Patents by Inventor Michael R. Vogtmann

Michael R. Vogtmann 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: 9393669
    Abstract: Some embodiments provide methods of processing wafers comprising: positioning a stacked wafer into a position to be ground, wherein the stacked wafer comprises a first wafer secured with a carrier-wafer, wherein the first wafer is secured with the carrier-wafer such that a surface of the first wafer is exposed to be ground; initiating a grinding of the first wafer while supported by the carrier-wafer; activating one or more sensors relative to the first wafer while grinding the first wafer; determining, while grinding the first wafer, a thickness of the first wafer separate from a thickness of the carrier-wafer as a function of data from the one or more sensors; determining whether the determined thickness of the first wafer has a predefined relationship with a first thickness threshold; and halting the wafer grinding when the thickness of the first wafer has the predefined relationship with the first thickness threshold.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: July 19, 2016
    Assignee: Strasbaugh
    Inventors: William J. Kalenian, Thomas A. Walsh, Michael R. Vogtmann, Benjamin C. Smedley, Larry A. Spiegel, Thomas E. Brake
  • Patent number: 8968052
    Abstract: Systems and methods are provided for use in processing and/or grinding wafers or other work products. Some embodiments provide a grinding apparatus that comprise a base casting; a rotary indexer configured to rotate within the base casting; a work spindle secured with the rotary indexer; a work chuck coupled with the first work spindle, wherein the first work spindle is configured to rotate the first work chuck; a bridge casting secured relative to the base casting, wherein the bridge casting bridges across at least a portion of the rotary indexer and is supported structurally forming a closed stiffness loop; a grind spindle secured with the bridge casting; and a grind wheel cooperated with the grind spindle, wherein the bridge casting secures the grind spindle.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: March 3, 2015
    Assignee: Strasbaugh
    Inventors: Thomas A. Walsh, Michael R. Vogtmann
  • Patent number: 8520222
    Abstract: A system for holding non-contact wafer probes over the surface of a wafer which includes a system for flushing the surface of the probe during grinding.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: August 27, 2013
    Assignee: Strasbaugh
    Inventors: Frederic Anthony Schraub, Michael R. Vogtmann, Benjamin C. Smedley
  • Publication number: 20130114090
    Abstract: A system for holding non-contact wafer probes over the surface of a wafer which includes a system for flushing the surface of the probe during grinding.
    Type: Application
    Filed: November 8, 2011
    Publication date: May 9, 2013
    Inventors: Frederic Anthony Schraub, Michael R. Vogtmann, Benjamin C. Smedley
  • Patent number: 6796881
    Abstract: In a machine for planarizing wafers, when a spindle carrier descends over the load station, it needs a way of determining whether it should descend to a first position suitable for depositing a wafer onto the load station or whether it should descend to a lower second position suitable for acquiring a wafer that is already present on the load station. The present invention provides a way of making this determination. The load station includes three upwardly-directed nozzles for use in supporting a wafer on three separate spaced cushions of purified water. The nozzles are supplied through branch conduits from a supply main. When no wafer is present, the pressurized water meets with little resistance as it is discharged from the nozzles. Accordingly, the pressure in the branches is relatively low. In contrast, when a wafer is present the wafer partially impedes the discharge of the water from the nozzles, causing the pressure in the branches to be greater than when no wafer is present.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: September 28, 2004
    Assignee: Lam Research Corporation
    Inventors: Michael R. Vogtmann, Terry L. Lentz
  • Patent number: 6632012
    Abstract: Exemplary methods, systems and apparatus are provided for accomplishing mixing of chemistries, such as those used in polishing materials used in semiconductor manufacturing. A manifold is provided that combines chemistries with a mixing element, for example, so that the stability of the chemical solution can be maintained so as to facilitate polishing. The mixing element can be oriented in a stationary position, or alternatively, it can be agitated.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: October 14, 2003
    Assignee: Wafer Solutions, Inc.
    Inventors: Michael R. Vogtmann, Michael S. Wisnieski
  • Patent number: 6505635
    Abstract: A nozzle that extends telescopically upward is used to elevate a wafer without contacting the wafer. The nozzle includes a stationary hollow cylinder, closed at its lower end and open at its upper end, within which a spool is disposed to slide vertically. In its lowest position the spool is spaced from the closed bottom of the cylinder, and purified water is supplied under pressure to the space. A passage extends vertically through the spool, and the water is discharged at the upper end of the spool from the passage. As a wafer is lowered toward the upper end of the spool, the wafer partially impedes the discharge, increasing the pressure in the space below the spool. The increased pressure drives the spool and the wafer upward, but the wafer never comes into contact with the wafer because the discharge of water creates a protective cushion between them.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: January 14, 2003
    Assignee: Lam Research Corporation
    Inventors: Michael R. Vogtmann, Terry L. Lentz
  • Publication number: 20020141284
    Abstract: Exemplary methods, systems and apparatus are provided for accomplishing mixing of chemistries, such as those used in polishing materials used in semiconductor manufacturing. A manifold is provided that combines chemistries with a mixing element, for example, so that the stability of the chemical solution can be maintained so as to facilitate polishing. The mixing element can be oriented in a stationary position, or alternatively, it can be agitated.
    Type: Application
    Filed: April 30, 2001
    Publication date: October 3, 2002
    Inventors: Michael R. Vogtmann, Michael S. Wisnieski
  • Patent number: 6405740
    Abstract: A load station is used in a planarizing machine to perform several useful functions related to handling of a wafer. By centering the wafer with respect to a spindle carrier the load station interrupts the accumulation of positional errors. The load station never makes solid contact with the wafer, but instead the wafer is continually levitated on three cushions of water that are directed upwardly against the lower face of the wafer. The presence of the wafer partially impedes the flow of water from the nozzles used for levitation causing an increase in the water pressure immediately upstream of the nozzles. This increased pressure is sensed and used as an indicator of the presence of a wafer at the load station. The load station further includes a nozzle that directs a stream against the lower side of the wafer so as to elevate the wafer from the load station into the carrier.
    Type: Grant
    Filed: August 2, 2000
    Date of Patent: June 18, 2002
    Assignee: Lam Research Corporation
    Inventors: Michael R. Vogtmann, Terry L. Lentz
  • Patent number: 6283827
    Abstract: In one type of planarizing machine, a wafer is maintained with its fragile processed side facing downward as the wafer is passed from a robot to a load station and from the load station to a spindle carrier, and then returned from the spindle carrier to the load station to the robot. These transfers must be accomplished without anything solid contacting the downwardly facing side of the wafer. This is accomplished by supporting the wafer, while it is on the load station, on cushions of purified water. The cushions are formed at three spaced areas on the lower side of the wafer by upwardly-directed nozzles located below the wafer. The purified water is discharged with sufficient force to prevent the wafer from contacting the nozzles. The use of three separate cushions insures stability of the wafer.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: September 4, 2001
    Assignee: Lam Research Corporation
    Inventors: Michael R. Vogtmann, Terry L. Lentz
  • Patent number: 6267642
    Abstract: In a machine for planarizing wafers, when a spindle carrier descends over the load station, it needs a way of determining whether it should descend to a first position suitable for depositing a wafer onto the load station or whether it should descend to a lower second position suitable for acquiring a wafer that is already present on the load station. The present invention provides a way of making this determination. The load station includes three upwardly-directed nozzles for use in supporting a wafer on three separate spaced cushions of purified water. The nozzles are supplied through branch conduits from a supply main. When no wafer is present, the pressurized water meets with little resistance as it is discharged from the nozzles. Accordingly, the pressure in the branches is relatively low. In contrast, when a wafer is present the wafer partially impedes the discharge of the water from the nozzles, causing the pressure in the branches to be greater than when no wafer is present.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: July 31, 2001
    Assignee: Lam Research Corporation
    Inventors: Michael R. Vogtmann, Terry L. Lentz
  • Patent number: 6131589
    Abstract: A load station is used in a planarizing machine to perform several useful functions related to handling of a wafer. By centering the wafer with respect to a spindle carrier the load station interrupts the accumulation of positional errors. The load station never makes solid contact with the wafer, but instead the wafer is continually levitated on three cushions of water that are directed upwardly against the lower face of the wafer. The presence of the wafer partially impedes the flow of water from the nozzles used for levitation causing an increase in the water pressure immediately upstream of the nozzles. This increased pressure is sensed and used as an indicator of the presence of a wafer at the load station. The load station further includes a nozzle that directs a stream against the lower side of the wafer so as to elevate the wafer from the load station into the carrier.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: October 17, 2000
    Assignee: Strasbaugh, Inc.
    Inventors: Michael R. Vogtmann, Terry L. Lentz
  • Patent number: 6102057
    Abstract: A nozzle that extends telescopically upward is used to elevate a wafer without contacting the wafer. The nozzle includes a stationary hollow cylinder, closed at its lower end and open at its upper end, within which a spool is disposed to slide vertically. In its lowest position the spool is spaced from the closed bottom of the cylinder, and purified water is supplied under pressure to the space. A passage extends vertically through the spool, and the water is discharged at the upper end of the spool from the passage. As a wafer is lowered toward the upper end of the spool, the wafer partially impedes the discharge, increasing the pressure in the space below the spool. The increased pressure drives the spool and the wafer upward, but the wafer never comes into contact with the wafer because the discharge of water creates a protective cushion between them.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: August 15, 2000
    Assignee: STRASBAUGH
    Inventors: Michael R. Vogtmann, Terry L. Lentz