An electrode for a light-emitting semiconductor device includes a light-permeable electrode formed to come into contact with the surface of the semiconductor, and a wire-bonding electrode that is in electrical contact with the light-permeable electrode and is formed to come into partial contact with...http://www.google.de/patents/US7057210?utm_source=gb-gplus-sharePatent US7057210 - Electrode for light-emitting semiconductor devices and method of producing the electrode
