Patents by Inventor Cho Eun Sang

Cho Eun Sang 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 with a microlens and method for fabricating the same
    Patent number: 7659565
    Abstract: A CMOS image sensor and a method for fabricating the same are provided. A CMOS image sensor includes: a plurality of photodiodes a predetermined distance apart on a semiconductor substrate; an insulation layer on an entire surface of the semiconductor substrate; a passivation layer on the insulation layer; a plurality of color filters on the passivation layer corresponding to the photodiodes; a planarization layer on an entire surface of the semiconductor substrate including the color filters; and a microlens on the planarization layer corresponding to each of the color filters and having a bottom diameter of 2.5 to 3.0 ?m.
    Type: Grant
    Filed: August 14, 2006
    Date of Patent: February 9, 2010
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Cho Eun Sang