Patents by Inventor Young-Sun Sohn

Young-Sun Sohn 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 implanting ions in semiconductor device
    Patent number: 8951857
    Abstract: The present invention provides various methods for implanting ions in a semiconductor device that substantially compensate for a difference in threshold voltages between a central portion and edge portions of a substrate generated while performing uniform ion implantation to entire surfaces of a substrate. Other methods for fabricating a semiconductor device improve distribution of transistor parameters across a substrate by forming a nonuniform channel doping layer or by forming a nonuniform junction profile, across the substrate.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: February 10, 2015
    Assignee: Sk hynix Inc.
    Inventors: Young-Sun Sohn, Seung-Woo Jin, Min-Yong Lee, Kyoung-Bong Rouh