Patents by Inventor Wenyu Gao

Wenyu Gao 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).

  • Patent number: 7833817
    Abstract: A method for fabricating an image sensor includes following steps. First, a substrate having semiconductor devices formed thereon is provided. Interlayer insulating films and Interlayer conductive films are formed on the substrate alternately, wherein the interlayer conductive films are electrically connected to the semiconductor devices. Next, isolated photo-diodes are formed on a topmost layer of the interlayer conductive films, wherein one electrode of the isolated photo-diodes is electrically connected to a topmost layer of the interlayer conductive films. A top insulating layer is formed on the topmost layer of the interlayer conductive films, wherein the isolated photo-diodes are covered by the top insulating layer. A top conductive layer is formed in the top insulating layer, wherein the top conductive layer is electrically connected to another electrode of the isolated photo-diodes.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: November 16, 2010
    Assignee: Hejian Technology (Suzhou) Co., Ltd.
    Inventors: Wenyu Gao, Cedric Lee
  • Publication number: 20090068786
    Abstract: A method for fabricating an image sensor includes following steps. First, a substrate having semiconductor devices formed thereon is provided. Interlayer insulating films and Interlayer conductive films are formed on the substrate alternately, wherein the interlayer conductive films are electrically connected to the semiconductor devices. Next, isolated photo-diodes are formed on a topmost layer of the interlayer conductive films, wherein one electrode of the isolated photo-diodes is electrically connected to a topmost layer of the interlayer conductive films. A top insulating layer is formed on the topmost layer of the interlayer conductive films, wherein the isolated photo-diodes are covered by the top insulating layer. A top conductive layer is formed in the top insulating layer, wherein the top conductive layer is electrically connected to another electrode of the isolated photo-diodes.
    Type: Application
    Filed: November 10, 2008
    Publication date: March 12, 2009
    Applicant: HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.
    Inventors: Wenyu Gao, Cedric Lee
  • Patent number: 7482646
    Abstract: An image sensor including a substrate having a plurality of semiconductor devices formed thereon, an interconnection layer disposed on the substrate, and a plurality of isolated photo-diodes embedded in the interconnection layer is provided. The isolated photo-diodes are located above the semiconductor devices and electrically connected to the semiconductor devices through the interconnection layer. In the above-mentioned image sensor, thickness of the interconnection layer is not limited so as to facilitate fabrication of the SOC CMOS image sensor. In addition, the image sensor is advantageous in relatively high fill-factor, layout area saving and easy being implanted. Furthermore, a method for fabricating the image mentioned above is also provided.
    Type: Grant
    Filed: October 18, 2006
    Date of Patent: January 27, 2009
    Assignee: Hejian Technology (Suzhou) Co., Ltd.
    Inventors: Wenyu Gao, Cedric Lee
  • Publication number: 20080093695
    Abstract: An image sensor including a substrate having a plurality of semiconductor devices formed thereon, an interconnection layer disposed on the substrate, and a plurality of isolated photo-diodes embedded in the interconnection layer is provided. The isolated photo-diodes are located above the semiconductor devices and electrically connected to the semiconductor devices through the interconnection layer. In the above-mentioned image sensor, thickness of the interconnection layer is not limited so as to facilitate fabrication of the SOC CMOS image sensor. In addition, the image sensor is advantageous in relatively high fill-factor, layout area saving and easy being implanted. Furthermore, a method for fabricating the image mentioned above is also provided.
    Type: Application
    Filed: October 18, 2006
    Publication date: April 24, 2008
    Applicant: HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.
    Inventors: Wenyu Gao, Cedric Lee