Semiconductor light emitting element with first and second electrode openings arranged at a constant distance

摘要

Disclosed is a semiconductor light emitting element (1) which is provided with: a laminated semiconductor layer which is formed on a substrate, and in which a first semiconductor layer having a first conductivity type, a light emitting layer, and a second semiconductor layer having a second conductivity type different from the first conductivity type; a first electrode (first electrode (170)) which is formed on a surface of the first semiconductor layer in the laminated semiconductor layer, and has a first opening (170a) used for electrical connection with an outside; and a second electrode (second electrode (180)) which is formed on a surface of the second semiconductor layer, and has a second opening (180a) used for electrical connection with the outside. The surface of the second semiconductor layer is exposed by cutting off a part of the laminated semiconductor layer. The first opening (170a) has, on the second opening (180a) side of the first opening (170a) in a planar view, an arc portion which is formed to keep approximately equal distance from an outer edge portion of the second opening (180). With such a semiconductor light emitting element, workability and heat dissipation effects in the FC (flip-chip bonding) mounting technology of the semiconductor light emitting element are improved.

主权项

1. A semiconductor light emitting element comprising:
a laminated semiconductor layer that is formed on a substrate and in which a first semiconductor layer having a first conductivity type, a light emitting layer, and a second semiconductor layer having a second conductivity type different from the first conductivity type are laminated; a first electrode that is formed on a surface of the first semiconductor layer in the laminated semiconductor layer, and that has a first opening used for electrical connection with an outside; a second electrode that is formed on a surface of the second semiconductor layer, and that has a second opening used for electrical connection with the outside, the surface of the second semiconductor layer being exposed by cutting off a part of the laminated semiconductor layer; and a protecting layer disposed on the laminated semiconductor layer, wherein, the first and second openings are formed in the protecting layer to expose the first and second electrodes, respectively, the first opening has a concave arc portion opposite a convex arc portion of the second opening, the arc portion of the first opening is formed to keep an approximately equal distance from an outer edge portion of the second opening in a planar view, and an area of the first opening is at least 30% of a surface area of the first electrode.