Patents by Inventor Tae-Hong Ha

Tae-Hong Ha 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: 20220064784
    Abstract: Methods for selective deposition are described herein. Further, methods for improving selectivity comprising an ammonia plasma pre-clean process are also described. In some embodiments, a silyl amine is used to selectively form a surfactant layer on a dielectric surface. A ruthenium film may then be selectively deposited on a conductive surface. In some embodiments, the ammonia plasma removes oxide contaminations from conductive surfaces without adversely affecting the dielectric surface.
    Type: Application
    Filed: September 3, 2020
    Publication date: March 3, 2022
    Applicant: Applied Materials, Inc.
    Inventors: Wenjing Xu, Gang Shen, Yufei Hu, Feng Chen, Tae Hong Ha
  • Publication number: 20220037204
    Abstract: Methods and apparatus that forms a stabilization layer on copper-based material to inhibit formation of copper voids in the copper-based material. In some embodiments, a method of forming the stabilization layer on the copper-based material includes depositing a first stabilization layer on the copper-based material where the first stabilization layer forms a continuous film on the copper-based material and is formed of a first material that does not alloy with copper, depositing a second stabilization layer on the first stabilization layer where the second stabilization layer is formed from a second material that alloys with copper and where the first stabilization layer is configured to inhibit formation of voids in the copper-based material during subsequent high thermal budget processing.
    Type: Application
    Filed: August 3, 2020
    Publication date: February 3, 2022
    Inventors: Wenjing XU, Gang SHEN, Feng CHEN, Tae Hong HA
  • Publication number: 20220028793
    Abstract: Apparatuses and methods to provide electronic devices having metal films are provided. Some embodiments of the disclosure utilize a metallic tungsten layer as a liner that is filled with a metal film comprising cobalt. The metallic tungsten layer has good adhesion to the cobalt leading to enhanced cobalt gap-fill performance.
    Type: Application
    Filed: October 11, 2021
    Publication date: January 27, 2022
    Applicant: Applied Materials, Inc.
    Inventors: Yu Lei, Sang-Hyeob Lee, Chris Pabelico, Yi Xu, Tae Hong Ha, Xianmin Tang, Jin Hee Park
  • Publication number: 20220028795
    Abstract: Electronic devices and methods of forming electronic devices using a ruthenium or doped ruthenium liner and cap layer are described. A liner with a ruthenium layer and a cobalt layer is formed on a barrier layer. A conductive fill forms a second conductive line in contact with the first conductive line.
    Type: Application
    Filed: July 22, 2021
    Publication date: January 27, 2022
    Applicant: Applied Materials, Inc.
    Inventors: Wenjing Xu, Feng Chen, Tae Hong Ha, Xianmin Tang, Lu Chen, Zhiyuan Wu
  • Publication number: 20220013581
    Abstract: A variable resistance memory device includes lower conductive lines extending in a first direction on a substrate and spaced apart from each other in a second direction crossing the first direction, peripheral transistors on the substrate and arranged under the lower conductive lines in a third direction crossing the first direction and the second direction, and lower contacts electrically connecting the lower conductive lines to the peripheral transistors and extending in the third direction. Each of the lower conductive lines includes a first lower extending portion extending in the first direction, a second lower extending portion offset in the second direction from the first lower extending portion and extending in the first direction, and a lower connecting portion connecting the first lower extending portion to the second lower extending portion. Each of the lower contacts is in the lower connecting portion of a respective one of the lower conductive lines.
    Type: Application
    Filed: June 28, 2021
    Publication date: January 13, 2022
    Inventors: Tae Hong Ha, Jae Rok Kahng
  • Publication number: 20210407853
    Abstract: Methods of forming copper interconnects are described. A doped tantalum nitride layer formed on a copper layer on a substrate has a first amount of dopant. The doped tantalum nitride layer is exposed to a plasma comprising one or more of helium or neon to form a treated doped tantalum nitride layer with a decreased amount of dopant. Apparatus for performing the methods are also described.
    Type: Application
    Filed: June 28, 2020
    Publication date: December 30, 2021
    Applicant: Applied Materials, Inc.
    Inventors: Rui Li, Xiangjin Xie, Tae Hong Ha, Xianmin Tang, Lu Chen
  • Publication number: 20210371972
    Abstract: Methods and apparatus for processing a substrate include cleaning and self-assembly monolayer (SAM) formation for subsequent reverse selective atomic layer deposition. An apparatus may include a process chamber with a processing volume and a substrate support including a pedestal, a remote plasma source fluidly coupled to the process chamber and configured to produce radicals or ionized gas mixture with radicals that flow into the processing volume to remove residue or oxides from a surface of the substrate, a first gas delivery system with a first ampoule configured to provide at least one first chemical into the processing volume to produce a SAM on the surface of the substrate, a heating system located in the pedestal and configured to heat a substrate by flowing gas on a backside of the substrate, and a vacuum system fluidly coupled to the process chamber and configured to control heating of the substrate.
    Type: Application
    Filed: June 1, 2020
    Publication date: December 2, 2021
    Inventors: Xiangjin XIE, Carmen LEAL CERVANTES, Feng CHEN, Lu CHEN, Wenjing XU, Aravind KAMATH, Cheng-Hsiung Matthew TSAI, Tae Hong HA, Alexander JANSEN, Xianmin TANG
  • Publication number: 20210366722
    Abstract: Described is a process to clean up junction interfaces for fabricating semiconductor devices involving forming low-resistance electrical connections between vertically separated regions. An etch can be performed to remove silicon oxide on silicon surface at the bottom of a recessed feature. Described are methods and apparatus for etching up the bottom oxide of a hole or trench while minimizing the effects to the underlying epitaxial layer and to the dielectric layers on the field and the corners of metal gate structures. The method for etching features involves a reaction chamber equipped with a combination of capacitively coupled plasma and inductive coupled plasma. CHxFy gases and plasma are used to form protection layer, which enables the selectively etching of bottom silicon dioxide by NH3—NF3 plasma. Ideally, silicon oxide on EPI is removed to ensure low-resistance electric contact while the epitaxial layer and field/corner dielectric layers are—etched only minimally or not at all.
    Type: Application
    Filed: May 22, 2020
    Publication date: November 25, 2021
    Applicant: Applied Materials, Inc.
    Inventors: Yu Lei, Xuesong Lu, Tae Hong Ha, Xianmin Tang, Andrew Nguyen, Tza-Jing Gung, Philip A. Kraus, Chung Nang Liu, Hui Sun, Yufei Hu
  • Publication number: 20210351072
    Abstract: Described are methods for doping barrier layers such as tantalum (Ta), tantalum nitride (TaN), tantalum carbide (TaC), niobium (Nb), niobium nitride (NbN), manganese (Mn), manganese nitride (MnN), titanium (Ti), titanium nitride (TiN), molybdenum (Mo), and molybdenum nitride (MoN), and the like. Dopants may include one or more of one or more of ruthenium (Ru), manganese (Mn), niobium (Nb), cobalt (Co), vanadium (V), copper (Cu), aluminum (Al), carbon (C), oxygen (O), silicon (Si), molybdenum (Mo), and the like. The doped barrier layer provides improved adhesion at a thickness of less than about 15 ?.
    Type: Application
    Filed: May 6, 2020
    Publication date: November 11, 2021
    Applicant: Applied Materials, Inc.
    Inventors: Lu Chen, Christina L. Engler, Gang Shen, Feng Chen, Tae Hong Ha, Xianmin Tang
  • Publication number: 20210351136
    Abstract: Described are microelectronic device comprising a dielectric layer formed on a substrate, a feature 206 comprising a gap defined in the dielectric layer, a barrier layer on the dielectric layer, a two metal liner film on the barrier layer and a gap fill metal on the two metal liner. Embodiments provide a method of forming an microelectronic device comprising the two metal liner film on the barrier layer.
    Type: Application
    Filed: June 23, 2020
    Publication date: November 11, 2021
    Applicant: Applied Materials, Inc.
    Inventors: Gang Shen, Feng Chen, Yizhak Sabba, Tae Hong Ha, Xianmin Tang, Zhiyuan Wu, Wenjing Xu
  • Patent number: 11171046
    Abstract: Methods and apparatus for forming an interconnect structure, the method including selectively depositing two or more capping layers atop a top surface of a via within a low-k dielectric layer, wherein the two or more capping layers include a first layer of ruthenium and a second layer of cobalt.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: November 9, 2021
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Feng Chen, Yufei Hu, Wenjing Xu, Gang Shen, Zhiyuan Wu, Tae Hong Ha
  • Patent number: 11171045
    Abstract: Apparatuses and methods to provide electronic devices having metal films are provided. Some embodiments of the disclosure utilize a metallic tungsten layer as a liner that is filled with a metal film comprising cobalt. The metallic tungsten layer has good adhesion to the cobalt leading to enhanced cobalt gap-fill performance.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: November 9, 2021
    Assignee: Applied Materials, Inc.
    Inventors: Yu Lei, Sang-Hyeob Lee, Chris Pabelico, Yi Xu, Tae Hong Ha, Xianmin Tang, Jin Hee Park
  • Publication number: 20210320034
    Abstract: Methods and apparatus for selectively depositing a tungsten layer atop a dielectric surface.
    Type: Application
    Filed: April 10, 2020
    Publication date: October 14, 2021
    Inventors: Wei LEI, Yi XU, Yu LEI, Tae Hong HA, Raymond HUNG, Shirish A. PETHE
  • Patent number: 10892186
    Abstract: Methods and apparatus to fill a feature with a seamless gapfill of copper are described. A copper gapfill seed layer is deposited on a substrate surface by atomic layer deposition followed by a copper deposition by physical vapor deposition to fill the gap with copper.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: January 12, 2021
    Assignee: Applied Materials, Inc.
    Inventors: Ben-Li Sheu, Feng Q. Liu, Tae Hong Ha, Mei Chang, Shirish Pethe
  • Publication number: 20200321247
    Abstract: Methods and apparatus for forming an interconnect structure, the method including selectively depositing two or more capping layers atop a top surface of a via within a low-k dielectric layer, wherein the two or more capping layers include a first layer of ruthenium and a second layer of cobalt.
    Type: Application
    Filed: April 1, 2020
    Publication date: October 8, 2020
    Inventors: FENG CHEN, YUFEI HU, WENJING XU, GANG SHEN, ZHIYUAN WU, TAE HONG HA
  • Patent number: 10714388
    Abstract: Methods and apparatus for depositing a cobalt layer in a feature, such as, a word line formed in a substrate, are provided herein. In some embodiments, method of processing a substrate includes: exposing a substrate at a first temperature to a cobalt containing precursor to deposit a cobalt layer within a word line feature formed in the substrate, wherein the word line feature is part of a 3D NAND device; and annealing the substrate to remove contaminants from the cobalt layer and to reflow the cobalt layer into the word line feature, wherein the substrate is at a second temperature greater than the first temperature during the annealing.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: July 14, 2020
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Jin Hee Park, Tae Hong Ha, Sang-Hyeob Lee, Thomas Jongwan Kwon, Jaesoo Ahn, Xianmin Tang, Er-Xuan Ping, Sree Kesapragada
  • Publication number: 20200144056
    Abstract: Methods and apparatus for forming a cobalt layer on a substrate disposed in a process chamber are disclosed herein. In the present disclosure, exposing a substrate to a first process gas including a bonding agent in an amount sufficient to facilitate bonding or adhesion of cobalt to a first surface of the substrate; and depositing cobalt upon the first surface of the substrate to form a cobalt layer is disclosed. The use of one or more silanes or molybdenum carbonyl compositions facilitate bonding or adhesion of cobalt to a first surface of the substrate. In the present disclosure, suitable substrates include substrates that do not easily bond or adhere to cobalt, such as titanium nitrate or tantalum nitrate.
    Type: Application
    Filed: November 3, 2018
    Publication date: May 7, 2020
    Inventors: WEI LEI, TAE HONG HA, BYUNGHOON YOON, YU LEI
  • Publication number: 20200144073
    Abstract: Methods and apparatus for producing a reduced contact resistance for cobalt-titanium structures. In some embodiments, a method comprises depositing a titanium layer using a chemical vapor deposition (CVD) process, depositing a titanium nitride layer on the titanium layer using an atomic layer deposition (ALD) process, depositing a first cobalt layer on the titanium nitride layer using a physical vapor deposition (PVD) process, and depositing a second cobalt layer on the first cobalt layer using a CVD process.
    Type: Application
    Filed: October 2, 2019
    Publication date: May 7, 2020
    Inventors: TAKASHI KURATOMI, AVGERINOS GELATOS, TAE HONG HA, XUESONG LU, SZUHENG HO, WEI LEI, MARK LEE, RAYMOND HUNG, XIANMIN TANG
  • Patent number: 10633056
    Abstract: Provided is a bicycle with an automatic transmission, and more particularly, a bicycle with an automatic transmission for enabling rapid and smooth gearshifting from a low speed to a high speed or from a high speed to a low speed.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: April 28, 2020
    Inventors: Min Soo Ha, Jinsu Ha, Tae Hong Ha
  • Publication number: 20190348369
    Abstract: A method and apparatus for forming an interconnect on a substrate is provided. A protective layer is formed on the substrate and in a via formed on the substrate wherein the protective layer is resistant to a halogen containing material. A barrier layer is formed on top of the protective layer. The barrier layer comprises a halogen containing material. A metal layer is deposited over the barrier layer. In another embodiment, the protective layer is selectively deposited in the via.
    Type: Application
    Filed: May 10, 2018
    Publication date: November 14, 2019
    Inventors: Mehul B. NAIK, Paul F. MA, Tae Hong HA, Srinivas GUGGILLA