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：US11664373B2

公开(公告)日：2023-05-30

申请号：US17555296

申请日：2021-12-17

Applicant: Intel Corporation

Inventor： Aaron Lilak ,  Patrick Morrow ,  Gilbert Dewey ,  Willy Rachmady ,  Rishabh Mehandru

IPC: H01L27/06 ,  H01L21/82 ,  H01L29/78 ,  H01L29/06 ,  H01L27/02 ,  H01L23/522 ,  H01L21/8234 ,  H01L21/822

CPC classification number: H01L27/0688 ,  H01L21/8221 ,  H01L21/823431 ,  H01L21/823481 ,  H01L23/5226 ,  H01L27/0207 ,  H01L29/0649 ,  H01L29/0673 ,  H01L29/0684 ,  H01L29/7851

Abstract: Embodiments herein describe techniques for an integrated circuit (IC). The IC may include a lower device layer that includes a first transistor structure, an upper device layer above the lower device layer including a second transistor structure, and an isolation wall that extends between the upper device layer and the lower device layer. The isolation wall may be in contact with an edge of a first gate structure of the first transistor structure and an edge of a second gate structure of the second transistor structure, and may have a first width to the edge of the first gate structure at the lower device layer, and a second width to the edge of the second gate structure at the upper device layer. The first width may be different from the second width. Other embodiments may be described and/or claimed.

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：US11569243B2

公开(公告)日：2023-01-31

申请号：US16140890

申请日：2018-09-25

Applicant: INTEL CORPORATION

Inventor： Abhishek A. Sharma ,  Willy Rachmady ,  Ravi Pillarisetty ,  Gilbert Dewey ,  Jack T. Kavalieros

IPC: H01L27/108 ,  H01L23/48

Abstract: A DRAM integrated circuit device is described in which at least some of the peripheral circuits associated with the memory arrays are provided on a first substrate. The memory arrays are provided on a second substrate stacked on the first substrate, thus forming a DRAM integrated circuit device on a stacked-substrate assembly. Vias that electrically connect the memory arrays on the second substrate to the peripheral circuits on the first substrate are fabricated using high aspect ratio via fabrication techniques.

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：US11515402B2

公开(公告)日：2022-11-29

申请号：US16081403

申请日：2016-03-30

Applicant: Intel Corporation

Inventor： Seung Hoon Sung ,  Robert B. Turkot ,  Marko Radosavljevic ,  Han Wui Then ,  Willy Rachmady ,  Sansaptak Dasgupta ,  Jack T. Kavalieros

IPC: H01L29/66 ,  H01L21/3065 ,  H01L29/08 ,  H01L29/49

Abstract: The present description relates to the fabrication of microelectronic transistor source and/or drain regions using angled etching. In one embodiment, a microelectronic transistor may be formed by using an angled etch to reduce the number masking steps required to form p-type doped regions and n-type doped regions. In further embodiments, angled etching may be used to form asymmetric spacers on opposing sides of a transistor gate, wherein the asymmetric spacers may result in asymmetric source/drain configurations.

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.

公开(公告)号：US20220344376A1

公开(公告)日：2022-10-27

申请号：US17864264

申请日：2022-07-13

Applicant: Intel Corporation

Inventor： Aaron D. Lilak ,  Anh Phan ,  Patrick Morrow ,  Willy Rachmady ,  Gilbert Dewey ,  Jessica M. Torres ,  Kimin Jun ,  Tristan A. Tronic ,  Christopher J. Jezewski ,  Hui Jae Yoo ,  Robert S. Chau ,  Chi-Hwa Tsang

IPC: H01L27/12 ,  H01L21/02 ,  H01L21/285 ,  H01L21/84 ,  H01L27/22 ,  H01L27/24 ,  H01L29/08 ,  H01L29/16 ,  H01L29/417 ,  H01L29/45 ,  H01L29/66 ,  H01L29/78

Abstract: A stacked device structure includes a first device structure including a first body that includes a semiconductor material, and a plurality of terminals coupled with the first body. The stacked device structure further includes an insulator between the first device structure and a second device structure. The second device structure includes a second body such as a fin structure directly above the insulator. The second device structure further includes a gate coupled to the fin structure, a spacer including a dielectric material adjacent to the gate, and an epitaxial structure adjacent to a sidewall of the fin structure and between the spacer and the insulator. A metallization structure is coupled to a sidewall surface of the epitaxial structure, and further coupled with one of the terminals of the first device.

公开(公告)号：US20220310605A1

公开(公告)日：2022-09-29

申请号：US17839338

申请日：2022-06-13

Applicant: Intel Corporation

Inventor： Gilbert Dewey ,  Patrick Morrow ,  Ravi Pillarisetty ,  Rishabh Mehandru ,  Cheng-ying Huang ,  Willy Rachmady ,  Aaron Lilak

IPC: H01L27/092 ,  H01L21/8238 ,  H01L25/07 ,  H01L27/06 ,  H01L29/06 ,  H01L29/778 ,  H01L29/78

Abstract: Multiple non-silicon semiconductor material layers may be stacked within a fin structure. The multiple non-silicon semiconductor material layers may include one or more layers that are suitable for P-type transistors. The multiple non-silicon semiconductor material layers may further include one or more one or more layers that are suited for N-type transistors. The multiple non-silicon semiconductor material layers may further include one or more intervening layers separating the N-type from the P-type layers. The intervening layers may be at least partially sacrificial, for example to allow one or more of a gate, source, or drain to wrap completely around a channel region of one or more of the N-type and P-type transistors.

公开(公告)号：US11430814B2

公开(公告)日：2022-08-30

申请号：US16957047

申请日：2018-03-05

Applicant: Intel Corporation

Inventor： Aaron D. Lilak ,  Anh Phan ,  Patrick Morrow ,  Willy Rachmady ,  Gilbert Dewey ,  Jessica M. Torres ,  Kimin Jun ,  Tristan A. Tronic ,  Christopher J. Jezewski ,  Hui Jae Yoo ,  Robert S. Chau ,  Chi-Hwa Tsang

IPC: H01L27/12 ,  H01L21/02 ,  H01L21/285 ,  H01L21/84 ,  H01L27/22 ,  H01L27/24 ,  H01L29/08 ,  H01L29/16 ,  H01L29/417 ,  H01L29/45 ,  H01L29/66 ,  H01L29/78

Abstract: A stacked device structure includes a first device structure including a first body that includes a semiconductor material, and a plurality of terminals coupled with the first body. The stacked device structure further includes an insulator between the first device structure and a second device structure. The second device structure includes a second body such as a fin structure directly above the insulator. The second device structure further includes a gate coupled to the fin structure, a spacer including a dielectric material adjacent to the gate, and an epitaxial structure adjacent to a sidewall of the fin structure and between the spacer and the insulator. A metallization structure is coupled to a sidewall surface of the epitaxial structure, and further coupled with one of the terminals of the first device.