Patents by Inventor Woonhyung Shim

Woonhyung Shim 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).

  • Etchant composition, and method for manufacturing metal pattern and array substrate using the same
    Patent number: 10910412
    Abstract: An etchant composition including a persulfate, a four-nitrogen ring compound, a carbonyl ring compound having two or more carbonyl groups, and water, and having a weight ratio of the four-nitrogen ring compound and the carbonyl ring compound of about 1:0.1 to about 1:2. The etchant composition may etch a multilayer of titanium/copper and may be used for manufacturing a metal pattern and an array substrate having excellent properties of an etched pattern.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: February 2, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bong-Kyun Kim, Jinsuek Kim, Seungbo Shim, Shinhyuk Choi, Woonhyung Shim, Donghee Lee
  • ETCHANT COMPOSITION, AND METHOD FOR MANUFACTURING METAL PATTERN AND ARRAY SUBSTRATE USING THE SAME
    Publication number: 20190288015
    Abstract: An etchant composition including a persulfate, a four-nitrogen ring compound, a carbonyl ring compound having two or more carbonyl groups, and water, and having a weight ratio of the four-nitrogen ring compound and the carbonyl ring compound of about 1:0.1 to about 1:2. The etchant composition may etch a multilayer of titanium/copper and may be used for manufacturing a metal pattern and an array substrate having excellent properties of an etched pattern.
    Type: Application
    Filed: March 18, 2019
    Publication date: September 19, 2019
    Inventors: Bong-Kyun KIM, Jinsuek Kim, Seungbo Shim, Shinhyuk Choi, Woonhyung Shim, Donghee Lee