A flip chip structure of a light-emitting device comprising a UV/blue light emitting diode (LED) is disclosed. The flip chip structure is optimized to produce unique light focusing and phosphor illumination out the bottom of the structure. The flip chip structure includes a substrate, a gallium nitride...http://www.google.de/patents/US6483196?utm_source=gb-gplus-sharePatent US6483196 - Flip chip led apparatus