Patents Assigned to TBW Industries, Inc.
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Patent number: 8025555Abstract: 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: GrantFiled: January 31, 2011Date of Patent: September 27, 2011Assignee: TBW Industries Inc.Inventor: Stephen J. Benner
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Patent number: 7913705Abstract: 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: GrantFiled: February 7, 2008Date of Patent: March 29, 2011Assignee: TBW Industries, Inc.Inventor: Stephen J. Benner
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Patent number: 7909910Abstract: 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: GrantFiled: October 5, 2007Date of Patent: March 22, 2011Assignee: TBW Industries Inc.Inventor: Stephen J. Benner
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Patent number: 7901267Abstract: 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: GrantFiled: May 7, 2009Date of Patent: March 8, 2011Assignee: TBW Industries, Inc.Inventor: Stephen J. Benner
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Patent number: 7575503Abstract: 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: GrantFiled: August 13, 2007Date of Patent: August 18, 2009Assignee: TBW Industries, Inc.Inventor: Stephen J. Benner
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Patent number: 7544113Abstract: 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: GrantFiled: November 18, 2005Date of Patent: June 9, 2009Assignee: TBW Industries, Inc.Inventor: Stephen J. Benner
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Patent number: 7258600Abstract: 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: GrantFiled: April 7, 2004Date of Patent: August 21, 2007Assignee: TBW Industries, Inc.Inventor: Stephen J. Benner
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Patent number: 7217172Abstract: 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: GrantFiled: July 10, 2006Date of Patent: May 15, 2007Assignee: TBW Industries Inc.Inventor: Stephen J. Benner
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Patent number: 7166014Abstract: 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: GrantFiled: January 25, 2005Date of Patent: January 23, 2007Assignee: TBW Industries Inc.Inventors: Stephen J. Benner, Yuzhuo Li
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Patent number: 7052371Abstract: 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: GrantFiled: May 29, 2003Date of Patent: May 30, 2006Assignee: TBW Industries Inc.Inventor: Stephen J. Benner
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Patent number: 7040967Abstract: 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: GrantFiled: January 25, 2005Date of Patent: May 9, 2006Assignee: TBW Industries Inc.Inventor: Stephen J. Benner
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Patent number: 4199298Abstract: 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: GrantFiled: December 5, 1977Date of Patent: April 22, 1980Assignee: TBW Industries, Inc.Inventors: Rodney F. A. Webre, Jr., Oris H. Dinger, Jr.