公开(公告)号：US20250098239A1

公开(公告)日：2025-03-20

申请号：US18470493

申请日：2023-09-20

Applicant: Intel Corporation

Inventor： Seda Cekli ,  Makram Abd El Qader ,  Aaron D. Lilak ,  Anh Phan

IPC: H01L29/06 ,  H01L21/8234 ,  H01L27/088 ,  H01L29/08 ,  H01L29/423 ,  H01L29/778 ,  H01L29/786

Abstract: IC structures with air gap insulation in place of gate spacers are disclosed. An example IC structure includes a transistor comprising a channel region and a S/D region, a gate structure coupled to the channel region and comprising a gate electrode material and a first electrically conductive material, a S/D contact structure coupled to the S/D region and comprising a second electrically conductive material, a gap between the gate structure and the S/D contact structure, and a liner material over at least a portion of a sidewall of the region below the contact structure, the liner material comprising aluminum and oxygen.

公开(公告)号：US12107085B2

公开(公告)日：2024-10-01

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 ,  H01L21/822 ,  H01L21/8234 ,  H01L21/8238 ,  H01L21/8258 ,  H01L21/84 ,  H01L23/00 ,  H01L23/48 ,  H01L23/522 ,  H01L23/538 ,  H01L27/06 ,  H01L27/092

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：US12033896B2

公开(公告)日：2024-07-09

申请号：US17863292

申请日：2022-07-12

Applicant: Intel Corporation

Inventor： Aaron D. Lilak ,  Christopher J. Jezewski ,  Willy Rachmady ,  Rishabh Mehandru ,  Gilbert Dewey ,  Anh Phan

IPC: H01L21/8234 ,  H01L29/78

CPC classification number: H01L21/823431 ,  H01L29/7842 ,  H01L29/7845 ,  H01L29/7846 ,  H01L29/785

Abstract: In an embodiment of the present disclosure, a device structure includes a fin structure, a gate on the fin structure, and a source and a drain on the fin structure, where the gate is between the source and the drain. The device structure further includes an insulator layer having a first insulator layer portion adjacent to a sidewall of the source, a second insulator layer portion adjacent to a sidewall of the drain, and a third insulator layer portion therebetween adjacent to a sidewall of the gate, and two or more stressor materials adjacent to the insulator layer. The stressor materials can be tensile or compressively stressed and may strain a channel under the gate.

公开(公告)号：US11996411B2

公开(公告)日：2024-05-28

申请号：US16913796

申请日：2020-06-26

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

CPC classification number: H01L27/0924 ,  H01L29/0673 ,  H01L29/4232 ,  H01L29/775 ,  H01L29/7851 ,  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：US11830933B2

公开(公告)日：2023-11-28

申请号：US16240369

申请日：2019-01-04

Applicant: Intel Corporation

Inventor： Willy Rachmady ,  Gilbert Dewey ,  Jack T. Kavalieros ,  Aaron Lilak ,  Patrick Morrow ,  Anh Phan ,  Cheng-Ying Huang ,  Ehren Mannebach

IPC: H01L29/00 ,  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：US11573798B2

公开(公告)日：2023-02-07

申请号：US16290544

申请日：2019-03-01

Applicant: Intel Corporation

Inventor： Aaron D. Lilak ,  Gilbert W. Dewey ,  Willy Rachmady ,  Rishabh Mehandru ,  Ehren Mannebach ,  Cheng-Ying Huang ,  Anh Phan ,  Patrick Morrow

IPC: H01L29/772 ,  G06F9/30 ,  G06F9/34 ,  H01L29/78 ,  H01L29/66 ,  H01L29/786 ,  H01L29/775

Abstract: Disclosed herein are stacked transistors with different gate lengths in different device strata, as well as related methods and devices. In some embodiments, an integrated circuit structure may include stacked strata of transistors, with two different device strata having different gate lengths.

公开(公告)号：US11437283B2

公开(公告)日：2022-09-06

申请号：US16355195

申请日：2019-03-15

Applicant: INTEL CORPORATION

Inventor： Aaron D. Lilak ,  Ehren Mannebach ,  Anh Phan ,  Richard E. Schenker ,  Stephanie A. Bojarski ,  Willy Rachmady ,  Patrick R. Morrow ,  Jeffery D. Bielefeld ,  Gilbert Dewey ,  Hui Jae Yoo

IPC: H01L21/8234 ,  H01L27/088 ,  H01L29/78 ,  H01L29/06 ,  H01L23/532 ,  H01L23/48

Abstract: Backside contact structures include etch selective materials to facilitate backside contact formation. An integrated circuit structure includes a frontside contact region, a device region below the frontside contact region, and a backside contact region below the device region. The device region includes a transistor. The backside contact region includes a first dielectric material under a source or drain region of the transistor, a second dielectric material laterally adjacent to the first dielectric material and under a gate structure of the transistor. A non-conductive spacer is between the first and second dielectric materials. The first and second dielectric materials are selectively etchable with respect to one another and the spacer. The backside contact region may include an interconnect feature that, for instance, passes through the first dielectric material and contacts a bottom side of the source/drain region, and/or passes through the second dielectric material and contacts the gate structure.

公开(公告)号：US11348916B2

公开(公告)日：2022-05-31

申请号：US16024076

申请日：2018-06-29

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：US20200295127A1

公开(公告)日：2020-09-17

申请号：US16351921

申请日：2019-03-13

Applicant: Intel Corporation

Inventor： Ehren Mannebach ,  Aaron D. Lilak ,  Anh Phan ,  Cheng-Ying Huang ,  Gilbert W. Dewey ,  Patrick Morrow ,  Rishabh Mehandru ,  Roza Kotlyar ,  Sean T. Ma ,  Willy Rachmady

IPC: H01L29/04 ,  H01L29/78 ,  H01L29/06 ,  H01L27/092 ,  H01L25/11 ,  H01L23/00 ,  H01L23/522 ,  H01L29/16 ,  H01L29/20 ,  H01L21/8238 ,  H01L29/66

Abstract: Disclosed herein are stacked transistors with different crystal orientations in different device strata, as well as related methods and devices. In some embodiments, an integrated circuit structure may include stacked strata of transistors, wherein the channel materials in at least some of the strata have different crystal orientations.

公开(公告)号：US12224202B2

公开(公告)日：2025-02-11

申请号：US18356780

申请日：2023-07-21

Applicant: Intel Corporation

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

IPC: H01L21/762 ,  H01L21/02 ,  H01L21/225 ,  H01L21/265 ,  H01L21/266 ,  H01L21/311 ,  H01L29/06 ,  H01L29/78

Abstract: Embodiments of the present disclosure may generally relate to systems, apparatus, and/or processes to form volumes of oxide within a fin, such as a Si fin. In embodiments, this may be accomplished by applying a catalytic oxidant material on a side of a fin and then annealing to form a volume of oxide. In embodiments, this may be accomplished by using a plasma implant technique or a beam-line implant technique to introduce oxygen ions into an area of the fin and then annealing to form a volume of oxide. Processes described here may be used manufacture a transistor, a stacked transistor, or a three-dimensional (3-D) monolithic stacked transistor.