Patents by Inventor Dennis Hausmann

Dennis Hausmann 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: 10662526
    Abstract: A method is provided, including the following operations: simultaneously applying an organosilyl chloride inhibitor and a Lewis base to a surface of a substrate, the organosilyl chloride inhibitor being configured to adsorb onto dielectric regions of the surface of the substrate; performing a plurality of cycles of an ALD process to deposit a metal oxide onto the surface of the substrate; wherein the applying of the organosilyl chloride inhibitor and the Lewis base prevents the ALD process from depositing the metal oxide onto the dielectric regions of the surface of the substrate.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: May 26, 2020
    Assignee: Lam Research Corporation
    Inventors: Dennis Hausmann, Alexander R. Fox, Paul C. Lemaire, David Charles Smith
  • Patent number: 10643889
    Abstract: A method of improving selectivity of a metal in a selective deposition process. A pre-treatment process for the metal modifies the metal surface, and includes first reducing the metal to remove organic contamination from the metal followed by oxidation of the metal to allow a monolayer of a metal oxide to grow on the surface. This modification of the metal allows inhibitor molecules to adsorb on the metal oxide monolayer to improve selectivity.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: May 5, 2020
    Assignee: Lam Rasearch Corporation
    Inventors: Dennis Hausmann, Elham Mohimi, Pengyi Zhang, Paul C. Lemaire, Kashish Sharma, Alexander R. Fox, Nagraj Shankar, Kapu Sirish Reddy, David Charles Smith
  • Publication number: 20200102650
    Abstract: A method is provided, including the following operations: simultaneously applying an organosilyl chloride inhibitor and a Lewis base to a surface of a substrate, the organosilyl chloride inhibitor being configured to adsorb onto dielectric regions of the surface of the substrate; performing a plurality of cycles of an ALD process to deposit a metal oxide onto the surface of the substrate; wherein the applying of the organosilyl chloride inhibitor and the Lewis base prevents the ALD process from depositing the metal oxide onto the dielectric regions of the surface of the substrate.
    Type: Application
    Filed: October 2, 2018
    Publication date: April 2, 2020
    Inventors: Dennis Hausmann, Alexander R. Fox, Paul C. Lemaire, David Charles Smith
  • Publication number: 20200043776
    Abstract: A method of improving selectivity of a metal in a selective deposition process. A pre-treatment process for the metal modifies the metal surface, and includes first reducing the metal to remove organic contamination from the metal followed by oxidation of the metal to allow a monolayer of a metal oxide to grow on the surface. This modification of the metal allows inhibitor molecules to adsorb on the metal oxide monolayer to improve selectivity.
    Type: Application
    Filed: August 6, 2018
    Publication date: February 6, 2020
    Inventors: Dennis HAUSMANN, Elham MOHIMI, Pengyi ZHANG, Paul C. LEMAIRE, Kashish SHARMA, Alexander R. FOX, Nagraj SHANKAR, Kapu Sirish REDDY, David Charles SMITH
  • Publication number: 20200040454
    Abstract: A method of increasing the deposition rate of an atomic layer deposition (ALD) process by co-flowing a volatile base with metal organic, a metal halide, or metal hybride precursor. The base does not react with the precursor with which it is flowed such that the base generates no measurable film on the substrate or particles in the processing chamber during the flow time. The addition of the base catalyst increases the rate of adsorption of the precursor with which it is flowed.
    Type: Application
    Filed: August 6, 2018
    Publication date: February 6, 2020
    Inventors: Dennis HAUSMANN, Alexander R. FOX, Colleen LAWLOR
  • Patent number: 10361076
    Abstract: Provided herein are methods and apparatus for filling one or more gaps on a semiconductor substrate. The disclosed embodiments are especially useful for forming seam-free, void-free fill in both narrow and wide features. The methods may be performed without any intervening etching operations to achieve a single step deposition. In various implementations, a first operation is performed using a novel PEALD fill mechanism to fill narrow gaps and line wide gaps. A second operation may be performed using PECVD methods to continue filling the wide gaps.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: July 23, 2019
    Assignee: Lam Research Corporation
    Inventors: Hu Kang, Shankar Swaminathan, Jun Qian, Wanki Kim, Dennis Hausmann, Bart J. van Schravendijk, Adrien LaVoie
  • Patent number: 10043655
    Abstract: Methods of depositing a film on a substrate surface include surface mediated reactions in which a film is grown over one or more cycles of reactant adsorption and reaction. In one aspect, the method is characterized by intermittent delivery of dopant species to the film between the cycles of adsorption and reaction.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: August 7, 2018
    Assignee: Novellus Systems, Inc.
    Inventors: Shankar Swaminathan, Jon Henri, Dennis Hausmann, Pramod Subramonium, Mandyam Sriram, Vishwanathan Rangarajan, Kirthi Kattige, Bart van Schravendijk, Andrew J. McKerrow
  • Patent number: 9905414
    Abstract: Metal silicates or phosphates are deposited on a heated substrate by the reaction of vapors of alkoxysilanols or alkylphosphates along with reactive metal amides, alkyls or alkoxides. For example, vapors of tris(tert-butoxy)silanol react with vapors of tetrakis(ethylmethylamido) hafnium to deposit hafnium silicate on surfaces heated to 300° C. The product film has a very uniform stoichiometry throughout the reactor. Similarly, vapors of diisopropylphosphate react with vapors of lithium bis(ethyldimethylsilyl)amide to deposit lithium phosphate films on substrates heated to 250° C. Supplying the vapors in alternating pulses produces these same compositions with a very uniform distribution of thickness and excellent step coverage.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: February 27, 2018
    Assignee: President and Fellows of Harvard College
    Inventors: Roy Gerald Gordon, Jill S. Becker, Dennis Hausmann, Seigi Suh
  • Publication number: 20170323786
    Abstract: Provided herein are methods and apparatus for filling one or more gaps on a semiconductor substrate. The disclosed embodiments are especially useful for forming seam-free, void-free fill in both narrow and wide features. The methods may be performed without any intervening etching operations to achieve a single step deposition. In various implementations, a first operation is performed using a novel PEALD fill mechanism to fill narrow gaps and line wide gaps. A second operation may be performed using PECVD methods to continue filling the wide gaps.
    Type: Application
    Filed: July 19, 2017
    Publication date: November 9, 2017
    Inventors: Hu Kang, Shankar Swaminathan, Jun Qian, Wanki Kim, Dennis Hausmann, Bart J. van Schravendijk, Adrien LaVoie
  • Patent number: 9793110
    Abstract: Provided herein are methods and apparatus for filling one or more gaps on a semiconductor substrate. The disclosed embodiments are especially useful for forming seam-free, void-free fill in both narrow and wide features. The methods may be performed without any intervening etching operations to achieve a single step deposition. In various implementations, a first operation is performed using a novel PEALD fill mechanism to fill narrow gaps and line wide gaps. A second operation may be performed using PECVD methods to continue filling the wide gaps.
    Type: Grant
    Filed: January 4, 2016
    Date of Patent: October 17, 2017
    Assignee: Lam Research Corporation
    Inventors: Hu Kang, Shankar Swaminathan, Jun Qian, Wanki Kim, Dennis Hausmann, Bart J. van Schravendijk, Adrien LaVoie
  • Patent number: 9670579
    Abstract: Described are methods of making silicon nitride (SiN) materials on substrates. Improved SiN films made by the methods are also included. One aspect relates to depositing chlorine (Cl)-free conformal SiN films. In some embodiments, the SiN films are Cl-free and carbon (C)-free. Another aspect relates to methods of tuning the stress and/or wet etch rate of conformal SiN films. Another aspect relates to low-temperature methods of depositing high quality conformal SiN films. In some embodiments, the methods involve using trisilylamine (TSA) as a silicon-containing precursor.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: June 6, 2017
    Assignee: Novellus Systems, Inc.
    Inventors: Dennis Hausmann, Jon Henri, Bart van Schravendijk, Easwar Srinivasan
  • Publication number: 20170148628
    Abstract: Methods of depositing a film on a substrate surface include surface mediated reactions in which a film is grown over one or more cycles of reactant adsorption and reaction. In one aspect, the method is characterized by intermittent delivery of dopant species to the film between the cycles of adsorption and reaction.
    Type: Application
    Filed: February 7, 2017
    Publication date: May 25, 2017
    Inventors: Shankar Swaminathan, Jon Henri, Dennis Hausmann, Pramod Subramonium, Mandyam Sriram, Vishwanathan Rangarajan, Kirthi Kattige, Bart van Schravendijk, Andrew J. McKerrow
  • Patent number: 9570274
    Abstract: Methods of depositing a film on a substrate surface include surface mediated reactions in which a film is grown over one or more cycles of reactant adsorption and reaction. In one aspect, the method is characterized by intermittent delivery of dopant species to the film between the cycles of adsorption and reaction.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: February 14, 2017
    Assignee: Novellus Systems, Inc.
    Inventors: Shankar Swaminathan, Jon Henri, Dennis Hausmann, Pramod Subramonium, Mandyam Sriram, Vishwanathan Rangarajan, Kirthi Kattige, Bart van Schravendijk, Andrew J. McKerrow
  • Publication number: 20160268121
    Abstract: Metal silicates or phosphates are deposited on a heated substrate by the reaction of vapors of alkoxysilanols or alkylphosphates along with reactive metal amides, alkyls or alkoxides. For example, vapors of tris(tert-butoxy)silanol react with vapors of tetrakis(ethylmethylamido) hafnium to deposit hafnium silicate on surfaces heated to 300° C. The product film has a very uniform stoichiometry throughout the reactor. Similarly, vapors of diisopropylphosphate react with vapors of lithium bis(ethyldimethylsilyl)amide to deposit lithium phosphate films on substrates heated to 250° C. Supplying the vapors in alternating pulses produces these same compositions with a very uniform distribution of thickness and excellent step coverage.
    Type: Application
    Filed: May 23, 2016
    Publication date: September 15, 2016
    Inventors: Roy Gerald GORDON, Jill S. BECKER, Dennis HAUSMANN, Seigi SUH
  • Publication number: 20160118246
    Abstract: Provided herein are methods and apparatus for filling one or more gaps on a semiconductor substrate. The disclosed embodiments are especially useful for forming seam-free, void-free fill in both narrow and wide features. The methods may be performed without any intervening etching operations to achieve a single step deposition. In various implementations, a first operation is performed using a novel PEALD fill mechanism to fill narrow gaps and line wide gaps. A second operation may be performed using PECVD methods to continue filling the wide gaps.
    Type: Application
    Filed: January 4, 2016
    Publication date: April 28, 2016
    Inventors: Hu Kang, Shankar Swaminathan, Jun Qian, Wanki Kim, Dennis Hausmann, Bart J. van Schravendijk, Adrien LaVoie
  • Publication number: 20160111276
    Abstract: Metal silicates or phosphates are deposited on a heated substrate by the reaction of vapors of alkoxysilanols or alkylphosphates along with reactive metal amides, alkyls or alkoxides. For example, vapors of tris(tert-butoxy)silanol react with vapors of tetrakis(ethylmethylamido)hafnium to deposit hafnium silicate on surfaces heated to 300° C. The product film has a very uniform stoichiometry throughout the reactor. Similarly, vapors of diisopropylphosphate react with vapors of lithium bis(ethyldimethylsilyl)amide to deposit lithium phosphate films on substrates heated to 250° C. Supplying the vapors in alternating pulses produces these same compositions with a very uniform distribution of thickness and excellent step coverage.
    Type: Application
    Filed: December 18, 2015
    Publication date: April 21, 2016
    Inventors: Roy Gerald GORDON, Jill S. BECKER, Dennis HAUSMANN, Seigi SUH
  • Publication number: 20160087066
    Abstract: Metal silicates or phosphates are deposited on a heated substrate by the reaction of vapors of alkoxysilanols or alkylphosphates along with reactive metal amides, alkyls or alkoxides. For example, vapors of tris(tert-butoxy)silanol react with vapors of tetrakis(ethylmethylamido)hafnium to deposit hafnium silicate on surfaces heated to 300° C. The product film has a very uniform stoichiometry throughout the reactor. Similarly, vapors of diisopropylphosphate react with vapors of lithium bis(ethyldimethylsilyl)amide to deposit lithium phosphate films on substrates heated to 250° C. Supplying the vapors in alternating pulses produces these same compositions with a very uniform distribution of thickness and excellent step coverage.
    Type: Application
    Filed: December 4, 2015
    Publication date: March 24, 2016
    Inventors: Roy Gerald GORDON, Jill S. BECKER, Dennis HAUSMANN, Seigi SUH
  • Patent number: 9257274
    Abstract: Provided herein are methods and apparatus for filling one or more gaps on a semiconductor substrate. The disclosed embodiments are especially useful for forming seam-free, void-free fill in both narrow and wide features. The methods may be performed without any intervening etching operations to achieve a single step deposition. In various implementations, a first operation is performed using a novel PEALD fill mechanism to fill narrow gaps and line wide gaps. A second operation may be performed using PECVD methods to continue filling the wide gaps.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: February 9, 2016
    Assignee: Lam Research Corporation
    Inventors: Hu Kang, Shankar Swaminathan, Jun Qian, Wanki Kim, Dennis Hausmann, Bart J. van Schravendijk, Adrien LaVoie
  • Publication number: 20150259791
    Abstract: Described are methods of making silicon nitride (SiN) materials on substrates. Improved SiN films made by the methods are also included. One aspect relates to depositing chlorine (Cl)-free conformal SiN films. In some embodiments, the SiN films are Cl-free and carbon (C)-free. Another aspect relates to methods of tuning the stress and/or wet etch rate of conformal SiN films. Another aspect relates to low-temperature methods of depositing high quality conformal SiN films. In some embodiments, the methods involve using trisilylamine (TSA) as a silicon-containing precursor.
    Type: Application
    Filed: May 15, 2015
    Publication date: September 17, 2015
    Inventors: Dennis Hausmann, Jon Henri, Bart van Schravendijk, Easwar Srinivasan
  • Publication number: 20150206719
    Abstract: Methods of depositing a film on a substrate surface include surface mediated reactions in which a film is grown over one or more cycles of reactant adsorption and reaction. In one aspect, the method is characterized by intermittent delivery of dopant species to the film between the cycles of adsorption and reaction.
    Type: Application
    Filed: January 28, 2015
    Publication date: July 23, 2015
    Inventors: Shankar Swaminathan, Jon Henri, Dennis Hausmann, Pramod Subramonium, Mandyam Sriram, Vishwanathan Rangarajan, Kirthi Kattige, Bart van Schravendijk, Andrew J. McKerrow