GaN-BASED SEMICONDUCTOR LIGHT-EMITTING ELEMENT AND METHOD FOR FABRICATING SAME


Ontology type: sgo:Patent     


Patent Info

DATE

2007-09-26T00:00

AUTHORS

OKUYAMA, Hiroyuki c/o SONY CORPORATION , BIWA, Goshi c/o SONY CORPORATION

ABSTRACT

A GaN-based semiconductor light-emitting element capable of suppressing the occurrence of piezoelectric spontaneous polarization in the thickness direction of an active layer and reducing the driving voltage of a light-emitting diode is provided. The GaN-based semiconductor light-emitting element has a structure with a first GaN-based compound semiconductor layer 21 having the top face parallel to the a-plane and having a first conductivity type, an active layer 22 having the top face parallel to the a-plane, a second GaN-based compound semiconductor layer 23 having the top face parallel to the a-plane and having a second conductivity type, and a contact layer 24 composed of a GaN-based compound semiconductor and having the top face parallel to the a-plane, stacked in that order. The GaN-based semiconductor light-emitting element further includes a first electrode 25 disposed on the first GaN-based compound semiconductor layer 21 and a second electrode 26 disposed on the contact layer 24. More... »

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