Patents by Inventor Won-Ho Sung

Won-Ho Sung 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: 11985846
    Abstract: A display device includes: a substrate; a display element on the substrate; a capping layer on the display element; and a thin film encapsulation layer on the capping layer, wherein the capping layer includes: a first capping layer on the display element; a second capping layer on the first capping layer, the second capping layer having a refractive index greater than that of the first capping layer; and a third capping layer on the second capping layer, the third capping layer having a refractive index smaller than that of the second capping layer, wherein the second capping layer has a thickness of 30 nanometers (nm) to 60 nm.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: May 14, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dal Ho Kim, Hee Seong Jeong, Won Ju Kwon, Sun Hwa Kim, Hyang Ki Sung, Na Ri Heo, Sang Min Hong
  • Publication number: 20240055230
    Abstract: Embodiments described herein relate to process systems for cleaning semiconductor process chamber components. The process systems include a process chamber having process chamber components. The process chamber components include a substrate support disposed within a chamber volume of the process chamber. A gas distribution assembly faces the substrate support. A gas baffle is fluidly coupled to the gas distribution assembly. A sensor system is coupled to the process chamber and is configured to monitor at least one characteristic of the volume of the process chamber. A dynamic gas assist is fluidly coupled to the gas baffle and is communicatively coupled to the sensor.
    Type: Application
    Filed: August 15, 2022
    Publication date: February 15, 2024
    Inventors: Jong Yun KIM, Kim Seong SIM, Roman M. MOSTOVOY, Won Ho SUNG, Pei-Chia CHEN
  • Publication number: 20200098549
    Abstract: A plasma processing chamber includes a chamber body and a lid assembly coupled to the chamber body to define a processing volume. The lid assembly includes a backing plate coupled to the chamber body, a diffuser with a plurality of openings formed therethrough, and a heat conductive spacer disposed between and coupled to the backing plate and the diffuser to transfer heat from the diffuser to the backing plate. The plasma processing chamber further includes a substrate support disposed within the processing volume.
    Type: Application
    Filed: September 26, 2018
    Publication date: March 26, 2020
    Inventors: Beom Soo PARK, Robin L. TINER, Jianheng LI, Sang Jeong OH, Lai ZHAO, Gaku FURUTA, Soo Young CHOI, Jeevan Prakash SEQUEIRA, Wei-Ting CHEN, Hsiao-Ling YANG, Cheng-Hang HSU, Won Ho SUNG, Hyun Young HONG
  • Patent number: 10134878
    Abstract: Embodiments of the present disclosure generally relate to methods for forming a TFT having a metal oxide layer. The method may include forming a metal oxide layer and treating the metal oxide layer with a fluorine containing gas or plasma. The fluorine treatment of the metal oxide layer helps fill the oxygen vacancies in the metal oxide channel layer, leading to a more stable TFT and preventing a negative threshold voltage in the TFT.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: November 20, 2018
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Hao-Chien Hsu, Dong-Kil Yim, Tae Kyung Won, Xuena Zhang, Won Ho Sung, Rodney Shunleong Lim
  • Publication number: 20170207327
    Abstract: Embodiments of the present disclosure generally relate to methods for forming a TFT having a metal oxide layer. The method may include forming a metal oxide layer and treating the metal oxide layer with a fluorine containing gas or plasma. The fluorine treatment of the metal oxide layer helps fill the oxygen vacancies in the metal oxide channel layer, leading to a more stable TFT and preventing a negative threshold voltage in the TFT.
    Type: Application
    Filed: November 22, 2016
    Publication date: July 20, 2017
    Inventors: Hao-Chien HSU, Dong-kil YIM, Tae Kyung WON, Xuena ZHANG, Won Ho SUNG, Rodney Shunleong LIM
  • Patent number: 6064029
    Abstract: A resistance spot welding apparatus having a primary circuit, a secondary circuit and a transformer for controlling the quality of a resistance spot weld, wherein a voltage is applied to the primary circuit to thereby generating a welding current, includes a current sensor for sensing the weld current from the primary circuit, a power factor calculator, a dynamic resistance calculator, a nugget estimator and a weld current controller. In the welding apparatus, the power factor calculator calculates power factors based on the welding current. And, the nugget estimator estimates a nugget size and nugget penetration from an dynamic resistance curve by using a Hidden Markov Model method, wherein the dynamic resistance curve is obtained by the power factor calculator. The quality of the resistance spot weld is controlled by changing the welding current based on the nugget size and the nugget penetration.
    Type: Grant
    Filed: June 4, 1998
    Date of Patent: May 16, 2000
    Assignee: Institute for Advanced Engineering
    Inventors: Jae-Sung Choi, Kyung-Il Kim, Won-Ho Sung