Patents by Inventor James J. Erickson

James J. Erickson 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: 7390383
    Abstract: Paddles and enclosures for processing microfeature workpieces are disclosed. A paddle device having multiple paddles is positioned in an enclosure to reciprocate back and forth along a generally linear path. The clearances between the paddles, the workpiece and the walls of the chamber are relatively small to increase the flow agitation at the surface of the workpiece and enhance the mass transfer process occurring there. The paddles are shaped to reduce or eliminate electrical shadowing effects created at the surface of the workpiece during electrochemical processing. Paddles on the same paddle device may have different shapes to reduce the likelihood for creating three-dimensional effects in the flow field proximate to the surface of the workpiece. The reciprocation stroke of the paddles may shift to further reduce shadowing.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: June 24, 2008
    Assignee: Semitool, Inc.
    Inventors: Paul R. McHugh, Gregory J. Wilson, Daniel J. Woodruff, Nolan Zimmerman, James J. Erickson
  • Patent number: 7390382
    Abstract: Reactors having multiple electrodes and/or enclosed reciprocating paddles are disclosed. The reactor can include multiple electrodes spaced apart from a process location to provide virtual electrodes proximate to the process location for transferring material to or from the workpiece. A magnet may be positioned proximate to the process plane to orient magnetically sensitive material deposited on the workpiece. The electrodes may be removable from the reactor without passing them through the magnet to reduce interference between the electrodes and the magnet. The workpiece may be carried by a rotatable workpiece support to orient the workpiece for processing. At least one of the electrodes can operate as a current thief to reduce terminal effects at the periphery of the workpiece.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: June 24, 2008
    Assignee: Semitool, Inc.
    Inventors: Paul R. McHugh, Gregory J. Wilson, Daniel J. Woodruff, Nolan Zimmerman, James J. Erickson
  • Publication number: 20080135434
    Abstract: A sharps container for safe storage of used pen needles comprises a housing within which is rotatably mounted a used pen needle receiving and ejecting means. Used pen needles are inserted into the receiving means. The receiving and ejecting means is rotated; during the rotation, cam follower means connected to the ejecting means engages cam means within the housing to cause the ejection of the used pen needle into the housing.
    Type: Application
    Filed: February 19, 2008
    Publication date: June 12, 2008
    Applicant: ULTIMED, INC.
    Inventors: Thomas E. Erickson, James J. Erickson, Timothy A. Bachman
  • Patent number: 7344027
    Abstract: A sharps container for safe storage of used pen needles comprises a housing within which is rotatably mounted a used pen needle receiving and ejecting means. Used pen needles are inserted into the receiving means. The receiving and ejecting means is rotated; during the rotation, cam follower means connected to the ejecting means engages cam means within the housing to cause the ejection of the used pen needle into the housing.
    Type: Grant
    Filed: June 7, 2004
    Date of Patent: March 18, 2008
    Assignee: Ultimed, Inc.
    Inventors: Thomas E. Erickson, James J. Erickson, Timothy A. Bachman
  • Patent number: 7334826
    Abstract: End-effectors may be used to grasp microelectronic workpieces for handling by automated transport devices. One such end-effector includes a plurality of abutments and a detector adapted to detect engagement of the edge of the workpiece by at least one of the abutments.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: February 26, 2008
    Assignee: Semitool, Inc.
    Inventors: Daniel J. Woodruff, Randy A. Harris, James J. Erickson, Douglas W. Carr
  • Patent number: 7313462
    Abstract: An integrated tool and automatic calibration systems that enable wet chemical processing chambers, lift-rotate units and other hardware to be quickly interchanged without having to recalibrate the transport system or other components to the replacement items. These tools are expected to reduce the down time associated with repairing or maintaining processing chambers and/or lift-rotate units so that the tools can maintain a high throughput. Several aspects of these tools are particularly useful for applications that have stringent performance requirements because components are more likely to require maintenance more frequently, and reducing the down time associated with maintaining such components will significantly enhance the integrated tool.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: December 25, 2007
    Assignee: Semitool, Inc.
    Inventors: Daniel J. Woodruff, David P. Mattson, James J. Erickson, Matthew C. Egloff
  • Patent number: 7288179
    Abstract: A method and apparatus for transmitting electrical signals and fluids to and/or from a microelectronic workpiece. An apparatus in accordance with one embodiment of the invention includes a shaft rotatable about a shaft axis and having a first end with a first electrical contact portion toward the first end, a second end opposite the first end, and an internal channel along the shaft axis between the first and second ends. The shaft can further have at least one first hole toward the first end with the first hole extending radially from the channel to an external surface of the shaft. The shaft can still further have at least one second hole toward the second end with the second hole extending from the channel to the external surface. A housing rotatably receives the shaft and has an aperture coupleable to a fluid source and/or fluid sink.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: October 30, 2007
    Assignee: Semitool, Inc.
    Inventors: John M. Pedersen, James J. Erickson
  • Patent number: 7288172
    Abstract: A method and apparatus for transmitting electrical signals and fluids to and/or from a microelectronic workpiece. An apparatus in accordance with one embodiment of the invention includes a shaft rotatable about a shaft axis and having a first end with a first electrical contact portion toward the first end, a second end opposite the first end, and an internal channel along the shaft axis between the first and second ends. The shaft can further have at least one first hole toward the first end with the first hole extending radially from the channel to an external surface of the shaft. The shaft can still further have at least one second hole toward the second end with the second hole extending from the channel to the external surface. A housing rotatably receives the shaft and has an aperture coupleable to a fluid source and/or fluid sink.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: October 30, 2007
    Assignee: Semitool, Inc.
    Inventors: John M. Pedersen, James J. Erickson
  • Patent number: 7281741
    Abstract: End-effectors may be used to grasp microelectronic workpieces for handling by automated transport devices. One such end-effector includes a plurality of end-effectors and a detector adapted to detect engagement of the edge of the workpiece by at least one of the abutments. An alternative end-effector includes at least three abutments, at least one of which is resiliently connected to an actuator for movement between a retracted position and a deployed position wherein it engages a workpiece.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: October 16, 2007
    Assignee: Semitool, Inc.
    Inventors: Daniel J. Woodruff, Thomas H. Oberlitner, Randy A. Harris, James J. Erickson, Douglas W. Carr
  • Patent number: 7198694
    Abstract: An integrated tool and automatic calibration systems that enable wet chemical processing chambers, lift-rotate units and other hardware to be quickly interchanged without having to recalibrate the transport system or other components to the replacement items. These tools are expected to reduce the down time associated with repairing or maintaining processing chambers and/or lift-rotate units so that the tools can maintain a high throughput. Several aspects of these tools are particularly useful for applications that have stringent performance requirements because components are more likely to require maintenance more frequently, and reducing the down time associated with maintaining such components will significantly enhance the integrated tool.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: April 3, 2007
    Assignee: Semitool, Inc.
    Inventors: Daniel J. Woodruff, Jeffry Alan Davis, Randy A. Harris, David P. Mattson, James J. Erickson, Matthew C. Egloff
  • Patent number: 6976822
    Abstract: Passive end-effectors for handling microelectronic workpieces having a perimeter edge circumscribing a first diameter. In one embodiment, a passive end-effector in accordance with the invention includes a body having a plurality of contact sites located along a circle corresponding to the first diameter of the workpiece. The body, for example, can be a paddle or a fork. The passive end-effector can also include a plurality of passive abutments that are carried by the body. The abutments are located along the circle, and the abutments are configured to support the workpiece in a plane spaced apart from the body. The abutments, for example, can each include an inclined surface that slopes downwardly toward a central region of the circle to support only the edge of the workpiece in a manner that suspends or otherwise spaces the workpiece in a plane that is spaced apart from the body. The passive end-effector can further include a sensor assembly that is carried by the body.
    Type: Grant
    Filed: July 14, 2003
    Date of Patent: December 20, 2005
    Assignee: Semitool, Inc.
    Inventors: Daniel J. Woodruff, James J. Erickson
  • Patent number: 6923319
    Abstract: A sharps container for (i) the safe storage and dispensing of unused pen needle assemblies and (ii) a safe means for receiving used pen needles and ejecting same into the container. The container comprises a housing within which is rotatably mounted a used pen needle receiving and ejecting means. Used pen needles are inserted into the receiving means. The receiving and ejecting means is rotated and, during the rotation, cam follower means connected to the ejecting means engages cam means within the housing to cause the ejection of the used pen needle into the housing. The housing also has a separate storage space for unused pen needle assemblies. Alternate structures provide for withdrawal of unused pen needle assemblies for dispensing. The dispensing can be done on a serial basis where the pen needle assemblies which are attached to a flexible tape for serial withdrawal from the housing through an exit opening.
    Type: Grant
    Filed: June 7, 2004
    Date of Patent: August 2, 2005
    Assignee: ULTI Med Inc.
    Inventors: Thomas E. Erickson, James J. Erickson, Timothy A. Bachman
  • Patent number: 6923318
    Abstract: A sharps container for safe reception and storage of used pen needles and used medical syringes comprises a housing which supports a manually rotatable member. A used pen needle receiving and ejecting apparatus is connected to the rotatable member. Used pen needles are inserted into the receiving apparatus. As the receiving and ejecting apparatus is rotated, a cam follower connected to the ejecting apparatus engages a cam within the housing to cause the ejection of the used pen needle from the receiving apparatus into the housing. The rotatable member also has an elongated recess sized to receive a medical syringe. Manual rotation of the rotatable member rotates the elongated recess to drop the medical syringe into the housing.
    Type: Grant
    Filed: June 7, 2004
    Date of Patent: August 2, 2005
    Assignee: Ulti Med, Inc
    Inventors: Thomas E. Erickson, James J. Erickson, Timothy A. Bachman
  • Publication number: 20040245094
    Abstract: Tools having mounting modules with registration systems are disclosed. The mounting module includes positioning elements for precisely locating a processing chamber and a transport system that moves workpieces to and from the processing chamber. The relative positions between positioning elements of the module are fixed so that the transport system does not need to be recalibrated when the processing chamber is removed and replaced with another processing chamber. The processing chamber includes a paddle device for agitating processing liquid at a process surface of the workpiece. The paddle device, the processing chamber, and electrodes within the processing chamber are configured to reduce the likelihood for electrical shadowing created by the paddles at the surface of the workpiece, and to account for three-dimensional effects on the electrical field as the paddles reciprocate relative to the workpiece.
    Type: Application
    Filed: December 11, 2003
    Publication date: December 9, 2004
    Inventors: Paul R. McHugh, Gregory J. Wilson, Daniel J. Woodruff, Nolan Zimmerman, James J. Erickson
  • Publication number: 20040134773
    Abstract: A method and apparatus for transmitting electrical signals and fluids to and/or from a microelectronic workpiece. An apparatus in accordance with one embodiment of the invention includes a shaft rotatable about a shaft axis and having a first end with a first electrical contact portion toward the first end, a second end opposite the first end, and an internal channel along the shaft axis between the first and second ends. The shaft can further have at least one first hole toward the first end with the first hole extending radially from the channel to an external surface of the shaft. The shaft can still further have at least one second hole toward the second end with the second hole extending from the channel to the external surface. A housing rotatably receives the shaft and has an aperture coupleable to a fluid source and/or fluid sink.
    Type: Application
    Filed: December 23, 2003
    Publication date: July 15, 2004
    Inventors: John M. Pedersen, James J. Erickson
  • Publication number: 20040134787
    Abstract: A method and apparatus for transmitting electrical signals and fluids to and/or from a microelectronic workpiece. An apparatus in accordance with one embodiment of the invention includes a shaft rotatable about a shaft axis and having a first end with a first electrical contact portion toward the first end, a second end opposite the first end, and an internal channel along the shaft axis between the first and second ends. The shaft can further have at least one first hole toward the first end with the first hole extending radially from the channel to an external surface of the shaft. The shaft can still further have at least one second hole toward the second end with the second hole extending from the channel to the external surface. A housing rotatably receives the shaft and has an aperture coupleable to a fluid source and/or fluid sink.
    Type: Application
    Filed: December 23, 2003
    Publication date: July 15, 2004
    Inventors: John M. Pedersen, James J. Erickson
  • Publication number: 20040037691
    Abstract: Passive end-effectors for handling microelectronic workpieces having a perimeter edge circumscribing a first diameter. In one embodiment, a passive end-effector in accordance with the invention includes a body having a plurality of contact sites located along a circle corresponding to the first diameter of the workpiece. The body, for example, can be a paddle or a fork. The passive end-effector can also include a plurality of passive abutments that are carried by the body. The abutments are located along the circle, and the abutments are configured to support the workpiece in a plane spaced apart from the body. The abutments, for example, can each include an inclined surface that slopes downwardly toward a central region of the circle to support only the edge of the workpiece in a manner that suspends or otherwise spaces the workpiece in a plane that is spaced apart from the body. The passive end-effector can further include a sensor assembly that is carried by the body.
    Type: Application
    Filed: July 14, 2003
    Publication date: February 26, 2004
    Inventors: Daniel J. Woodruff, James J. Erickson
  • Patent number: 6673216
    Abstract: A method and apparatus for transmitting electrical signals and fluids to and/or from a microelectronic workpiece. An apparatus in accordance with one embodiment of the invention includes a shaft rotatable about a shaft axis and having a first end with a first electrical contact portion toward the first end, a second end opposite the first end, and an internal channel along the shaft axis between the first and second ends. The shaft can further have at least one first hole toward the first end with the first hole extending radially from the channel to an external surface of the shaft. The shaft can still further have at least one second hole toward the second end with the second hole extending from the channel to the external surface. A housing rotatably receives the shaft and has an aperture coupleable to a fluid source and/or fluid sink.
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: January 6, 2004
    Assignee: Semitool, Inc.
    Inventors: John M. Pedersen, James J. Erickson
  • Publication number: 20030085582
    Abstract: End-effectors may be used to grasp microelectronic workpieces for handling by automated transport devices. One such end-effector includes a plurality of abutments and a detector adapted to detect engagement of the edge of the workpiece by at least one of the abutments.
    Type: Application
    Filed: July 11, 2002
    Publication date: May 8, 2003
    Inventors: Daniel J. Woodruff, Randy A. Harris, James J. Erickson, Douglas W. Carr
  • Publication number: 20030082042
    Abstract: End-effectors may be used to grasp microelectronic workpieces for handling by automated transport devices. One such end-effector includes a plurality of end-effectors and a detector adapted to detect engagement of the edge of the workpiece by at least one of the abutments. An alternative end-effector includes at least three abutments, at least one of which is resiliently connected to an actuator for movement between a retracted position and a deployed position wherein it engages a workpiece.
    Type: Application
    Filed: July 11, 2002
    Publication date: May 1, 2003
    Inventors: Daniel J. Woodruff, Thomas H. Oberlitner, Randy A. Harris, James J. Erickson, Douglas W. Carr