Patents Assigned to TBW Industries, Inc.
  • Patent number: 8025555
    Abstract: A method and apparatus for conditioning polishing pads that utilizes an apertured conditioning disk for introducing operation-specific slurries, without the need for additional tooling, platens, and materials handling. The method and apparatus utilizes a vacuum capability to pull waste material out of the polishing pad and through the apertured conditioning disk to evacuate the apparatus through an outlet port. The apparatus also includes a force adjustment system for providing measurement and control of the force applied by the conditioning disk to the polishing pad.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: September 27, 2011
    Assignee: TBW Industries Inc.
    Inventor: Stephen J. Benner
  • Patent number: 7913705
    Abstract: The present invention is related to an improved cleaning cup arrangement for CMP systems that efficiently and effectively removes most, if not all, of any slurry material present on the abrasive conditioning disk and conditioner head as they are resting in the cup between conditioning cycles. The cleaning cup of the present invention includes an underside water knife for directing a high velocity stream of cleaning fluid against the rotating abrasive disk (or conditioning brush, which may be used instead of a disk) surface, and at least a pair of spray stems for directing columns of cleaning fluid with sufficient cleaning force against all exposed portions of the conditioner head.
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: March 29, 2011
    Assignee: TBW Industries, Inc.
    Inventor: Stephen J. Benner
  • Patent number: 7909910
    Abstract: A vacuum clean-out system including a separator chamber and associated collection chamber for removing liquid material and debris from a vacuum output and providing a vacuum return line free of contaminants. A vacuum exhaust line is coupled to a cyclonic separator chamber that induces a circular rotation within the incoming vacuum stream, causing the liquid and debris to impinge the chamber's surfaces and fall to the bottom thereof while the “clean” vacuum is drawn upwards into a return line. The collection chamber is maintained at the same negative pressure as the separator chamber so that the accumulating liquid and debris easily drains into the collection chamber. A sensor associated with the collection chamber may be used to determine when the collection chamber is full and needs to be discharged. At that point, the separator chamber is isolated from the collection chamber, the collection chamber is vented and the accumulated material is discharged and/or analyzed.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: March 22, 2011
    Assignee: TBW Industries Inc.
    Inventor: Stephen J. Benner
  • Patent number: 7901267
    Abstract: A method and apparatus for conditioning polishing pads that utilizes an apertured conditioning disk for introducing operation-specific slurries, without the need for additional tooling, platens, and materials handling. The method and apparatus utilizes a vacuum capability to pull waste material out of the polishing pad and through the apertured conditioning disk to evacuate the apparatus through an outlet port. The apparatus also includes a force adjustment system for providing measurement and control of the force applied by the conditioning disk to the polishing pad.
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: March 8, 2011
    Assignee: TBW Industries, Inc.
    Inventor: Stephen J. Benner
  • Patent number: 7575503
    Abstract: A method and apparatus for conditioning polishing pads that utilize an apertured conditioning disk for introducing operation-specific slurries, without the need for additional tooling, platens, and materials handling. The method and apparatus utilize a vacuum capability to pull waste material out of the conditioning pad and through the apertured conditioning disk to evacuate the apparatus through an outlet port, the apparatus may also include self-contained flushing means and a piezo-electric device for vibrating the pad conditioning apparatus.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: August 18, 2009
    Assignee: TBW Industries, Inc.
    Inventor: Stephen J. Benner
  • Patent number: 7544113
    Abstract: An apparatus for conditioning polishing pads that utilizes an apertured conditioning disk for introducing operation-specific slurries, without the need for additional tooling, platens, and materials handling. The apparatus utilizes a vacuum capability to pull waste material out of the polishing pad and through the apertured conditioning disk to evacuate the apparatus through an outlet port. The apparatus also includes a force adjustment system for providing measurement and control of the force applied by the conditioning disk to the polishing pad.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: June 9, 2009
    Assignee: TBW Industries, Inc.
    Inventor: Stephen J. Benner
  • Patent number: 7258600
    Abstract: A method and apparatus for conditioning polishing pads that utilize an apertured conditioning disk for introducing operation-specific slurries, without the need for additional tooling, platens, and materials handling. The method and apparatus utilize a vacuum capability to pull waste material out of the conditioning pad and through the apertured conditioning disk to evacuate the apparatus through an outlet port, the apparatus may also include self-contained flushing means and a piezo-electric device for vibrating the pad conditioning apparatus.
    Type: Grant
    Filed: April 7, 2004
    Date of Patent: August 21, 2007
    Assignee: TBW Industries, Inc.
    Inventor: Stephen J. Benner
  • Patent number: 7217172
    Abstract: A CMP conditioning apparatus enhanced end effector arm for improving the reliability of the apparatus and the quality of the conditioning and polishing operations includes a conditioner head with features that provide for simplified alignment/attachment of a conditioning disk to the arm, while also providing a “quick release” mechanism for maintenance operations. The enhanced arm also includes an improved actuator that provides for a static friction (“stiction”)-free movement of the arm and better control of the downforce applied by the conditioning disk to the polishing pad. A dual-drive pulley system is used within the enhanced end effector arm to minimize the tilting of the drive belts within the effector arm as the arm pivots to follow the contour of an “aging” polishing pad.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: May 15, 2007
    Assignee: TBW Industries Inc.
    Inventor: Stephen J. Benner
  • Patent number: 7166014
    Abstract: A system and method for providing process control in a CMP system utilizes a vacuum-assisted arrangement for conditioning a wafer polishing pad so that the effluent (i.e., wafer debris, polishing slurry, chemical or other by-products) from the conditioning process is diverted from the waste stream and instead introduced into an analysis module for further processing. The analysis module functions to determine at least one parameter within the effluent and generate a process control signal based upon the analysis. The process control signal is then fed back to the planarization process to allow for the control of various parameters such as polishing slurry composition, temperature, flow rate, etc. The process control signal can also be used to control the conditioning process and/or determining the endpoint of the planarization process itself.
    Type: Grant
    Filed: January 25, 2005
    Date of Patent: January 23, 2007
    Assignee: TBW Industries Inc.
    Inventors: Stephen J. Benner, Yuzhuo Li
  • Patent number: 7052371
    Abstract: A method and apparatus for conditioning polishing pads that utilize an apertured conditioning disk for introducing operation-specific slurries, without the need for additional tooling, platens, and materials handling. The a method and apparatus utilize a vacuum capability to pull waste material out of the conditioning pad and through the apertured conditioning disk to evacuate the apparatus through an outlet port, the apparatus may also include self-contained flushing means and a piezo-electric device for vibrating the pad conditioning apparatus.
    Type: Grant
    Filed: May 29, 2003
    Date of Patent: May 30, 2006
    Assignee: TBW Industries Inc.
    Inventor: Stephen J. Benner
  • Patent number: 7040967
    Abstract: An arrangement for performing a multi-step polishing process on a single stage chemical mechanical planarization (CMP) apparatus utilizes an in-situ conditioning operation to continuously clean and evacuate debris and spent polishing slurry from the surface of the polishing pad. By presenting a clean, virtually “new” polishing pad surface at the beginning of each planarization cycle, polishing agents of different chemistries, morphologies, temperatures, etc. may be used without the need to remove the wafer to change the polishing source or transfer the wafer to another CMP polishing station. A multi-positional valve may be used to control the introduction of various process fluids, including a variety of different polishing slurries and conditioning/flushing agents. The use of different conditioning materials allows for the surface of the polishing pad to be altered for different process conditions (e.g.
    Type: Grant
    Filed: January 25, 2005
    Date of Patent: May 9, 2006
    Assignee: TBW Industries Inc.
    Inventor: Stephen J. Benner
  • Patent number: 4199298
    Abstract: A trailer for skid mounted tanks having a pair of sections, connectors on each section for connection on to the respective ends of the skids of a skid mounted tank, each section having cables and hydraulic cylinders for raising said skids into connection position with the respective sections, and adjustable stabilizing supports for securing the tank during transportation, the forward section having a gooseneck structure and a king pin for connection to the fifth wheel of a tractor.
    Type: Grant
    Filed: December 5, 1977
    Date of Patent: April 22, 1980
    Assignee: TBW Industries, Inc.
    Inventors: Rodney F. A. Webre, Jr., Oris H. Dinger, Jr.