Patents by Inventor David W. Groechel

David W. Groechel 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: 20190352775
    Abstract: Embodiments described herein relate to a gas line cleaning system and a method of cleaning gas lines. The gas line cleaning system includes a connector having a first end and a second end, and a fluid system. The fluid system includes a fluid source configured to flow a fluid through a fluid conduit connected to the first end, and an ultrasonic transducer coupled to the fluid conduit configured to apply an ultrasonic energy to the fluid conduit to agitate the fluid. The ultrasonic energy creates a mechanical energy that reverberates in the fluid conduit and propagates into the fluid to remove particles that may have formed on an inside surface of a gas line connected to the second end and carry away particles inside the gas line.
    Type: Application
    Filed: May 15, 2019
    Publication date: November 21, 2019
    Inventors: Gang PENG, Halbert CHONG, Marcus PEREIRA, David W. GROECHEL
  • Publication number: 20190341276
    Abstract: Embodiments described herein relate to chamber component cleaning systems and methods for cleaning a chamber component. The chamber component cleaning system includes a spray station, at least a first cleaning station, a dry station, a component transfer mechanism, and one or more enclosures that enclose the spray station, at least the first cleaning station, the dry station, and the component transfer mechanism. The spray station has a holder to position a chamber component in a path of a flow of a cleaning spray and a movable nozzle to provide the flow of the cleaning spray at a first pressure in a path of portions of the chamber component. The first cleaning station has a push mechanism to force a cleaning fluid through features and/or holes of the chamber component and at least one movable transducer to provide ultrasonic energy to the portions of the chamber component.
    Type: Application
    Filed: May 1, 2019
    Publication date: November 7, 2019
    Inventors: Jenn C. CHOW, David W. GROECHEL, Tuochuan HUANG, Dorothea BUECHEL-RIMMEL, Han WANG, Li WU, Gang PENG
  • Patent number: 10434604
    Abstract: A system to provide a texture to a surface of a component for use in a semiconductor processing chamber is provided. The system includes an enclosure comprising a processing region, a support disposed in the processing region, a photon light source to generate a stream of photons, an optical module operably coupled to the photon light source, and a lens. The optical module includes a beam modulator to create a beam of photons from the stream of photons generated from the photon light source, and a beam scanner to scan the beam of photons across the surface of the component. The lens is used to receive the beam of photons from the beam scanner and distribute the beam of photons at a wavelength in a range between about 345 nm and about 1100 nm across the surface of the component to form a plurality of features on the component.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: October 8, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Gang Peng, David W. Groechel, Jenn C. Chow, Tuochuan Huang, Han Wang
  • Publication number: 20190291214
    Abstract: Embodiments of the present disclosure provide methods of laser assisted modification, i.e., laser polishing, of ceramic substrates, or ceramic coated substrates, to desirably reduce the surface roughness and porosity thereof. In one embodiment, a method of laser polishing a workpiece surface includes scanning at least a portion of the workpiece surface with a pulsed laser beam. The laser beam has a pulse frequency of about 50 kHz or more and a spot size of about 10 mm2 or less and the workpiece surface comprises a ceramic material.
    Type: Application
    Filed: March 20, 2019
    Publication date: September 26, 2019
    Inventors: Gang Grant PENG, David W. GROECHEL, Tuochuan HUANG
  • Publication number: 20180257172
    Abstract: A system to provide a texture to a surface of a component for use in a semiconductor processing chamber is provided. The system includes an enclosure comprising a processing region, a support disposed in the processing region, a photon light source to generate a stream of photons, an optical module operably coupled to the photon light source, and a lens. The optical module includes a beam modulator to create a beam of photons from the stream of photons generated from the photon light source, and a beam scanner to scan the beam of photons across the surface of the component. The lens is used to receive the beam of photons from the beam scanner and distribute the beam of photons at a wavelength in a range between about 345 nm and about 1100 nm across the surface of the component to form a plurality of features on the component.
    Type: Application
    Filed: April 17, 2018
    Publication date: September 13, 2018
    Inventors: Gang PENG, David W. GROECHEL, Jenn C. CHOW, Tuochuan HUANG, Han WANG
  • Publication number: 20180230616
    Abstract: The present disclosure generally relates to methods of electro-depositing a crystalline layer of pure aluminum onto the surface of an aluminum alloy article. The methods may include positioning the article and an electrode in an electro-deposition solution. The electro-deposition solution includes one or more of an aluminum halide, an organic chloride salt, an aluminum reducing agent, a solvent such as a nitrile compound, and an alkali metal halide. The solution is blanketed with an inert gas, agitated, and a crystalline layer of aluminum is deposited on the article by applying a bias voltage to the article and the electrode.
    Type: Application
    Filed: January 30, 2018
    Publication date: August 16, 2018
    Inventors: David W. GROECHEL, Gang PENG, Robert MIKKOLA
  • Publication number: 20180104767
    Abstract: A method of providing a texture to a surface of a component for use in a semiconductor processing chamber is provided. The method includes directing a beam of photons at the surface of the component and scanning the beam of photons across a first region of the surface of the component to form a plurality of features on the surface within the first region. The features that are formed are depressions, protuberances, or combinations thereof.
    Type: Application
    Filed: October 10, 2017
    Publication date: April 19, 2018
    Inventors: Gang PENG, David W. GROECHEL
  • Patent number: 6623596
    Abstract: A plasma reactor for processing a workpiece includes a reactor enclosure defining a processing chamber, a base within the chamber for supporting the workpiece during processing thereof, a semiconductor window electrode overlying the base, a gas inlet system for admitting a plasma precursor gas into the chamber, an electrical terminal coupled to the semiconductor window electrode, an inductive antenna adjacent one side of the semiconductor window electrode opposite the base for coupling power into the interior of said chamber through the semiconductor window electrode.
    Type: Grant
    Filed: March 13, 2000
    Date of Patent: September 23, 2003
    Assignee: Applied Materials, Inc
    Inventors: Kenneth S. Collins, Michael Rice, John Trow, Douglas Buchberger, Eric Askarinam, Joshua Chiu-Wing Tsui, David W. Groechel, Raymond Hung
  • Patent number: 6545420
    Abstract: A domed plasma reactor chamber uses an antenna driven by RF energy (LF, MF, or VHF) which is inductively coupled inside the reactor dome. The antenna generates a high density, low energy plasma inside the chamber for etching metals, dielectrics and semiconductor materials. Auxiliary RF bias energy applied to the wafer support cathode controls the cathode sheath voltage and controls the ion energy independent of density. Various magnetic and voltage processing enhancement techniques are disclosed, along with etch processes, deposition processes and combined etch/deposition processed. The disclosed invention provides processing of sensitive devices without damage and without microloading, thus providing increased yields.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: April 8, 2003
    Assignee: Applied Materials, Inc.
    Inventors: Kenneth S. Collins, Craig A. Roderick, John R. Trow, Chan-Lon Yang, Jerry Yuen-Kui Wong, Jeffrey Marks, Peter R. Keswick, David W. Groechel, Jay D. Pinson, II, Tetsuya Ishikawa, Lawrence Chang-Lai Lei, Masato M. Toshima
  • Patent number: 6518195
    Abstract: A domed plasma reactor chamber uses an antenna driven by RF energy (LF, MF, or VHF) which is inductively coupled inside the reactor dome. The antenna generates a high density, low energy plasma inside the chamber for etching metals, dielectrics and semiconductor materials. Auxiliary RF bias energy applied to the 10 wafer support cathode controls the cathode sheath voltage and controls the ion energy independent of density. Various magnetic and voltage processing enhancement techniques are disclosed, along with etch processes deposition processes and combined etch/deposition processed. The disclosed invention provides processing of sensitive devices without damage and without microloading, thus providing increased yields.
    Type: Grant
    Filed: February 15, 2000
    Date of Patent: February 11, 2003
    Assignee: Applied Materials, Inc.
    Inventors: Kenneth S. Collins, Chan-Lon Yang, Jerry Yuen-Kui Wong, Jeffrey Marks, Peter R. Keswick, David W. Groechel, Craig A. Roderick, John R. Trow, Tetsuya Ishikawa, Jay D. Pinson, II, Lawrence Chang-Lai Lei, Masato M. Toshima, Gerald Zheyao Yin
  • Patent number: 6488807
    Abstract: The invention is embodied in an RF plasma reactor for processing a semiconductor workpiece, including wall structures for containing a plasma therein, a workpiece support, a coil antenna capable of receiving a source RF power signal and being juxtaposed near the chamber, the workpiece support including a bias electrode capable of receiving a bias RF power signal, and first and second magnet structures adjacent the wall structure and in spaced relationship, with one pole of the first magnet structure facing an opposite pole of the second magnet structure, the magnet structures providing a plasma-confining static magnetic field adjacent said wall structure.
    Type: Grant
    Filed: May 3, 2000
    Date of Patent: December 3, 2002
    Assignee: Applied Materials, Inc.
    Inventors: Kenneth S. Collins, Chan-Lon Yang, Jerry Yuen-Kui Wong, Jeffrey Marks, Peter R. Keswick, David W. Groechel, Craig A. Roderick, John R. Trow, Tetsuya Ishikawa, Jay D. Pinson, II, Lawrence Chang-Lai Lei, Masato M. Toshima, Gerald Zheyao Yin
  • Patent number: 6468136
    Abstract: Tungsten CMP is conducted with improved alignment mark integrity and reduced edge residue by employing a retaining ring having a mechanical hardness greater than about 85 durometer and a relatively soft polishing pad. Embodiments of the present invention include conducting CMP employing a carrier comprising a retaining ring additionally having a wear rate during CMP of less than about 1 mil per hour and a polishing pad having a hardness less than about 60 durometer. Suitable retaining ring materials include ceramics, quartz, polymers and fiber reinforced polymers.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: October 22, 2002
    Assignee: Applied Materials, Inc.
    Inventors: Robert T. Lum, David W. Groechel, Li Wu, Chiu Chan
  • Patent number: 6444137
    Abstract: A plasma reactor chamber uses an antenna driven by RF energy (LF, MF, or VHF) which is inductively coupled inside the reactor dome. The antenna generates a high density, low energy plasma inside the chamber for etching oxygen-containing layers overlying non-oxygen-containing layers with high selectivity. Auxiliary RF bias energy applied to the wafer support cathode controls the cathode sheath voltage and controls the ion energy independent of density. Various magnetic and voltage processing enhancement techniques are disclosed, along with other etch processes, deposition processes and combined etch/deposition processes. The disclosed invention provides processing of sensitive devices without damage and without microloading, thus providing increased yields. Etching of an oxygen-containing layer overlying a non-oxygen-containing layer can be achieved with high selectivity.
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: September 3, 2002
    Assignee: Applied Materials, Inc.
    Inventors: Kenneth S. Collins, Chan-Lon Yang, Jerry Yuen-Kui Wong, Jeffrey Marks, Peter R. Keswick, David W. Groechel
  • Patent number: 6440866
    Abstract: A general method of the invention is to provide a polymer-hardening precursor piece (such as silicon, carbon, silicon carbide or silicon nitride, but preferably silicon) within the reactor chamber during an etch process with a fluoro-carbon or fluoro-hydrocarbon gas, and to heat the polymer-hardening precursor piece above the polymerization temperature sufficiently to achieve a desired increase in oxide-to-silicon etch selectivity. Generally, this polymer-hardening precursor or silicon piece may be an integral part of the reactor chamber walls and/or ceiling or a separate, expendable and quickly removable piece, and the heating/cooling apparatus may be of any suitable type including apparatus which conductively or remotely heats the silicon piece.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: August 27, 2002
    Assignee: Applied Materials, Inc.
    Inventors: Kenneth S. Collins, Michael Rice, David W. Groechel, Gerald Zheyao Yin, Jon Mohn, Craig A. Roderick, Douglas Buchberger, Chan-Lon Yang, Yuen-Kui Wong, Jeffrey Marks, Peter Keswick
  • Patent number: 6399514
    Abstract: A plasma process for etching oxide and having a high selectivity to silicon including flowing into a plasma reaction chamber a fluorine-containing etching gas and maintaining a temperature of an exposed silicon surface within said chamber at a temperature of between 200° C. and 300° C. An example of the etching gas includes SiF4 and a fluorocarbon gas. The plasma may be generated by a capacitive discharge type plasma generator or by an electromagnetically coupled plasma generator, such as an inductively coupled plasma generator. The high selectivity exhibited by the etch process permits use of an electromagnetically coupled plasma generator, which in turn permits the etch process to be performed at low pressures of between 1 and 30 milliTorr, resulting the etching of vertical sidewalls in the oxide layer.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: June 4, 2002
    Assignee: Applied Materials, Inc.
    Inventors: Jeffrey Marks, Jerry Yuen-Kui Wong, David W. Groechel, Peter R. Keswick, Chan-Lon Yang
  • Publication number: 20020004309
    Abstract: A domed plasma reactor chamber uses an antenna driven by RF energy (LF, MF, or VHF) which is inductively coupled inside the reactor dome. The antenna generates a high density, low energy plasma inside the chamber for etching metals, dielectrics and semiconductor materials. Auxiliary RF bias energy applied to the wafer support cathode controls the cathode sheath voltage and controls the ion energy independent of density. Various magnetic and voltage processing enhancement techniques are disclosed, along with etch processes, deposition processes and combined etch/deposition processed. The disclosed invention provides processing of sensitive devices without damage and without microloading, thus providing increased yields.
    Type: Application
    Filed: June 9, 1999
    Publication date: January 10, 2002
    Inventors: KENNETH S. COLLINS, CRAIG A. RODERICK, JOHN R. TROW, CHAN-LON YANG, JERRY YUEN-KUI WONG, JEFFREY MARKS, PETER R. KESWICK, DAVID W. GROECHEL, JAY D. PINSON, TETSUYA ISHIKAWA, LAWRENCE CHANG-LAI LEI, MASATO M. TOSHIMA
  • Patent number: 6251792
    Abstract: A domed plasma reactor chamber uses an antenna driven by RF energy (LF, MF, or VHF) which is inductively coupled inside the reactor dome. The antenna generates a high density, low energy plasma inside the chamber for etching metals, dielectrics and semiconductor materials. Auxiliary RF bias energy applied to the wafer support cathode controls the cathode sheath voltage and controls the ion energy independent of density. Various magnetic and voltage processing enhancement techniques are disclosed, along with etch processes, deposition processes and combined etch/deposition processed. The disclosed invention provides processing of sensitive devices without damage and without microloading, thus providing increased yields.
    Type: Grant
    Filed: October 10, 1997
    Date of Patent: June 26, 2001
    Assignee: Applied Materials, Inc.
    Inventors: Kenneth S. Collins, Craig A. Roderick, John R. Trow, Chan-Lon Yang, Jerry Yuen-Kui Wong, Jeffrey Marks, Peter R. Keswick, David W. Groechel, Jay D. Pinson, II, Tetsuya Ishikawa, Lawrence Chang-Lai Lei, Masato M. Toshima, Gerald Zheyao Yin
  • Patent number: 6218312
    Abstract: A general method of the invention is to provide a polymer-hardening precursor piece (such as silicon, carbon, silicon carbide or silicon nitride, but preferably silicon) within the reactor chamber during an etch process with a fluoro-carbon or fluoro-hydrocarbon gas, and to heat the polymer-hardening precursor piece above the polymerization temperature sufficiently to achieve a desired increase in oxide-to-silicon etch selectivity. Generally, this polymer-hardening precursor or silicon piece may be an integral part of the reactor chamber walls and/or ceiling or a separate, expendable and quickly removable piece, and the heating/cooling apparatus may be of any suitable type including apparatus which conductively or remotely heats the silicon piece.
    Type: Grant
    Filed: October 8, 1998
    Date of Patent: April 17, 2001
    Assignee: Applied Materials Inc.
    Inventors: Kenneth S. Collins, Michael Rice, David W. Groechel, Gerald Zheyao Yin, Jon Mohn, Craig A. Roderick, Douglas Buchberger, Chan-Lon Yang, Yuen-Kui Wong, Jeffrey Marks, Peter Keswick
  • Patent number: 6171974
    Abstract: A plasma etch process for oxide having high selectivity to silicon is disclosed comprising the use of a mixture of SiF4 and one or more other fluorine-containing etch gases in an etch chamber maintained within a pressure range of from about 1 milliTorr to about 200 milliTorr. Preferably, the etch chamber also contains an exposed silicon surface. The plasma may be generated by a capacitive discharge type plasma generator, if pressures of at least about 50 milliTorr are used, but preferably the plasma is generated by an electromagnetically coupled plasma generator. The high selectivity exhibited by the etch process of the invention permits use of an electromagnetically coupled plasma generator which, in turn, permits operation of the etch process at reduced pressures of preferably from about 1 milliTorr to about 30 milliTorr resulting in the etching of vertical sidewall openings in the oxide layer.
    Type: Grant
    Filed: January 24, 1992
    Date of Patent: January 9, 2001
    Assignee: Applied Materials, Inc.
    Inventors: Jeffrey Marks, Jerry Yuen-Kui Wong, David W. Groechel, Peter R. Keswick, Chan-Lon Yang
  • Patent number: 6083412
    Abstract: The invention is embodied in a method of operating a plasma etch reactor, consisting of introducing a gas into the reactor which disassociates as a plasma into an etch species which etches oxide films on a work piece in the reactor and a non-etching species combinable with the etch species into an etch-preventing polymer condensable onto the work piece below a characteristic deposition temperature, providing an interior wall comprising a material which scavenges the etching species, and maintaining a temperature of the interior wall above the deposition temperature.
    Type: Grant
    Filed: January 7, 1998
    Date of Patent: July 4, 2000
    Assignee: Applied Materials, Inc.
    Inventors: Michael Rice, Jeffrey Marks, David W Groechel, Nicolas J Bright