公开(公告)号：US20250107174A1

公开(公告)日：2025-03-27

申请号：US18977288

申请日：2024-12-11

Applicant: Intel Corporation

Inventor： Siddharth CHOUKSEY ,  Jack T. KAVALIEROS ,  Stephen M. CEA ,  Ashish AGRAWAL ,  Willy RACHMADY

IPC: H01L29/06 ,  H01L27/088 ,  H01L29/417 ,  H01L29/66 ,  H01L29/78

Abstract: Neighboring gate-all-around integrated circuit structures having a conductive contact stressor between epitaxial source or drain regions are described. In an example, a first vertical arrangement of nanowires and a second vertical arrangement of nanowires above a substrate. A first gate stack is over the first vertical arrangement of nanowires. A second gate stack is over the second vertical arrangement of nanowires. First epitaxial source or drain structures are at ends of the first vertical arrangement of nanowires. Second epitaxial source or drain structures are at ends of the second vertical arrangement of nanowires. An intervening conductive contact structure is between neighboring ones of the first epitaxial source or drain structures and of the second epitaxial source or drain structures. The intervening conductive contact structure imparts a stress to the neighboring ones of the first epitaxial source or drain structures and of the second epitaxial source or drain structures.

公开(公告)号：US20240234422A1

公开(公告)日：2024-07-11

申请号：US18614290

申请日：2024-03-22

Applicant: Intel Corporation

Inventor： Cheng-Ying HUANG ,  Gilbert DEWEY ,  Anh PHAN ,  Nicole K. THOMAS ,  Urusa ALAAN ,  Seung Hoon SUNG ,  Christopher M. NEUMANN ,  Willy RACHMADY ,  Patrick MORROW ,  Hui Jae YOO ,  Richard E. SCHENKER ,  Marko RADOSAVLJEVIC ,  Jack T. KAVALIEROS ,  Ehren MANNEBACH

IPC: H01L27/092 ,  H01L29/06 ,  H01L29/423 ,  H01L29/775 ,  H01L29/78 ,  H10B12/00

CPC classification number: H01L27/0924 ,  H01L29/0673 ,  H01L29/4232 ,  H01L29/775 ,  H01L29/7851 ,  H01L29/7853 ,  H10B12/056

Abstract: Embodiments disclosed herein include stacked forksheet transistor devices, and methods of fabricating stacked forksheet transistor devices. In an example, an integrated circuit structure includes a backbone. A first transistor device includes a first vertical stack of semiconductor channels adjacent to an edge of the backbone. A second transistor device includes a second vertical stack of semiconductor channels adjacent to the edge of the backbone. The second transistor device is stacked on the first transistor device.

公开(公告)号：US20240145557A1

公开(公告)日：2024-05-02

申请号：US18408346

申请日：2024-01-09

Applicant: Intel Corporation

Inventor： Ehren MANNEBACH ,  Aaron LILAK ,  Hui Jae YOO ,  Patrick MORROW ,  Anh PHAN ,  Willy RACHMADY ,  Cheng-Ying HUANG ,  Gilbert DEWEY

IPC: H01L29/417

CPC classification number: H01L29/41741 ,  H01L29/41775

Abstract: A device is disclosed. The device includes a first epitaxial region, a second epitaxial region, a first gate region between the first epitaxial region and a second epitaxial region, a first dielectric structure underneath the first epitaxial region, a second dielectric structure underneath the second epitaxial region, a third epitaxial region underneath the first epitaxial region, a fourth epitaxial region underneath the second epitaxial region, and a second gate region between the third epitaxial region and a fourth epitaxial region and below the first gate region. The device also includes, a conductor via extending from the first epitaxial region, through the first dielectric structure and the third epitaxial region, the conductor via narrower at an end of the conductor via that contacts the first epitaxial region than at an opposite end.

公开(公告)号：US20240047559A1

公开(公告)日：2024-02-08

申请号：US18381887

申请日：2023-10-19

Applicant: Intel Corporation

Inventor： Willy RACHMADY ,  Gilbert DEWEY ,  Jack T. KAVALIEROS ,  Aaron LILAK ,  Patrick MORROW ,  Anh PHAN ,  Cheng-Ying HUANG ,  Ehren MANNEBACH

IPC: H01L29/66 ,  H01L21/02 ,  H01L21/8238 ,  H01L27/092 ,  H01L29/06 ,  H01L29/423 ,  H01L29/786

CPC classification number: H01L29/66742 ,  H01L21/02236 ,  H01L21/02532 ,  H01L21/02603 ,  H01L21/823807 ,  H01L21/823814 ,  H01L21/823892 ,  H01L27/092 ,  H01L29/0673 ,  H01L29/42392 ,  H01L29/66545 ,  H01L29/78696

Abstract: Gate-all-around integrated circuit structures having depopulated channel structures, and methods of fabricating gate-all-around integrated circuit structures having depopulated channel structures using a bottom-up oxidation approach, are described. For example, an integrated circuit structure includes a vertical arrangement of nanowires above a substrate. The vertical arrangement of nanowires has one or more active nanowires above one or more oxidized nanowires. A gate stack is over the vertical arrangement of nanowires and around the one or more oxidized nanowires.

公开(公告)号：US20230352481A1

公开(公告)日：2023-11-02

申请号：US18219374

申请日：2023-07-07

Applicant: Intel Corporation

Inventor： Aaron D. LILAK ,  Gilbert DEWEY ,  Cheng-Ying HUANG ,  Christopher JEZEWSKI ,  Ehren MANNEBACH ,  Rishabh MEHANDRU ,  Patrick MORROW ,  Anand S. MURTHY ,  Anh PHAN ,  Willy RACHMADY

IPC: H01L27/088 ,  H01L21/768 ,  H01L27/092 ,  H01L23/522 ,  H01L23/00 ,  H01L23/48 ,  H01L21/8258 ,  H01L21/84

CPC classification number: H01L27/0886 ,  H01L21/76898 ,  H01L21/8258 ,  H01L21/845 ,  H01L23/481 ,  H01L23/5226 ,  H01L24/29 ,  H01L24/32 ,  H01L27/0924 ,  H01L24/94 ,  H01L2224/29188 ,  H01L2224/32145

Abstract: Stacked transistor structures having a conductive interconnect between source/drain regions of upper and lower transistors. In some embodiments, the interconnect is provided, at least in part, by highly doped epitaxial material deposited in the upper transistor’s source/drain region. In such cases, the epitaxial material seeds off of an exposed portion of semiconductor material of or adjacent to the upper transistor’s channel region and extends downward into a recess that exposes the lower transistor’s source/drain contact structure. The epitaxial source/drain material directly contacts the lower transistor’s source/drain contact structure, to provide the interconnect. In other embodiments, the epitaxial material still seeds off the exposed semiconductor material of or proximate to the channel region and extends downward into the recess, but need not contact the lower contact structure. Rather, a metal-containing contact structure passes through the epitaxial material of the upper source/drain region and contacts the lower transistor’s source/drain contact structure.

公开(公告)号：US20230170350A1

公开(公告)日：2023-06-01

申请号：US18095973

申请日：2023-01-11

Applicant: Intel Corporation

Inventor： Willy RACHMADY ,  Cheng-Ying HUANG ,  Gilbert DEWEY ,  Aaron LILAK ,  Patrick MORROW ,  Anh PHAN ,  Ehren MANNEBACH ,  Jack T. KAVALIEROS

IPC: H01L27/088 ,  H01L21/8234 ,  H01L29/66

CPC classification number: H01L27/0886 ,  H01L21/823481 ,  H01L29/66545 ,  H01L21/823431

Abstract: A device is disclosed. The device includes a first semiconductor fin, a first source-drain epitaxial region adjacent a first portion of the first semiconductor fin, a second source-drain epitaxial region adjacent a second portion of the first semiconductor fin, a first gate conductor above the first semiconductor fin, a gate spacer covering the sides of the gate conductor, a second semiconductor fin below the first semiconductor fin, a second gate conductor on a first side of the second semiconductor fin and a third gate conductor on a second side of the second semiconductor fin, a third source-drain epitaxial region adjacent a first portion of the second semiconductor fin, and a fourth source-drain epitaxial region adjacent a second portion of the second semiconductor fin. The device also includes a dielectric isolation structure below the first semiconductor fin and above the second semiconductor fin that separates the first semiconductor fin and the second semiconductor fin.

公开(公告)号：US20220246608A1

公开(公告)日：2022-08-04

申请号：US17726412

申请日：2022-04-21

Applicant: Intel Corporation

Inventor： Aaron D. LILAK ,  Anh PHAN ,  Ehren MANNEBACH ,  Cheng-Ying HUANG ,  Stephanie A. BOJARSKI ,  Gilbert DEWEY ,  Orb ACTON ,  Willy RACHMADY

IPC: H01L27/088 ,  H01L29/423 ,  H01L29/08 ,  H01L21/762 ,  H01L23/528 ,  H01L29/78 ,  H01L29/06

Abstract: Stacked transistor structures having a conductive interconnect between upper and lower transistors. In an embodiment, the interconnect is formed by first provisioning a protective layer over an area to be protected (gate dielectric or other sensitive material) of upper transistor, and then etching material adjacent and below the protected area to expose an underlying contact point of lower transistor. A metal is deposited into the void created by the etch to provide the interconnect. The protective layer is resistant to the etch process and is preserved in the structure, and in some cases may be utilized as a work-function metal. In an embodiment, the protective layer is formed by deposition of reactive semiconductor and metal material layers which are subsequently transformed into a work function metal or work function metal-containing compound. A remnant of unreacted reactive semiconductor material may be left in structure and collinear with protective layer.

公开(公告)号：US20210408284A1

公开(公告)日：2021-12-30

申请号：US16912136

申请日：2020-06-25

Applicant: Intel Corporation

Inventor： Ashish AGRAWAL ,  Anand S. MURTHY ,  Jack T. KAVALIEROS ,  Koustav GANGULY ,  Ryan KEECH ,  Siddharth CHOUKSEY ,  Willy RACHMADY

IPC: H01L29/78 ,  H01L27/092 ,  H01L29/06 ,  H01L29/423 ,  H01L29/786 ,  H01L29/165

Abstract: Gate-all-around integrated circuit structures having strained source or drain structures on a gate dielectric layer, and methods of fabricating gate-all-around integrated circuit structures having strained source or drain structures on a gate dielectric layer, are described. For example, an integrated circuit structure includes an insulator layer above a substrate. A vertical arrangement of horizontal semiconductor nanowires is over the insulator layer. A pair of epitaxial source or drain structures is at first and second ends of the vertical arrangement of horizontal semiconductor nanowires and on the insulator layer. A gate stack is surrounding a channel region of the vertical arrangement of horizontal semiconductor nanowires. The gate stack includes a high-k dielectric layer continuous with and having a same composition as the insulator layer.

公开(公告)号：US20210408283A1

公开(公告)日：2021-12-30

申请号：US16912127

申请日：2020-06-25

Applicant: Intel Corporation

Inventor： Ashish AGRAWAL ,  Anand S. MURTHY ,  Cory BOMBERGER ,  Jack T. KAVALIEROS ,  Koustav GANGULY ,  Ryan KEECH ,  Siddharth CHOUKSEY ,  Susmita GHOSE ,  Willy RACHMADY

IPC: H01L29/78 ,  H01L27/092 ,  H01L29/06 ,  H01L29/423 ,  H01L29/786 ,  H01L29/16 ,  H01L29/165

Abstract: Gate-all-around integrated circuit structures having strained source or drain structures on an insulator layer, and methods of fabricating gate-all-around integrated circuit structures having strained source or drain structures on an insulator layer, are described. For example, an integrated circuit structure includes an insulator layer above a substrate. A vertical arrangement of horizontal semiconductor nanowires is over the insulator layer. A gate stack is surrounding a channel region of the vertical arrangement of horizontal semiconductor nanowires, and the gate stack is on the insulator layer. A pair of epitaxial source or drain structures is at first and second ends of the vertical arrangement of horizontal semiconductor nanowires and on the insulator layer. Each of the pair of epitaxial source or drain structures has a compressed or an expanded lattice.

公开(公告)号：US20210408239A1

公开(公告)日：2021-12-30

申请号：US16913848

申请日：2020-06-26

Applicant: Intel Corporation

Inventor： Siddharth CHOUKSEY ,  Ashish AGRAWAL ,  Seung Hoon SUNG ,  Jack T. KAVALIEROS ,  Matthew V. METZ ,  Willy RACHMADY ,  Jessica TORRES ,  Martin M. MITAN

IPC: H01L29/10 ,  H01L29/06 ,  H01L29/16 ,  H01L29/78 ,  H01L21/8234 ,  H01L21/768 ,  H01L27/088

Abstract: Embodiments disclosed herein include semiconductor devices and methods of forming such devices. In an embodiment, a semiconductor device comprises a stack of semiconductor channels with a first end and second end. In an embodiment, individual ones of the semiconductor channels comprise a nitrided surface. In an embodiment, the semiconductor device further comprises a source region at the first end of the stack and a drain region at the second end of the stack. In an embodiment, a gate dielectric surrounds the semiconductor channels, and a gate electrode surrounding the gate dielectric.