公开(公告)号：US10833230B2

公开(公告)日：2020-11-10

申请号：US16793018

申请日：2020-02-18

Applicant: NICHIA CORPORATION

Inventor： Kenichi Aoyagi ,  Takashi Kaide ,  Takuya Nakabayashi ,  Tetsuya Ishikawa ,  Shoji Hosokawa

IPC: H01L33/50 ,  C09K11/77 ,  C09K11/08

Abstract: A wavelength converting member comprising a first wavelength converting layer containing: a first fluorescent material having a light emission peak wavelength in a range of 620 nm or more and 660 nm or less; a second fluorescent material having a light emission peak wavelength in a range of 510 nm or more and 560 nm or less; and a resin, wherein the average particle diameter, as measured according to a Fisher Sub-Sieve Sizer method, of the first fluorescent material is in a range of 2 μm or more and 30 μm or less, wherein the second fluorescent material comprises a β-SiAlON fluorescent material, the circularity of the β-SiAlON fluorescent material is 0.7 or more, and the volume average particle diameter, as measured according to a laser diffraction scattering particle size distribution measuring method, of the β-SiAlON fluorescent material is in a range of 2 μm or more and 30 μm or less, and wherein the thickness of the first wavelength converting layer is in a range of 50 μm or more and 200 μm or less.

公开(公告)号：US10825802B2

公开(公告)日：2020-11-03

申请号：US16360750

申请日：2019-03-21

Applicant: NICHIA CORPORATION

Inventor： Takuya Nakabayashi ,  Yukiko Yokote

IPC: H01L25/075 ,  H01L33/62 ,  H01L33/54 ,  H01L33/50 ,  H01L33/48 ,  H01L33/64

Abstract: A light emitting device includes: a substrate including a base member including an upper surface, a lower surface and one or more lateral surfaces, and defining a recess that is opened at the upper surface and the lateral surfaces and surrounds an outer perimeter of the upper surface; a first light emitting element; a second light emitting element; a light guide member covering the first and the second light emitting elements and the upper surface of the base member; and a first reflective member having a closed-ring shape surrounding the upper surface of the base member and the light guide member, a portion of the first reflective member being located in the recess. At least one of the lateral surfaces of the base member and corresponding at least one of one or more outer lateral surfaces of the first reflective member are in the same plane.

公开(公告)号：US10804442B2

公开(公告)日：2020-10-13

申请号：US16257714

申请日：2019-01-25

Applicant: NICHIA CORPORATION

Inventor： Takuya Nakabayashi ,  Tetsuya Ishikawa

IPC: H01L33/50 ,  H01L33/60

Abstract: 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.

公开(公告)号：US10608149B2

公开(公告)日：2020-03-31

申请号：US16369046

申请日：2019-03-29

Applicant: NICHIA CORPORATION

Inventor： Kenichi Aoyagi ,  Takashi Kaide ,  Takuya Nakabayashi ,  Tetsuya Ishikawa ,  Shoji Hosokawa

IPC: H01L33/50 ,  C09K11/77 ,  C09K11/08

Abstract: A wavelength converting member comprising a first wavelength converting layer containing: a first fluorescent material having a light emission peak wavelength in a range of 620 nm or more and 660 nm or less; a second fluorescent material having a light emission peak wavelength in a range of 510 nm or more and 560 nm or less; and a resin, wherein the average particle diameter, as measured according to a Fisher Sub-Sieve Sizer method, of the first fluorescent material is in a range of 2 μm or more and 30 μm or less, wherein the second fluorescent material comprises a β-SiAlON fluorescent material, the circularity of the β-SiAlON fluorescent material is 0.7 or more, and the volume average particle diameter, as measured according to a laser diffraction scattering particle size distribution measuring method, of the β-SiAlON fluorescent material is in a range of 2 μm or more and 30 μm or less, and wherein the thickness of the first wavelength converting layer is in a range of 50 μm or more and 200 μm or less.

公开(公告)号：US10305011B2

公开(公告)日：2019-05-28

申请号：US15968806

申请日：2018-05-02

Applicant: NICHIA CORPORATION

Inventor： Shimpei Sasaoka ,  Takuya Nakabayashi

IPC: H01L33/00 ,  H01L33/62 ,  H01L25/13 ,  H01L25/075 ,  H01L33/48 ,  H01L27/15 ,  H01L23/00

Abstract: A light emitting apparatus includes a package having a long-length direction and a short-length direction perpendicular to the long-length direction as viewed in plan view. The package includes first and second leadframes and a resin portion. The first leadframe has a first leadframe main portion and a first leadframe extension portion which has narrower width than that of the first leadframe main portion. The second leadframe has a second leadframe main portion and a second leadframe extension portion which has narrower width than that of the second leadframe main portion. An inclined portion is formed between the first leadframe and the second leadframe as viewed in plan view. An upper end of the inclined portion is shifted from a lower end of the inclined portion.

公开(公告)号：US10256386B2

公开(公告)日：2019-04-09

申请号：US15657354

申请日：2017-07-24

Applicant: NICHIA CORPORATION

Inventor： Takuya Nakabayashi

IPC: H01L33/62 ,  H01L33/38 ,  H01L25/075 ,  H05K1/11 ,  B60Q1/14 ,  B60Q1/16 ,  H01L33/08 ,  H01L33/10 ,  H01L33/54 ,  F21S41/143 ,  F21S41/14 ,  F21S41/663 ,  H05K1/02 ,  F21Y105/12 ,  F21Y105/10

Abstract: A light emitting device includes a substrate, a plurality of first wiring members, a plurality of second wiring members and a plurality of light emitting elements. The first wiring members extend in a first direction. The second wiring members extend in a second direction. Each of the second wiring members is segmented into a plurality of second wiring portions. The light emitting elements are disposed along the second direction. A first electrode of the light emitting element is connected to a corresponding one of the first wiring members. A second electrode of the light emitting element has a first connection part and a second connection part that is linked to the first connection part. The first connection part and the second connection part are connected to a corresponding one of the second wiring members and bridge at least two of the segmented second wiring portions in the second direction.

公开(公告)号：US10193036B2

公开(公告)日：2019-01-29

申请号：US15879812

申请日：2018-01-25

Applicant: NICHIA CORPORATION

Inventor： Suguru Beppu ,  Yoichi Bando ,  Hiroto Tamaki ,  Takuya Nakabayashi

IPC: H01L33/60 ,  H01L33/50

Abstract: A light emitting device includes a semiconductor light emitting element; and a light reflective member having a multilayer structure and covering the side faces of the semiconductor light emitting element. The light reflective member includes: a first layer disposed on an inner, semiconductor light emitting element side, the first layer comprising a light-transmissive resin containing a light reflective substance, and a second layer disposed in contact with an outer side of the first layer, the second layer comprising a light-transmissive resin containing the light reflective substance at a lower content than that of the first layer.

公开(公告)号：US09887335B2

公开(公告)日：2018-02-06

申请号：US15494863

申请日：2017-04-24

Applicant: NICHIA CORPORATION

Inventor： Takuya Nakabayashi ,  Yoshitaka Bando ,  Hiroto Tamaki

IPC: H01L23/495 ,  H01L33/62 ,  H01L33/48

CPC classification number: H01L23/49537 ,  H01L21/4828 ,  H01L23/49503 ,  H01L23/49544 ,  H01L23/49551 ,  H01L23/49562 ,  H01L23/49582 ,  H01L33/486 ,  H01L33/62 ,  H01L2924/0002 ,  H01L2933/0066 ,  H01L2924/00

Abstract: A light emitting device includes a resin package and a light emitting element. The resin package has a cavity. The resin package includes first and second lead portions and a resin member. The first lead portion includes a first lead side surface and a lead recess portion that extends from the first lead side surface in a direction away from the second lead portion, with a part of the resin member being arranged within the lead recess portion. The light emitting element includes first and second electrodes that respectively face the first and second lead portions. The first electrode includes a first electrode side surface and an electrode recess portion that extends from the first electrode side surface in a direction away from the second electrode. The electrode recess portion is arranged at a position overlapping the lead recess portion in a plan view.

公开(公告)号：US09761753B2

公开(公告)日：2017-09-12

申请号：US15399897

申请日：2017-01-06

Applicant: NICHIA CORPORATION

Inventor： Takuya Nakabayashi

IPC: H01L33/48 ,  H01L33/50 ,  H01L33/52 ,  H01L33/00 ,  H01L33/60 ,  H01L33/56

CPC classification number: H01L33/005 ,  H01L33/0095 ,  H01L33/46 ,  H01L33/486 ,  H01L33/502 ,  H01L33/508 ,  H01L33/56 ,  H01L33/60 ,  H01L2933/0033 ,  H01L2933/0041 ,  H01L2933/005

Abstract: A method for manufacturing a light-emitting device includes providing a soluble member to cover at least one lateral surface of a light-emitting element. The soluble member includes a material soluble in a first solvent. A light-shielding member is provided to cover at least one lateral surface of the soluble member. The light-shielding member includes a light-shielding resin less soluble in the first solvent than the soluble member. The soluble member is removed with the first solvent. A first light-transmissive member is provided in a space formed by removing the soluble member.

公开(公告)号：US09711691B2

公开(公告)日：2017-07-18

申请号：US15296519

申请日：2016-10-18

Applicant: NICHIA CORPORATION

Inventor： Hiroto Tamaki ,  Takuya Nakabayashi

IPC: H01L33/00 ,  H01L33/48 ,  H01L33/60 ,  H01L33/50 ,  H01L33/62 ,  H01L33/56 ,  H01L23/00

CPC classification number: H01L33/486 ,  H01L24/97 ,  H01L33/50 ,  H01L33/507 ,  H01L33/56 ,  H01L33/60 ,  H01L33/62 ,  H01L2224/16225

Abstract: A light emitting device has a base body equipped with a base material and a pair of connection terminals disposed from a first main face to a second main face that is on the opposite side from the first main face; a plurality of light emitting elements connected to the connection terminals on the first main face; and a light reflecting member that covers the side faces of the light emitting elements, the base material having a protruding component on the second main face, the protruding component being one of a heat releasing terminal, a reinforcement terminal, and an insulating film, and the connection terminals being disposed on the first main face from the second main face on both sides of the protruding component, and being partly exposed from the light reflecting member on both sides of the first main face.