公开(公告)号：US11916118B2

公开(公告)日：2024-02-27

申请号：US18130824

申请日：2023-04-04

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：US20230420562A1

公开(公告)日：2023-12-28

申请号：US17809329

申请日：2022-06-28

Applicant: Intel Corporation

Inventor： Cheng-Ying Huang ,  Munzarin F. Qayyum ,  Nicole K. Thomas ,  Rohit Galatage ,  Patrick Morrow ,  Jami A. Wiedemer ,  Marko Radosavljevic ,  Jack T. Kavalieros

IPC: H01L29/78 ,  H01L29/06 ,  H01L29/423 ,  H01L29/786 ,  H01L29/66

CPC classification number: H01L29/7848 ,  H01L29/0673 ,  H01L29/42392 ,  H01L29/78696 ,  H01L29/66795

Abstract: Techniques are provided herein to form non-planar semiconductor devices in a stacked transistor configuration adjacent to stressor materials. In one example, an n-channel device and a p-channel device may both be gate-all-around transistors each having any number of nanoribbons extending in the same direction, where the n-channel device is located vertically above the p-channel device (or vice versa). Source or drain regions are adjacent to both ends of the n-channel device and both ends of the p-channel device. On the opposite side of the stacked source or drain regions (e.g., opposite from the nanoribbons), stressor materials may be used to fill the gate trench in place of additional semiconductor devices. The stressor materials may include, for instance, a compressive stressor material adjacent to the p-channel device and/or a tensile stressor material adjacent to the n-channel device. The stressor material(s) may form or otherwise be part of a diffusion cut structure.

公开(公告)号：US20230395718A1

公开(公告)日：2023-12-07

申请号：US17833050

申请日：2022-06-06

Applicant: Intel Corporation

Inventor： Willy Rachmady ,  Nitesh Kumar ,  Jami A. Wiedemer ,  Cheng-Ying Huang ,  Marko Radosavljevic ,  Mauro J. Kobrinsky ,  Patrick Morrow ,  Rohit Galatage ,  David N. Goldstein ,  Christopher J. Jezewski

IPC: H01L29/78 ,  H01L29/423 ,  H01L29/45 ,  H01L29/06 ,  H01L27/092

CPC classification number: H01L29/7845 ,  H01L29/42392 ,  H01L27/092 ,  H01L29/0665 ,  H01L29/45

Abstract: An integrated circuit structure includes a vertical stack including a first device, and a second device above the first device. The first device includes (i) a first source and first drain region, (ii) a first body laterally between the first source and drain regions, (iii) a first source contact including a first conductive material, and (iv) a first drain contact including the first conductive material. The second device includes (i) a second source and second drain region, (ii) a second body laterally between the second source and drain regions, (iii) a second source contact including a second conductive material, and (iv) a second drain contact including the second conductive material. In an example, the first and second conductive materials are compositionally different. In an example, the first conductive material induces compressive strain on the first body, and the second conductive material induces tensile strain on the second body.

公开(公告)号：US11764263B2

公开(公告)日：2023-09-19

申请号：US16240156

申请日：2019-01-04

Applicant: Intel Corporation

Inventor： Ehren Mannebach ,  Anh Phan ,  Aaron Lilak ,  Willy Rachmady ,  Gilbert Dewey ,  Cheng-Ying Huang ,  Richard Schenker ,  Hui Jae Yoo ,  Patrick Morrow

IPC: H01L29/06 ,  H01L27/088 ,  H01L29/417 ,  H01L29/66 ,  H01L29/78 ,  H01L29/423

CPC classification number: H01L29/068 ,  H01L27/0886 ,  H01L29/0649 ,  H01L29/0673 ,  H01L29/41791 ,  H01L29/42392 ,  H01L29/66795 ,  H01L29/785 ,  H01L2029/7858

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 multiple bottom-up oxidation approaches, are described. For example, an integrated circuit structure includes a vertical arrangement of nanowires. All nanowires of the vertical arrangement of nanowires are oxide nanowires. A gate stack is over the vertical arrangement of nanowires, around each of the oxide nanowires. The gate stack includes a conductive gate electrode.

公开(公告)号：US11742346B2

公开(公告)日：2023-08-29

申请号：US16024058

申请日：2018-06-29

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 ,  H01L21/8258 ,  H01L21/84 ,  H01L23/48 ,  H01L23/522 ,  H01L27/092 ,  H01L21/8234 ,  H01L21/822 ,  H01L23/00

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：US20230132749A1

公开(公告)日：2023-05-04

申请号：US17517065

申请日：2021-11-02

Applicant: Intel Corporation

Inventor： Nicole K. Thomas ,  Marko Radosavljevic ,  Cheng-Ying Huang ,  Willy Rachmady ,  Gilbert Dewey ,  Ashish Agrawal

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

Abstract: Techniques are provided herein to form semiconductor devices having a stacked transistor configuration. In an example, an upper (e.g., n-channel) device and a lower (e.g., p-channel) device may both be gate-all-around (GAA) transistors each having any number of nanoribbons extending in the same direction where the upper device is located vertically above the lower device. According to some embodiments, an internal spacer structure extends between the nanoribbons of the upper device and the nanoribbons of the lower device along the vertical direction, where the spacer structure has a stepwise or an otherwise outwardly protruding profile as it extends between the nanoribbons of the upper device and the lower device. Accordingly, in one example, a gate structure formed around the nanoribbons of both the n-channel device and the p-channel device exhibits a greater width in the region between the nanoribbons of the n-channel device and the nanoribbons of the p-channel device.

公开(公告)号：US20230088578A1

公开(公告)日：2023-03-23

申请号：US17448385

申请日：2021-09-22

Applicant: INTEL CORPORATION

Inventor： Nicholas A. Thomson ,  Ayan Kar ,  Benjamin Orr ,  Kalyan C. Kolluru ,  Nathan D. Jack ,  Patrick Morrow ,  Cheng-Ying Huang ,  Charles C. Kuo

IPC: H01L27/02 ,  H01L27/092 ,  H01L29/06 ,  H01L29/417 ,  H01L29/423 ,  H01L29/786 ,  H01L21/02 ,  H01L29/66 ,  H01L21/8238

Abstract: Integrated circuits including lateral diodes. In an example, diodes are formed with laterally neighboring source and drain regions (diffusion regions) configured with different polarity epitaxial growths (e.g., p-type and n-type), to provide an anode and cathode of the diode. In some such cases, dopants may be used in the channel region to create or otherwise enhance a PN or PIN junction between the diffusion regions and the semiconductor material of a channel region. The channel region can be, for instance, one or more nanoribbons or other such semiconductor bodies that extend between the oppositely-doped diffusion regions. In some cases, nanoribbons making up the channel region are left unreleased, thereby preserving greater volume through which diode current can flow. Other features include skipped epitaxial regions, elongated gate structures, using isolation structures in place of gate structures, and/or sub-fin conduction paths that are supplemental or alternative to a channel-based conduction paths.

公开(公告)号：US20230087444A1

公开(公告)日：2023-03-23

申请号：US17448384

申请日：2021-09-22

Applicant: INTEL CORPORATION

Inventor： Nicholas A. Thomson ,  Ayan Kar ,  Benjamin Orr ,  Kalyan C. Kolluru ,  Nathan D. Jack ,  Patrick Morrow ,  Cheng-Ying Huang ,  Charles C. Kuo

IPC: H01L27/02 ,  H01L27/092 ,  H01L29/06 ,  H01L29/417 ,  H01L29/423 ,  H01L29/786 ,  H01L21/02 ,  H01L29/66 ,  H01L21/8238

Abstract: Integrated circuits including lateral diodes. In an example, diodes are formed with laterally neighboring source and drain regions (diffusion regions) configured with different polarity epitaxial growths (e.g., p-type and n-type), to provide an anode and cathode of the diode. In some such cases, dopants may be used in the channel region to create or otherwise enhance a PN or PIN junction between the diffusion regions and the semiconductor material of a channel region. The channel region can be, for instance, one or more nanoribbons or other such semiconductor bodies that extend between the oppositely-doped diffusion regions. In some cases, nanoribbons making up the channel region are left unreleased, thereby preserving greater volume through which diode current can flow. Other features include skipped epitaxial regions, elongated gate structures, using isolation structures in place of gate structures, and/or sub-fin conduction paths that are supplemental or alternative to a channel-based conduction path.

公开(公告)号：US11532719B2

公开(公告)日：2022-12-20

申请号：US16222946

申请日：2018-12-17

Applicant: Intel Corporation

Inventor： Kimin Jun ,  Jack T. Kavalieros ,  Gilbert Dewey ,  Willy Rachmady ,  Aaron Lilak ,  Brennen Mueller ,  Hui Jae Yoo ,  Patrick Morrow ,  Anh Phan ,  Cheng-Ying Huang ,  Ehren Mannebach

IPC: H01L29/423 ,  H01L29/66 ,  H01L29/49 ,  H01L29/45 ,  H01L29/786 ,  H01L21/762 ,  H01L21/02 ,  H01L29/06

Abstract: Embodiments herein describe techniques for a semiconductor device over a semiconductor substrate. A first bonding layer is above the semiconductor substrate. One or more nanowires are formed above the first bonding layer to be a channel layer. A gate electrode is around a nanowire, where the gate electrode is in contact with the first bonding layer and separated from the nanowire by a gate dielectric layer. A source electrode or a drain electrode is in contact with the nanowire, above a bonding area of a second bonding layer, and separated from the gate electrode by a spacer, where the second bonding layer is above and in direct contact with the first bonding layer.

公开(公告)号：US11508577B2

公开(公告)日：2022-11-22

申请号：US16024694

申请日：2018-06-29

Applicant: Intel Corporation

Inventor： Gilbert Dewey ,  Matthew Metz ,  Willy Rachmady ,  Sean Ma ,  Nicholas Minutillo ,  Cheng-Ying Huang ,  Tahir Ghani ,  Jack Kavalieros ,  Anand Murthy ,  Harold Kennel

IPC: H01L21/02 ,  H01L29/20 ,  H01L29/04 ,  H01L29/78 ,  H01L27/12

Abstract: Embodiments herein describe techniques, systems, and method for a semiconductor device. Embodiments herein may present a semiconductor device including a substrate and an insulator layer above the substrate. A channel area may include an III-V material relaxed grown on the insulator layer. A source area may be above the insulator layer, in contact with the insulator layer, and adjacent to a first end of the channel area. A drain area may be above the insulator layer, in contact with the insulator layer, and adjacent to a second end of the channel area that is opposite to the first end of the channel area. The source area or the drain area may include one or more seed components including a seed material with free surface. Other embodiments may be described and/or claimed.