Patents by Inventor Chimaobi W. Mbanaso

Chimaobi W. Mbanaso 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).

  • Patent number: 11355376
    Abstract: Disclosed herein are systems and methods for treating the surface of a microelectronic substrate, and in particular, relate to an apparatus and method for scanning the microelectronic substrate through a cryogenic fluid mixture used to treat an exposed surface of the microelectronic substrate. The fluid mixture may be expanded through a nozzle to form an aerosol spray or gas cluster jet (GCJ) spray and may impinge the microelectronic substrate and remove particles from the microelectronic substrate's surface. In one embodiment, a two-stage gas nozzle may be used to expand a fluid mixture with a liquid phase concentration of greater than 10% by weight.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: June 7, 2022
    Assignee: TEL MANUFACTURING AND ENGINEERING OF AMERICA, INC.
    Inventors: Jeffery W. Butterbaugh, Chimaobi W. Mbanaso, David Scott Becker
  • Patent number: 11020774
    Abstract: This invention relates to systems and methods that produce a treatment beam with a controllable beam size. This is accomplished by providing an auxiliary chamber in open fluid communication with the main process chamber. A nozzle is mounted in a recessed manner in the auxiliary chamber. The nozzle dispenses a treatment spray into the auxiliary chamber. The auxiliary chamber shapes and dispenses the treatment material as a treatment beam into the process chamber. In illustrative embodiments, control of process chamber pressure adjusts the beam size of a treatment beam used to treat the surface of one or more microelectronic substrates.
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: June 1, 2021
    Assignee: TEL MANUFACTURING AND ENGINEERING OF AMERICA, INC.
    Inventor: Chimaobi W. Mbanaso
  • Patent number: 10991610
    Abstract: Disclosed herein are systems and methods for treating the surface of a microelectronic substrate, using a cryogenic fluid mixture used to treat an exposed surface of the microelectronic substrate. The fluid mixture may be expanded through a nozzle to form an aerosol spray or gas cluster jet (GCJ) spray may impinge the microelectronic substrate and remove particles from the microelectronic substrate's surface. The system may include a two-stage gas nozzle that expands the high pressure incoming gas within two inline expansion chambers. However, in other embodiments, the system may include a single stage nozzle design with one expansion component.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: April 27, 2021
    Assignee: TEL MANUFACTURING AND ENGINEERING OF AMERICA, INC.
    Inventors: Jeffery W. Butterbaugh, Chimaobi W. Mbanaso
  • Publication number: 20210050233
    Abstract: Disclosed herein are systems and methods for treating the surface of a microelectronic substrate, and in particular, relate to an apparatus and method for scanning the microelectronic substrate through a cryogenic fluid mixture used to treat an exposed surface of the microelectronic substrate. The fluid mixture may be expanded through a nozzle to form an aerosol spray or gas cluster jet (GCJ) spray may impinge the microelectronic substrate and remove particles from the microelectronic substrate's surface. In one embodiment, the fluid mixture may be maintained to prevent liquid formation within the fluid mixture prior to passing the fluid mixture through the nozzle. The fluid mixture may include nitrogen, argon, helium, neon, xenon, krypton, carbon dioxide, or any combination thereof.
    Type: Application
    Filed: August 13, 2020
    Publication date: February 18, 2021
    Inventors: Chimaobi W. Mbanaso, Jeffery W. Butterbaugh, David Scott Becker
  • Patent number: 10748789
    Abstract: Disclosed herein are systems and methods for treating the surface of a microelectronic substrate, and in particular, relate to an apparatus and method for scanning the microelectronic substrate through a cryogenic fluid mixture used to treat an exposed surface of the microelectronic substrate. The fluid mixture may be expanded through a nozzle to form an aerosol spray or gas cluster jet (GCJ) spray may impinge the microelectronic substrate and remove particles from the microelectronic substrate's surface. In one embodiment, the fluid mixture may be maintained to prevent liquid formation within the fluid mixture prior to passing the fluid mixture through the nozzle. The fluid mixture may include nitrogen, argon, helium, neon, xenon, krypton, carbon dioxide, or any combination thereof.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: August 18, 2020
    Assignee: TEL FSI, INC.
    Inventors: Chimaobi W. Mbanaso, Jeffery W. Butterbaugh, David Scott Becker
  • Patent number: 10748788
    Abstract: A system and method for treating a substrate is described. In particular, the system and method for treating a substrate include techniques for removing particles from the surface of a microelectronic substrate. The system includes: a vacuum process chamber; a substrate stage for supporting a microelectronic substrate within the vacuum process chamber; a cryogenic fluid supply system that can provide a fluid or fluid mixture through one or more nozzles arranged within the vacuum process chamber to inject a fluid spray into the process chamber in a direction towards an upper surface of the microelectronic substrate; and a process monitoring system coupled to the vacuum process chamber, and arranged to collect fluid spray data corresponding to at least one measured attribute of the injected fluid spray downstream of an exit of the one or more nozzles.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: August 18, 2020
    Assignee: TEL FSI, INC.
    Inventors: Brent D. Schwab, Chimaobi W. Mbanaso, Gregory P. Thomes, Kevin Rolf, Jeffrey M. Lauerhaas
  • Publication number: 20190255580
    Abstract: This invention relates to systems and methods that produce a treatment beam with a controllable beam size. This is accomplished by providing an auxiliary chamber in open fluid communication with the main process chamber. A nozzle is mounted in a recessed manner in the auxiliary chamber. The nozzle dispenses a treatment spray into the auxiliary chamber. The auxiliary chamber shapes and dispenses the treatment material as a treatment beam into the process chamber. In illustrative embodiments, control of process chamber pressure adjusts the beam size of a treatment beam used to treat the surface of one or more microelectronic substrates.
    Type: Application
    Filed: February 18, 2019
    Publication date: August 22, 2019
    Inventor: Chimaobi W. Mbanaso
  • Publication number: 20180269080
    Abstract: A system and method for treating a substrate is described. In particular, the system and method for treating a substrate include techniques for removing particles from the surface of a microelectronic substrate. The system includes: a vacuum process chamber; a substrate stage for supporting a microelectronic substrate within the vacuum process chamber; a cryogenic fluid supply system that can provide a fluid or fluid mixture through one or more nozzles arranged within the vacuum process chamber to inject a fluid spray into the process chamber in a direction towards an upper surface of the microelectronic substrate; and a process monitoring system coupled to the vacuum process chamber, and arranged to collect fluid spray data corresponding to at least one measured attribute of the injected fluid spray downstream of an exit of the one or more nozzles.
    Type: Application
    Filed: March 15, 2018
    Publication date: September 20, 2018
    Inventors: Brent D. Schwab, Chimaobi W. Mbanaso, Gregory P. Thomes, Kevin Rolf, Jeffrey M. Lauerhaas
  • Patent number: 10062596
    Abstract: Disclosed herein are systems and methods for treating the surface of a microelectronic substrate, and in particular, relate to an apparatus and method for scanning the microelectronic substrate through a cryogenic fluid mixture used to treat an exposed surface of the microelectronic substrate. The fluid mixture may be expanded through a nozzle to form an aerosol spray or gas cluster jet (GCJ) spray may impinge the microelectronic substrate and remove particles from the microelectronic substrate's surface. In one embodiment, the fluid mixture may be maintained to prevent liquid formation within the fluid mixture prior to passing the fluid mixture through the nozzle. The fluid mixture may include nitrogen, argon, helium, neon, xenon, krypton, carbon dioxide, or any combination thereof.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: August 28, 2018
    Assignee: TEL FSI, INC.
    Inventors: Jeffery W. Butterbaugh, Chimaobi W. Mbanaso, David Scott Becker
  • Patent number: 10020217
    Abstract: Disclosed herein are systems and methods for treating the surface of a microelectronic substrate, using a cryogenic fluid mixture used to treat an exposed surface of the microelectronic substrate. The fluid mixture may be expanded through a nozzle to form an aerosol spray or gas cluster jet (GCJ) spray may impinge the microelectronic substrate and remove particles from the microelectronic substrate's surface. The fluid mixture may include nitrogen, argon, helium, neon, xenon, krypton, carbon dioxide, or any combination thereof. The incoming fluid mixture may be maintained pressure greater than atmospheric pressure and at a temperature greater than the condensation temperature of the fluid mixture. The fluid mixture may be expanded into the treatment chamber to form an aerosol or gas cluster spray. In this embodiment, the nozzle may be positioned within 50 mm of the microelectronic substrate during the treatment, more preferably within 10 mm of the microelectronic substrate.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: July 10, 2018
    Assignee: TEL FSI, INC.
    Inventors: Jeffery W. Butterbaugh, Chimaobi W. Mbanaso, David Scott Becker
  • Patent number: 10014191
    Abstract: Disclosed herein are systems and methods for treating the surface of a microelectronic substrate, and in particular, relate to an apparatus and method for scanning the microelectronic substrate through a cryogenic fluid mixture used to treat an exposed surface of the microelectronic substrate. The fluid mixture may be expanded through a nozzle to form an aerosol spray or gas cluster jet (GCJ) spray may impinge the microelectronic substrate and remove particles from the microelectronic substrate's surface. In one embodiment, the fluid mixture may be maintained to prevent liquid formation within the fluid mixture prior to passing the fluid mixture through the nozzle. The fluid mixture may include nitrogen, argon, helium, neon, xenon, krypton, carbon dioxide, or any combination thereof.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: July 3, 2018
    Assignee: TEL FSI, INC.
    Inventors: Chimaobi W. Mbanaso, Jeffery W. Butterbaugh, David Scott Becker
  • Publication number: 20160303617
    Abstract: Disclosed herein are systems and methods for treating the surface of a microelectronic substrate, and in particular, relate to an apparatus and method for scanning the microelectronic substrate through a cryogenic fluid mixture used to treat an exposed surface of the microelectronic substrate. The fluid mixture may be expanded through a nozzle to form an aerosol spray or gas cluster jet (GCJ) spray may impinge the microelectronic substrate and remove particles from the microelectronic substrate's surface. In one embodiment, the fluid mixture may be maintained to prevent liquid formation within the fluid mixture prior to passing the fluid mixture through the nozzle. The fluid mixture may include nitrogen, argon, helium, neon, xenon, krypton, carbon dioxide, or any combination thereof.
    Type: Application
    Filed: June 29, 2016
    Publication date: October 20, 2016
    Inventors: Chimaobi W. Mbanaso, Jeffery W. Butterbaugh, David Scott Becker
  • Publication number: 20160096207
    Abstract: Disclosed herein are systems and methods for treating the surface of a microelectronic substrate, using a cryogenic fluid mixture used to treat an exposed surface of the microelectronic substrate. The fluid mixture may be expanded through a nozzle to form an aerosol spray or gas cluster jet (GCJ) spray may impinge the microelectronic substrate and remove particles from the microelectronic substrate's surface. The system may include a two-stage gas nozzle that expands the high pressure incoming gas within two inline expansion chambers. However, in other embodiments, the system may include a single stage nozzle design with one expansion component.
    Type: Application
    Filed: October 6, 2015
    Publication date: April 7, 2016
    Inventors: Jeffery W. Butterbaugh, Chimaobi W. Mbanaso
  • Publication number: 20160096210
    Abstract: Disclosed herein are systems and methods for treating the surface of a microelectronic substrate, using a cryogenic fluid mixture used to treat an exposed surface of the microelectronic substrate. The fluid mixture may be expanded through a nozzle to form an aerosol spray or gas cluster jet (GCJ) spray may impinge the microelectronic substrate and remove particles from the microelectronic substrate's surface. The fluid mixture may include nitrogen, argon, helium, neon, xenon, krypton, carbon dioxide, or any combination thereof. The incoming fluid mixture may be maintained pressure greater than atmospheric pressure and at a temperature greater than the condensation temperature of the fluid mixture. The fluid mixture may be expanded into the treatment chamber to form an aerosol or gas cluster spray. In this embodiment, the nozzle may be positioned within 50 mm of the microelectronic substrate during the treatment, more preferably within 10 mm of the microelectronic substrate.
    Type: Application
    Filed: October 6, 2015
    Publication date: April 7, 2016
    Inventors: Jeffery W. Butterbaugh, Chimaobi W. Mbanaso, David Scott Becker
  • Publication number: 20160096209
    Abstract: Disclosed herein are systems and methods for treating the surface of a microelectronic substrate, and in particular, relate to an apparatus and method for scanning the microelectronic substrate through a cryogenic fluid mixture used to treat an exposed surface of the microelectronic substrate. The fluid mixture may be expanded through a nozzle to form an aerosol spray or gas cluster jet (GCJ) spray may impinge the microelectronic substrate and remove particles from the microelectronic substrate's surface. In one embodiment, the fluid mixture may be maintained to prevent liquid formation within the fluid mixture prior to passing the fluid mixture through the nozzle. The fluid mixture may include nitrogen, argon, helium, neon, xenon, krypton, carbon dioxide, or any combination thereof.
    Type: Application
    Filed: October 6, 2015
    Publication date: April 7, 2016
    Inventors: Jeffery W. Butterbaugh, Chimaobi W. Mbanaso, David Scott Becker
  • Publication number: 20160096206
    Abstract: Disclosed herein are systems and methods for treating the surface of a microelectronic substrate, and in particular, relate to an apparatus and method for scanning the microelectronic substrate through a cryogenic fluid mixture used to treat an exposed surface of the microelectronic substrate. The fluid mixture may be expanded through a nozzle to form an aerosol spray or gas cluster jet (GCJ) spray and may impinge the microelectronic substrate and remove particles from the microelectronic substrate's surface. In one embodiment, a two-stage gas nozzle may be used to expand a fluid mixture with a liquid phase concentration of greater than 10% by weight.
    Type: Application
    Filed: October 6, 2015
    Publication date: April 7, 2016
    Inventors: Jeffery W. Butterbaugh, Chimaobi W. Mbanaso, David Scott Becker