Patent ID: 6057565
Filing Date: 2000-05-02
Classification: H01L

Abstract:
A semiconductor light emitting device, comprising:a light emitting layer formed of a gallium nitride based semiconductor;a non-stoichiometric compound layer formed of the gallium nitride based semiconductor having a composition offset away from a stoichiometric composition thereof; andat least one electrode,wherein said non-stoichiometric compound layer includes a compound layer satisfying the following condition:(x.sub.1 +x.sub.2 +x.sub.3).noteq.yin a composition formula expressed by:In.sub.x1 G.sub.x2 Al.sub.x3 N.sub.y M.sub.zwhere M denotes an additive element to the gallium nitride based semiconductor and x.sub.1 .gtoreq.0, x.sub.2 .gtoreq.0, x.sub.3 .gtoreq.0, y>0, and z.gtoreq.0, andsaid compound layer comprising at least one of a compound layer in which a quotient obtained by dividing an absolute value of (x.sub.1 +x.sub.2 +x.sub.3 -y) by y is greater than 0.0001 and a compound layer in which a quotient obtained by dividing an absolute value of (x.sub.1 +x.sub.2 +x.sub.3 -y-z) by (y+z) is greater than 0.0001.