Patents Assigned to STEAG Hamatech
  • Patent number: 6352612
    Abstract: A system and method cure a resin disposed between a combination of a top substrate and a bottom substrate with low power. One of the top and bottom substrates includes metallized data pits. Resin-curing light is directed at sides of the data pits.
    Type: Grant
    Filed: May 19, 1998
    Date of Patent: March 5, 2002
    Assignee: STEAG HamaTech, Inc.
    Inventors: Joseph W. Paulus, Kendrick H. Light, Scott R. Parent, Donald G. Parent, Arthur R. LeBlanc, III, Elango Ramanathan, Aziz Calcuttawala, Richard W. Stowe
  • Patent number: 6332944
    Abstract: An improved substrate and stamper holder and method of forming substrates are disclosed. According to a preferred embodiment of the invention, a substrate for a DVD has a moat with a capillary barrier shape. Under one embodiment, the moat has a region with an abrupt outer diameter transition. One embodiment has the outer diameter transition at approximately at a right angle relative to a registering surface of the substrate. Another embodiment of the invention provides a wider moats. The improvements reduce the likelihood of resin wicking past the moats.
    Type: Grant
    Filed: January 31, 2000
    Date of Patent: December 25, 2001
    Assignee: STEAG HamaTech, Inc.
    Inventors: Joseph W. Paulus, Arthur R. LeBlanc, III
  • Patent number: 6254809
    Abstract: A system and method cure a combination of a top and a bottom substrate with a resin disposed in-between. A cure platform includes a chuck on which the combination rests. A cure device cures the resin. An actuation assembly separates the chuck from the platform to thermally isolate the chuck during a curing operation performed by the cure device. A post cooling assembly may be provided to cool the chuck and the combination after a curing operation is performed by the cure device.
    Type: Grant
    Filed: May 19, 1998
    Date of Patent: July 3, 2001
    Assignee: Steag Hamatech, Inc.
    Inventors: Scott R. Parent, Thomas M. Thibault, Donald G. Parent
  • Patent number: 6241079
    Abstract: A device for conveying substrates through a substrate treatment device has a base transport belt defining a transport plane and two lateral transport belts positioned at a first spacing above the base transport belt. The two lateral transport belts are laterally spaced at a second spacing to one another. Each one of the two lateral transport belts defines a lateral transport plane. Each one of the lateral transport planes is positioned at a slant to the transport plane of the base transport belt. The two lateral transport belts and the base transport belt have cutouts for receiving vertically poisoned substrates. At least one of the first spacing and the second spacing is changeable. Also, the slant angle between at least one of the lateral transport planes to the transport plane of the base transport belt is changeable.
    Type: Grant
    Filed: October 16, 1999
    Date of Patent: June 5, 2001
    Assignee: STEAG HamaTech AG
    Inventors: Klaus Weber, Bernd Mahner
  • Patent number: 6203849
    Abstract: In a method for coating of disc-shaped data storage media with a coating medium at least one coating nozzle is moved quickly by a first movement into the vicinity of a coating medium application location at the inner area of a storage medium and subsequently the at least one application nozzle is moved slowly by a second movement to the location of application. The coating medium is applied at the location of application and is distributed by a centrifugal force resulting from rotation of the storage medium. The device for coating disc-shaped data storage media with a coating medium has a rotatable support for the storage medium and at least one coating nozzle comprising a drive unit for moving the at least one coating nozzle across the storage medium to a location of application of the coating medium. The drive unit is a hydraulic arrangement with a first hydraulic cylinder for a first, fast movement and a second hydraulic cylinder for a second, slow movement of the at least one coating nozzle.
    Type: Grant
    Filed: November 13, 1998
    Date of Patent: March 20, 2001
    Assignee: Steag Hamatech GmbH Machines
    Inventors: Klaus Weber, Martin Kallis
  • Patent number: 6170169
    Abstract: A device for drying substrate disks by irradiation with ultraviolet light, wherein during the irradiation process a glass plate is resting on the substrate disk, has a lower part on which the substrate disk rests during drying and a liftable and lowerable upper part for lowering a glass plate onto the substrate disk resting on the lower part. The upper part has a glass plate holding device that is lowered below the substrate disk upon lowering of the upper part for placement of the glass plate onto the substrate disk.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: January 9, 2001
    Assignee: STEAG HamaTech AG
    Inventors: Klaus Weber, Ulrich Speer
  • Patent number: 6074482
    Abstract: A device for coating disc-shaped information storage media with a coating medium has a drying station having an UV lamp for drying the applied coating medium. The UV lamp is arc-shaped and has a radius that is greater than a radius of the disc-shaped information storage media.
    Type: Grant
    Filed: June 8, 1998
    Date of Patent: June 13, 2000
    Assignee: Steag Hamatech AG
    Inventors: Klaus Weber, Jurgen Kallis