US 12,336,347 B2
Light emitting device
Yuta Horikawa, Anan (JP); Akihiro Fujioka, Tokushima (JP); and Kazuya Matsuda, Anan (JP)
Assigned to NICHIA CORPORATION, Anan-shi (JP)
Filed by NICHIA CORPORATION, Anan (JP)
Filed on May 26, 2022, as Appl. No. 17/804,290.
Claims priority of application No. 2021-088328 (JP), filed on May 26, 2021.
Prior Publication US 2022/0384694 A1, Dec. 1, 2022
Int. Cl. H01L 25/075 (2006.01); H10H 20/851 (2025.01); H10H 20/854 (2025.01); H10H 20/857 (2025.01); H10H 20/825 (2025.01); H10H 20/858 (2025.01)
CPC H10H 20/854 (2025.01) [H01L 25/0753 (2013.01); H10H 20/8512 (2025.01); H10H 20/857 (2025.01); H10H 20/825 (2025.01); H10H 20/8583 (2025.01)] 20 Claims
OG exemplary drawing
 
1. A light emitting device comprising:
a resin package including a first lead, a second lead, and a resin portion holding the first lead and the second lead;
at least one light emitting element mounted on the resin package; and
a covering member covering at least a portion of an upper surface of the first lead, at least a portion of an upper surface of the second lead, and at least a portion of an upper surface of the resin portion, wherein
the first lead includes a first portion and a first extended portion extending in a first direction from the first portion toward the second lead,
the second lead includes a second portion overlapping the first portion in the first direction, and a second extended portion extending in the first direction from the second portion toward the first lead and overlapping the first extended portion in a second direction orthogonal to the first direction,
the resin portion includes, between the first lead and the second lead, at least one resin recess recessed lower than the upper surface of the first lead,
at least a portion of the resin recess is located between the first portion and the second portion in the first direction, and is located between the first extended portion and the second extended portion in the second direction,
at least a portion of the resin recess is covered by the covering member, and
a maximum length of the resin recess in the first direction is longer than a maximum length of the resin recess in the second direction.