Patents by Inventor Michael Stolfi

Michael Stolfi 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).

  • Publication number: 20250385101
    Abstract: Embodiments described herein relate to a method that includes forming a patterning stack over a substrate, wherein the patterning stack includes an underlayer over the substrate that includes an extreme ultraviolet (EUV) sensitive material with —OH terminated chains, and a resist layer over the underlayer. The method further includes exposing regions of the patterning stack with EUV electromagnetic radiation, and increasing a temperature of the patterning stack, wherein OH and/or H2O is released from exposed regions of the underlayer and diffuses into the resist layer. The method may also include developing the resist layer.
    Type: Application
    Filed: May 21, 2025
    Publication date: December 18, 2025
    Inventors: NANCY FUNG, CHI-I LANG, MICHAEL STOLFI, HIDEYUKI KANZAWA, LEQUN LIU
  • Patent number: 12363948
    Abstract: Horizontal gate-all-around devices and methods of manufacturing same are described. The hGAA devices comprise an oxide layer and a semiconductor material layer between source regions and drain regions of the device. The method includes growing a conformal epitaxial layer on a nanosheet channel layer, followed by radical plasma oxidation (RPO) to oxidize the conformal epitaxial layer. An alternative method includes growing a conformal epitaxial layer on a nanosheet channel layer, followed by a surface treatment, and then radical plasma oxidation (RPO) to oxidize the conformal epitaxial layer.
    Type: Grant
    Filed: October 11, 2021
    Date of Patent: July 15, 2025
    Assignee: Applied Materials, Inc.
    Inventors: Myungsun Kim, Andy Lo, Eric Davey, Michael Stolfi, Benjamin Colombeau
  • Publication number: 20250203942
    Abstract: Horizontal gate-all-around devices and methods of manufacturing same are described. The hGAA devices comprise an oxide layer and a semiconductor material layer between source regions and drain regions of the device. The method includes growing a conformal epitaxial layer on a nanosheet channel layer, followed by radical plasma oxidation (RPO) to oxidize the conformal epitaxial layer. An alternative method includes growing a conformal epitaxial layer on a nanosheet channel layer, followed by a surface treatment, and then radical plasma oxidation (RPO) to oxidize the conformal epitaxial layer.
    Type: Application
    Filed: February 26, 2025
    Publication date: June 19, 2025
    Applicant: Applied Materials, Inc.
    Inventors: Myungsun Kim, Andy Lo, Eric Davey, Michael Stolfi, Benjamin Colombeau
  • Patent number: 12334337
    Abstract: Provided are methods of depositing a film in high aspect ratio (AR) structures with small dimensions. The method provides flowable deposition for seamless gap-fill, film densification by low temperature inductively coupled plasma (ICP) treatment (<600° C.), optional film curing, and etch back to form a low-k dielectric film having a dielectric constant, k-value less than 3.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: June 17, 2025
    Assignee: Applied Materials, Inc.
    Inventors: Myungsun Kim, Jingmei Liang, Martin J. Seamons, Michael Stolfi, Benjamin Colombeau
  • Patent number: 12243941
    Abstract: Horizontal gate-all-around devices and methods of manufacturing the same are described. The hGAA devices comprise an oxidize layer on a semiconductor material between source regions and drain regions of the device. The method includes radical plasma oxidation (RPO) of semiconductor material layers between source regions and drain regions of an electronic device.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: March 4, 2025
    Assignee: Applied Materials, Inc.
    Inventors: Myungsun Kim, Michael Stolfi, Benjamin Colombeau, Andy Lo
  • Patent number: 12062708
    Abstract: Horizontal gate-all-around devices and methods of manufacturing same are described. The hGAA devices comprise a trimmed semiconductor material between source regions and drain regions of the device. The method includes selectively isotropically etching semiconductor material layers between source regions and drain regions of an electronic device.
    Type: Grant
    Filed: October 18, 2022
    Date of Patent: August 13, 2024
    Assignee: Applied Materials, Inc.
    Inventors: Michael Stolfi, Myungsun Kim, Benjamin Colombeau, Sanjay Natarajan
  • Publication number: 20230039074
    Abstract: Horizontal gate-all-around devices and methods of manufacturing same are described. The hGAA devices comprise a trimmed semiconductor material between source regions and drain regions of the device. The method includes selectively isotropically etching semiconductor material layers between source regions and drain regions of an electronic device.
    Type: Application
    Filed: October 18, 2022
    Publication date: February 9, 2023
    Applicant: Applied Materials, Inc.
    Inventors: Michael Stolfi, Myungsun Kim, Benjamin Colombeau, Sanjay Natarajan
  • Patent number: 11508828
    Abstract: Horizontal gate-all-around devices and methods of manufacturing same are described. The hGAA devices comprise a trimmed semiconductor material between source regions and drain regions of the device. The method includes selectively isotropically etching semiconductor material layers between source regions and drain regions of an electronic device.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: November 22, 2022
    Assignee: Applied Materials, Inc.
    Inventors: Michael Stolfi, Myungsun Kim, Benjamin Colombeau, Sanjay Natarajan
  • Publication number: 20220123123
    Abstract: Horizontal gate-all-around devices and methods of manufacturing same are described. The hGAA devices comprise an oxide layer and a semiconductor material layer between source regions and drain regions of the device. The method includes growing a conformal epitaxial layer on a nanosheet channel layer, followed by radical plasma oxidation (RPO) to oxidize the conformal epitaxial layer. An alternative method includes growing a conformal epitaxial layer on a nanosheet channel layer, followed by a surface treatment, and then radical plasma oxidation (RPO) to oxidize the conformal epitaxial layer.
    Type: Application
    Filed: October 11, 2021
    Publication date: April 21, 2022
    Applicant: Applied Materials, Inc.
    Inventors: Myungsun Kim, Andy Lo, Eric Davey, Michael Stolfi, Benjamin Colombeau
  • Publication number: 20220037147
    Abstract: Provided are methods of depositing a film in high aspect ratio (AR) structures with small dimensions. The method provides flowable deposition for seamless gap-fill, film densification by low temperature inductively coupled plasma (ICP) treatment (<600° C.), optional film curing, and etch back to form a low-k dielectric film having a dielectric constant, k-value less than 3.
    Type: Application
    Filed: July 28, 2021
    Publication date: February 3, 2022
    Applicant: Applied Materials, Inc.
    Inventors: Myungsun Kim, Jingmei Liang, Martin J. Seamons, Michael Stolfi, Benjamin Colombeau
  • Publication number: 20220037529
    Abstract: Horizontal gate-all-around devices and methods of manufacturing the same are described. The hGAA devices comprise an oxidize layer on a semiconductor material between source regions and drain regions of the device. The method includes radical plasma oxidation (RPO) of semiconductor material layers between source regions and drain regions of an electronic device.
    Type: Application
    Filed: July 28, 2021
    Publication date: February 3, 2022
    Applicant: Applied Materials, Inc.
    Inventors: Myungsun Kim, Michael Stolfi, Benjamin Colombeau, Andy Lo
  • Publication number: 20220005937
    Abstract: Horizontal gate-all-around devices and methods of manufacturing same are described. The hGAA devices comprise a trimmed semiconductor material between source regions and drain regions of the device. The method includes selectively isotropically etching semiconductor material layers between source regions and drain regions of an electronic device.
    Type: Application
    Filed: June 22, 2021
    Publication date: January 6, 2022
    Applicant: Applied Materials, Inc.
    Inventors: Michael Stolfi, Myungsun Kim, Benjamin Colombeau, Sanjay Natarajan
  • Publication number: 20190212656
    Abstract: Methods for depositing an EUV hardmask film on a substrate by physical vapor deposition which allow for reduced EUV dose. Certain embodiments relate to metal oxide hardmasks which require smaller amounts of EUV energy for processing and allow for higher throughput. A silicon or metal target can be sputtered onto a substrate in the presence of an oxygen and or doping gas containing plasma.
    Type: Application
    Filed: January 10, 2019
    Publication date: July 11, 2019
    Inventors: Huixiong Dai, Weimin Zeng, Daniel Lee Diehl, Yong Cao, Hsiang Ning Wu, Khoi Phan, Christopher S. Ngai, Mingwei Zhu, Michael Stolfi, Nelson M. Felix, Ekmini Anuja DeSilva, Xianmin Tang