Patents by Inventor William R. Harshbarger

William R. Harshbarger 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: 8002896
    Abstract: A shadow frame and framing system for semiconductor fabrication equipment comprising a rectangular frame having four edges, the edges forming an interior lip with a top surface and an bottom engagement surface; and a cross beam disposed between at least two edges of the frame, the cross beam having a top surface and a bottom engagement surface, the engagement surface of the cross beam configured to be flush with the engagement surface of the lip; wherein one or more of the engagement surfaces are configured to cover metal interconnect bonding areas on a carrier disposed below the frame. The shadow frame is particularly useful in plasma enhanced chemical vapor deposition (PECVD) applications used to make active matrix liquid crystal displays (AMLCDs) and solar cells.
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: August 23, 2011
    Assignee: Applied Materials, Inc.
    Inventors: Sakae Tanaka, Qunhua Wang, Sanjay Yadav, Quanyuan Shang, William R. Harshbarger
  • Patent number: 7915114
    Abstract: Method of fabricating a thin-film transistor (TFT) in which a gate metal is deposited onto a substrate in order to form the gate of the thin-film transistor. The substrate may be an insulative substrate or a color filter. In a first method, the gate metal is subjected to an H2 plasma. After subjecting the gate metal to an H2 plasma, the gate insulating film is deposited onto the gate. In a second method, first and second layers of gate insulating film are respectively deposited on the gate at a first and second deposition rates. One layer is deposited under H2 or argon dilution conditions and has improved insulating conditions while the other layer serves to lower the overall compressive stress of the dual layer gate insulator. In a third method, an n+ silicon film is formed on a substrate by maintaining a flow of silane, phosphine and hydrogen gas into a processing chamber at substrate temperatures of about 300° C. or less.
    Type: Grant
    Filed: November 27, 2007
    Date of Patent: March 29, 2011
    Assignee: Applied Materials, Inc.
    Inventors: Mark Hsiao, Dong-Kil Yim, Takako Takehara, Quanyuan Shang, William R. Harshbarger, Woong-Kwon Kim, Duk-Chul Yun, Youn-Gyung Chang
  • Patent number: 7300829
    Abstract: Method of fabricating a thin-film transistor (TFT) in which a gate metal is deposited onto a substrate in order to form the gate of the thin-film transistor. The substrate may be an insulative substrate or a color filter. In a first method, the gate metal is subjected to an H2 plasma. After subjecting the gate metal to an H2 plasma, the gate insulating film is deposited onto the gate. In a second method, first and second layers of gate insulating film are respectively deposited on the gate at a first and second deposition rates. One layer is deposited under H2 or argon dilution conditions and has improved insulating conditions while the other layer serves to lower the overall compressive stress of the dual layer gate insulator. In a third method, an n+ silicon film is formed on a substrate by maintaining a flow of silane, phosphine and hydrogen gas into a processing chamber at substrate temperatures of about 300° C. or less.
    Type: Grant
    Filed: June 2, 2003
    Date of Patent: November 27, 2007
    Assignee: Applied Materials, Inc.
    Inventors: Mark Hsiao, Dong-Kil Yim, Takako Takehara, Quanyuan Shang, William R. Harshbarger, Woong-Kwon Kim, Duk-Chul Yun, Youn-Gyung Chang
  • Patent number: 7160392
    Abstract: A substrate support assembly and method for dechucking a substrate is provided. In one embodiment, a support assembly includes a substrate support having a support surface, a first set of lift pins and one or more other lift pins movably disposed through the substrate support. The first set of lift pins and the one or more lift pins project from the support surface when the pins are in an actuated position. When in the actuated position, the first set of lift pins project a longer distance from the support surface than the one or more other lift pins. In another aspect of the invention, a method for dechucking a substrate from a substrate support is provided. In one embodiment, the method includes the steps of projecting a first set of lift pins a first distance above a surface of a substrate support, and projecting a second set of lift pins a second distance above the surface of the substrate support that is less than the first distance.
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: January 9, 2007
    Assignee: Applied Materials, Inc.
    Inventors: Quanyuan Shang, William R. Harshbarger, Robert L. Greene, Ichiro Shimizu
  • Patent number: 7122962
    Abstract: A plasma display panel including a low k dielectric layer. In one embodiment, the dielectric layer is comprises a fluorine-doped silicon oxide layer such as an SiOF layer. In another embodiment, the dielectric layer comprises a Black Diamond™ layer. In certain embodiments, a capping layer such as SiN or SiON is deposited over the dielectric layer.
    Type: Grant
    Filed: June 11, 2003
    Date of Patent: October 17, 2006
    Assignee: Applied Materials, Inc.
    Inventors: Kam S. Law, Quanyuan Shang, Takako Takehara, Taekyung Won, William R. Harshbarger, Dan Maydan
  • Patent number: 7086918
    Abstract: An organic electroluminescent device comprising an anode layer on a substrate, an organic layer on the anode layer, and a cathode layer on the organic layer. In one embodiment, the cathode layer is subjected to H2 plasma prior to deposition of a protective layer over the cathode. In another embodiment, the organic electroluminescent device is encapsulated with an inner encapsulation layer on the cathode layer, and an outer encapsulation layer on the inner encapsulation layer. The inner layer is optimized for adhesion to the cathode layer.
    Type: Grant
    Filed: December 11, 2002
    Date of Patent: August 8, 2006
    Assignee: Applied Materials, Inc.
    Inventors: Mark Hsiao, Takako Takehara, Quanyuan Shang, William R. Harshbarger
  • Patent number: 6981508
    Abstract: Provided herein is a method for cleaning a process chamber for semiconductor and/or flat panel display manufacturing. This method comprises the steps of converting a non-cleaning feed gas to a cleaning gas in a remote location and then delivering the cleaning gas to the process chamber for cleaning. Such method may further comprise the step of activating the cleaning gas outside the chamber before the delivery of the gas to the chamber. Also provided is a method of eliminating non-cleaning feed gas from the cleaning gas by cryo condensation.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: January 3, 2006
    Assignee: Applied Materials, Inc.
    Inventors: Quanyuan Shang, Sanjay Yadav, William R. Harshbarger, Kam S. Law
  • Patent number: 6962732
    Abstract: Processes for controlling thickness uniformity of thin organosilicate films as they are deposited on a substrate, and as they finally result. During deposition of the film, which may be accomplished by CVD, PECVD, rapid thermal processing or the like, the substrate temperature is controlled to establish a temperature profile particularly suited to the extreme temperature sensitivities of the deposition rates of organosilicate films such as those deposited from TEOS as a source material.
    Type: Grant
    Filed: August 23, 2001
    Date of Patent: November 8, 2005
    Assignee: Applied Materials, Inc.
    Inventors: Tae Kyung Won, Takako Takehara, William R. Harshbarger
  • Patent number: 6960263
    Abstract: A shadow frame and framing system for semiconductor fabrication equipment comprising a rectangular frame having four edges, the edges forming an interior lip with a top surface and an bottom engagement surface; and a cross beam disposed between at least two edges of the frame, the cross beam having a top surface and a bottom engagement surface, the engagement surface of the cross beam configured to be flush with the engagement surface of the lip; wherein one or more of the engagement surfaces are configured to cover metal interconnect bonding areas on a carrier disposed below the frame. The shadow frame is particularly useful in plasma enhanced chemical vapor deposition (PECVD) applications used to make active matrix liquid crystal displays (AMLCDs) and solar cells.
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: November 1, 2005
    Assignee: Applied Materials, Inc.
    Inventors: Sakae Tanaka, Qunhua Wang, Sanjay Yadav, Quanyuan Shang, William R. Harshbarger
  • Patent number: 6880561
    Abstract: A process for removing residue from the interior of a semiconductor process chamber using molecular fluorine gas (F2) as the principal precursor reagent. In one embodiment a portion of the molecular fluorine is decomposed in a plasma to produce atomic fluorine, and the resulting mixture of atomic fluorine and molecular fluorine is supplied to the chamber whose interior is to be cleaned. In another embodiment the molecular fluorine gas cleans the semiconductor process chamber without any plasma excitation. Molecular fluorine gas has the advantage of not being a global warming gas, unlike fluorine-containing gas compounds conventionally used for chamber cleaning such as NF3, C2F6 and SF6.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: April 19, 2005
    Assignee: Applied Materials, Inc.
    Inventors: Haruhiro Harry Goto, William R. Harshbarger, Quanyuan Shang, Kam S. Law
  • Patent number: 6863077
    Abstract: A system for processing substrates within a chamber and for cleaning accumulated material from chamber components is provided. The system includes a reactive species generator adapted to generate a reactive gas species for chemically etching accumulated material from chamber components, and a processing chamber having at least one component with a mirror polished surface which is exposed to the reactive species. Preferably to have the greatest impact on chamber cleaning efficiency, the mirror polished surface is a surface of a component such as a gas distribution plate or a backing plate, and/or is a surface of a plurality of smaller components (e.g., chamber wall liners, a gas conductance line, etc.) so as to constitute a large percentage of the surface area exposed to the reactive species. Most preferably all bare aluminum surfaces which the reactive species contacts are mirror polished.
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: March 8, 2005
    Assignee: Applied Materials, Inc.
    Inventors: Sheng Sun, Quanyuan Shang, William R. Harshbarger, Robert I. Greene
  • Patent number: 6858548
    Abstract: A process for depositing a low dielectric constant layer (k<3) on a flat panel display and a flat panel display. The process includes reacting one or more organosilicon compounds with an oxygen containing compound at an RF power level from about 0.345 W/cm2 to about 1.265 W/cm2. The flat panel display includes a plasma display panel having a first substrate, a plurality of barriers deposited on the first substrate, a second substrate, a low dielectric constant layer (k<3) deposited on the second substrate, and a plurality of ground electrodes formed between the barriers and the dielectric layer.
    Type: Grant
    Filed: April 18, 2002
    Date of Patent: February 22, 2005
    Assignee: Applied Materials, Inc.
    Inventors: Tae Kyung Won, Quanyuan Shang, William R. Harshbarger
  • Patent number: 6843258
    Abstract: Provided herein is a method for cleaning a process chamber for semiconductor and/or flat panel display manufacturing. This method comprises the steps of converting a non-cleaning feed gas to a cleaning gas in a remote location and then delivering the cleaning gas to the process chamber for cleaning. Such method may further comprise the step of activating the cleaning gas outside the chamber before the delivery of the gas to the chamber. Also provided is a method of eliminating non-cleaning feed gas from the cleaning gas by cryo condensation.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: January 18, 2005
    Assignee: Applied Materials, Inc.
    Inventors: Quanyuan Shang, Sanjay Yadav, William R. Harshbarger, Kam S. Law
  • Patent number: 6827987
    Abstract: Provided herein is a method of reducing an electrostatic charge on a substrate during a plasma enhanced chemical vapor deposition process, comprising the step of depositing a conductive layer onto a top surface of a susceptor support plate disposed within a deposition chamber wherein the conductive layer dissipates the electrostatic charge on the bottom surface of the substrate during a plasma enhanced chemical vapor deposition process. Also provided are a method of depositing a thin film during a plasma enhanced chemical vapor deposition process using the methods disclosed herein and a conductive susceptor.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: December 7, 2004
    Assignee: Applied Materials, Inc.
    Inventors: Tae Kyung Won, Soo Young Choi, Takako Takehara, William R. Harshbarger
  • Publication number: 20040241920
    Abstract: Method of fabricating a thin-film transistor (TFT) in which a gate metal is deposited onto a substrate in order to form the gate of the thin-film transistor. The substrate may be an insulative substrate or a color filter. In a first method, the gate metal is subjected to an H2 plasma. After subjecting the gate metal to an H2 plasma, the gate insulating film is deposited onto the gate. In a second method, first and second layers of gate insulating film are respectively deposited on the gate at a first and second deposition rates. One layer is deposited under H2 or argon dilution conditions and has improved insulating conditions while the other layer serves to lower the overall compressive stress of the dual layer gate insulator. In a third method, an n+ silicon film is formed on a substrate by maintaining a flow of silane, phosphine and hydrogen gas into a processing chamber at substrate temperatures of about 300° C. or less.
    Type: Application
    Filed: June 2, 2003
    Publication date: December 2, 2004
    Applicants: Applied Materials, Inc., LG Philips Displays USA, Inc.
    Inventors: Mark Hsiao, Dong-Kil Yim, Takako Takehara, Quanyuan Shang, William R. Harshbarger, Woong-Kwon Kim, Duk-Chul Yun, Youn-Gyung Chang
  • Patent number: 6825134
    Abstract: A method of film layer deposition is described. A film layer is deposited using a cyclical deposition process. The cyclical deposition process consists essentially of a continuous flow of one or more process gases and the alternate pulsing of a precursor and energy to form a film on a substrate structure.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: November 30, 2004
    Assignee: Applied Materials, Inc.
    Inventors: Kam S. Law, Quanyuan Shang, William R. Harshbarger, Dan Maydan, Soo Young Choi, Beom Soo Park, Sanjay Yadav, John M. White
  • Publication number: 20040216768
    Abstract: Provided herein is a method for cleaning a process chamber for semiconductor and/or flat panel display manufacturing. This method comprises the steps of converting a non-cleaning feed gas to a cleaning gas in a remote location and then delivering the cleaning gas to the process chamber for cleaning. Such method may further comprise the step of activating the cleaning gas outside the chamber before the delivery of the gas to the chamber. Also provided is a method of eliminating non-cleaning feed gas from the cleaning gas by cryo condensation.
    Type: Application
    Filed: May 27, 2004
    Publication date: November 4, 2004
    Inventors: Quanyuan Shang, Sanjay Yadav, William R. Harshbarger, Kam S. Law
  • Publication number: 20040113542
    Abstract: An organic electroluminescent device comprising an anode layer on a substrate, an organic layer on the anode layer, and a cathode layer on the organic layer. In one embodiment, the cathode layer is subjected to H2 plasma prior to deposition of a protective layer over the cathode. In another embodiment, the organic electroluminescent device is encapsulated with an inner encapsulation layer on the cathode layer, and an outer encapsulation layer on the inner encapsulation layer. The inner layer is optimized for adhesion to the cathode layer.
    Type: Application
    Filed: December 11, 2002
    Publication date: June 17, 2004
    Applicant: Applied Materials, Inc.
    Inventors: Mark Hsiao, Takako Takehara, Quanyuan Shang, William R. Harshbarger
  • Publication number: 20040089239
    Abstract: A substrate support assembly and method for dechucking a substrate is provided. In one embodiment, a support assembly includes a substrate support having a support surface, a first set of lift pins and one or more other lift pins movably disposed through the substrate support. The first set of lift pins and the one or more lift pins project from the support surface when the pins are in an actuated position. When in the actuated position, the first set of lift pins project a longer distance from the support surface than the one or more other lift pins. In another aspect of the invention, a method for dechucking a substrate from a substrate support is provided. In one embodiment, the method includes the steps of projecting a first set of lift pins a first distance above a surface of a substrate support, and projecting a second set of lift pins a second distance above the surface of the substrate support that is less than the first distance.
    Type: Application
    Filed: October 17, 2003
    Publication date: May 13, 2004
    Applicant: Applied Materials, Inc.
    Inventors: Quanyuan Shang, William R. Harshbarger, Robert I. Greene, Ichiro Shimizu
  • Patent number: 6676761
    Abstract: A substrate support assembly and method for dechucking a substrate is provided. In one embodiment, a support assembly includes a substrate support having a support surface, a first set of lift pins and one or more other lift pins movably disposed through the substrate support. The first set of lift pins and the one or more lift pins project from the support surface when the pins are in an actuated position. When in the actuated position, the first set of lift pins project a longer distance from the support surface than the one or more other lift pins. In another aspect of the invention, a method for dechucking a substrate from a substrate support is provided. In one embodiment, the method includes the steps of projecting a first set of lift pins a first distance above a surface of a substrate support, and projecting a second set of lift pins a second distance above the surface of the substrate support that is less than the first distance.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: January 13, 2004
    Assignee: Applied Materials, Inc.
    Inventors: Quanyuan Shang, William R. Harshbarger, Robert L. Greene, Ichiro Shimizu