Patents Examined by Adams S Bowen
  • Patent number: 11688637
    Abstract: Wrap-around contact structures for semiconductor fins, and methods of fabricating wrap-around contact structures for semiconductor fins, are described. In an example, an integrated circuit structure includes a semiconductor fin having a first portion protruding through a trench isolation region. A gate structure is over a top and along sidewalls of the first portion of the semiconductor fin. A source or drain region is at a first side of the gate structure, the source or drain region including an epitaxial structure on a second portion of the semiconductor fin. The epitaxial structure has substantially vertical sidewalls in alignment with the second portion of the semiconductor fin. A conductive contact structure is along sidewalls of the second portion of the semiconductor fin and along the substantially vertical sidewalls of the epitaxial structure.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: June 27, 2023
    Assignee: Intel Corporation
    Inventor: Rishabh Mehandru
  • Patent number: 11688807
    Abstract: In an embodiment, a device includes a first fin extending from a substrate. The device also includes a first gate stack over and along sidewalls of the first fin. The device also includes a first gate spacer disposed along a sidewall of the first gate stack. The device also includes and a first source/drain region in the first fin and adjacent the first gate spacer, the first source/drain region including a first epitaxial layer on the first fin, the first epitaxial layer having a first dopant concentration of boron. The device also includes and a second epitaxial layer on the first epitaxial layer, the second epitaxial layer having a second dopant concentration of boron, the second dopant concentration being greater than the first dopant concentration.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: June 27, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Hung-Tai Chang, Han-Yu Tang, Ming-Hua Yu, Yee-Chia Yeo
  • Patent number: 11688792
    Abstract: Dual self-aligned gate endcap (SAGE) architectures, and methods of fabricating dual self-aligned gate endcap (SAGE) architectures, are described. In an example, an integrated circuit structure includes a first semiconductor fin having a cut along a length of the first semiconductor fin. A second semiconductor fin is parallel with the first semiconductor fin. A first gate endcap isolation structure is between the first semiconductor fin and the second semiconductor fin. A second gate endcap isolation structure is in a location of the cut along the length of the first semiconductor fin.
    Type: Grant
    Filed: November 15, 2021
    Date of Patent: June 27, 2023
    Assignee: Intel Corporation
    Inventors: Sairam Subramanian, Walid M. Hafez, Sridhar Govindaraju, Mark Liu, Szuya S. Liao, Chia-Hong Jan, Nick Lindert, Christopher Kenyon
  • Patent number: 11676967
    Abstract: Disclosed is a semiconductor device comprising a substrate, a plurality of active patterns that protrude from the substrate, a device isolation layer between the active patterns, and a passivation layer that covers a top surface of the device isolation layer and exposes upper portions of the active patterns. The device isolation layer includes a plurality of first isolation parts adjacent to facing sidewalls of the active patterns, and a second isolation part between the first isolation parts. A top surface of the second isolation part is located at a lower level than that of top surfaces of the first isolation parts.
    Type: Grant
    Filed: May 20, 2022
    Date of Patent: June 13, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Guyoung Cho, Subin Shin, Donghyun Roh, Byung-Suk Jung, Sangjin Hyun
  • Patent number: 11676868
    Abstract: Techniques described herein enable respective (different) types of metal silicide layers to be formed for p-type source/drain regions and n-type source/drain regions in a selective manner. For example, a p-type metal silicide layer may be selectively formed over a p-type source/drain region (e.g., such that the p-type metal silicide layer is not formed over the n-type source/drain region) and an n-type metal silicide layer may be formed over the n-type source/drain region (which may be selective or non-selective). This provides a low Schottky barrier height between the p-type metal silicide layer and the p-type source/drain region, as well as a low Schottky barrier height between the n-type metal silicide layer and the n-type source/drain region. This reduces the contact resistance for both p-type source/drain regions and n-type source/drain regions.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: June 13, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Wei-Yip Loh, Yan-Ming Tsai, Yi-Ning Tai, Raghunath Putikam, Hung-Yi Huang, Hung-Hsu Chen, Chih-Wei Chang
  • Patent number: 11678489
    Abstract: A three-dimensional flash memory device including a lower and upper word line stack; a cell channel structure; and a dummy channel structure, wherein the cell channel structure includes a lower cell channel structure; an upper cell channel structure; and a cell channel enlarged portion between the lower and upper cell channel structures and having a width greater than that of the lower cell channel structure, wherein the dummy channel structure includes a lower dummy channel structure; an upper dummy channel structure; and a dummy channel enlarged portion between the lower and upper dummy channel structures, the dummy channel enlarged portion having a width greater than that of the lower dummy channel structure, wherein a difference between the width of the dummy channel enlarged portion and the lower dummy channel structure is greater than a difference between the width of the cell channel enlarged portion and the lower cell channel structure.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: June 13, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Jisung Cheon
  • Patent number: 11670568
    Abstract: A semiconductor device including a semiconductor chip having a first surface and a second surface opposite to the first surface, a first heat dissipation member on the second surface of the semiconductor chip, the first heat dissipation member having a vertical thermal conductivity in a direction perpendicular to the second surface, and a horizontal thermal conductivity in a direction parallel to the second surface, the first vertical thermal conductivity being smaller than the first horizontal thermal conductivity, and a second heat dissipation member comprising a vertical pattern penetrating the first heat dissipation member, the second heat dissipation member having a vertical thermal conductivity that is greater than the vertical thermal conductivity of the first heat dissipation member may be provided.
    Type: Grant
    Filed: September 23, 2020
    Date of Patent: June 6, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seonho Lee, Jinsu Kim, Junwoo Myung, Yongjin Park, Jaekul Lee
  • Patent number: 11670638
    Abstract: A semiconductor device includes a plurality of active fins extending in a first direction, and spaced apart from each other in a second direction, the plurality of active fins having upper surfaces of different respective heights, a gate structure extending in the second across the plurality of active fins, a device isolation film on the substrate, a source/drain region on the plurality of active fins, and including an epitaxial layer on the plurality of active fins, an insulating spacer on an upper surface of the device isolation film and having a lateral asymmetry with respect to a center line of the source/drain region in a cross section taken along the second direction, an interlayer insulating region on the device isolation film and on the gate structure and the source/drain region, and a contact structure in the interlayer insulating region and electrically connected to the source/drain region.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: June 6, 2023
    Inventors: Yang Xu, Hyunkwan Yu, Namkyu Cho, Dongmyoung Kim, Kanghun Moon, Sanggil Lee, Sihyung Lee
  • Patent number: 11658074
    Abstract: The present disclosure provides a fabrication method that includes providing a workpiece having a semiconductor substrate that includes a first circuit area and a second circuit area; forming a first active region in the first circuit area and a second active region on the second circuit area; forming first stacks with a first gate spacing on the first active region and second gate stacks with a second gate spacing on the second active region, the second gate spacing being different from the first gate spacing; performing an ion implantation to introduce a doping species to the first active region; performing an etching process, thereby recessing both first source/drain regions of the first active region with a first etch rate and second source/drain regions of the second active region; and epitaxially growing first source/drain features within the first source/drain regions and second source/drain features within the second source/drain regions.
    Type: Grant
    Filed: April 8, 2021
    Date of Patent: May 23, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Ta-Chun Lin, Kuo-Hua Pan, Jhon Jhy Liaw
  • Patent number: 11652156
    Abstract: Embodiments of the present invention are directed to methods and resulting structures for nanosheet devices having asymmetric gate stacks. In a non-limiting embodiment of the invention, a nanosheet stack is formed over a substrate. The nanosheet stack includes alternating semiconductor layers and sacrificial layers. A sacrificial liner is formed over the nanosheet stack and a dielectric gate structure is formed over the nanosheet stack and the sacrificial liner. A first inner spacer is formed on a sidewall of the sacrificial layers. A gate is formed over channel regions of the nanosheet stack. The gate includes a conductive bridge that extends over the substrate in a direction orthogonal to the nanosheet stack. A second inner spacer is formed on a sidewall of the gate. The first inner spacer is formed prior to the gate stack, while the second inner spacer is formed after, and consequently, the gate stack is asymmetrical.
    Type: Grant
    Filed: October 21, 2021
    Date of Patent: May 16, 2023
    Assignee: International Business Machines Corporation
    Inventors: Ruilong Xie, Carl Radens, Kangguo Cheng, Juntao Li, Dechao Guo, Tao Li, Tsung-Sheng Kang
  • Patent number: 11652155
    Abstract: In an embodiment, a method of forming a semiconductor device includes forming a dummy gate stack over a substrate; forming a first spacer layer over the dummy gate stack; oxidizing a surface of the first spacer layer to form a sacrificial liner; forming one or more second spacer layers over the sacrificial liner; forming a third spacer layer over the one or more second spacer layers; forming an inter-layer dielectric (ILD) layer over the third spacer layer; etching at least a portion of the one or more second spacer layers to form an air gap, the air gap being interposed between the third spacer layer and the first spacer layer; and forming a refill layer to fill an upper portion of the air gap.
    Type: Grant
    Filed: May 24, 2022
    Date of Patent: May 16, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Ming-Jhe Sie, Chen-Huang Huang, Shao-Hua Hsu, Cheng-Chung Chang, Szu-Ping Lee, An Chyi Wei, Shiang-Bau Wang, Chia-Jen Chen
  • Patent number: 11652005
    Abstract: An anchored cut-metal gate (CMG) plug, a semiconductor device including the anchored CMG plug and methods of forming the semiconductor device are disclosed herein. The method includes performing a series of etching processes to form a trench through a metal gate electrode, through an isolation region, and into a semiconductor substrate. The trench cuts-through and separates the metal gate electrode into a first metal gate and a second metal gate and forms a recess in the semiconductor substrate. Once the trench has been formed, a dielectric plug material is deposited into the trench to form a CMG plug that is anchored within the recess of the semiconductor substrate and separates the first and second metal gates. As such, the anchored CMG plug provides high levels of resistance to reduce leakage current within the semiconductor device during operation and allowing for improved V-trigger performance of the semiconductor device.
    Type: Grant
    Filed: February 28, 2022
    Date of Patent: May 16, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yi-Chun Chen, Ryan Chia-Jen Chen, Shu-Yuan Ku, Ya-Yi Tsai, I-Wei Yang
  • Patent number: 11652139
    Abstract: A semiconductor device includes a first universal device formed over a substrate, an isolation structure over the first universal device, and a second universal device over the isolation structure. The first universal device includes a first source/drain (S/D) region formed over the substrate, a first channel region over the first S/D region, a second S/D region over the first channel region. The second universal device includes a third S/D region positioned over the isolation structure, a second channel region over the third S/D region, a fourth S/D region over the second channel region. The first universal device is one of a first n-type transistor according to first applied bias voltages, and a first p-type transistor according to second applied bias voltages. The second universal device is one of a second n-type transistor according to third applied bias voltages, and a second p-type transistor according to fourth applied bias voltages.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: May 16, 2023
    Assignee: Tokyo Electron Limited
    Inventors: Mark I. Gardner, H. Jim Fulford
  • Patent number: 11646247
    Abstract: Various embodiments of the present disclosure are directed towards a semiconductor structure including a first through substrate via (TSV) within a substrate. The first TSV comprises a first doped region extending from a top surface of the substrate to a bottom surface of the substrate. A conductive via overlies the top surface of the substrate and is electrically coupled to the first TSV.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: May 9, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yu-Yang Shen, Chien-Hsien Tseng, Dun-Nian Yaung, Nai-Wen Cheng, Pao-Tung Chen
  • Patent number: 11641758
    Abstract: A display device may include a hole, a display element, a switching element, a groove, a planarization layer, and a cover layer. The switching element may be electrically connected to the display element. The encapsulation layer may cover the display element. The groove may be located between the hole and the display element. A portion of the planarization layer may be located between a first edge of the planarization layer and a second edge of the planarization and may be located in the groove. The first edge of the planarization layer may be located closer to the display element than the second edge of the planarization layer. The cover layer may at least partially cover the first edge of the planarization layer.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: May 2, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dongjin Moon, Yeri Jeong, Inyoung Han
  • Patent number: 11631744
    Abstract: Disclosed are a semiconductor structure and a forming method thereof.
    Type: Grant
    Filed: May 6, 2021
    Date of Patent: April 18, 2023
    Assignees: SEMICONDUCTOR MANUFACTURING INTERNATIONAL (SHANGHAI) CORPORATION, SEMICONDUCTOR MANUFACTURING INTERNATIONAL (BEIJING) CORPORATION
    Inventor: Jisong Jin
  • Patent number: 11630212
    Abstract: A photo-detecting apparatus is provided. The photo-detecting apparatus includes: a substrate made by a first material or a first material-composite; an absorption layer made by a second material or a second material-composite, the absorption layer being supported by the substrate and the absorption layer including: a first surface; a second surface arranged between the first surface and the substrate; and a channel region having a dopant profile with a peak dopant concentration equal to or more than 1×1015 cm?3, wherein a distance between the first surface and a location of the channel region having the peak dopant concentration is less than a distance between the second surface and the location of the channel region having the peak dopant concentration, and wherein the distance between the first surface and the location of the channel region having the peak dopant concentration is not less than 30 nm.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: April 18, 2023
    Assignee: Artilux, Inc.
    Inventors: Szu-Lin Cheng, Chien-Yu Chen, Shu-Lu Chen, Yun-Chung Na, Ming-Jay Yang, Han-Din Liu, Che-Fu Liang, Jung-Chin Chiang, Yen-Cheng Lu, Yen-Ju Lin
  • Patent number: 11631764
    Abstract: First and second p-type semiconductor regions (electric-field relaxation layers) are formed by ion implantation using a dummy gate and side wall films on both sides of the dummy gate as a mask. In this manner, it is possible to reduce a distance between the first p-type semiconductor region and a trench and a distance between the second p-type semiconductor region and the trench, and symmetry of the first and second p-type semiconductor regions with respect to the trench can be enhanced. As a result, semiconductor elements can be miniaturized, and on-resistance and an electric-field relaxation effect, which are in a trade-off relationship, can be balanced, so that characteristics of the semiconductor elements can be improved.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: April 18, 2023
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Kenichi Hisada, Koichi Arai, Hironobu Miyamoto
  • Patent number: 11626545
    Abstract: A light emitting device is disclosed. In an embodiment a light-emitting device includes a pixel comprising at least three sub-pixels, wherein the at least three sub-pixel include a first sub-pixel including a first conversion element, wherein the first conversion element includes a green phosphor, a second sub-pixel including a second conversion element, wherein the second conversion element includes a red phosphor and a third sub-pixel free of a conversion element, wherein the third sub-pixel is configured to emit blue primary radiation, wherein each sub-pixels has an edge length of at most 100 ?m, and wherein the pixel is a linear chain of sub-pixels and a plurality of pixels is arranged in a two dimensional ordered pattern so that a first sub-pixel is never adjacent to a third sub-pixel in a vertical direction and in a horizontal direction of the ordered pattern.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: April 11, 2023
    Assignee: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Benjamin Daniel Mangum, David O'Brien, Britta Göötz
  • Patent number: 11616193
    Abstract: A semiconductor device includes: a substrate comprising a magnetic tunneling junction (MTJ) region and a logic region, a MTJ on the MTJ region, a top electrode on the MTJ, a connecting structure on the top electrode, and a first metal interconnection on the logic region. Preferably, the first metal interconnection includes a via conductor on the substrate and a trench conductor, in which a bottom surface of the trench conductor is lower than a bottom surface of the connecting structure.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: March 28, 2023
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Hui-Lin Wang, Po-Kai Hsu, Chen-Yi Weng, Jing-Yin Jhang, Yu-Ping Wang, Hung-Yueh Chen