Patents by Inventor Lim Keun Hyuk

Lim Keun Hyuk 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).

  • CMOS image sensor and method for fabricating the same
    Patent number: 7645652
    Abstract: A CMOS image sensor and a method of fabricating the same are provided. The CMOS image sensor includes: a semiconductor substrate of a first conductivity type having a photodiode region and a transistor region defined therein; a gate electrode formed above the transistor region of the semiconductor substrate with a gate insulating layer interposed therebetween; a first impurity region formed of the first conductivity type in the semiconductor substrate below the gate electrode and having a higher concentration of first conductivity type ions than the semiconductor substrate; and a second impurity region formed of a second conductivity type in the photodiode region of the semiconductor substrate.
    Type: Grant
    Filed: August 21, 2006
    Date of Patent: January 12, 2010
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Lim Keun Hyuk