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公开(公告)号：US11264542B2
公开(公告)日：2022-03-01
申请号：US15965415
申请日：2018-04-27
申请人： NICHIA CORPORATION
IPC分类号： H01L33/00 , H01L33/50 , H01L33/36 , H01L33/56 , H01L33/62 , H01L33/34 , H01L33/60 , H01L33/48
摘要： A light-emitting device includes a substrate comprising a base member, a first wiring, a second wiring, and a via hole; at least one light-emitting element electrically connected to and disposed on the first wiring; and a covering member having light reflectivity and covering a lateral surface of the light-emitting element and a front surface of the substrate. The base member defines a plurality of depressed portions separated from the via hole in a front view and opening on a back surface and a bottom surface of the base member. The substrate includes a third wiring covering at least one of inner walls of the plurality of depressed portions and electrically connected to the second wiring. A depth of each of the plurality of depressed portions defined from the back surface toward the front surface is larger on a bottom surface side than on an upper surface side of the base member.
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公开(公告)号：US11948925B2
公开(公告)日：2024-04-02
申请号：US17938017
申请日：2022-10-04
申请人： NICHIA CORPORATION
CPC分类号： H01L25/13 , H01L33/52 , H01L33/62 , H01L2933/0066
摘要： A light emitting device includes a substrate including first, second, third and fourth wiring portions on a top surface of a base member and arrayed in a first direction, and a connection wiring portion connecting the second and third wiring portions. The connection wiring portion includes first and second connection ends respectively connected with the second and third wiring portions, and a connection central portion connecting the first and second connection ends and having a maximum width in a second direction different from each of a maximum width of the first connection end and a maximum width of the second connection end. In the second direction, at least a part of the connection wiring portion has a width narrower than each of a maximum width of the second wiring portion and a maximum width of the third wiring portion.
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公开(公告)号：US11411144B2
公开(公告)日：2022-08-09
申请号：US17022933
申请日：2020-09-16
申请人： NICHIA CORPORATION
IPC分类号： H01L33/00 , H01L33/50 , H01L33/36 , H01L33/56 , H01L33/62 , H01L33/34 , H01L33/60 , H01L33/48
摘要： A light-emitting device includes a substrate comprising a base member, a first wiring, a second wiring, and a via hole; at least one light-emitting element electrically connected to and disposed on the first wiring; and a covering member having light reflectivity and covering a lateral surface of the light-emitting element and a front surface of the substrate. The base member defines a plurality of depressed portions separated from the via hole in a front view and opening on a back surface and a bottom surface of the base member. The substrate includes a third wiring covering at least one of inner walls of the plurality of depressed portions and electrically connected to the second wiring. A depth of each of the plurality of depressed portions defined from the back surface toward the front surface is larger on a bottom surface side than on an upper surface side of the base member.
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公开(公告)号：US11227979B2
公开(公告)日：2022-01-18
申请号：US15965415
申请日：2018-04-27
申请人： NICHIA CORPORATION
IPC分类号： H01L33/00 , H01L33/50 , H01L33/36 , H01L33/56 , H01L33/62 , H01L33/34 , H01L33/60 , H01L33/48
摘要： A light-emitting device includes a substrate comprising a base member, a first wiring, a second wiring, and a via hole; at least one light-emitting element electrically connected to and disposed on the first wiring; and a covering member having light reflectivity and covering a lateral surface of the light-emitting element and a front surface of the substrate. The base member defines a plurality of depressed portions separated from the via hole in a front view and opening on a back surface and a bottom surface of the base member. The substrate includes a third wiring covering at least one of inner walls of the plurality of depressed portions and electrically connected to the second wiring. A depth of each of the plurality of depressed portions defined from the back surface toward the front surface is larger on a bottom surface side than on an upper surface side of the base member.
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公开(公告)号：US11652192B2
公开(公告)日：2023-05-16
申请号：US17179881
申请日：2021-02-19
申请人： NICHIA CORPORATION
摘要： A light-emitting device includes a substrate comprising a base member, a first wiring, a second wiring, and a via hole; at least one light-emitting element electrically connected to and disposed on the first wiring; and a covering member having light reflectivity and covering a lateral surface of the light-emitting element and a front surface of the substrate. The base member defines a plurality of depressed portions separated from the via hole in a front view and opening on a back surface and a bottom surface of the base member. The substrate includes a third wiring covering at least one of inner walls of the plurality of depressed portions and electrically connected to the second wiring. A depth of each of the plurality of depressed portions defined from the back surface toward the front surface is larger on a bottom surface side than on an upper surface side of the base member.
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公开(公告)号：US11195977B2
公开(公告)日：2021-12-07
申请号：US17020280
申请日：2020-09-14
申请人： NICHIA CORPORATION
摘要： A light emitting device includes a light emitting element including a first surface; a light guide member covering at least a part of a lateral surface of the light emitting element; a first wavelength conversion member covering the first surface and including a first wavelength conversion particles; and a reflective member being in contact with the light emitting element. The first wavelength conversion member has a thickness of 60 μm or more and 120 μm or less. The first wavelength conversion particles have an average particle size of 4 μm or longer and 12 μm or smaller; the first wavelength conversion particles have a central particle size of 4 μm or longer and 12 μm or smaller. A weight ratio of the first wavelength conversion particles is 60% by weight or more and 75% by weight or less with respect to the total weight of the first wavelength conversion member.
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公开(公告)号：US10553568B2
公开(公告)日：2020-02-04
申请号：US15081359
申请日：2016-03-25
申请人： NICHIA CORPORATION
发明人： Tetsuya Ishikawa
IPC分类号： H01L25/075 , H01L33/48 , H01L33/50
摘要： A light emitting device of a side-surface light emission type includes a package defining a recess and having a shape elongated in a lateral direction, the package including a pair of lead electrodes arranged next to each other in the lateral direction and forming main portions of a bottom of the recess, and a molded body integrally formed with the pair of lead electrodes and defining sidewalls of the recess, and a light emitting element disposed on at least one of the pair of lead electrodes at the bottom of the recess. The molded body has a reinforcing portion connecting between two sidewalls of the recess opposite to each other in a longitudinal direction. The reinforcing portion is made of two end portions respectively connected to the two sidewalls, and an intermediate portion provided between the two end portions.
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公开(公告)号：US11664356B2
公开(公告)日：2023-05-30
申请号：US17209015
申请日：2021-03-22
申请人： NICHIA CORPORATION
IPC分类号： H01L25/075 , H01L33/58 , H01L33/54 , F21V8/00 , H01L33/50
CPC分类号： H01L25/0753 , H01L33/54 , H01L33/58 , G02B6/0073 , H01L33/502 , H01L33/505 , H01L2933/0091
摘要： A light emitting device includes light emitting elements, light-transmissive members, a covering member, at least one first protrusion, and two second protrusions. The light emitting elements are aligned in a first direction. The light-transmissive members are respectively disposed on upper surfaces of the light emitting elements. The covering member includes at least one first covering portion and two second covering portions. The at least one first covering portion is arranged between adjacent ones of the light-transmissive members, and the second covering portions are arranged at distal ends of the light emitting device in the first direction with the light-transmissive members being arranged between the second covering portions. The at least one first protrusion is arranged on an upper surface of the at least one first covering portion and being spaced apart from the light-transmissive members. The second protrusions respectively arranged on upper surfaces of the second covering portions.
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公开(公告)号：US11495587B2
公开(公告)日：2022-11-08
申请号：US16584092
申请日：2019-09-26
申请人： NICHIA CORPORATION
摘要： A light emitting device includes a substrate including first, second, third and fourth wiring portions on a top surface of a base member and arrayed in a first direction, and a connection wiring portion connecting the second and third wiring portions. The connection wiring portion includes first and second connection ends respectively connected with the second and third wiring portions, and a connection central portion connecting the first and second connection ends and having a maximum width in a second direction different from each of a maximum width of the first connection end and a maximum width of the second connection end. In the second direction, at least a part of the connection wiring portion has a width narrower than each of a maximum width of the second wiring portion and a maximum width of the third wiring portion.
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