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：US11031499B2

公开(公告)日：2021-06-08

申请号：US16099532

申请日：2016-07-02

Applicant: Intel Corporation

Inventor： Willy Rachmady ,  Van H. Le ,  Matthew V. Metz ,  Benjamin Chu-Kung ,  Ashish Agrawal ,  Jack T. Kavalieros

IPC: H01L29/94 ,  H01L29/78 ,  H01L29/66 ,  H01L29/10 ,  H01L29/16 ,  H01L23/29 ,  H01L23/31 ,  H01L29/06 ,  H01L29/423 ,  H01L29/165

Abstract: An apparatus including a transistor device including a channel disposed on a substrate between a source and a drain, a gate electrode disposed on the channel, wherein the channel includes a length dimension between source and drain that is greater than a length dimension of the gate electrode such that there is a passivated underlap between an edge of the gate electrode and an edge of the channel relative to each of the source and the drain. A method including forming a channel of a transistor device on a substrate; forming first and second passivation layers on a surface of substrate on opposite sides of the channel; forming a gate stack on the channel between first and second passivation layers; and forming a source on the substrate between the channel and the first passivation layer and a drain on the substrate between the channel and the second passivation layer.

公开(公告)号：US11024713B2

公开(公告)日：2021-06-01

申请号：US16465758

申请日：2016-12-31

Applicant: Intel Corporation

Inventor： Seung Hoon Sung ,  Dipanjan Basu ,  Glenn A. Glass ,  Harold W. Kennel ,  Ashish Agrawal ,  Benjamin Chu-Kung ,  Anand S. Murthy ,  Jack T. Kavalieros ,  Tahir Ghani

IPC: H01L29/08 ,  H01L29/78 ,  H01L21/02 ,  H01L29/167 ,  H01L29/66

Abstract: An apparatus is provided which comprises: a semiconductor region on a substrate, a gate stack on the semiconductor region, a source region of doped semiconductor material on the substrate adjacent a first side of the semiconductor region, a drain region of doped semiconductor material on the substrate adjacent a second side of the semiconductor region, and a transition region in the drain region, adjacent the semiconductor region, wherein the transition region comprises varying dopant concentrations that increase in a direction away from the semiconductor region. Other embodiments are also disclosed and claimed.

公开(公告)号：US20200168724A1

公开(公告)日：2020-05-28

申请号：US16632266

申请日：2017-08-18

Applicant: Intel Corporation

Inventor： Cheng-Ying Huang ,  Willy Rachmady ,  Matthew V. Metz ,  Ashish Agrawal ,  Benjamin Chu-Kung ,  Uygar E. Avci ,  Jack T. Kavalieros ,  Ian A. Young

IPC: H01L29/66 ,  H01L29/08 ,  H01L29/78

Abstract: Disclosed herein are tunneling field effect transistors (TFETs), and related methods and computing devices. In some embodiments, a TFET may include: a first source/drain material having a p-type conductivity; a second source/drain material having an n-type conductivity; a channel material at least partially between the first source/drain material and the second source/drain material, wherein the channel material has a first side face and a second side face opposite the first side face; and a gate above the channel material, on the first side face, and on the second side face.

公开(公告)号：US10665688B2

公开(公告)日：2020-05-26

申请号：US15773894

申请日：2015-12-24

Applicant: Intel Corporation

Inventor： Willy Rachmady ,  Matthew V. Metz ,  Benjamin Chu-Kung ,  Van H. Le ,  Gilbert Dewey ,  Ashish Agrawal ,  Jack T. Kavalieros

IPC: H01L29/47 ,  H01L21/28 ,  H01L29/66 ,  H01L29/78 ,  H01L29/45

Abstract: An apparatus including a substrate; a transistor device on the substrate including a channel and a source and a drain disposed between the channel; a source contact coupled to the source and a drain contact coupled to the drain; and the source and drain each including a composition including a concentration of germanium at an interface with the channel that is greater than a concentration of germanium at a junction with the source contact. A method including defining an area on a substrate for a transistor device; forming a source and a drain each including an interface with the channel; and forming a contact to one of the source and the drain, wherein a composition of each of the source and the drain includes a concentration of germanium at an interface with the channel that is greater than a concentration at a junction with the contact.

公开(公告)号：US20190214466A1

公开(公告)日：2019-07-11

申请号：US16325420

申请日：2016-09-30

Applicant: Intel Corporation

Inventor： Benjamin Chu-Kung ,  Van H. Le ,  Ashish Agrawal ,  Jack T. Kavalieros ,  Matthew V. Metz ,  Seung Hoon Sung ,  Rafael Rios ,  Gilbert Dewey

IPC: H01L29/10 ,  H01L29/165 ,  H01L29/267 ,  H01L29/78 ,  H01L21/02 ,  H01L29/66

CPC classification number: H01L29/1054 ,  H01L21/02 ,  H01L21/02381 ,  H01L21/0243 ,  H01L21/0245 ,  H01L21/02463 ,  H01L21/02466 ,  H01L21/02502 ,  H01L21/02532 ,  H01L21/02538 ,  H01L21/02639 ,  H01L21/768 ,  H01L29/165 ,  H01L29/267 ,  H01L29/32 ,  H01L29/66795 ,  H01L29/785 ,  H01L29/7851

Abstract: An embodiment includes a device comprising: a substrate; a dielectric layer on the substrate and including a trench; a first portion of the trench including a first material that comprises at least one of a group III-V material and a group IV material; and a second portion of the trench, located between the first portion and the substrate, which includes a second material and an upper region and a lower region; wherein: (a)(i) the second material in the upper region has fewer defects than the second material in the lower region, and (a)(ii) the first material is strained. Other embodiments are described herein.

公开(公告)号：US12120865B2

公开(公告)日：2024-10-15

申请号：US17132981

申请日：2020-12-23

Applicant: Intel Corporation

Inventor： Cheng-Ying Huang ,  Ashish Agrawal ,  Gilbert Dewey ,  Abhishek A. Sharma ,  Wilfred Gomes ,  Jack Kavalieros

IPC: H10B12/00 ,  H01L21/683 ,  H01L29/06 ,  H01L29/423 ,  H01L29/66 ,  H01L29/786 ,  H10B53/30

CPC classification number: H10B12/30 ,  H01L21/6835 ,  H01L29/0673 ,  H01L29/42392 ,  H01L29/66742 ,  H01L29/78618 ,  H01L29/78696 ,  H10B12/03 ,  H10B12/05 ,  H10B53/30 ,  H01L2221/68363

Abstract: Monolithic two-dimensional (2D) arrays of double-sided DRAM cells including a frontside bit cell over a backside bit cell. Each double-sided cell includes a stacked transistor structure having at least a first transistor over a second transistor. Each double-sided cell further includes a first capacitor on a frontside of the stacked transistor structure and electrically coupled to a source/drain of the first transistor. Each double-sided cell further includes a second capacitor on a backside of the stacked transistor structure and electrically coupled to a source/drain of the second transistor. Frontside cell addressing interconnects are electrically coupled to other terminals of at least the first transistor while one or more backside addressing interconnects are electrically coupled to at least one terminal of the second transistor or second capacitor.

公开(公告)号：US11973143B2

公开(公告)日：2024-04-30

申请号：US16368088

申请日：2019-03-28

Applicant: Intel Corporation

Inventor： Ryan Keech ,  Benjamin Chu-Kung ,  Subrina Rafique ,  Devin Merrill ,  Ashish Agrawal ,  Harold Kennel ,  Yang Cao ,  Dipanjan Basu ,  Jessica Torres ,  Anand Murthy

IPC: H01L21/84 ,  H01L21/02 ,  H01L29/08 ,  H01L29/10 ,  H01L29/165 ,  H01L29/167 ,  H01L29/45 ,  H01L29/66 ,  H01L29/78

CPC classification number: H01L29/7848 ,  H01L21/02532 ,  H01L21/02579 ,  H01L29/0847 ,  H01L29/1054 ,  H01L29/165 ,  H01L29/167 ,  H01L29/45 ,  H01L29/66515 ,  H01L29/66545 ,  H01L29/66795 ,  H01L29/7851

Abstract: Integrated circuit structures having source or drain structures and germanium N-channels are described. In an example, an integrated circuit structure includes a fin having a lower fin portion and an upper fin portion, the upper fin portion including germanium. A gate stack is over the upper fin portion of the fin. A first source or drain structure includes an epitaxial structure embedded in the fin at a first side of the gate stack. A second source or drain structure includes an epitaxial structure embedded in the fin at a second side of the gate stack. Each epitaxial structure includes a first semiconductor layer in contact with the upper fin portion, and a second semiconductor layer on the first semiconductor layer. The first semiconductor layer comprises silicon, germanium and phosphorous, and the second semiconductor layer comprises silicon and phosphorous.

公开(公告)号：US20230420574A1

公开(公告)日：2023-12-28

申请号：US17847555

申请日：2022-06-23

Applicant: Intel Corporation

Inventor： Seung Hoon Sung ,  Ashish Agrawal ,  Jack T. Kavalieros ,  Rambert Nahm ,  Natalie Briggs ,  Susmita Ghose ,  Glenn Glass ,  Devin R. Merrill ,  Aaron A. Budrevich ,  Shruti Subramanian ,  Biswajeet Guha ,  William Hsu ,  Adedapo A. Oni ,  Rahul Ramamurthy ,  Anupama Bowonder ,  Hsin-Ying Tseng ,  Rajat K. Paul ,  Marko Radosavljevic

IPC: H01L29/786 ,  H01L29/423 ,  H01L29/06

CPC classification number: H01L29/78696 ,  H01L29/0673 ,  H01L29/42392

Abstract: Techniques are provided herein to form semiconductor devices on a substrate with an alternative crystallographic surface orientation. The techniques are particularly useful with respect to gate-all-around and forksheet transistor configurations. A substrate having a (110) crystallographic surface orientation forms the basis for the growth of alternating types of semiconductor layers. Both n-channel and p-channel transistors may be fabricated using silicon nanoribbons formed from some of the alternating semiconductor layers. The crystallographic surface orientation of the Si nanoribbons will reflect the same crystallographic surface orientation of the substrate, which leads to a higher hole mobility across the Si nanoribbons of the p-channel devices and an overall improved CMOS device performance.

公开(公告)号：US20230420507A1

公开(公告)日：2023-12-28

申请号：US17847559

申请日：2022-06-23

Applicant: Intel Corporation

Inventor： Ashish Agrawal ,  Anand Murthy ,  Jack T. Kavalieros ,  Rajat K. Paul ,  Susmita Ghose ,  Seung Hoon Sung

IPC: H01L29/06 ,  H01L29/423 ,  H01L29/66 ,  H01L29/786

CPC classification number: H01L29/0673 ,  H01L29/42392 ,  H01L29/66545 ,  H01L29/66553 ,  H01L29/78696

Abstract: Semiconductor devices on a substrate with an alternative crystallographic surface orientation. Example devices includes gate-all-around (e.g., nanoribbon and nanosheet) and forksheet transistors. In an example, a substrate having a (110) crystallographic surface orientation forms the basis for the growth of alternating silicon germanium (SiGe) or germanium tin (GeSn) and silicon (Si) semiconductor layers. P-channel transistors may be formed using SiGe or GeSn nanoribbons while n-channel transistors are formed from Si nanoribbons. The crystallographic surface orientation of the SiGe or GeSn nanoribbons will reflect the same crystallographic surface orientation of the substrate, which leads to a higher hole mobility across the SiGe or GeSn nanoribbons and improved device performance.