Patents by Inventor Thomas David McCormack

Thomas David McCormack 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).

  • Light emitting diode
    Patent number: 7151282
    Abstract: A green LED has a substrate, a GaN heavily n-doped bottom confining layer, an active region, an upper GaN confinement layer, and a semi-transparent ohmic contact layer. The active region has less than or equal to three highly compressively strained quantum wells. The widths of the quantum wells is less than 3 nm. The active region arrangement provides a short free carrier life-time and hence an increase in the modulation bandwidth of the LED.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: December 19, 2006
    Assignee: Firecomms Limited
    Inventors: John Douglas Lambkin, Thomas David McCormack