Patent ID: 6403983
Filing Date: 2002-06-11
Classification: H01L

Abstract:
A quantum well type light-emitting diode having a light-emitting portion and formed of a plurality of semiconductor layers including at least one light-generating layer of a quantum well structure configured to generate a light, and a pair of reflecting layers between which said at least one light-generating layer is interposed for reflecting said light generated by said at least one light-generating layer, so that said pair of reflecting layers functions as a light resonator, said quantum well type light-emitting diode emitting said light generated by said light-generating layer from said light-emitting portion, wherein the improvement comprises:each of said at least one light-generating layer having a lattice constant which is smaller than that of at least two semiconductor layers of said plurality of semiconductor layers, said at least two semiconductor layers are located adjacent to and on opposite sides of said at least one light-generating layers; each of said at least one light-generating layer being a GaInP compound semiconductor monocrystalline layer while each of said at least two semiconductor layers is a GaAIInP compound semiconductor monocrystalline layer; and each of said at least one light-generating layer being given a compressive strain within a range of 0.4-0.5% and thereby compressed in a direction of thickness thereof.