Patents by Inventor Jonathan J. Wierer, Jr.

Jonathan J. Wierer, Jr. 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: 6521914
    Abstract: The present invention is an inverted III-nitride light-emitting device (LED) with enhanced total light generating capability. A large area device has an n-electrode that interposes the p-electrode metallization to provide low series resistance. The p-electrode metallization is opaque, highly reflective, and provides excellent current spreading. The p-electrode at the peak emission wavelength of the LED active region absorbs less than 25% of incident light per pass. A submount may be used to provide electrical and thermal connection between the LED die and the package. The submount material may be Si to provide electronic functionality such as voltage-compliance limiting operation. The entire device, including the LED-submount interface, is designed for low thermal resistance to allow for high current density operation. Finally, the device may include a high-refractive-index (n>1.8) superstrate.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: February 18, 2003
    Assignee: LumiLeds Lighting, U.S., LLC
    Inventors: Michael R Krames, Daniel A. Steigerwald, Fred A. Kish, Jr., Pradeep Rajkomar, Jonathan J. Wierer, Jr., Tun S Tan
  • Patent number: 6514782
    Abstract: The present invention is an inverted III-nitride light-emitting device (LED) with enhanced total light generating capability. A large area device has an n-electrode that interposes the p-electrode metallization to provide low series resistance. The p-electrode metallization is opaque, highly reflective, and provides excellent current spreading. The p-electrode at the peak emission wavelength of the LED active region absorbs less than 25% of incident light per pass. A submount may be used to provide electrical and thermal connection between the LED die and the package. The submount material may be Si to provide electronic functionality such as voltage-compliance limiting operation. The entire device, including the LED-submount interface, is designed for low thermal resistance to allow for high current density operation. Finally, the device may include a high-refractive-index (n>1.8) superstrate.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: February 4, 2003
    Assignee: LumiLeds Lighting, U.S., LLC
    Inventors: Jonathan J. Wierer, Jr., Michael R Krames, Daniel A. Steigerwald, Fred A. Kish, Jr., Pradeep Rajkomar
  • Patent number: 6486499
    Abstract: The present invention is an inverted III-nitride light-emitting device (LED) with enhanced total light generating capability. A large area device has an n-electrode that interposes the p-electrode metallization to provide low series resistance. The p-electrode metallization is opaque, highly reflective, and provides excellent current spreading. The p-electrode at the peak emission wavelength of the LED active region absorbs less than 25% of incident light per pass. A submount may be used to provide electrical and thermal connection between the LED die and the package. The submount material may be Si to provide electronic functionality such as voltage-compliance limiting operation. The entire device, including the LED-submount interface, is designed for low thermal resistance to allow for high current density operation. Finally, the device may include a high-refractive-index (n>1.8) superstrate.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: November 26, 2002
    Assignee: LumiLeds Lighting U.S., LLC
    Inventors: Michael R Krames, Daniel A. Steigerwald, Fred A. Kish, Jr., Pradeep Rajkomar, Jonathan J. Wierer, Jr., Tun S Tan