Patents by Inventor Robert Steger

Robert Steger 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).

  • Publication number: 20060180275
    Abstract: Methods for making gas distribution members for plasma processing apparatuses are provided. The gas distribution members can be electrodes, gas distribution plates, or other members. The methods include fabricating gas injection holes in a gas distribution member by a suitable technique, e.g., a mechanical fabrication technique, measuring gas flow through the gas distribution member, and then adjusting the permeability of the gas distribution member by the same fabrication technique, or by a different technique, e.g., laser drilling. The permeability of the gas distribution member can be adjusted at one or more zones of the member.
    Type: Application
    Filed: February 15, 2005
    Publication date: August 17, 2006
    Inventor: Robert Steger
  • Publication number: 20060047458
    Abstract: A method of component management in a substrate processing system is disclosed. The substrate processing system has a set of components, at least a plurality of components of the set of components being designated to be smart components, each component of the plurality of components having an intelligent component enhancement (ICE). The method includes querying the plurality of components to request their respective unique identification data from their respective ICEs. The method further includes receiving unique identification data from the plurality of components if any of the plurality of components responds to the querying. The method additionally includes flagging the first component for corrective action if a first component of the plurality of components fails to provide first component unique identification data when the first component identification data is expected.
    Type: Application
    Filed: August 25, 2004
    Publication date: March 2, 2006
    Inventors: Neil Benjamin, Richard Gottscho, Nicolas Bright, Robert Steger
  • Patent number: 6952255
    Abstract: An optical alignment system for use in a semiconductor processing system is provided. The optical alignment system includes a wafer chuck that has an alignment feature integrated into the top surface of the wafer chuck. In addition, a beam-forming system, which is capable of emitting an optical signal onto the alignment feature, is disposed above the wafer chuck. Also, a detector is included that can detect an amplitude of the optical signal emitted onto the alignment feature. In one aspect, the alignment feature can be a reflective alignment feature that reflects a portion of the optical signal back to the beam detector. In additional aspect, the alignment feature can be a transmittance alignment feature capable of allowing a portion of the optical signal to pass through the wafer chuck to the detector. In this aspect, the detector can be disposed below the wafer chuck.
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: October 4, 2005
    Assignee: Lam Research Corporation
    Inventors: Andrew Perry, Robert Steger, Neil Benjamin
  • Publication number: 20050211385
    Abstract: A chuck for a plasma processor comprises a temperature-controlled base, a thermal insulator, a flat support, and a heater. The temperature-controlled base is controlled in operation a temperature below the desired temperature of a workpiece. The thermal insulator is disposed over at least a portion of the temperature-controlled base. The flat support holds a workpiece and is disposed over the thermal insulator. A heater is embedded within the flat support and/or mounted to an underside of the flat support. The heater includes a plurality of heating elements that heat a plurality of corresponding heating zones. The power supplied and/or temperature of each heating element is controlled independently. The heater and flat support have a combined temperature rate change of at least 1° C. per second.
    Type: Application
    Filed: December 2, 2004
    Publication date: September 29, 2005
    Inventors: Neil Benjamin, Robert Steger
  • Publication number: 20050173404
    Abstract: A chuck for a plasma processor comprises a temperature-controlled base, a thermal insulator, a flat support, and a heater. The temperature-controlled base has a temperature below the desired temperature of a workpiece. The thermal insulator is disposed over the temperature-controlled base. The flat support holds a workpiece and is disposed over the thermal insulator. A heater is embedded within the flat support and/or disposed on an underside of the flat support. The heater includes a plurality of heating elements that heat a plurality of corresponding heating zones. The power supplied and/or temperature of each heating element is controlled independently.
    Type: Application
    Filed: November 30, 2004
    Publication date: August 11, 2005
    Inventors: Neil Benjamin, Robert Steger
  • Publication number: 20050173403
    Abstract: A chuck for a plasma processor comprises a temperature-controlled base, a thermal insulator, a flat support, and a heater. The temperature-controlled base has a temperature below the desired temperature of a workpiece. The thermal insulator is disposed over the temperature-controlled base. The flat-support holds a workpiece and is disposed over the thermal insulator. A heater is embedded within the flat support and/or disposed on an underside of the flat support. The heater includes a plurality of heating elements that heat a plurality of corresponding heating zones. The power supplied and/or temperature of each heating element is controlled independently.
    Type: Application
    Filed: November 30, 2004
    Publication date: August 11, 2005
    Inventors: Neil Benjamin, Robert Steger
  • Publication number: 20050056622
    Abstract: A method for processing a plurality of substrates in a plasma processing chamber of a plasma processing system, each of the substrate being disposed on a chuck and surrounded by an edge ring during the processing. The method includes processing a first substrate of the plurality of substrates in accordance to a given process recipe in the plasma processing chamber. The method further includes adjusting, thereafter, a capacitance value of a capacitance along a capacitive path between a plasma sheath in the plasma processing chamber and the chuck through the edge ring by a given value. The method additionally includes processing a second substrate of the plurality of substrates in accordance to the given process recipe in the plasma processing chamber after the adjusting, wherein the adjusting is performed without requiring a change in the edge ring.
    Type: Application
    Filed: October 22, 2004
    Publication date: March 17, 2005
    Inventor: Robert Steger
  • Patent number: 6858265
    Abstract: Method and apparatus for improving the reproducibility of chucking forces of an electrostatic chuck used in plasma enhanced CVD processing of substrates provides for precoating of the electrostatic chuck with a dielectric layer, such as SiO2, after every chamber cleaning process. The uniform and tightly bonded dielectric layer deposited on the electrostatic chuck eliminates the need for a cover wafer over the chuck surface during the chamber cleaning and provides for more reliable gripping of wafers.
    Type: Grant
    Filed: February 18, 2003
    Date of Patent: February 22, 2005
    Assignee: Applied Materials, Inc.
    Inventors: Fred C. Redeker, Robert Steger, Shijian Li
  • Publication number: 20050030524
    Abstract: An optical alignment system for use in a semiconductor processing system is provided. The optical alignment system includes a wafer chuck that has an alignment feature integrated into the top surface of the wafer chuck. In addition, a beam-forming system, which is capable of emitting an optical signal onto the alignment feature, is disposed above the wafer chuck. Also, a detector is included that can detect an amplitude of the optical signal emitted onto the alignment feature. In one aspect, the alignment feature can be a reflective alignment feature that reflects a portion of the optical signal back to the beam detector. In additional aspect, the alignment feature can be a transmittance alignment feature capable of allowing a portion of the optical signal to pass through the wafer chuck to the detector. In this aspect, the detector can be disposed below the wafer chuck.
    Type: Application
    Filed: August 6, 2003
    Publication date: February 10, 2005
    Applicant: LAM Research Corp.
    Inventors: Andrew Perry, Robert Steger, Neil Benjamin
  • Publication number: 20050022736
    Abstract: A plasma processing reactor includes a chamber and a substrate support. The chamber includes an opening extending through a sidewall of the chamber. The substrate support is removably mounted within the chamber. The opening of the chamber is large enough to allow the substrate support to be removed from the chamber through the opening. A portion of a surface of the inner sidewall and the substrate support within the chamber has a coating. The coating is made of an electrically resistive material. The coating creates an impedance along the portion of the surface of the inner sidewall, which would otherwise carry a greater portion of the RF return current than the opposite side of the chamber. The coating also creates an impedance along the substrate support so that the density of the RF return current along the surface of the inner walls of the chamber is substantially more uniform.
    Type: Application
    Filed: July 29, 2003
    Publication date: February 3, 2005
    Inventor: Robert Steger
  • Patent number: 6847014
    Abstract: A chuck for a plasma processor comprises a temperature-controlled base, a thermal insulator, a flat support, and a heater. The temperature-controlled base has a temperature below the desired temperature of a workpiece. The thermal insulator is disposed over the temperature-controlled base. The flat support holds a workpiece and is disposed over the thermal insulator. A heater is embedded within the flat support and/or disposed on an underside of the flat support. The heater includes a plurality of heating elements that heat a plurality of corresponding heating zones. The power supplied and/or temperature of each heating element is controlled independently.
    Type: Grant
    Filed: February 1, 2002
    Date of Patent: January 25, 2005
    Assignee: Lam Research Corporation
    Inventors: Neil Benjamin, Robert Steger
  • Publication number: 20030180459
    Abstract: Method and apparatus for improving the reproducibility of chucking forces of an electrostatic chuck used in plasma enhanced CVD processing of substrates provides for precoating of the electrostatic chuck with a dielectric layer, such as SiO2, after every chamber cleaning process. The uniform and tightly bonded dielectric layer deposited on the electrostatic chuck eliminates the need for a cover wafer over the chuck surface during the chamber cleaning and provides for more reliable gripping of wafers.
    Type: Application
    Filed: February 18, 2003
    Publication date: September 25, 2003
    Applicant: Applied Materials, Inc.
    Inventors: Fred C. Redeker, Robert Steger, Shijian Li
  • Patent number: 6444083
    Abstract: A corrosion resistant component of semiconductor processing equipment such as a plasma chamber includes a metal surface such as aluminum or aluminum alloy, stainless steel, or refractory metal coated with a phosphorus nickel plating and an outer ceramic coating such as alumina, silicon carbide, silicon nitride, boron carbide or aluminum nitride. The phosphorus nickel plating can be deposited by electroless plating and the ceramic coating can be deposited by thermal spraying. To promote adhesion of the ceramic coating, the phosphorus nickel plating can be subjected to a surface roughening treatment prior to depositing the ceramic coating.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: September 3, 2002
    Assignee: Lam Research Corporation
    Inventors: Robert Steger, Chris Chang
  • Patent number: 5730803
    Abstract: The present invention discloses an apparatus and method for transferring heat from a hot electrostatic chuck to an underlying cold plate. Further, the overall structure of the electrostatic chuck in combination with the heat transfer apparatus of the present invention permits the thermal and pressure isolation of the high-temperature, vacuum process chamber containing the work piece processing surface of the electrostatic chuck from the low-temperature, atmospheric pressured heat transfer apparatus of the present invention.
    Type: Grant
    Filed: February 23, 1996
    Date of Patent: March 24, 1998
    Assignee: Applied Materials, Inc.
    Inventors: Robert Steger, James Taoka, Gregory Shmunis
  • Patent number: 5534108
    Abstract: A magnetic field enhanced plasma etch reactor system and method of operation is disclosed. In the system and operation, modulated sinusoidal currents are generated and applied 90.degree. out of phase to opposing pairs of series connected electromagnets to produce a modified rotating magnetic field parallel to a substrate processed in the system. The modification of the rotating magnetic field, in turn, results in an improvement in the uniformity of the etch pattern over the upper surface of the substrate.
    Type: Grant
    Filed: March 7, 1995
    Date of Patent: July 9, 1996
    Assignee: Applied Materials, Inc.
    Inventors: Xue-Yu Qian, Gerald Yin, Graham W. Hills, Robert Steger