Patent ID: 11955582
Assignee: SEIKO EPSON CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 5:
6. A light emitting apparatus comprising:
a substrate;
a laminated structure provided at the substrate and including a plurality of columnar sections; and
an electrode provided on a side opposite the substrate with respect to the laminated structure and injecting current into the laminated structure,
wherein the columnar sections each include
an n-type first GaN layer,
a p-type second GaN layer, and
a light emitting layer provided between the n-type first GaN layer and the p-type second GaN layer,
the n-type first GaN layers are provided between the light emitting layers and the substrate,
the laminated structure includes a p-type first AlGaN layer, and
the p-type first AlGaN layer includes
a first section provided between the p-type second GaN layers of the columnar sections adjacent to each other, the first section directly contacting the light emitting layers of the columnar sections, and
a second section provided between the first section and the electrode and between the columnar sections and the electrode.