Patents by Inventor Daeyeong Yun

Daeyeong Yun 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).

  • PZT amorphous alloy plating solution and method for plating a PZT amorphous alloy using the same
    Patent number: 9909225
    Abstract: The present invention relates to the lead-zirconate-titanate (PZT) amorphous alloy plating solution which may be used to form a PZT amorphous alloy film having excellent mechanical and physical properties and a method for plating a PZT amorphous alloy using the same. The PZT amorphous alloy plating solution may include a Pb precursor, a Zr precursor, and a Ti precursor. 10˜50 parts by weight of the Zr precursor and 5˜30 parts by weight of the Ti precursor may be included based on 100 parts by weight of the Pb precursor. Accordingly, electrical conductivity can be improved because the PZT amorphous alloy plating solution has a structure which has low crystallinity or which is amorphous. Furthermore, excellent electrical characteristics can be achieved because the PZT amorphous alloy plating solution has excellent conductivity or chemical stability.
    Type: Grant
    Filed: May 29, 2016
    Date of Patent: March 6, 2018
    Assignee: BEFS CO., LTD.
    Inventors: Seungjin Lee, Changhyeok Bang, Daeyeong Yun
  • PZT AMORPHOUS ALLOY PLATING SOLUTION AND METHOD FOR PLATING A PZT AMORPHOUS ALLOY USING THE SAME
    Publication number: 20170260640
    Abstract: The present invention relates to the lead-zirconate-titanate (PZT) amorphous alloy plating solution which may be used to form a PZT amorphous alloy film having excellent mechanical and physical properties and a method for plating a PZT amorphous alloy using the same. The PZT amorphous alloy plating solution may include a Pb precursor, a Zr precursor, and a Ti precursor. 10˜50 parts by weight of the Zr precursor and 5˜30 parts by weight of the Ti precursor may be included based on 100 parts by weight of the Pb precursor. Accordingly, electrical conductivity can be improved because the PZT amorphous alloy plating solution has a structure which has low crystallinity or which is amorphous. Furthermore, excellent electrical characteristics can be achieved because the PZT amorphous alloy plating solution has excellent conductivity or chemical stability.
    Type: Application
    Filed: May 29, 2016
    Publication date: September 14, 2017
    Inventors: Changhyeok Bang, Seungjin Lee, Daeyeong Yun