Patent ID: 7033938
Filing Date: 2006-04-25
Classification: C30B,H01L,H01S,Y10S

Abstract:
1. A method of making the active region of a long-wavelength light emitting device, the method comprising: providing an organometallic vapor phase epitaxy (OMVPE) reactor; placing in the reactor a substrate wafer capable of supporting growth of indium gallium arsenide nitride; supplying to the reactor a Group III–V precursor mixture comprising an arsenic precursor, a nitrogen precursor, a gallium precursor, an indium precursor and a carrier gas; adjusting the flow rate of the arsenic precursor to grow an InGaAsN material having an internal quantum efficiency of radiative recombination approaching 100%; and pressurizing the reactor to a sub-atmospheric elevated growth pressure no higher than that at which a layer of indium gallium arsenide nitride having a nitrogen fraction commensurate with light emission at a wavelength longer than 1.2 μm is deposited over the substrate wafer.