US 11,996,504 B2
Light-emitting device and method of manufacturing the same
Shoichi Kashihara, Tokushima (JP); Masanobu Sato, Tokushima (JP); and Toshimasa Amiya, Anan (JP)
Assigned to NICHIA CORPORATION, Anan (JP)
Filed by NICHIA CORPORATION, Anan (JP)
Filed on Feb. 22, 2023, as Appl. No. 18/112,916.
Application 17/181,780 is a division of application No. 16/262,284, filed on Jan. 30, 2019, granted, now 10,964,859, issued on Mar. 30, 2021.
Application 18/112,916 is a continuation of application No. 17/181,780, filed on Feb. 22, 2021, granted, now 11,621,379.
Claims priority of application No. 2018-014328 (JP), filed on Jan. 31, 2018.
Prior Publication US 2023/0207752 A1, Jun. 29, 2023
Int. Cl. H01L 33/00 (2010.01); H01L 25/075 (2006.01); H01L 33/48 (2010.01); H01L 33/50 (2010.01); H01L 33/54 (2010.01); H01L 33/56 (2010.01); H01L 33/30 (2010.01); H01L 33/62 (2010.01); H01L 33/64 (2010.01)
CPC H01L 33/54 (2013.01) [H01L 25/0753 (2013.01); H01L 33/486 (2013.01); H01L 33/505 (2013.01); H01L 33/508 (2013.01); H01L 33/56 (2013.01); H01L 33/30 (2013.01); H01L 33/62 (2013.01); H01L 33/647 (2013.01); H01L 2933/0041 (2013.01); H01L 2933/005 (2013.01); H01L 2933/0091 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method of manufacturing a light-emitting device, the method comprising:
providing a first intermediate product including:
a base member having a recess, and
a light-emitting element placed on or above an inner bottom surface of the base member;
injecting into the recess a resin including a light-diffusing agent that includes hollow particles to form a light-transmissive member in a convex shape with a thickness that gradually increases from a peripheral portion of the light-transmissive member toward a central portion of the light-transmissive member;
allowing the hollow particles to float up to a first surface of the injected light-transmissive member and to gather in the central region of the light-transmissive member; and
hardening the light-transmissive member to form the light-emitting device,
wherein, in a plan view, the central portion of the first surface of the light-transmissive member has irregularities formed by the light-diffusing agent and a peripheral region including the outer peripheral portion of the first surface of the light-transmissive member is smooth without the irregularities formed by the light-diffusing agent.