US 11,990,573 B2
Method of manufacturing light emitting device having hollow particles
Shoichi Kashihara, Komatsushima (JP); and Masanobu Sato, Tokushima (JP)
Assigned to NICHIA CORPORATION, Anan (JP)
Filed by NICHIA CORPORATION, Anan (JP)
Filed on Apr. 29, 2022, as Appl. No. 17/733,380.
Application 17/733,380 is a continuation of application No. 16/772,847, granted, now 11,355,681, previously published as PCT/JP2018/044064, filed on Nov. 29, 2018.
Claims priority of application No. 2018-014385 (JP), filed on Jan. 31, 2018.
Prior Publication US 2022/0254966 A1, Aug. 11, 2022
Int. Cl. H01L 33/58 (2010.01); H01L 33/00 (2010.01); H01L 33/50 (2010.01); H01L 33/56 (2010.01)
CPC H01L 33/58 (2013.01) [H01L 33/005 (2013.01); H01L 33/50 (2013.01); H01L 33/56 (2013.01); H01L 2933/0058 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of manufacturing a light emitting device, comprising:
providing a first precursor including a base member including a recess having an inner bottom surface, and a light emitting element mounted on the inner bottom surface;
injecting into the recess a first light-transmissive member containing light diffusing particles including at least hollow particles;
floating up the hollow particles to a surface of the injected first light-transmissive member;
forming, in a plan view, irregular shapes attributed to the hollow particles at a central part of the surface of the first light-transmissive member and a region where the hollow particles are absent at a peripheral part of the surface of the first light-transmissive member;
curing the first light-transmissive member; and
covering the first light-transmissive member with a second light-transmissive member.