US 9,812,622 B2
Light emitting element with light transmissive substrate having recess in cross-sectional plane
Yukitoshi Marutani, Anan (JP)
Assigned to Nichia Corporation, Anan-shi (JP)
Filed by NICHIA CORPORATION, Anan-shi, Tokushima (JP)
Filed on May 12, 2016, as Appl. No. 15/153,465.
Claims priority of application No. 2015-097921 (JP), filed on May 13, 2015.
Prior Publication US 2016/0336496 A1, Nov. 17, 2016
Int. Cl. H01L 29/22 (2006.01); H01L 33/60 (2010.01); F21V 8/00 (2006.01); H01L 33/58 (2010.01); H01L 33/46 (2010.01)
CPC H01L 33/60 (2013.01) [G02B 6/0006 (2013.01); G02B 6/0073 (2013.01); H01L 33/58 (2013.01); H01L 33/46 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A light-emitting element comprising:
a light transmissive substrate having a first main surface, a second main surface opposite to the first main surface, a first lateral surface adjacent to the first main surface and the second main surface, a second lateral surface opposite to the first lateral surface, a third lateral surface adjacent to the second lateral surface, and a fourth lateral surface opposite to the third lateral surface;
a semiconductor layered body formed on the first main surface of the light transmissive substrate;
a first light reflecting member covering the first lateral surface, the second lateral surface, the fourth lateral surface, and the second main surface of the light transmissive substrate; and
a second light reflecting member covering a surface of the semiconductor layered body that is opposite from a surface on which the light transmissive substrate is disposed, wherein,
in the light transmissive substrate, a cross-sectional plane of the light transmissive substrate that is perpendicular to the first main surface and intersects with the third lateral surface and the fourth lateral surface has a first concave figure having a first recess, the deepest portion of the first recess is arranged on an inner side of an outer periphery of the semiconductor layered body, and the third lateral surface includes one or more surfaces defining the first recess.