Patent ID: 6653163
Filing Date: 2003-11-25
Classification: H01L

Abstract:
A method of producing a device for emitting electromagnetic radiation, comprising:depositing a first layer including a first material with a first bandgap and having a refractive index n1 and with charge carriers of a first conductivity type on a substrate; depositing a second layer of a second material with a second bandgap on said first layer, said second bandgap being larger than said first bandgap; and depositing a third layer of substantially the same thickness as said first layer on said second layer, said third layer being provided with charge carriers of a third conductivity type, the total thickness of said first and said third layers having a value of about a predetermined wavelength of radiation emitted by said device divided by n1; while maintaining during said depositing at least one surface of said first layer and one surface of said third layer essentially parallel.