Patents by Inventor Michael L. Hattendorf
Michael L. Hattendorf has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20250142939Abstract: Embodiments of the disclosure are in the field of advanced integrated circuit structure fabrication and, in particular, 10 nanometer node and smaller integrated circuit structure fabrication and the resulting structures. In an example, an integrated circuit structure includes a P-type semiconductor device above a substrate and including first and second semiconductor source or drain regions adjacent first and second sides of a first gate electrode. A first metal silicide layer is directly on the first and second semiconductor source or drain regions. An N-type semiconductor device includes third and fourth semiconductor source or drain regions adjacent first and second sides of a second gate electrode. A second metal silicide layer is directly on the third and fourth semiconductor source or drain regions, respectively. The first metal silicide layer comprises at least one metal species not included in the second metal silicide layer.Type: ApplicationFiled: January 2, 2025Publication date: May 1, 2025Inventors: Jeffrey S. LEIB, Srijit MUKHERJEE, Vinay BHAGWAT, Michael L. HATTENDORF, Christopher P. AUTH
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Patent number: 12284826Abstract: Embodiments of the disclosure are in the field of advanced integrated circuit structure fabrication and, in particular, 10 nanometer node and smaller integrated circuit structure fabrication and the resulting structures. In an example, an integrated circuit structure includes a first isolation structure over a first end of a fin. A gate structure is over the fin and is spaced apart from the first isolation structure along the direction. A second isolation structure is over a second end of the fin, the second end opposite the first end. The second isolation structure is spaced apart from the gate structure. The first isolation structure and the second isolation structure both comprise a first dielectric material laterally surrounding a recessed second dielectric material distinct from the first dielectric material. The recessed second dielectric material laterally surrounds at least a portion of a third dielectric material different from the first and second dielectric materials.Type: GrantFiled: January 12, 2024Date of Patent: April 22, 2025Assignee: Intel CorporationInventors: Byron Ho, Chun-Kuo Huang, Erica Thompson, Jeanne Luce, Michael L. Hattendorf, Christopher P. Auth, Ebony L. Mays
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Publication number: 20250126869Abstract: Embodiments of the disclosure are in the field of advanced integrated circuit structure fabrication and, in particular, 10 nanometer node and smaller integrated circuit structure fabrication and the resulting structures. In an example, an integrated circuit structure includes a fin comprising silicon, the fin having a lower fin portion and an upper fin portion. A gate electrode is over the upper fin portion of the fin, the gate electrode having a first side opposite a second side. A first epitaxial source or drain structure is embedded in the fin at the first side of the gate electrode. A second epitaxial source or drain structure is embedded in the fin at the second side of the gate electrode, the first and second epitaxial source or drain structures comprising silicon and germanium and having a match-stick profile.Type: ApplicationFiled: December 23, 2024Publication date: April 17, 2025Inventors: Subhash JOSHI, Michael J. JACKSON, Michael L. HATTENDORF
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Publication number: 20250113586Abstract: An integrated circuit structure comprises a fin extending from a substrate, the fin comprising source and drain regions, and a channel region between the source and drain regions. A multilayer high-k gate stack comprising a plurality of materials extends conformally over the fin over the channel region. A gate electrode is over and on a topmost material in the multilayer high-k gate stack. Fluorine is implanted in the substrate beneath the multilayer high-k gate stack or in the plurality of materials comprising the multilayer high-k gate stack.Type: ApplicationFiled: September 29, 2023Publication date: April 3, 2025Inventors: Rahul PANDEY, Yang CAO, Rahul RAMAMURTHY, Jubin NATHAWAT, Michael L. HATTENDORF, Jae HUR, Anant H. JAHAGIRDAR, Steven R. NOVAK, Tao CHU, Yanbin LUO, Minwoo JANG, Paul A. PACKAN, Owen Y. LOH, David J. TOWNER
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Publication number: 20250113516Abstract: An integrated circuit (IC) device includes a transistor channel region within (and over a base of) a semiconductor fin, a gate structure over the fin, an isolation or dielectric material adjacent the base of the fin, and an intervening spacer material adjacent the fin, over the dielectric material, and between the channel region (and gate structure) and the isolation or dielectric material. The intervening spacer material may be at substantially equal heights on both sides of the fin. The intervening spacer material may have a height or thickness that is substantial portion of the height of the fin. The spacer and isolation materials may be on both sides of the fin, and between the fin and adjacent fins.Type: ApplicationFiled: September 29, 2023Publication date: April 3, 2025Applicant: Intel CorporationInventors: Kiran Chikkadi, Michael L. Hattendorf, Darshil Gala, Maheshwar Ghimire, Ryan Wood
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Publication number: 20250113598Abstract: An integrated circuit (IC) device includes n- and p-type transistors with and without threshold voltage shifts using a common dopant material in a gate dielectric. The IC device includes at least four threshold voltage for each of n- and p-type transistors. Besides volumeless doping of gate dielectrics, work function metals are used in both n- and p-type transistors. A single dipole dopant may be concurrently introduced into and through similar gate dielectrics in both n- and p-type transistors to achieve consistent threshold voltage shifts with minimal process variation.Type: ApplicationFiled: September 29, 2023Publication date: April 3, 2025Applicant: Intel CorporationInventors: Dan Lavric, Jubin Nathawat, Orb Acton, Michal Mleczko, Owen Loh, Michael L. Hattendorf
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Publication number: 20250098258Abstract: Embodiments of the disclosure are in the field of advanced integrated circuit structure fabrication and, in particular, 10 nanometer node and smaller integrated circuit structure fabrication and the resulting structures. In an example, an integrated circuit structure includes a fin. An isolation structure surrounds a lower fin portion, the isolation structure comprising an insulating material having a top surface, and a semiconductor material on a portion of the top surface of the insulating material, wherein the semiconductor material is separated from the fin. A gate dielectric layer is over the top of an upper fin portion and laterally adjacent the sidewalls of the upper fin portion, the gate dielectric layer further on the semiconductor material on the portion of the top surface of the insulating material. A gate electrode is over the gate dielectric layer.Type: ApplicationFiled: December 5, 2024Publication date: March 20, 2025Inventors: Andrew W. YEOH, Ilsup JIN, Angelo KANDAS, Michael L. HATTENDORF, Christopher P. AUTH
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Patent number: 12255247Abstract: Embodiments of the disclosure are in the field of advanced integrated circuit structure fabrication and, in particular, 10 nanometer node and smaller integrated circuit structure fabrication and the resulting structures. In an example, an integrated circuit structure includes a fin. A gate dielectric layer is over the top of the fin and laterally adjacent the sidewalls of the fin. A gate electrode is over the gate dielectric layer over the top of the fin and laterally adjacent the sidewalls of the fin. First and second semiconductor source or drain regions are adjacent the first and second sides of the gate electrode, respectively. First and second trench contact structures are over the first and second semiconductor source or drain regions, respectively, the first and second trench contact structures both comprising a U-shaped metal layer and a T-shaped metal layer on and over the entirety of the U-shaped metal layer.Type: GrantFiled: January 18, 2024Date of Patent: March 18, 2025Assignee: Intel CorporationInventors: Subhash M. Joshi, Jeffrey S. Leib, Michael L. Hattendorf
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Patent number: 12225740Abstract: Embodiments of the disclosure are in the field of advanced integrated circuit structure fabrication and, in particular, 10 nanometer node and smaller integrated circuit structure fabrication and the resulting structures. In an example, an integrated circuit structure includes a P-type semiconductor device above a substrate and including first and second semiconductor source or drain regions adjacent first and second sides of a first gate electrode. A first metal silicide layer is directly on the first and second semiconductor source or drain regions. An N-type semiconductor device includes third and fourth semiconductor source or drain regions adjacent first and second sides of a second gate electrode. A second metal silicide layer is directly on the third and fourth semiconductor source or drain regions, respectively. The first metal silicide layer comprises at least one metal species not included in the second metal silicide layer.Type: GrantFiled: February 7, 2024Date of Patent: February 11, 2025Assignee: Intel CorporationInventors: Jeffrey S. Leib, Srijit Mukherjee, Vinay Bhagwat, Michael L. Hattendorf, Christopher P. Auth
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Publication number: 20250022939Abstract: Embodiments of the disclosure are in the field of advanced integrated circuit structure fabrication and, in particular, 10 nanometer node and smaller integrated circuit structure fabrication and the resulting structures. In an example, an integrated circuit structure includes first and second gate dielectric layers over a fin. First and second gate electrodes are over the first and second gate dielectric layers, respectively, the first and second gate electrodes both having an insulating cap having a top surface. First dielectric spacer are adjacent the first side of the first gate electrode. A trench contact structure is over a semiconductor source or drain region adjacent first and second dielectric spacers, the trench contact structure comprising an insulating cap on a conductive structure, the insulating cap of the trench contact structure having a top surface substantially co-planar with the insulating caps of the first and second gate electrodes.Type: ApplicationFiled: September 27, 2024Publication date: January 16, 2025Inventors: Andrew W. YEOH, Tahir GHANI, Atul MADHAVAN, Michael L. HATTENDORF, Christopher P. AUTH
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Patent number: 12199168Abstract: Embodiments of the disclosure are in the field of advanced integrated circuit structure fabrication and, in particular, 10 nanometer node and smaller integrated circuit structure fabrication and the resulting structures. In an example, an integrated circuit structure includes a fin. An isolation structure surrounds a lower fin portion, the isolation structure comprising an insulating material having a top surface, and a semiconductor material on a portion of the top surface of the insulating material, wherein the semiconductor material is separated from the fin. A gate dielectric layer is over the top of an upper fin portion and laterally adjacent the sidewalls of the upper fin portion, the gate dielectric layer further on the semiconductor material on the portion of the top surface of the insulating material. A gate electrode is over the gate dielectric layer.Type: GrantFiled: June 24, 2022Date of Patent: January 14, 2025Assignee: Intel CorporationInventors: Andrew W. Yeoh, Ilsup Jin, Angelo Kandas, Michael L Hattendorf, Christopher P. Auth
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Patent number: 12199167Abstract: Embodiments of the disclosure are in the field of advanced integrated circuit structure fabrication and, in particular, 10 nanometer node and smaller integrated circuit structure fabrication and the resulting structures. In an example, an integrated circuit structure includes a first silicon fin having a longest dimension along a first direction. A second silicon fin having a longest dimension is along the first direction. An insulator material is between the first silicon fin and the second silicon fin. A gate line is over the first silicon fin and over the second silicon fin along a second direction, the second direction orthogonal to the first direction, the gate line having a first side and a second side, wherein the gate line has a discontinuity over the insulator material, the discontinuity filled by a dielectric plug.Type: GrantFiled: March 29, 2021Date of Patent: January 14, 2025Assignee: Intel CorporationInventors: Byron Ho, Michael L. Hattendorf, Christopher P. Auth
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Patent number: 12165928Abstract: Integrated circuits including MOSFETs with selectively recessed gate electrodes. Transistors having recessed gate electrodes with reduced capacitive coupling area to adjacent source and drain contact metallization are provided alongside transistors with gate electrodes that are non-recessed and have greater z-height. In embodiments, analog circuits employ transistors with gate electrodes of a given z-height while logic gates employ transistors with recessed gate electrodes of lesser z-height. In embodiments, subsets of substantially planar gate electrodes are selectively etched back to differentiate a height of the gate electrode based on a given transistor's application within a circuit.Type: GrantFiled: October 19, 2021Date of Patent: December 10, 2024Assignee: Intel CorporationInventors: Srijit Mukherjee, Christopher J. Wiegand, Tyler J. Weeks, Mark Y. Liu, Michael L Hattendorf
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Publication number: 20240405101Abstract: Confined epitaxial regions for semiconductor devices and methods of fabricating semiconductor devices having confined epitaxial regions are described. For example, a semiconductor structure includes a plurality of parallel semiconductor fins disposed above and continuous with a semiconductor substrate. An isolation structure is disposed above the semiconductor substrate and adjacent to lower portions of each of the plurality of parallel semiconductor fins. An upper portion of each of the plurality of parallel semiconductor fins protrudes above an uppermost surface of the isolation structure. Epitaxial source and drain regions are disposed in each of the plurality of parallel semiconductor fins adjacent to a channel region in the upper portion of the semiconductor fin. The epitaxial source and drain regions do not extend laterally over the isolation structure.Type: ApplicationFiled: August 12, 2024Publication date: December 5, 2024Inventors: Szuya S. LIAO, Michael L. HATTENDORF, Tahir GHANI
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Patent number: 12142667Abstract: Embodiments of the disclosure are in the field of advanced integrated circuit structure fabrication and, in particular, 10 nanometer node and smaller integrated circuit structure fabrication and the resulting structures. In an example, an integrated circuit structure includes first and second gate dielectric layers over a fin. First and second gate electrodes are over the first and second gate dielectric layers, respectively, the first and second gate electrodes both having an insulating cap having a top surface. First dielectric spacer are adjacent the first side of the first gate electrode. A trench contact structure is over a semiconductor source or drain region adjacent first and second dielectric spacers, the trench contact structure comprising an insulating cap on a conductive structure, the insulating cap of the trench contact structure having a top surface substantially co-planar with the insulating caps of the first and second gate electrodes.Type: GrantFiled: January 5, 2023Date of Patent: November 12, 2024Assignee: Intel CorporationInventors: Andrew W. Yeoh, Tahir Ghani, Atul Madhavan, Michael L. Hattendorf, Christopher P. Auth
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Publication number: 20240347394Abstract: Integrated circuits including MOSFETs with selectively recessed gate electrodes. Transistors having recessed gate electrodes with reduced capacitive coupling area to adjacent source and drain contact metallization are provided alongside transistors with gate electrodes that are non-recessed and have greater z-height. In embodiments, analog circuits employ transistors with gate electrodes of a given z-height while logic gates employ transistors with recessed gate electrodes of lesser z-height. In embodiments, subsets of substantially planar gate electrodes are selectively etched back to differentiate a height of the gate electrode based on a given transistor's application within a circuit.Type: ApplicationFiled: June 27, 2024Publication date: October 17, 2024Inventors: Srijit MUKHERJEE, Christopher J. WIEGAND, Tyler J. WEEKS, Mark Y. LIU, Michael L. HATTENDORF
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Publication number: 20240332399Abstract: Embodiments of the disclosure are in the field of advanced integrated circuit structure fabrication and, in particular, 10 nanometer node and smaller integrated circuit structure fabrication and the resulting structures. In an example, a method includes forming a plurality of fins and forming a plurality of gate structures over the plurality of fins. A dielectric material structure is formed between adjacent ones of the plurality of gate structures. A portion of a first of the plurality of gate structures is removed to expose a first portion of each of the plurality of fins, and a portion of a second of the plurality of gate structures is removed to expose a second portion of each of the plurality of fins. The exposed first portion of each of the plurality of fins is removed, but the exposed second portion of each of the plurality of fins is not removed.Type: ApplicationFiled: June 3, 2024Publication date: October 3, 2024Inventors: Tahir GHANI, Byron HO, Michael L. HATTENDORF, Christopher P. AUTH
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Patent number: 12094955Abstract: Confined epitaxial regions for semiconductor devices and methods of fabricating semiconductor devices having confined epitaxial regions are described. For example, a semiconductor structure includes a plurality of parallel semiconductor fins disposed above and continuous with a semiconductor substrate. An isolation structure is disposed above the semiconductor substrate and adjacent to lower portions of each of the plurality of parallel semiconductor fins. An upper portion of each of the plurality of parallel semiconductor fins protrudes above an uppermost surface of the isolation structure. Epitaxial source and drain regions are disposed in each of the plurality of parallel semiconductor fins adjacent to a channel region in the upper portion of the semiconductor fin. The epitaxial source and drain regions do not extend laterally over the isolation structure.Type: GrantFiled: March 13, 2023Date of Patent: September 17, 2024Assignee: Intel CorporationInventors: Szuya S. Liao, Michael L. Hattendorf, Tahir Ghani
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Publication number: 20240276698Abstract: Embodiments of the disclosure are in the field of advanced integrated circuit structure fabrication and, in particular, 10 nanometer node and smaller integrated circuit structure fabrication and the resulting structures. In an example, an integrated circuit structure includes a fin. A first isolation structure separates a first end of a first portion of the fin from a first end of a second portion of the fin, the first end of the first portion of the fin having a depth. A gate structure is over the top of and laterally adjacent to the sidewalls of a region of the first portion of the fin. A second isolation structure is over a second end of a first portion of the fin, the second end of the first portion of the fin having a depth different than the depth of the first end of the first portion of the fin.Type: ApplicationFiled: April 11, 2024Publication date: August 15, 2024Inventors: Tahir GHANI, Byron HO, Curtis W. WARD, Michael L. HATTENDORF, Christopher P. AUTH
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Patent number: 12057492Abstract: Embodiments of the disclosure are in the field of advanced integrated circuit structure fabrication and, in particular, 10 nanometer node and smaller integrated circuit structure fabrication and the resulting structures. In an example, a method includes forming a plurality of fins and forming a plurality of gate structures over the plurality of fins. A dielectric material structure is formed between adjacent ones of the plurality of gate structures. A portion of a first of the plurality of gate structures is removed to expose a first portion of each of the plurality of fins, and a portion of a second of the plurality of gate structures is removed to expose a second portion of each of the plurality of fins. The exposed first portion of each of the plurality of fins is removed, but the exposed second portion of each of the plurality of fins is not removed.Type: GrantFiled: September 12, 2023Date of Patent: August 6, 2024Assignee: Intel CorporationInventors: Tahir Ghani, Byron Ho, Michael L. Hattendorf, Christopher P. Auth