Patents by Inventor Lakmal Charidu Kalutarage

Lakmal Charidu Kalutarage 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: 20240160100
    Abstract: Embodiments disclosed herein may include a method for developing a photopatterned metal oxo photoresist. In an embodiment, the method may include pre-treating the photopatterned metal oxo photoresist with a pre-treatment process, developing the photopatterned metal oxo photoresist with a thermal dry develop process to selectively remove a portion of the photopatterned metal oxo photoresist and form a resist mask. In an embodiment, the thermal dry develop process includes a first sub-operation, and a second sub-operation that is different than the first sub-operation. In an embodiment, the process further includes post-treating the resist mask with a post-treatment process.
    Type: Application
    Filed: July 17, 2023
    Publication date: May 16, 2024
    Inventors: Tzu Shun Yang, Zhenxing Han, Madhur Sachan, Lequn Liu, Nasrin Kazem, Lakmal Charidu Kalutarage, Mark Joseph Saly
  • Patent number: 11886120
    Abstract: Embodiments disclosed herein include methods of depositing a metal oxo photoresist using dry deposition processes. In an embodiment, the method comprises forming a first metal oxo film on the substrate with a first vapor phase process including a first metal precursor vapor and a first oxidant vapor, and forming a second metal oxo film over the first metal oxo film with a second vapor phase process including a second metal precursor vapor and a second oxidant vapor.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: January 30, 2024
    Assignee: Applied Materials, Inc.
    Inventors: Lakmal Charidu Kalutarage, Mark Joseph Saly, Bhaskar Jyoti Bhuyan, Thomas Joseph Knisley, Kelvin Chan, Regina Germanie Freed, David Michael Thompson, Susmit Singha Roy, Madhur Sachan
  • Publication number: 20240012325
    Abstract: Embodiments disclosed herein include a method of optimizing a post deposition bake of a photoresist layer. In an embodiment, the method comprises depositing the photoresist layer on a substrate, baking the photoresist layer, and measuring properties of the photoresist layer with an optical tool.
    Type: Application
    Filed: June 1, 2023
    Publication date: January 11, 2024
    Inventors: LUISA BOZANO, PAOLA DE CECCO, BEKELE WORKU, LAKMAL CHARIDU KALUTARAGE, RUIYING HAO
  • Publication number: 20230386839
    Abstract: Embodiments disclosed herein include methods of depositing a metal oxo photoresist using dry deposition processes. In an embodiment, the method comprises forming a first metal oxo film on the substrate with a first vapor phase process including a first metal precursor vapor and a first oxidant vapor, and forming a second metal oxo film over the first metal oxo film with a second vapor phase process including a second metal precursor vapor and a second oxidant vapor.
    Type: Application
    Filed: December 16, 2022
    Publication date: November 30, 2023
    Inventors: Lakmal Charidu Kalutarage, Mark Joseph Saly, Bhaskar Jyoti Bhuyan, Thomas Joseph Knisley, Kelvin Chan, Regina Germanie Freed, David Michael Thompson, Susmit Singha Roy, Madhur Sachan
  • Publication number: 20230290646
    Abstract: Embodiments disclosed herein include methods of developing a metal oxo photoresist. In an embodiment, the method comprises providing a substrate with the metal oxo photoresist into a vacuum chamber, where the metal oxo photoresist comprises exposed regions and unexposed regions. In an embodiment, the unexposed regions comprise a higher carbon concentration than the exposed regions. The method may further comprise vaporizing a halogenating agent into the vacuum chamber, where the halogenating agent reacts with either the unexposed regions or the exposed regions to produce a volatile byproduct. In an embodiment, the method may further comprise purging the vacuum chamber.
    Type: Application
    Filed: May 17, 2023
    Publication date: September 14, 2023
    Inventors: Lakmal Charidu Kalutarage, Mark Joseph Saly, Bhaskar Jyoti Bhuyan, Madhur Sachan, Regina Freed
  • Publication number: 20230215736
    Abstract: Embodiments disclosed herein include methods of developing a metal oxo photoresist. In an embodiment, the method comprises providing a substrate with the metal oxo photoresist into a vacuum chamber, where the metal oxo photoresist comprises exposed regions and unexposed regions. In an embodiment, the unexposed regions comprise a higher carbon concentration than the exposed regions. The method may further comprise vaporizing a halogenating agent into the vacuum chamber, where the halogenating agent reacts with either the unexposed regions or the exposed regions to produce a volatile byproduct. In an embodiment, the method may further comprise purging the vacuum chamber.
    Type: Application
    Filed: March 2, 2023
    Publication date: July 6, 2023
    Inventors: Lakmal Charidu Kalutarage, Mark Joseph Saly, Bhaskar Jyoti Bhuyan, Madhur Sachan, Regina Freed
  • Publication number: 20230127535
    Abstract: Embodiments disclosed herein include methods of depositing a metal oxo photoresist using dry deposition processes. In an embodiment, the method comprises forming a first metal oxo film on the substrate with a first vapor phase process including a first metal precursor vapor and a first oxidant vapor, and forming a second metal oxo film over the first metal oxo film with a second vapor phase process including a second metal precursor vapor and a second oxidant vapor.
    Type: Application
    Filed: December 16, 2022
    Publication date: April 27, 2023
    Inventors: Lakmal Charidu Kalutarage, Mark Joseph Saly, Bhaskar Jyoti Bhuyan, Thomas Joseph Knisley, Kelvin Chan, Regina Gemanie Freed, David Michael Thompson, Susmit Singha Roy, Madhur Sachan
  • Patent number: 11621172
    Abstract: Embodiments disclosed herein include methods of developing a metal oxo photoresist. In an embodiment, the method comprises providing a substrate with the metal oxo photoresist into a vacuum chamber, where the metal oxo photoresist comprises exposed regions and unexposed regions. In an embodiment, the unexposed regions comprise a higher carbon concentration than the exposed regions. The method may further comprise vaporizing a halogenating agent into the vacuum chamber, where the halogenating agent reacts with either the unexposed regions or the exposed regions to produce a volatile byproduct. In an embodiment, the method may further comprise purging the vacuum chamber.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: April 4, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Lakmal Charidu Kalutarage, Mark Joseph Saly, Bhaskar Jyoti Bhuyan, Madhur Sachan, Regina Freed
  • Patent number: 11562904
    Abstract: Embodiments disclosed herein include methods of depositing a metal oxo photoresist using dry deposition processes. In an embodiment, the method comprises forming a first metal oxo film on the substrate with a first vapor phase process including a first metal precursor vapor and a first oxidant vapor, and forming a second metal oxo film over the first metal oxo film with a second vapor phase process including a second metal precursor vapor and a second oxidant vapor.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: January 24, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Lakmal Charidu Kalutarage, Mark Joseph Saly, Bhaskar Jyoti Bhuyan, Thomas Joseph Knisley, Kelvin Chan, Regina Germanie Freed, David Michael Thompson, Susmit Singha Roy, Madhur Sachan
  • Publication number: 20220342302
    Abstract: Embodiments disclosed herein include a method of patterning a metal oxo photoresist. In an embodiment, the method comprises depositing the metal oxo photoresist on a substrate, treating the metal oxo photoresist with a first treatment, exposing the metal oxo photoresist with an EUV exposure to form exposed regions and unexposed regions, treating the exposed metal oxo photoresist with a second treatment, and developing the metal oxo photoresist.
    Type: Application
    Filed: July 11, 2022
    Publication date: October 27, 2022
    Inventors: Lakmal Charidu Kalutarage, Zhenxing Han, Luisa Bozano, Madhur Sachan
  • Publication number: 20220308453
    Abstract: Embodiments disclosed herein include methods of depositing a positive tone photoresist using dry deposition and oxidation treatment processes. In an example, a method for forming a photoresist layer over a substrate in a vacuum chamber includes providing a metal precursor vapor into the vacuum chamber. The method further includes providing an oxidant vapor into the vacuum chamber, where a reaction between the metal precursor vapor and the oxidant vapor results in the formation of a positive tone photoresist layer on a surface of the substrate. The positive tone photoresist layer is a metal-oxo containing material. The method further includes performing a post anneal process of the metal-oxo containing material in an oxygen-containing environment.
    Type: Application
    Filed: March 1, 2022
    Publication date: September 29, 2022
    Inventors: Lakmal Charidu Kalutarage, Aaron Dangerfield, Mark Joseph Saly
  • Publication number: 20220262625
    Abstract: Embodiments disclosed herein include methods of depositing a metal oxo photoresist using chemical vapor condensation deposition processes. In an example, a method for forming a photoresist layer over a substrate in a vacuum chamber includes providing a metal precursor vapor into the vacuum chamber from an ampoule maintained at a first temperature. The method further includes providing an oxidant vapor into the vacuum chamber, where a reaction between the metal precursor vapor and the oxidant vapor results in the formation of the photoresist layer on a surface of the substrate. The photoresist layer is a metal oxo containing material. The substrate is maintained at a second temperature less than the first temperature during the formation of the photoresist layer on the surface of the substrate.
    Type: Application
    Filed: January 12, 2022
    Publication date: August 18, 2022
    Inventors: Lakmal Charidu Kalutarage, Kelvin Chan, Mark Joseph Saly
  • Publication number: 20220199406
    Abstract: Embodiments disclosed herein include a method of forming a metal-oxo photoresist on a substrate. In an embodiment, the method comprises repeating a deposition cycle, where each iteration of the deposition cycle comprises: a) flowing a metal precursor into a chamber comprising the substrate; and b) flowing an oxidant into the chamber, where the oxidant and the metal precursor react to form the metal-oxo photoresist.
    Type: Application
    Filed: November 23, 2021
    Publication date: June 23, 2022
    Inventors: Lakmal Charidu Kalutarage, Mark Joseph Saly, Ruiying Hao, Wayne French, Kelvin Chan
  • Publication number: 20220155689
    Abstract: Some embodiments include a method of depositing a photoresist onto a substrate in a processing chamber. In an embodiment, the method comprises flowing an oxidant into the processing chamber through a first path in a showerhead, and flowing an organometallic into the processing chamber through a second path in the showerhead. In an embodiment, the first path is isolated from the second path so that the oxidant and the organometallic do not mix within the showerhead. In an embodiment, the method further comprises that the oxidant and the organometallic react in the processing chamber to deposit the photoresist on the substrate.
    Type: Application
    Filed: October 22, 2021
    Publication date: May 19, 2022
    Inventors: Farzad Houshmand, Wayne French, Anantha Subramani, Kelvin Chan, Lakmal Charidu Kalutarage, Mark Joseph Saly
  • Publication number: 20220026807
    Abstract: Embodiments disclosed herein include methods of depositing a metal oxo photoresist using dry deposition processes. In an embodiment, the method comprises forming a first metal oxo film on the substrate with a first vapor phase process including a first metal precursor vapor and a first oxidant vapor, and forming a second metal oxo film over the first metal oxo film with a second vapor phase process including a second metal precursor vapor and a second oxidant vapor.
    Type: Application
    Filed: June 23, 2021
    Publication date: January 27, 2022
    Inventors: Lakmal Charidu Kalutarage, Mark Joseph Saly, Bhaskar Jyoti Bhuyan, Thomas Joseph Knisley, Kelvin Chan, Regina Germanie Freed, David Michael Thompson, Susmit Singha Roy, Madhur Sachan
  • Publication number: 20220028691
    Abstract: Embodiments disclosed herein include methods of depositing a metal oxo photoresist using dry deposition processes. In an embodiment, the method comprises forming a first metal oxo film on the substrate with a first vapor phase process including a first metal precursor vapor and a first oxidant vapor, and forming a second metal oxo film over the first metal oxo film with a second vapor phase process including a second metal precursor vapor and a second oxidant vapor.
    Type: Application
    Filed: July 21, 2020
    Publication date: January 27, 2022
    Inventors: Lakmal Charidu Kalutarage, Mark Joseph Saly, Bhaskar Jyoti Bhuyan, Thomas Joseph Knisley, Kelvin Chan, Regina Germanie Freed, David Michael Thompson, Susmit Singha Roy, Madhur Sachan
  • Publication number: 20220002869
    Abstract: Embodiments disclosed herein include methods of depositing a metal oxo photoresist using dry deposition processes. In an embodiment, the method for forming a photoresist layer over a substrate in a vacuum chamber comprises providing a metal precursor vapor into the vacuum chamber. In an embodiment, the method further comprises providing an oxidant vapor into the vacuum chamber, where a reaction between the metal precursor vapor and the oxidant vapor results in the formation of the photoresist layer on a surface of the substrate. In an embodiment, the photoresist layer is a metal oxo containing material.
    Type: Application
    Filed: June 17, 2021
    Publication date: January 6, 2022
    Inventors: Lakmal Charidu Kalutarage, Aaron Dangerfield, Mark Joseph Saly, David Michael Thompson, Susmit Singha Roy, Regina Freed
  • Publication number: 20220002882
    Abstract: Embodiments disclosed herein include methods of developing a metal oxo photoresist. In an embodiment, the method comprises providing a substrate with the metal oxo photoresist into a vacuum chamber, where the metal oxo photoresist comprises exposed regions and unexposed regions. In an embodiment, the unexposed regions comprise a higher carbon concentration than the exposed regions. The method may further comprise vaporizing a halogenating agent into the vacuum chamber, where the halogenating agent reacts with either the unexposed regions or the exposed regions to produce a volatile byproduct. In an embodiment, the method may further comprise purging the vacuum chamber.
    Type: Application
    Filed: June 15, 2021
    Publication date: January 6, 2022
    Inventors: Lakmal Charidu Kalutarage, Mark Joseph Saly, Bhaskar Jyoti Bhuyan, Madhur Sachan, Regina Freed
  • Patent number: 11217443
    Abstract: Embodiments disclosed herein include methods of forming high quality silicon nitride films. In an embodiment, a method of depositing a film on a substrate may comprise forming a silicon nitride film over a surface of the substrate in a first processing volume with a deposition process, and treating the silicon nitride film in a second processing volume, wherein treating the silicon nitride film comprises exposing the film to a plasma induced by a modular high-frequency plasma source. In an embodiment, a sheath potential of the plasma is less than 100 V, and a power density of the high-frequency plasma source is approximately 5 W/cm2 or greater, approximately 10 W/cm2 or greater, or approximately 20 W/cm2 or greater.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: January 4, 2022
    Assignee: Applied Materials, Inc.
    Inventors: Vinayak Veer Vats, Hang Yu, Philip Allan Kraus, Sanjay G. Kamath, William John Durand, Lakmal Charidu Kalutarage, Abhijit B. Mallick, Changling Li, Deenesh Padhi, Mark Joseph Saly, Thai Cheng Chua, Mihaela A. Balseanu
  • Patent number: 10985009
    Abstract: Embodiments include a method for forming a carbon containing film. In an embodiment, the method comprises flowing a precursor gas into a processing chamber. For example the precursor gas comprises carbon containing molecules. In an embodiment, the method further comprises flowing a co-reactant gas into the processing chamber. In an embodiment, the method further comprises striking a plasma in the processing chamber. In an embodiment plasma activated co-reactant molecules initiate polymerization of the carbon containing molecules in the precursor gas. Embodiments may also include a method that further comprises depositing a carbon containing film onto a substrate in the processing chamber.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: April 20, 2021
    Assignee: Applied Materials, Inc.
    Inventors: Lakmal Charidu Kalutarage, Mark Saly, David Thompson, William John Durand, Kelvin Chan, Hanhong Chen, Philip Allan Kraus