Patents by Inventor L. Vincent Ruscello

L. Vincent Ruscello 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: 6215630
    Abstract: A magnetic structure is formed by depositing a layer of diamond-like carbon onto the exposed surface of an a first material and depositing a layer of second material onto the layer of diamond-like carbon. A photoresist is applied to the exposed surface of the second layer and is patterned in the form of the desire structure. The exposed portions of the second layer are removed with a wet etchant that does not attack the diamond-like carbon layer. Thereafter, any remaining photoresist is removed.
    Type: Grant
    Filed: October 30, 1996
    Date of Patent: April 10, 2001
    Assignee: Seagate Technology LLC
    Inventors: Allan E. Schultz, L. Vincent Ruscello, William H. Nunne
  • Patent number: 5718949
    Abstract: A thin film magnetic transducer supported on a substrate includes a coil that terminates at pads supported on the substrate. A layer of diamond-like carbon material encapsulates the head, substrate and coil, but not the pads. A thin layer of diamond-like carbon is deposited over the exposed portions of the transducer, coil and substrate. Three techniques are described for exposing the pads including employing a photoresist mask, depositing an adhesive layer of silicon over the conductive paths but not the pads, and using a photoresist mask to etch the diamond-like carbon layer over the pads and breaking down the silicon adhesive layer with a design voltage.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: February 17, 1998
    Assignee: Seagate Technology, Inc.
    Inventors: Allan E. Schultz, L. Vincent Ruscello, William H. Nunne
  • Patent number: 5681426
    Abstract: A magnetic structure is formed by depositing a layer of diamond-like carbon onto the exposed surface of an a first material and depositing a layer of second material onto the layer of diamond-like carbon. A photoresist is applied to the exposed surface of the second layer and is patterned in the form of the desire structure. The exposed portions of the second layer are removed with a wet etchant that does not attack the diamond-like carbon layer. Thereafter, any remaining photoresist is removed.
    Type: Grant
    Filed: December 13, 1995
    Date of Patent: October 28, 1997
    Assignee: Seagate Technology, Inc.
    Inventors: Allan E. Schultz, L. Vincent Ruscello, William H. Nunne
  • Patent number: 5658470
    Abstract: A diamond-like carbon mask is formed on the surface of the magnetic material for ion-milling the magnetic material into a magnetic pole of a transducer. The mask is formed by depositing a layer of diamond-like carbon over the magnetic material. Successive layers of photoresist, SiO.sub.2 and photoresist are applied over the magnetic material. The second layer of photoresist is patterned in the shape of the pole being formed. The exposed insulating layer is etched with an etchant that does not attack the diamond-like carbon, the exposed portions of the photoresist are exposed and removed, and the exposed portion of the diamond-like carbon is etched with an oxygen etchant. The remaining photoresist is washed away to remove the remaining insulating material. In one form of the invention, a layer of SiO.sub.2 may additionally be formed over the diamond-like carbon to protect the diamond-like carbon from being affected by any undercut of the photoresist by the oxygen etchant. The SiO.sub.
    Type: Grant
    Filed: December 13, 1995
    Date of Patent: August 19, 1997
    Assignee: Seagate Technology, Inc.
    Inventors: Allan E. Schultz, L. Vincent Ruscello, William H. Nunne
  • Patent number: 5640292
    Abstract: A thin film magnetic transducer supported on a substrate includes a coil that terminates at pads supported on the substrate. A layer of diamond-like carbon material encapsulates the head, substrate and coil, but not the pads. A thin layer of diamond-like carbon is deposited over the exposed portions of the transducer, coil and substrate. Three techniques are described for exposing the pads including employing a photoresist mask, depositing an adhesive layer of silicon over the conductive paths but not the pads, and using a photoresist mask to etch the diamond-like carbon layer over the pads and breaking down the silicon adhesive layer with a design voltage.
    Type: Grant
    Filed: January 17, 1996
    Date of Patent: June 17, 1997
    Assignee: Seagate Technology, Inc.
    Inventors: Allan E. Schultz, L. Vincent Ruscello, William H. Nunne