Patent ID: 7899101
Filing Date: 2011-03-01
Classification: H01L,H01S

Abstract:
1. A gallium nitride (GaN) type semiconductor light emitting device comprising: an active layer including at least one InGaN layer, the active layer having a thickness not greater than 0.1 micrometers; a first electrode electrically connected to the active layer via a first layer, the first layer having at least one layer including Al a second electrode electrically connected to the active layer via a second layer, the second layer having at least one layer including Al wherein a band gap energy of each of the first layer and the second layer is respectively greater than a band gap energy of the active layer, and the band gap energy of the first layer is less than a band gap energy of the second layer; wherein a difference between the band gap energy of the first layer and the band gap energy of the active layer is not less than one third of a difference between the band gap energy of the second layer and the band gap energy of the active layer.