy ,  Ryan Keech ,  Cory Bomberger

IPC: H01L21/822 ,  H01L27/12 ,  H01L29/08 ,  H01L23/522 ,  H01L29/417 ,  H01L21/8238

Abstract: A monolithic three-dimensional integrated circuit may include multiple transistor levels separated by one or more levels of metallization. An upper level transistor structure may include monocrystalline source and drain material epitaxially grown from a monocrystalline channel material at a temperature low enough to avoid degradation of a lower level transistor structure and/or degradation of one or more low-k dielectric materials between the transistor levels. A highly conductive n-type silicon source and drain material may be selectively deposited at low temperatures with a high pressure CVD process. Multiple crystals of source drain material arranged in a vertically stacked multi-channel transistor structure may be contacted by a single contact metallization.

公开(公告)号：US11004978B2

公开(公告)日：2021-05-11

申请号：US16785431

申请日：2020-02-07

Applicant: Intel Corporation

Inventor： Glenn Glass ,  Karthik Jambunathan ,  Anand Murthy ,  Chandra Mohapatra ,  Seiyon Kim

IPC: H01L29/78 ,  H01L29/66 ,  H01L29/10 ,  H01L29/165

Abstract: Methods of forming germanium channel structure are described. An embodiment includes forming a germanium fin on a substrate, wherein a portion of the germanium fin comprises a germanium channel region, forming a gate material on the germanium channel region, and forming a graded source/drain structure adjacent the germanium channel region. The graded source/drain structure comprises a germanium concentration that is higher adjacent the germanium channel region than at a source/drain contact region.

公开(公告)号：US20200176601A1

公开(公告)日：2020-06-04

申请号：US16785431

申请日：2020-02-07

Applicant: Intel Corporation

Inventor： Glenn Glass ,  Karthik Jambunathan ,  Anand Murthy ,  Chandra Mohapatra ,  Seiyon Kim

IPC: H01L29/78 ,  H01L29/66 ,  H01L29/10 ,  H01L29/165

Abstract: Methods of forming germanium channel structure are described. An embodiment includes forming a germanium fin on a substrate, wherein a portion of the germanium fin comprises a germanium channel region, forming a gate material on the germanium channel region, and forming a graded source/drain structure adjacent the germanium channel region. The graded source/drain structure comprises a germanium concentration that is higher adjacent the germanium channel region than at a source/drain contact region.

公开(公告)号：US20180358436A1

公开(公告)日：2018-12-13

申请号：US15778724

申请日：2015-12-24

Applicant: Intel Corporation

Inventor： Karthik Jambunathan ,  Glenn Glass ,  Anand Murthy ,  Jun Sung Kang ,  Seiyon Kim

IPC: H01L29/06 ,  H01L29/08 ,  H01L29/417 ,  H01L29/66 ,  H01L29/775 ,  H01L29/78

CPC classification number: H01L29/0673 ,  B82Y10/00 ,  H01L29/06 ,  H01L29/0847 ,  H01L29/41725 ,  H01L29/42392 ,  H01L29/66439 ,  H01L29/775 ,  H01L29/78 ,  H01L29/78696

Abstract: Methods of forming self-aligned nanowire spacer structures are described. An embodiment includes forming a channel structure comprising a first nanowire and a second nanowire. Source/drain structures are formed adjacent the channel structure, wherein a liner material is disposed on at least a portion of the sidewalls of the source/drain structures. A nanowire spacer structure is formed between the first and second nanowires, wherein the nanowire spacer comprises an oxidized portion of the liner.

公开(公告)号：US09437710B2

公开(公告)日：2016-09-06

申请号：US14583042

申请日：2014-12-24

Applicant: Intel Corporation

Inventor： Anand Murthy ,  Boyan Boyanov ,  Glenn A. Glass ,  Thomas Hoffman

IPC: H01L29/78 ,  H01L29/66 ,  H01L21/285 ,  H01L29/165 ,  H01L29/167 ,  H01L29/36 ,  H01L21/8238

CPC classification number: H01L29/7848 ,  H01L21/28518 ,  H01L21/823807 ,  H01L21/823814 ,  H01L29/0653 ,  H01L29/0847 ,  H01L29/165 ,  H01L29/167 ,  H01L29/36 ,  H01L29/41725 ,  H01L29/6628 ,  H01L29/665 ,  H01L29/6653 ,  H01L29/6656 ,  H01L29/6659 ,  H01L29/66628 ,  H01L29/66636 ,  H01L29/78 ,  H01L29/7833 ,  H01L29/7842 ,  Y10S438/933

Abstract: An embodiment of the invention reduces the external resistance of a transistor by utilizing a silicon germanium alloy for the source and drain regions and a nickel silicon germanium self-aligned silicide (i.e., salicide) layer to form the contact surface of the source and drain regions. The interface of the silicon germanium and the nickel silicon germanium silicide has a lower specific contact resistivity based on a decreased metal-semiconductor work function between the silicon germanium and the silicide and the increased carrier mobility in silicon germanium versus silicon. The silicon germanium may be doped to further tune its electrical properties. A reduction of the external resistance of a transistor equates to increased transistor performance both in switching speed and power consumption.

公开(公告)号：US09202889B2

公开(公告)日：2015-12-01

申请号：US13931678

申请日：2013-06-28

Applicant: Intel Corporation

Inventor： Anand Murthy ,  Boyan Boyanov ,  Glenn A Glass ,  Thomas Hoffman

IPC: H01L29/43 ,  H01L29/66 ,  H01L21/285 ,  H01L29/165 ,  H01L29/78 ,  H01L21/8238

CPC classification number: H01L29/7848 ,  H01L21/28518 ,  H01L21/823807 ,  H01L21/823814 ,  H01L29/0653 ,  H01L29/0847 ,  H01L29/165 ,  H01L29/167 ,  H01L29/36 ,  H01L29/41725 ,  H01L29/6628 ,  H01L29/665 ,  H01L29/6653 ,  H01L29/6656 ,  H01L29/6659 ,  H01L29/66628 ,  H01L29/66636 ,  H01L29/78 ,  H01L29/7833 ,  H01L29/7842 ,  Y10S438/933

Abstract: An embodiment of the invention reduces the external resistance of a transistor by utilizing a silicon germanium alloy for the source and drain regions and a nickel silicon germanium self-aligned silicide (i.e., salicide) layer to form the contact surface of the source and drain regions. The interface of the silicon germanium and the nickel silicon germanium silicide has a lower specific contact resistivity based on a decreased metal-semiconductor work function between the silicon germanium and the silicide and the increased carrier mobility in silicon germanium versus silicon. The silicon germanium may be doped to further tune its electrical properties. A reduction of the external resistance of a transistor equates to increased transistor performance both in switching speed and power consumption.

Abstract translation: 本发明的一个实施例通过利用用于源极和漏极区域的硅锗合金和镍硅锗自对准硅化物（即，自对准硅化物）层来形成源极和漏极区域的接触表面来降低晶体管的外部电阻 。 基于硅锗和硅化物之间的金属半导体功函数降低，硅锗与硅硅锗硅的界面具有较低的比接触电阻率，并且硅锗与硅中的载流子迁移率增加。 可以掺杂硅锗以进一步调整其电性能。 降低晶体管的外部电阻等同于在开关速度和功耗方面提高晶体管的性能。

公开(公告)号：US20150221744A1

公开(公告)日：2015-08-06

申请号：US14688647

申请日：2015-04-16

Applicant: Intel Corporation

Inventor： Seiyon Kim ,  Daniel Aubertine ,  Kelin Kuhn ,  Anand Murthy

IPC: H01L29/66 ,  H01L29/10 ,  H01L29/06

CPC classification number: H01L29/66795 ,  H01L29/0673 ,  H01L29/1037 ,  H01L29/42392 ,  H01L29/66439 ,  H01L29/66545 ,  H01L29/6656 ,  H01L29/6681 ,  H01L29/66818 ,  H01L29/775 ,  H01L29/785 ,  H01L29/78696

Abstract: A nanowire device of the present description may be produced with the incorporation of at least one underlayer etch stop formed during the fabrication of at least one nanowire transistor in order to assist in protecting source structures and/or drain structures from damage that may result from fabrication processes. The underlayer etch stop may prevent damage to the source structures and/or drain the structures, when the material used in the fabrication of the source structures and/or the drain structures is susceptible to being etched by the processes used in the removal of the sacrificial materials, i.e. low selectively to the source structure and/or the drain structure materials, such that potential shorting between the transistor gate electrodes and contacts formed for the source structures and/or the drain structures may be prevented.

Abstract translation: 本描述的纳米线器件可以通过结合在制造至少一个纳米线晶体管期间形成的至少一个底层蚀刻停止来产生，以便有助于保护源结构和/或漏极结构免受可能由制造产生的损伤 过程。 当在源结构和/或漏极结构的制造中使用的材料易于被用于去除牺牲物的过程被蚀刻时，底层蚀刻停止件可以防止对源结构的损坏和/或排出结构 材料，即选择性地低至源极结构和/或漏极结构材料，使得可以防止晶体管栅电极和为源极结构和/或漏极结构形成的触点之间的电位短路。

公开(公告)号：US09076814B2

公开(公告)日：2015-07-07

申请号：US14297847

申请日：2014-06-06

Applicant: Intel Corporation

Inventor： Cory Weber ,  Mark Liu ,  Anand Murthy ,  Hemant Deshpande ,  Daniel B. Aubertine

IPC: H01L29/76 ,  H01L29/66 ,  H01L21/265 ,  H01L29/417 ,  H01L29/78

CPC classification number: H01L29/7848 ,  H01L21/26506 ,  H01L29/0847 ,  H01L29/16 ,  H01L29/1608 ,  H01L29/161 ,  H01L29/165 ,  H01L29/41783 ,  H01L29/66477 ,  H01L29/66628 ,  H01L29/78 ,  H01L29/7847 ,  H01L29/7849

Abstract: A device is provided. The device includes a transistor formed on a semiconductor substrate, the transistor having a conduction channel. The device includes at least one edge dislocation formed adjacent to the conduction channel on the semiconductor substrate. The device also includes at least one free surface introduced above the conduction channel and the at least one edge dislocation.

Abstract translation: 提供了一种设备。 该器件包括形成在半导体衬底上的晶体管，该晶体管具有导通沟道。 该器件包括与半导体衬底上的导电沟道相邻形成的至少一个边缘位错。 该装置还包括在导电通道之上引入的至少一个自由表面和至少一个边缘错位。