Patent ID: 8409897

Claim:
A production method of a red light emitting semiconductor device using GaN, InN, AlN or a mixed crystal composed of any two or more of them, wherein an active layer obtained by adding Eu or Pr to GaN, InN, AlN or a mixed crystal composed of any two or more of them so as to substitute Ga, In or Al in a reaction vessel without removing from the reaction vessel halfway using an organometallic vapor phase epitaxy method with an organometallic vapor phase epitaxy apparatus equipped with a piping valve of high temperature special specification having heat resistant temperature of higher than 100° C. under a temperature condition of 900 to 1100° C. thereby keeping the cylinder temperature of organic raw materials at high temperature is formed in a series of formation steps including formation of the p-type layer and the n-type layer at a growth speed of 0.1 to 4 μm/h without causing damage to the crystal surfaces, so as to produce a red light emitting semiconductor device having no interface state between the layers, and enabling carriers being implanted efficiently and operation at low voltage.