Patents by Inventor Chun-ying Song

Chun-ying Song 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: 6750072
    Abstract: The present invention relates to a method for micro-fabricating a pixelless thermal imaging device. The imaging device up-converts a sensed 2-dimensional M/FIR image into a 2-dimensional image in the NIR to visible spectrum in dependence thereupon. A plurality of layers forming an integrated QWIP-LED wafer are crystallographically grown on a surface of a first substrate. The layers comprise an etch stop layer, a bottom contact layer, a plurality of layers forming a QWIP and a LED, and a top contact layer. At the top of the QWIP-LED wafer an optical coupler such as a diffraction grating for coupling at least a portion of incident M/FIR light into modes having an electric field component perpendicular to quantum wells of the QWIP is provided. In following processing steps the first substrate and the etch stop layer are removed. Various different thermal imaging devices are manufactured by changing the order of manufacturing steps, omitting some steps or using different materials.
    Type: Grant
    Filed: April 7, 2003
    Date of Patent: June 15, 2004
    Assignee: National Research Council of Canada
    Inventors: Margaret Buchanan, Martin Byloos, Shen Chiu, Emmanuel Dupont, Mae Gao, Hui Chun Liu, Chun-ying Song
  • Publication number: 20030211648
    Abstract: The present invention relates to a method for micro-fabricating a pixelless thermal imaging device. The imaging device up-converts a sensed 2-dimensional M/FIR image into a 2-dimensional image in the NIR to visible spectrum in dependence thereupon. A plurality of layers forming an integrated QWIP-LED wafer are crystallographically grown on a surface of a first substrate. The layers comprise an etch stop layer, a bottom contact layer, a plurality of layers forming a QWIP and a LED, and a top contact layer. At the top of the QWIP-LED wafer an optical coupler such as a diffraction grating for coupling at least a portion of incident M/FIR light into modes having an electric field component perpendicular to quantum wells of the QWIP is provided. In following processing steps the first substrate and the etch stop layer are removed. Various different thermal imaging devices are manufactured by changing the order of manufacturing steps, omitting some steps or using different materials.
    Type: Application
    Filed: April 7, 2003
    Publication date: November 13, 2003
    Inventors: Margaret Buchanan, Martin Byloos, Shen Chiu, Emmanuel Dupont, Mae Gao, Hui Chun Liu, Chun-Ying Song
  • Patent number: 6576490
    Abstract: The present invention relates to a method for micro-fabricating a pixelless thermal imaging device. The imaging device up-converts a sensed 2-dimensional M/FIR image into a 2-dimensional image in the NIR to visible spectrum in dependence thereupon. A plurality of layers forming an integrated QWIP-LED wafer are crystallographically grown on a surface of a first substrate. The layers comprise an etch stop layer, a bottom contact layer, a plurality of layers forming a QWIP and a LED, and a top contact layer. At the top of the QWIP-LED wafer an optical coupler such as a diffraction grating for coupling at least a portion of incident M/FIR light into modes having an electric field component perpendicular to quantum wells of the QWIP is provided. In following processing steps the first substrate and the etch stop layer are removed. Various different thermal imaging devices are manufactured by changing the order of manufacturing steps, omitting some steps or using different materials.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: June 10, 2003
    Assignee: National Research Council of Canada
    Inventors: Margaret Buchanan, Martin Byloos, Shen Chiu, Emmanuel Dupont, Mae Gao, Hui Chun Liu, Chun-ying Song
  • Publication number: 20030092212
    Abstract: The present invention relates to a method for micro-fabricating a pixelless thermal imaging device. The imaging device up-converts a sensed 2-dimensional M/FIR image into a 2-dimensional image in the NIR to visible spectrum in dependence thereupon. A plurality of layers forming an integrated QWIP-LED wafer are crystallographically grown on a surface of a first substrate. The layers comprise an etch stop layer, a bottom contact layer, a plurality of layers forming a QWIP and a LED, and a top contact layer. At the top of the QWIP-LED wafer an optical coupler such as a diffraction grating for coupling at least a portion of incident M/FIR light into modes having an electric field component perpendicular to quantum wells of the QWIP is provided. In following processing steps the first substrate and the etch stop layer are removed. Various different thermal imaging devices are manufactured by changing the order of manufacturing steps, omitting some steps or using different materials.
    Type: Application
    Filed: December 14, 2001
    Publication date: May 15, 2003
    Inventors: Margaret Buchanan, Martin Byloos, Shen Chiu, Emmanuel Dupont, Mae Gao, Hui Chun Liu, Chun-Ying Song