Patents by Inventor Myoung-Young Chung

Myoung-Young Chung 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).

  • Method for fabricating the heater buried plane waveguide path type of an optical switch
    Patent number: 5653008
    Abstract: The present invention relates to a method for fabricating the plane waveguide path type of the heater buried optical switch, and it exposes the thin film heater removing the second clad layer to speed the heat radiation of the thin film heater by forming flatly the first clad layer having the thin thickness of about 5-10 .mu.m on the channel waveguide path on which the channel waveguide path is formed on the lower clad layer, and forming the second upper clad layer in the thickness of about 15-20 .mu.m on the first clad layer and the thin film heater after the thin heater having the line width of about two times as compared with these of the channel waveguide path is formed at the channel waveguide path and the corresponding portion on the first upper clad layer.
    Type: Grant
    Filed: November 29, 1995
    Date of Patent: August 5, 1997
    Assignees: Electronics and Telecommunications Research Institute, Korea Telecommunication Authority
    Inventors: Jae-Gi Sim, Jang-Uk Sin, Myoung-Young Chung, Tae-Goo Choi