Patents by Inventor Bunsen B. Nie

Bunsen B. Nie 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: 20230395369
    Abstract: The disclosed technology generally relates to forming a titanium nitride layer, and more particularly to forming by atomic layer deposition a titanium nitride layer on a seed layer. In one aspect, a semiconductor structure comprises a semiconductor substrate comprising a non-metallic surface. The semiconductor structure additionally comprises a seed layer comprising silicon (Si) and nitrogen (N) conformally coating the non-metallic surface and a TiN layer conformally coating the seed layer. Aspects are also directed to methods of forming the semiconductor structures.
    Type: Application
    Filed: February 15, 2023
    Publication date: December 7, 2023
    Inventors: Sung-Hoon Jung, Niloy Mukherjee, Hee Seok Kim, Kyu Jin Choi, Moonsig Joo, Hae Young Kim, Yoshikazu Okuyama, Nariman Naghibolashrafi, Bunsen B. Nie, Somilkumar J. Rathi
  • Publication number: 20230215725
    Abstract: The disclosed technology generally relates to forming a thin film comprising titanium nitride (TiN), and more particularly to forming by a cyclical vapor deposition process the thin film comprising (TiN).
    Type: Application
    Filed: September 30, 2022
    Publication date: July 6, 2023
    Inventors: Sung-Hoon Jung, Niloy Mukherjee, Yoshikazu Okuyama, Nariman Naghibolashrafi, Bunsen B. Nie, Hae Young Kim, Somilkumar J. Rathi
  • Patent number: 11587784
    Abstract: The disclosed technology generally relates to forming a titanium nitride layer, and more particularly to forming by atomic layer deposition a titanium nitride layer on a seed layer. In one aspect, a semiconductor structure comprises a semiconductor substrate comprising a non-metallic surface. The semiconductor structure additionally comprises a seed layer comprising silicon (Si) and nitrogen (N) conformally coating the non-metallic surface and a TiN layer conformally coating the seed layer. Aspects are also directed to methods of forming the semiconductor structures.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: February 21, 2023
    Assignee: Eugenus, Inc.
    Inventors: Sung-Hoon Jung, Niloy Mukherjee, Hee Seok Kim, Kyu Jin Choi, Moonsig Joo, Hae Young Kim, Yoshikazu Okuyama, Nariman Naghibolashrafi, Bunsen B. Nie, Somilkumar J. Rathi
  • Publication number: 20220415709
    Abstract: The disclosed technology generally relates to forming a titanium nitride-based thin films, and more particularly to a conformal and smooth titanium nitride-based thin films and methods of forming the same. In one aspect, a method of forming a thin film comprising one or both of TiSiN or TiAlN comprises exposing a semiconductor substrate to one or more vapor deposition cycles at a pressure in a reaction chamber greater than 1 torr, wherein a plurality of the vapor deposition cycles comprises an exposure to a titanium (Ti) precursor, an exposure to a nitrogen (N) precursor and an exposure to one or both of a silicon (Si) precursor or an aluminum (Al) precursor.
    Type: Application
    Filed: June 10, 2022
    Publication date: December 29, 2022
    Inventors: Niloy Mukherjee, Hae Young Kim, Jerry Mack, Jae Seok Heo, Sung-Hoon Jung, Somilkumar J. Rathi, Srishti Chugh, Nariman Naghibolashrafi, Yoshikazu Okuyama, Bunsen B. Nie
  • Patent number: 11482413
    Abstract: The disclosed technology generally relates to forming a thin film comprising titanium nitride (TiN), and more particularly to forming by a cyclical vapor deposition process the thin film comprising (TiN).
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: October 25, 2022
    Assignee: Eugenus, Inc.
    Inventors: Sung-Hoon Jung, Niloy Mukherjee, Yoshikazu Okuyama, Nariman Naghibolashrafi, Bunsen B. Nie, Hae Young Kim, Somilkumar J. Rathi
  • Publication number: 20220301928
    Abstract: The disclosed technology generally relates to forming a titanium nitride-based thin films, and more particularly to a conformal and smooth titanium nitride-based thin films and methods of forming the same. In one aspect, a method of forming a diffusion barrier comprising TiSiN comprises exposing a semiconductor substrate to one or more first deposition phases alternating with one or more second deposition phases. Exposing the semiconductor substrate to the one or more first deposition phases comprises alternatingly exposing the semiconductor substrate to a titanium (Ti) precursor and a nitrogen (N) precursor. Exposing the semiconductor substrate to the one or more second deposition phases comprises sequentially exposing the semiconductor substrate to the Ti precursor and a silicon (Si) precursor without an intervening exposure to the N precursor therebetween, followed by exposing the semiconductor substrate to the N precursor.
    Type: Application
    Filed: April 6, 2022
    Publication date: September 22, 2022
    Inventors: Hae Young Kim, Hyunchol Cho, Ajit Dhamdhere, Bunsen B. Nie
  • Publication number: 20220301929
    Abstract: The disclosed technology generally relates to forming a titanium nitride-based thin films, and more particularly to a conformal and smooth titanium nitride-based thin films and methods of forming the same. In one aspect, a method comprises forming a diffusion barrier comprising TiSiN having a modulus exceeding 290 GPa and a Si content exceeding 2.7 atomic % by exposing a semiconductor substrate to one or more first deposition phases alternating with one or more second deposition phases. Exposing the semiconductor substrate to the one or more first deposition phases comprises alternatingly exposing the semiconductor substrate to a titanium (Ti) precursor and a nitrogen (N) precursor. Exposing the semiconductor substrate to the one or more second deposition phases comprises sequentially exposing the semiconductor substrate to the Ti precursor, followed by a silicon (Si) precursor, followed by the N precursor.
    Type: Application
    Filed: April 6, 2022
    Publication date: September 22, 2022
    Inventors: Ajit Dhamdhere, Hae Young Kim, Hyunchol Cho, Bunsen B. Nie
  • Publication number: 20220216060
    Abstract: The disclosed technology generally relates to forming a thin film comprising titanium nitride (TiN), and more particularly to forming by a cyclical vapor deposition process the thin film comprising (TiN). In one aspect, a method of forming a thin film comprising titanium nitride (TiN) by a cyclical vapor deposition process comprises forming on a semiconductor substrate a TiN thin film by exposing the semiconductor substrate to one or more cyclical vapor deposition cycles each comprising an exposure to a Ti precursor at a Ti precursor flow rate and an exposure to a NH3 precursor at a NH3 precursor flow rate, after forming the TiN film, subjecting the semiconductor substrate, without further deposition of the TiN thin film, to a post-deposition exposure of NH3 at a second NH3 flow rate.
    Type: Application
    Filed: March 21, 2022
    Publication date: July 7, 2022
    Inventors: Hyunchol Cho, Hae Young Kim, Bunsen B. Nie
  • Patent number: 11361992
    Abstract: The disclosed technology generally relates to forming a titanium nitride-based thin films, and more particularly to a conformal and smooth titanium nitride-based thin films and methods of forming the same. In one aspect, a method of forming a thin film comprising one or both of TiSiN or TiAlN comprises exposing a semiconductor substrate to one or more vapor deposition cycles at a pressure in a reaction chamber greater than 1 torr, wherein a plurality of the vapor deposition cycles comprises an exposure to a titanium (Ti) precursor, an exposure to a nitrogen (N) precursor and an exposure to one or both of a silicon (Si) precursor or an aluminum (Al) precursor.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: June 14, 2022
    Assignee: Eugenus, Inc.
    Inventors: Niloy Mukherjee, Hae Young Kim, Jerry Mack, Jae Seok Heo, Sung-Hoon Jung, Somilkumar J. Rathi, Srishti Chugh, Nariman Naghibolashrafi, Yoshikazu Okuyama, Bunsen B. Nie
  • Publication number: 20220172988
    Abstract: The disclosed technology generally relates to forming a thin film comprising titanium nitride (TiN), and more particularly to forming by a cyclical vapor deposition process the thin film comprising (TiN). In one aspect, a method a method of forming a thin film comprising titanium nitride (TiN) by a cyclical vapor deposition process comprises forming on a semiconductor substrate a TiN thin film by exposing the semiconductor substrate to one or more cyclical vapor deposition cycles each comprising an exposure to a Ti precursor at a Ti precursor flow rate and an exposure to a N precursor at a N precursor flow rate, wherein a ratio of the N precursor flow rate to the Ti precursor flow rate exceeds 3.
    Type: Application
    Filed: December 9, 2021
    Publication date: June 2, 2022
    Inventors: Hyunchol Cho, Hae Young Kim, Ajit Dhamdhere, Bunsen B. Nie, Sung-Hoon Jung
  • Publication number: 20210104396
    Abstract: The disclosed technology generally relates to forming a thin film comprising titanium nitride (TiN), and more particularly to forming by a cyclical vapor deposition process the thin film comprising (TiN).
    Type: Application
    Filed: October 8, 2019
    Publication date: April 8, 2021
    Inventors: Sung-Hoon Jung, Niloy Mukherjee, Yoshikazu Okuyama, Nariman Naghibolashrafi, Bunsen B. Nie, Hae Young Kim, Somilkumar J. Rathi
  • Publication number: 20210104397
    Abstract: The disclosed technology generally relates to forming a titanium nitride layer, and more particularly to forming by atomic layer deposition a titanium nitride layer on a seed layer. In one aspect, a semiconductor structure comprises a semiconductor substrate comprising a non-metallic surface. The semiconductor structure additionally comprises a seed layer comprising silicon (Si) and nitrogen (N) conformally coating the non-metallic surface and a TiN layer conformally coating the seed layer. Aspects are also directed to methods of forming the semiconductor structures.
    Type: Application
    Filed: October 8, 2019
    Publication date: April 8, 2021
    Inventors: Sung-Hoon Jung, Niloy Mukherjee, Hee Seok Kim, Kyu Jin Choi, Moonsig Joo, Hae Young Kim, Yoshikazu Okuyama, Nariman Naghibolashrafi, Bunsen B. Nie, Somilkumar J. Rathi
  • Publication number: 20210104433
    Abstract: The disclosed technology generally relates to forming a titanium nitride-based thin films, and more particularly to a conformal and smooth titanium nitride-based thin films and methods of forming the same. In one aspect, a method of forming a thin film comprising one or both of TiSiN or TiAlN comprises exposing a semiconductor substrate to one or more vapor deposition cycles at a pressure in a reaction chamber greater than 1 torr, wherein a plurality of the vapor deposition cycles comprises an exposure to a titanium (Ti) precursor, an exposure to a nitrogen (N) precursor and an exposure to one or both of a silicon (Si) precursor or an aluminum (Al) precursor.
    Type: Application
    Filed: October 8, 2019
    Publication date: April 8, 2021
    Inventors: Niloy Mukherjee, Hae Young Kim, Jerry Mack, Jae Seok Heo, Sung-Hoon Jung, Somilkumar J. Rathi, Srishti Chugh, Nariman Naghibolashrafi, Yoshikazu Okuyama, Bunsen B. Nie