Patent ID: 6734035
Filing Date: 2004-05-11
Classification: B82Y,H01L,H01S

Abstract:
A method for manufacturing a light-emitting device using group III nitride group compound semiconductor having a quantum well structure, comprising steps of:a first step of forming any well layer of a multiple quantum well (MQW) structure having a plurality of well layers and barrier layers; a second step of forming a cap layer on an uppermost well layer formed latest at said first step, which has almost the same compositions as said uppermost well layer and comprises group III nitride group compound semiconductor, around the temperature at which said uppermost well layer is formed and at growth rate v (>u) which is faster than crystal growth rate u of said uppermost layer; a third step of eliminating a portion or all of said cap layer by using thermal cracking during a temperature raising process where the temperature is raised to a temperature for forming next barrier layer of group III nitride group compound semiconductor; and a fourth step of forming said barrier layer of group III nitride group compound semiconductor.