Patents by Inventor Kwangduk Douglas Lee

Kwangduk Douglas Lee 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: 20200328066
    Abstract: A system and method for forming a film includes generating a plasma in a processing volume of a processing chamber to form the film on a substrate. The processing chamber may include a gas distributor configured to generate the plasma in the processing volume. Further, a barrier gas is provided into the processing volume to form a gas curtain around a plasma located in the processing volume. The barrier gas is supplied by a gas supply source through an inlet port disposed along a first side of the processing chamber. Further, an exhaust port is disposed along the first side of the processing chamber and the plasma and the barrier gas is purged via the exhaust port.
    Type: Application
    Filed: March 25, 2020
    Publication date: October 15, 2020
    Inventors: Byung Seok KWON, Dong Hyung LEE, Prashant Kumar KULSHRESHTHA, Kwangduk Douglas LEE, Ratsamee LIMDULPAIBOON, Irfan JAMIL, Pyeong Youn ROH, Jun MA, Amit Kumar BANSAL, Tuan Anh NGUYEN, Juan Carlos ROCHA-ALVAREZ
  • Publication number: 20200255940
    Abstract: Implementations of the disclosure generally relate to a method of cleaning a semiconductor processing chamber. In one implementation, a method of cleaning a deposition chamber includes flowing a nitrogen containing gas into a processing region within the deposition chamber, striking a plasma in the processing region utilizing a radio frequency power, introducing a cleaning gas into a remote plasma source that is fluidly connected to the deposition chamber, generating reactive species of the cleaning gas in the remote plasma source, introducing the cleaning gas into the deposition chamber, and removing deposits on interior surfaces of the deposition chamber at different etch rates.
    Type: Application
    Filed: February 7, 2020
    Publication date: August 13, 2020
    Inventors: Byung Seok KWON, Lu XU, Prashant Kumar KULSHRESHTHA, Seoyoung LEE, Dong Hyung LEE, Kwangduk Douglas LEE
  • Publication number: 20200249263
    Abstract: Embodiments described herein relate to methods and tools for monitoring electrostatic chucking performance. A performance test is performed that requires only one bowed substrate and one reference substrate. To run the test, the reference substrate is positioned on an electrostatic chuck in a process chamber and the bowed substrate is positioned on the reference substrate. A voltage is applied from a power source to the electrostatic chuck, generating an electrostatic chucking force to secure the bowed substrate to the reference substrate. Thereafter, the applied voltage is decreased incrementally until the electrostatic chucking force is too weak to maintain the bowed substrate in flat form, resulting in dechucking of the bowed wafer. By monitoring the impedance of the chamber during deposition using a sensor, the dechucking threshold voltage can be identified at the point where the impedance of the reference substrate and the impedance of the bowed substrate deviates.
    Type: Application
    Filed: January 21, 2020
    Publication date: August 6, 2020
    Inventors: Lu XU, Sarah Michelle BOBEK, Prashant Kumar KULSHRESHTHA, Byung Seok KWON, Venkata Sharat Chandra PARIMI, Kwangduk Douglas LEE, Juan Carlos ROCHA-ALVAREZ
  • Patent number: 10734232
    Abstract: Embodiments of the present disclosure generally relate to methods and apparatus for depositing metal silicide layers on substrates and chamber components. In one embodiment, a method of forming a hardmask includes positioning the substrate having a target layer within a processing chamber, forming a seed layer comprising metal silicide on the target layer and depositing a tungsten-based bulk layer on the seed layer, wherein the metal silicide layer and the tungsten-based bulk layer form the hardmask. In another embodiment, a method of conditioning the components of a plasma processing chamber includes flowing an inert gas comprising argon or helium from a gas applicator into the plasma processing chamber, exposing a substrate support to a plasma within the plasma processing chamber and forming a seasoning layer including metal silicide on an aluminum-based surface of the substrate support.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: August 4, 2020
    Assignee: Applied Materials, Inc.
    Inventors: Prashant Kumar Kulshreshtha, Jiarui Wang, Kwangduk Douglas Lee, Milind Gadre, Xiaoquan Min, Paul Connors
  • Patent number: 10727059
    Abstract: Implementations described herein generally relate to the fabrication of integrated circuits. More particularly, the implementations described herein provide techniques for deposition of amorphous carbon films on a substrate. In one implementation, a method of forming an amorphous carbon film is provided. The method comprises depositing an amorphous carbon film on an underlayer positioned on a susceptor in a first processing region. The method further comprises implanting a dopant or inert species into the amorphous carbon film in a second processing region. The dopant or inert species is selected from carbon, boron, nitrogen, silicon, phosphorous, argon, helium, neon, krypton, xenon or combinations thereof. The method further comprises patterning the doped amorphous carbon film. The method further comprises etching the underlayer.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: July 28, 2020
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Sarah Bobek, Prashant Kumar Kulshreshtha, Rajesh Prasad, Kwangduk Douglas Lee, Harry Whitesell, Hidetaka Oshio, Dong Hyung Lee, Deven Matthew Raj Mittal
  • Publication number: 20200234982
    Abstract: Implementations disclosed herein describe a bevel etch apparatus within a loadlock bevel etch chamber and methods of using the same. The bevel etch apparatus has a mask assembly within the loadlock bevel etch chamber. During an etch process, the mask assembly delivers a gas flow to control bevel etch without the use of a shadow frame. As such, the edge exclusion at the bevel edge can be reduced, thus increasing product yield.
    Type: Application
    Filed: April 2, 2020
    Publication date: July 23, 2020
    Inventors: Saptarshi BASU, Jeongmin LEE, Paul CONNORS, Dale R. DU BOIS, Prashant Kumar KULSHRESHTHA, Karthik Thimmavajjula NARASIMHA, Brett BERENS, Kalyanjit GHOSH, Jianhua ZHOU, Ganesh BALASUBRAMANIAN, Kwangduk Douglas LEE, Juan Carlos ROCHA-ALVAREZ, Hiroyuki OGISO, Liliya KRIVULINA, Rick GILBERT, Mohsin WAQAR, Venkatanarayana SHANKARAMURTHY, Hari K. PONNEKANTI
  • Publication number: 20200224310
    Abstract: Aspects of the present disclosure relate generally to pedestals, components thereof, and methods of using the same for substrate processing chambers. In one implementation, a pedestal for disposition in a substrate processing chamber includes a body. The body includes a support surface. The body also includes a stepped surface that protrudes upwards from the support surface. The stepped surface is disposed about the support surface to surround the support surface. The stepped surface defines an edge ring such that the edge ring is integrated with the pedestal to form the body that is monolithic. The pedestal also includes an electrode disposed in the body, and one or more heaters disposed in the body.
    Type: Application
    Filed: December 16, 2019
    Publication date: July 16, 2020
    Inventors: Sarah Michelle BOBEK, Venkata Sharat Chandra PARIMI, Prashant Kumar KULSHRESHTHA, Vinay K. PRABHAKAR, Kwangduk Douglas LEE, Sungwon HA, Jian LI
  • Publication number: 20200203132
    Abstract: A system for modifying the uniformity pattern of a thin film deposited in a plasma processing chamber includes a single radio-frequency (RF) power source that is coupled to multiple points on the discharge electrode of the plasma processing chamber. Positioning of the multiple coupling points, a power distribution between the multiple coupling points, or a combination of both are selected to at least partially compensate for a consistent non-uniformity pattern of thin films produced by the chamber. The power distribution between the multiple coupling points may be produced by an appropriate RF phase difference between the RF power applied at each of the multiple coupling points.
    Type: Application
    Filed: March 2, 2020
    Publication date: June 25, 2020
    Inventors: Zheng John YE, Ganesh BALASUBRAMANIAN, Thuy BRITCHER, Jay D. PINSON, II, Hiroji HANAWA, Juan Carlos ROCHA-ALVAREZ, Kwangduk Douglas LEE, Martin Jay SEAMONS, Bok Hoen KIM, Sungwon HA
  • Patent number: 10679830
    Abstract: Embodiments of the invention generally relate to methods for removing a boron-carbon layer from a surface of a processing chamber using water vapor plasma treatment. In one embodiment, a method for cleaning a surface of a processing chamber includes positioning the pedestal at a first distance from the showerhead, and exposing a deposited boron-carbon layer to a first plasma process where the first plasma process comprises generating a plasma that comprises water vapor and a first carrier gas by biasing a showerhead that is disposed over a pedestal, and positioning the pedestal at a second distance from the showerhead and exposing the deposited boron-carbon layer to a second plasma process where the second plasma process comprises generating a plasma that comprises water vapor and a second carrier gas by biasing the showerhead and biasing a side electrode relative to the showerhead.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: June 9, 2020
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Feng Bi, Prashant Kumar Kulshreshtha, Kwangduk Douglas Lee, Paul Connors
  • Patent number: 10636684
    Abstract: Implementations disclosed herein describe a bevel etch apparatus within a loadlock bevel etch chamber and methods of using the same. The bevel etch apparatus has a mask assembly within the loadlock bevel etch chamber. During an etch process, the mask assembly delivers a gas flow to control bevel etch without the use of a shadow frame. As such, the edge exclusion at the bevel edge can be reduced, thus increasing product yield.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: April 28, 2020
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Saptarshi Basu, Jeongmin Lee, Paul Connors, Dale R. Du Bois, Prashant Kumar Kulshreshtha, Karthik Thimmavajjula Narasimha, Brett Berens, Kalyanjit Ghosh, Jianhua Zhou, Ganesh Balasubramanian, Kwangduk Douglas Lee, Juan Carlos Rocha-Alvarez, Hiroyuki Ogiso, Liliya Krivulina, Rick Gilbert, Mohsin Waqar, Venkatanarayana Shankaramurthy, Hari K. Ponnekanti
  • Patent number: 10580623
    Abstract: A system for modifying the uniformity pattern of a thin film deposited in a plasma processing chamber includes a single radio-frequency (RF) power source that is coupled to multiple points on the discharge electrode of the plasma processing chamber. Positioning of the multiple coupling points, a power distribution between the multiple coupling points, or a combination of both are selected to at least partially compensate for a consistent non-uniformity pattern of thin films produced by the chamber. The power distribution between the multiple coupling points may be produced by an appropriate RF phase difference between the RF power applied at each of the multiple coupling points.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: March 3, 2020
    Assignee: Applied Materials, Inc.
    Inventors: Zheng John Ye, Ganesh Balasubramanian, Thuy Britcher, Jay D. Pinson, II, Hiroji Hanawa, Juan Carlos Rocha-Alvarez, Kwangduk Douglas Lee, Martin Jay Seamons, Bok Hoen Kim, Sungwon Ha
  • Patent number: 10510518
    Abstract: Embodiments of the invention generally relate to methods of dry stripping boron-carbon films. In one embodiment, alternating plasmas of hydrogen and oxygen are used to remove a boron-carbon film. In another embodiment, co-flowed oxygen and hydrogen plasma is used to remove a boron-carbon containing film. A nitrous oxide plasma may be used in addition to or as an alternative to either of the above oxygen plasmas. In another embodiment, a plasma generated from water vapor is used to remove a boron-carbon film. The boron-carbon removal processes may also include an optional polymer removal process prior to removal of the boron-carbon films. The polymer removal process includes exposing the boron-carbon film to NF3 to remove from the surface of the boron-carbon film any carbon-based polymers generated during a substrate etching process.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: December 17, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Kwangduk Douglas Lee, Sudha Rathi, Ramprakash Sankarakrishnan, Martin Jay Seamons, Irfan Jamil, Bok Hoen Kim
  • Patent number: 10504727
    Abstract: Implementations of the present disclosure generally relate to the fabrication of integrated circuits. More particularly, the implementations described herein provide techniques for deposition of thick hardmask films on a substrate. In one implementation, a method of forming a hardmask layer on a substrate is provided. The method comprises applying a chucking voltage to a substrate positioned on an electrostatic chuck in a processing chamber, forming a seed layer comprising boron on a film stack disposed on a substrate by supplying a seed layer gas mixture in the processing chamber while maintaining the chucking voltage, forming a transition layer comprising boron and tungsten on the seed layer by supplying a transition layer gas mixture in the processing chamber and forming a bulk hardmask layer on the transition layer by supplying a main deposition gas mixture in the processing chamber.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: December 10, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Jiarui Wang, Prashant Kumar Kulshreshtha, Eswaranand Venkatasubramanian, Susmit Singha Roy, Kwangduk Douglas Lee
  • Publication number: 20190371630
    Abstract: Implementations disclosed herein describe a bevel etch apparatus within a loadlock bevel etch chamber and methods of using the same. The bevel etch apparatus has a mask assembly within the loadlock bevel etch chamber. During an etch process, the mask assembly delivers a gas flow to control bevel etch without the use of a shadow frame. As such, the edge exclusion at the bevel edge can be reduced, thus increasing product yield.
    Type: Application
    Filed: August 14, 2019
    Publication date: December 5, 2019
    Inventors: Saptarshi Basu, Jeongmin Lee, Paul Connors, Dale R. Du Bois, Prashant Kumar Kulshreshtha, Karthik Thimmavajjula Narasimha, Brett Berens, Kalyanjit Ghosh, Jianhua Zhou, Ganesh Balasubramanian, Kwangduk Douglas Lee, Juan Carlos Rocha-Alvarez, Hiroyuki Ogiso, Liliya Krivulina, Rick Gilbert, Mohsin Waqar, Venkatanarayana Shankaramurthy, Hari K. Ponnekanti
  • Publication number: 20190355609
    Abstract: Techniques are disclosed for methods and apparatuses for increasing the breakdown voltage while substantially reducing the voltage leakage of an electrostatic chuck at temperatures exceeding about 300 degrees Celsius in a processing chamber.
    Type: Application
    Filed: June 13, 2019
    Publication date: November 21, 2019
    Inventors: Prashant KULSHRESHTHA, Kwangduk Douglas LEE, Bok Hoen KIM, Zheng John YE, Swayambhu Prasad BEHERA, Ganesh BALASUBRAMANIAN, Juan Carlos ROCHA-ALVAREZ, Jian J. CHEN
  • Publication number: 20190341227
    Abstract: One or more embodiments described herein generally relate to selective deposition of substrates in semiconductor processes. In these embodiments, a precursor is delivered to a process region of a process chamber. A plasma is generated by delivering RF power to an electrode within a substrate support surface of a substrate support disposed in the process region of the process chamber. In embodiments described herein, delivering the RF power at a high power range, such as greater than 4.5 kW, advantageously leads to greater plasma coupling to the electrode, resulting in selective deposition to the substrate, eliminating deposition on other process chamber areas such as the process chamber side walls. As such, less process chamber cleans are necessary, leading to less time between depositions, increasing throughput and making the process more cost-effective.
    Type: Application
    Filed: May 3, 2019
    Publication date: November 7, 2019
    Inventors: Satya THOKACHICHU, Edward P. HAMMOND, IV, Viren KALSEKAR, Zheng John YE, Sarah Michelle BOBEK, Abdul Aziz KHAJA, Vinay K. PRABHAKAR, Venkata Sharat Chandra PARIMI, Prashant Kumar KULSHRESHTHA, Kwangduk Douglas LEE
  • Patent number: 10418243
    Abstract: Implementations of the present disclosure generally relate to the fabrication of integrated circuits. More particularly, the implementations described herein provide techniques for deposition of boron-carbon films on a substrate. In one implementation, a method of processing a substrate is provided. The method comprises flowing a hydrocarbon-containing gas mixture into a processing volume of a processing chamber having a substrate positioned therein, wherein the substrate is heated to a substrate temperature from about 400 degrees Celsius to about 700 degrees Celsius, flowing a boron-containing gas mixture into the processing volume and generating an RF plasma in the processing volume to deposit a boron-carbon film on the heated substrate, wherein the boron-carbon film has an elastic modulus of from about 200 to about 400 GPa and a stress from about ?100 MPa to about 100 MPa.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: September 17, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Prashant Kumar Kulshreshtha, Ziqing Duan, Karthik Thimmavajjula Narasimha, Kwangduk Douglas Lee, Bok Hoen Kim
  • Patent number: 10403535
    Abstract: Embodiments of the present disclosure provide an electrostatic chuck for maintaining a flatness of a substrate being processed in a plasma reactor at high temperatures. In one embodiment, the electrostatic chuck comprises a chuck body coupled to a support stem, the chuck body having a substrate supporting surface, and the chuck body has a volume resistivity value of about 1×107 ohm-cm to about 1×1015 ohm-cm in a temperature of about 250° C. to about 700° C., and an electrode embedded in the body, the electrode is coupled to a power supply. In one example, the chuck body is composed of an aluminum nitride material which has been observed to be able to optimize chucking performance around 600° C. or above during a deposition or etch process, or any other process that employ both high operating temperature and substrate clamping features.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: September 3, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Zheng John Ye, Jay D. Pinson, II, Hiroji Hanawa, Jianhua Zhou, Xing Lin, Ren-Guan Duan, Kwangduk Douglas Lee, Bok Hoen Kim, Swayambhu P. Behera, Sungwon Ha, Ganesh Balasubramanian, Juan Carlos Rocha-Alvarez, Prashant Kumar Kulshreshtha, Jason K. Foster, Mukund Srinivasan, Uwe P. Haller, Hari K. Ponnekanti
  • Patent number: 10403515
    Abstract: Implementations disclosed herein describe a bevel etch apparatus within a loadlock bevel etch chamber and methods of using the same. The bevel etch apparatus has a mask assembly within the loadlock bevel etch chamber. During an etch process, the mask assembly delivers a gas flow to control bevel etch without the use of a shadow frame. As such, the edge exclusion at the bevel edge can be reduced, thus increasing product yield.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: September 3, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Saptarshi Basu, Jeongmin Lee, Paul Connors, Dale R. Du Bois, Prashant Kumar Kulshreshtha, Karthik Thimmavajjula Narasimha, Brett Berens, Kalyanjit Ghosh, Jianhua Zhou, Ganesh Balasubramanian, Kwangduk Douglas Lee, Juan Carlos Rocha-Alvarez, Hiroyuki Ogiso, Liliya Krivulina, Rick Gilbert, Mohsin Waqar, Venkatanarayana Shankaramurthy, Hari K. Ponnekanti
  • Patent number: 10373822
    Abstract: Methods for modulating local stress and overlay error of one or more patterning films may include modulating a gas flow profile of gases introduced into a chamber body, flowing gases within the chamber body toward a substrate, rotating the substrate, and unifying a center-to-edge temperature profile of the substrate by controlling the substrate temperature with a dual zone heater. A chamber for depositing a film may include a chamber body comprising one or more processing regions. The chamber body may include a gas distribution assembly having a blocker plate for delivering gases into the one or more processing regions. The blocker plate may have a first region and a second region, and the first region and second region each may have a plurality of holes. The chamber body may have a dual zone heater.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: August 6, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Prashant Kumar Kulshreshtha, Sudha Rathi, Praket P. Jha, Saptarshi Basu, Kwangduk Douglas Lee, Martin J. Seamons, Bok Hoen Kim, Ganesh Balasubramanian, Ziqing Duan, Lei Jing, Mandar B. Pandit