Patents by Inventor Karl Leeser

Karl Leeser 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: 9236244
    Abstract: Disclosed herein are methods of depositing layers of material on multiple semiconductor substrates at multiple processing stations within one or more reaction chambers. The methods may include dosing a first substrate with film precursor at a first processing station and dosing a second substrate with film precursor at a second processing station with precursor flowing from a common source, wherein the timing of said dosing is staggered such that the first substrate is dosed during a first dosing phase during which the second substrate is not substantially dosed, and the second substrate is dosed during a second dosing phase during which the first substrate is not substantially dosed. Also disclosed herein are apparatuses having a plurality of processing stations contained within one or more reaction chambers and a controller with machine-readable instructions for staggering the dosing of first and second substrates at first and second processing stations.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: January 12, 2016
    Assignee: Lam Research Corporation
    Inventors: Ramesh Chandrasekharan, Adrien LaVoie, Damien Slevin, Karl Leeser
  • Publication number: 20150368797
    Abstract: A method for processing a substrate in a substrate processing system includes flowing reactant gases into a process chamber including a substrate, supplying a first power level sufficient to promote rearrangement of molecules on a surface of the substrate, waiting a first predetermined period, and, after the first predetermined period, performing plasma-enhanced, pulsed chemical vapor deposition of film on the substrate by supplying one or more precursors while supplying a second power level for a second predetermined period. The second power level is greater than the first power level. The method further includes removing reactants from the process chamber.
    Type: Application
    Filed: August 27, 2015
    Publication date: December 24, 2015
    Inventors: Adrien LaVoie, Hu Kang, Karl Leeser
  • Patent number: 9162209
    Abstract: A substrate processing system includes one or more processing chambers defining N reaction volumes. N-1 first valves are arranged between the N reaction volumes. A controller communicates with the N-1 first valves and is configured to pressurize a first one of the N reaction volumes with precursor gas to a first target pressure, wait a first predetermined soak period, evacuate a second one of the N reaction volumes to a second target pressure that is lower than the first target pressure, and open one of the N-1 first valves between the first one of the N reaction volumes and a second one of the N reaction volumes.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: October 20, 2015
    Assignee: Novellus Systems, Inc.
    Inventor: Karl Leeser
  • Patent number: 9145607
    Abstract: A method includes flowing reactant gases into a process chamber. Plasma having a first power level is supplied using a plasma source. The process chamber is dosed with the precursor. The first power level is sufficient to enhance adsorption of the precursor on a surface of the substrate and is insufficient to decompose the precursor that is adsorbed. After a first predetermined period, the method includes removing a portion of the precursor that does not adsorb onto the substrate. The precursor that is adsorbed is activated using plasma having a second power level using the plasma source. The second power level is greater than the first power level and is sufficient to decompose the precursor.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: September 29, 2015
    Assignee: LAM RESEARCH CORPORATION
    Inventors: Adrien LaVoie, Hu Kang, Karl Leeser
  • Publication number: 20150240360
    Abstract: A substrate processing tool includes N substrate processing stations arranged in a first transfer plane around a central cavity, where N is an integer greater than one. At least one of the N substrate processing stations is configured to process the substrate. M substrate processing stations are arranged in a second transfer plane around the central cavity, where M is an integer greater than one. The second transfer plane is arranged parallel to and above the first transfer plane. An upper tool portion includes the M substrate processing stations and a first portion of the N substrate processing stations. A rotatable lower tool portion rotates relative to the upper tool portion. A second portion of the N substrate processing stations rotates with the rotatable lower tool portion.
    Type: Application
    Filed: February 23, 2015
    Publication date: August 27, 2015
    Inventor: Karl Leeser
  • Publication number: 20150110968
    Abstract: A method includes flowing reactant gases into a process chamber. Plasma having a first power level is supplied using a plasma source. The process chamber is dosed with the precursor. The first power level is sufficient to enhance adsorption of the precursor on a surface of the substrate and is insufficient to decompose the precursor that is adsorbed. After a first predetermined period, the method includes removing a portion of the precursor that does not adsorb onto the substrate. The precursor that is adsorbed is activated using plasma having a second power level using the plasma source. The second power level is greater than the first power level and is sufficient to decompose the precursor.
    Type: Application
    Filed: October 22, 2013
    Publication date: April 23, 2015
    Applicant: Lam Research Corporation
    Inventors: Adrien LaVoie, Hu Kang, Karl Leeser
  • Publication number: 20150099372
    Abstract: Disclosed herein are methods of depositing layers of material on multiple semiconductor substrates at multiple processing stations within one or more reaction chambers. The methods may include dosing a first substrate with film precursor at a first processing station and dosing a second substrate with film precursor at a second processing station with precursor flowing from a common source, wherein the timing of said dosing is staggered such that the first substrate is dosed during a first dosing phase during which the second substrate is not substantially dosed, and the second substrate is dosed during a second dosing phase during which the first substrate is not substantially dosed. Also disclosed herein are apparatuses having a plurality of processing stations contained within one or more reaction chambers and a controller with machine-readable instructions for staggering the dosing of first and second substrates at first and second processing stations.
    Type: Application
    Filed: December 15, 2014
    Publication date: April 9, 2015
    Inventors: Ramesh Chandrasekharan, Adrien LaVoie, Damien Slevin, Karl Leeser
  • Patent number: 8940646
    Abstract: Disclosed herein are methods of depositing layers of material on multiple semiconductor substrates at multiple processing stations within one or more reaction chambers. The methods may include dosing a first substrate with film precursor at a first processing station and dosing a second substrate with film precursor at a second processing station with precursor flowing from a common source, wherein the timing of said dosing is staggered such that the first substrate is dosed during a first dosing phase during which the second substrate is not substantially dosed, and the second substrate is dosed during a second dosing phase during which the first substrate is not substantially dosed. Also disclosed herein are apparatuses having a plurality of processing stations contained within one or more reaction chambers and a controller with machine-readable instructions for staggering the dosing of first and second substrates at first and second processing stations.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: January 27, 2015
    Assignee: Lam Research Corporation
    Inventors: Ramesh Chandrasekharan, Adrien Lavoie, Damien Slevin, Karl Leeser
  • Publication number: 20150017812
    Abstract: Disclosed herein are methods of depositing layers of material on multiple semiconductor substrates at multiple processing stations within one or more reaction chambers. The methods may include dosing a first substrate with film precursor at a first processing station and dosing a second substrate with film precursor at a second processing station with precursor flowing from a common source, wherein the timing of said dosing is staggered such that the first substrate is dosed during a first dosing phase during which the second substrate is not substantially dosed, and the second substrate is dosed during a second dosing phase during which the first substrate is not substantially dosed. Also disclosed herein are apparatuses having a plurality of processing stations contained within one or more reaction chambers and a controller with machine-readable instructions for staggering the dosing of first and second substrates at first and second processing stations.
    Type: Application
    Filed: December 18, 2013
    Publication date: January 15, 2015
    Inventors: Ramesh Chandrasekharan, Adrien Lavoie, Damien Slevin, Karl Leeser
  • Publication number: 20150011095
    Abstract: A chemical deposition apparatus having conductance control, which includes a showerhead module having a faceplate and a backing plate, the showerhead module including a plurality of inlets which deliver reactor chemistries to a cavity and exhaust outlets which remove reactor chemistries, a pedestal module configured to support a substrate and which moves vertically to close the cavity between the pedestal module and an outer portion of the faceplate, and at least one conductance control assembly, which is in fluid communication with the cavity via the exhaust outlets. The at least one conductance control assembly selected from one or more of the following: a ball valve assembly, a fluidic valve, magnetically coupled rotary plates, and/or a linear based magnetic system.
    Type: Application
    Filed: July 3, 2013
    Publication date: January 8, 2015
    Inventors: Ramesh Chandrasekharan, Karl Leeser, Chunguang Xia, Jeremy Tucker
  • Publication number: 20150011096
    Abstract: A deposition apparatus for processing semiconductor substrates having an isothermal processing zone comprises a chemical isolation chamber in which semiconductor substrates are processed. A process gas source is in fluid communication with a showerhead module which delivers process gases from the process gas source to the isothermal processing zone wherein the showerhead module includes a faceplate wherein a lower surface of the faceplate forms an upper wall of a cavity defining the isothermal processing zone, a backing plate, and an isolation ring which surrounds the faceplate and the backing plate. At least one compression seal is compressed between the faceplate and the backing plate which forms a central gas plenum between the faceplate and the backing plate. A substrate pedestal module is configured to heat and support a semiconductor substrate wherein an upper surface of the pedestal module forms a lower wall of the cavity defining the isothermal processing zone within the chemical isolation chamber.
    Type: Application
    Filed: July 3, 2013
    Publication date: January 8, 2015
    Inventors: Ramesh Chandrasekharan, Jeremy Tucker, Karl Leeser, Alan Schoepp
  • Patent number: 8906791
    Abstract: Methods, apparatus, and systems for depositing materials with gaseous precursors are provided. In certain implementations, the methods involve providing a wafer substrate to a chamber of an apparatus. The apparatus includes a showerhead to deliver a gas to the chamber, a volume, and an isolation valve between the volume and the showerhead. A gas is delivered the volume when the isolation valve is closed, pressurizing the volume. The isolation valve is opened to allow the gas to flow to the showerhead when the gas is being delivered to the volume. A material is formed on the wafer substrate using the gas. In some implementations, releasing the pressurized gas from the volume reduces the duration of time to develop a spatially uniform gas flow across the showerhead.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: December 9, 2014
    Assignee: Novellus Systems, Inc.
    Inventors: Kie-Jin Park, Karl Leeser, Frank Greer, David Cohen
  • Publication number: 20140238608
    Abstract: A showerhead assembly for a substrate processing system includes a back plate connected to a gas channel. A face plate is connected adjacent to a first surface of the back plate and includes a gas diffusion surface. An electrode is arranged in one of the back plate and the face plate and is connected to one or more conductors. A gas plenum is defined between the back plate and the face plate and is in fluid communication with the gas channel. The back plate and the face plate are made of a non-metallic material.
    Type: Application
    Filed: April 8, 2013
    Publication date: August 28, 2014
    Applicant: Novellus Systems, Inc.
    Inventors: Mohamed Sabri, Edward Augustyniak, Douglas L. Keil, Ramkishan Rao Lingampalli, Karl Leeser, Cody Barnett
  • Publication number: 20140030444
    Abstract: Methods and apparatus for depositing a film on a substrate surface including plasma assisted surface mediated reactions in which a film is grown over one or more cycles of reactant adsorption and reaction are provided. The embodiments disclosed herein relate to methods and apparatus for performing conformal film deposition and atomic layer deposition reactions that result in highly uniform films with low particle contamination. According to various embodiments, the methods and apparatus involve high deposition chamber pressures and plasma generation using high radio frequency powers.
    Type: Application
    Filed: July 29, 2013
    Publication date: January 30, 2014
    Applicant: Novellus Systems, Inc.
    Inventors: Shankar Swaminathan, Frank Pasquale, Adrien Lavoie, Karl Leeser
  • Publication number: 20130344245
    Abstract: A substrate processing system includes a showerhead that comprises a base portion and a stem portion and that delivers precursor gas to a chamber. A collar connects the showerhead to an upper surface of the chamber. The collar includes a plurality of slots, is arranged around the stem portion of the showerhead, and directs purge gas through the plurality of slots into a region between the base portion of the showerhead and the upper surface of the chamber.
    Type: Application
    Filed: October 24, 2012
    Publication date: December 26, 2013
    Applicant: NOVELLUS SYSTEMS, INC.
    Inventors: CHUNGUANG XIA, RAMESH CHANDRASEKHARAN, DOUGLAS KEIL, EDWARD J. AUGUSTYNIAK, KARL LEESER
  • Publication number: 20130269609
    Abstract: A reactor for processing a plurality of substrates includes P processing station assemblies arranged symmetrically around an axis, where P is an integer greater than one. A pedestal carousel assembly includes P pedestal assemblies arranged symmetrically around the axis, each of the P pedestal assemblies including a pedestal. A rotational actuator rotates the pedestal carousel assembly relative to the axis to selectively index the P pedestal assemblies with the P processing station assemblies. Each of the P processing station assemblies processes substrates arranged on corresponding ones of the P pedestal assemblies at the same time.
    Type: Application
    Filed: April 13, 2013
    Publication date: October 17, 2013
    Applicant: Novellus Systems, Inc.
    Inventor: Karl Leeser
  • Publication number: 20130228225
    Abstract: A substrate processing system includes one or more processing chambers defining N reaction volumes. N-1 first valves are arranged between the N reaction volumes. A controller communicates with the N-1 first valves and is configured to pressurize a first one of the N reaction volumes with precursor gas to a first target pressure, wait a first predetermined soak period, evacuate a second one of the N reaction volumes to a second target pressure that is lower than the first target pressure, and open one of the N-1 first valves between the first one of the N reaction volumes and a second one of the N reaction volumes.
    Type: Application
    Filed: February 27, 2013
    Publication date: September 5, 2013
    Applicant: Novellus Systems, Inc.
    Inventor: Karl Leeser
  • Publication number: 20130206725
    Abstract: Disclosed are methods and associated apparatus for depositing layers of material on a substrate (e.g., a semiconductor substrate) using ionized physical vapor deposition (iPVD). Also disclosed are methods and associated apparatus for plasma etching (e.g., resputtering) layers of material on a semiconductor substrate.
    Type: Application
    Filed: March 16, 2010
    Publication date: August 15, 2013
    Inventors: Karl Leeser, Ishtak Karim, Alexandre de Chambrier, Liqi Wu, Chunming Zhou
  • Publication number: 20130092086
    Abstract: A system for reducing parasitic plasma in a semiconductor process comprises a first surface and a plurality of dielectric layers that are arranged between an electrode and the first surface. The first surface and the electrode have substantially different electrical potentials. The plurality of dielectric layers defines a first gap between the electrode and one of the plurality of dielectric layers, a second gap between adjacent ones of the plurality of dielectric layers, and a third gap between a last one of the plurality of dielectric layers and the first surface. A number of the plurality of dielectric layers and sizes of the first gap, the second gap and the third gap are selected to prevent parasitic plasma between the first surface and the electrode during the semiconductor process.
    Type: Application
    Filed: November 23, 2011
    Publication date: April 18, 2013
    Applicant: Novellus Systems, Inc.
    Inventors: Douglas Keil, Edward Augustyniak, Karl Leeser, Mohamed Sabri
  • Patent number: 8343318
    Abstract: A physical vapor deposition (PVD) system includes a chamber and a plurality of electromagnetic coils arranged around the chamber. First and second annular bands of permanent magnets are arranged around the chamber with poles oriented perpendicular to a magnetic field imposed by the electromagnetic coils. Each of the permanent magnets in the first annular band is arranged with poles having a first polarity closest to a central axis of the chamber. Each of the permanent magnets in the second annular band is arranged anti-parallel with respect to the permanent magnets in the first annular band.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: January 1, 2013
    Assignee: Novellus Systems Inc.
    Inventors: Karl Leeser, Ishtak Karim, Alexander Dulkin