Patents by Inventor Jane Ellyn Nealis

Jane Ellyn Nealis 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).

  • Bilayer liftoff process for high moment laminate
    Patent number: 6667850
    Abstract: The magnetic tape recording head of the present invention is formed with magnetic poles that are comprised of a laminated NiFeN/FeN structure. The method for fabricating the magnetic poles utilizes an additive photolithographic technique including a bilayer liftoff resist. In this fabrication method magnetic pole trenches are formed in the bilayer liftoff resist such that an undercut exists in the liftoff layer. Thereafter, the laminated NiFeN/FeN structure is sputter deposited into the trench, followed by the wet chemical removal of the bilayer resist.
    Type: Grant
    Filed: October 5, 2002
    Date of Patent: December 23, 2003
    Assignee: International Business Machines Corporation
    Inventors: Mahbub R. Khan, Jane Ellyn Nealis, Alfred Floyd Renaldo, John David Westwood
  • Bilayer liftoff process for high moment laminate
    Publication number: 20030036021
    Abstract: The magnetic tape recording head of the present invention is formed with magnetic poles that are comprised of a laminated NiFeN/FeN structure. The method for fabricating the magnetic poles utilizes an additive photolithographic technique including a bilayer liftoff resist. In this fabrication method magnetic pole trenches are formed in the bilayer liftoff resist such that an undercut exists in the liftoff layer. Thereafter, the laminated NiFeN/FeN structure is sputter deposited into the trench, followed by the wet chemical removal of the bilayer resist.
    Type: Application
    Filed: October 5, 2002
    Publication date: February 20, 2003
    Inventors: Mahbub R. Khan, Jane Ellyn Nealis, Alfred Floyd Renaldo, John David Westwood
  • Bilayer liftoff process for high moment laminate
    Patent number: 6495311
    Abstract: The magnetic tape recording head of the present invention is formed with magnetic poles that are comprised of a laminated NiFeN/FeN structure. The method for fabricating the magnetic poles utilizes an additive photolithographic technique including a bilayer liftoff resist. In this fabrication method magnetic pole trenches are formed in the bilayer liftoff resist such that an undercut exists in the liftoff layer. Thereafter, the laminated NiFeN/FeN structure is sputter deposited into the trench, followed by the wet chemical removal of the bilayer resist.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: December 17, 2002
    Assignee: International Business Machines Corporation
    Inventors: Mahbub R. Khan, Jane Ellyn Nealis, Alfred Floyd Renaldo, John David Westwood