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公开(公告)号：US10026718B2
公开(公告)日：2018-07-17
申请号：US15853852
申请日：2017-12-25
Applicant: NICHIA CORPORATION
Inventor： Takuya Nakabayashi , Tadaaki Ikeda
IPC: H01L29/18 , H01L33/00 , H01L25/075 , H01L33/56 , H01L33/54 , H01L33/62 , H01L33/60 , H01L33/48 , H01L33/50
Abstract: A light emitting device includes a first light emitting element, a second light emitting element, a substrate, and a light reflective covering member. A first land is provided in a substrate front surface and includes a first terminal and a second terminal. A second land is provided in the substrate front surface and includes a third terminal and a fourth terminal. An intermediate wiring is provided between the first land and the second land in the substrate front surface. A first wiring is provided in a substrate back surface and is electrically connected to the first terminal through a first through-via. A second wiring is provided in the substrate back surface and is electrically connected to the fourth terminal through a second through-via. A third wiring is provided in the substrate back surface and is electrically connected to the second terminal and the third terminal through a third through-via.
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公开(公告)号：US20180122783A1
公开(公告)日：2018-05-03
申请号：US15853852
申请日：2017-12-25
Applicant: NICHIA CORPORATION
Inventor： Takuya NAKABAYASHI , Tadaaki Ikeda
CPC classification number: H01L25/0753 , H01L33/483 , H01L33/502 , H01L33/504 , H01L33/54 , H01L33/56 , H01L33/60 , H01L33/62
Abstract: A light emitting device includes a first light emitting element, a second light emitting element, a substrate, and a light reflective covering member. A first land is provided in a substrate front surface and includes a first terminal and a second terminal. A second land is provided in the substrate front surface and includes a third terminal and a fourth terminal. An intermediate wiring is provided between the first land and the second land in the substrate front surface. A first wiring is provided in a substrate back surface and is electrically connected to the first terminal through a first through-via. A second wiring is provided in the substrate back surface and is electrically connected to the fourth terminal through a second through-via. A third wiring is provided in the substrate back surface and is electrically connected to the second terminal and the third terminal through a third through-via.
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公开(公告)号：US20180097150A1
公开(公告)日：2018-04-05
申请号：US15833644
申请日：2017-12-06
Applicant: NICHIA CORPORATION
Inventor： Tadaaki Ikeda , Masaki Hayashi , Koji Abe , Kimihiro Miyamoto
CPC classification number: H01L33/465 , H01L33/44 , H01L33/483 , H01L33/486 , H01L33/60 , H01L33/62 , H01L2224/48227 , H01L2224/48237 , H01L2224/8592 , H01L2224/97 , H01L2933/0025 , H01L2933/0033 , H01L2933/0058 , H01L2933/0066
Abstract: A method of manufacturing a package, the method comprising the steps of: preparing a resin compact having a recess, and including a pair of leads arranged at a bottom surface of the recess, a first resin body forming a lateral wall of the recess, and a second resin body arranged between the pair of leads; forming a reflective film entirely on at least the bottom surface of the recess and an inner surface of the lateral wall of the recess; and removing the reflective film formed on the pair of leads in the recess in the resin compact on which the reflective film has been formed.
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公开(公告)号：US09887181B2
公开(公告)日：2018-02-06
申请号：US15480460
申请日：2017-04-06
Applicant: NICHIA CORPORATION
Inventor： Takuya Nakabayashi , Tadaaki Ikeda
CPC classification number: H01L25/0753 , H01L33/483 , H01L33/502 , H01L33/504 , H01L33/54 , H01L33/56 , H01L33/60 , H01L33/62
Abstract: A light emitting device includes a first light emitting element having a first front surface and a first lateral surface, and a second light emitting element having a second front surface and a second lateral surface. A substrate includes a substrate front surface in which an intermediate wiring is provided. The light reflective covering member is provided on the substrate front surface to cover the first lateral surface and the second lateral surface. The light reflective covering member includes an external surface opposite to a substrate front surface in the front-back direction and a first recess having a recess opening on the external surface and a recess bottom opposite to the recess opening in the front-back direction. The recess bottom is positioned between the intermediate wiring and both of the first front surface and the second front surface in the front-back direction.
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公开(公告)号：US11038089B2
公开(公告)日：2021-06-15
申请号：US16898388
申请日：2020-06-10
Applicant: NICHIA CORPORATION
Inventor： Tadaaki Ikeda , Takuya Nakabayashi
IPC: H01L33/50 , C09K11/02 , C09K11/61 , C08K3/34 , C09K11/08 , C09K11/77 , H01L33/56 , H01L33/60 , H01L33/46
Abstract: A light emitting device is provided. The light emitting device includes a light emitting element, which emits blue light, and a light transmissive member having a first principal face bonded to the light emitting element and a second principal face opposite the first principal face. The light transmissive member has a light transmissive base material and wavelength conversion substances, which are contained in the base material and which absorb the light from the light emitting element and emit light. The wavelength conversion substances are localized in the base material towards the first principal face, and include a first phosphor which emits green to yellow light and a second phosphor which emits red light. The first phosphor is more localized towards the first principal face than the second phosphor. The second phosphor is a manganese-activated fluoride phosphor.
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Patent Agency Ranking
公开(公告)号：US10734555B2
公开(公告)日：2020-08-04
申请号：US16134002
申请日：2018-09-18
Applicant: NICHIA CORPORATION
Inventor： Tadaaki Ikeda , Takuya Nakabayashi
IPC: H01L33/50 , C09K11/02 , C09K11/61 , C08K3/34 , C09K11/08 , C09K11/77 , H01L33/56 , H01L33/60 , H01L33/46
Abstract: A light emitting device is provided. The light emitting device includes a light emitting element, which emits blue light, and a light transmissive member having a first principal face bonded to the light emitting element and a second principal face opposite the first principal face. The light transmissive member has a light transmissive base material and wavelength conversion substances, which are contained in the base material and which absorb the light from the light emitting element and emit light. The wavelength conversion substances are localized in the base material towards the first principal face, and include a first phosphor which emits green to yellow light and a second phosphor which emits red light. The first phosphor is more localized towards the first principal face than the second phosphor. The second phosphor is a manganese-activated fluoride phosphor.
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公开(公告)号：US10446725B2
公开(公告)日：2019-10-15
申请号：US15888266
申请日：2018-02-05
Applicant: NICHIA CORPORATION
Inventor： Takuya Nakabayashi , Tadaaki Ikeda
IPC: H01L33/60 , H01L25/075 , H01L23/00 , H01L33/62 , C09K11/08 , C09K11/61 , C09K11/77 , H01L33/50 , H01L33/48 , H01L33/64
Abstract: A light emitting device includes a mounting board, first and second light emitting elements and a light reflective covering member. The mounting board includes an insulating base, first and second lands arranged, and an intermediate part arranged between the first and second lands. The first and second light emitting elements are flip-chip mounted on the first and second lands, respectively. The light reflective covering member is provided above the intermediate part and covers lateral surfaces of the first and second light emitting elements. The light reflective covering member defines a recess part arranged above the intermediate part with a bottom of the recess part being positioned below top surfaces of the first and second light emitting elements and above the top surface of the intermediate part, and a surface of the light reflective covering member defining the recess part constitutes a part of an outer surface of the light emitting device.
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公开(公告)号：US10431724B2
公开(公告)日：2019-10-01
申请号：US15977580
申请日：2018-05-11
Applicant: NICHIA CORPORATION
Inventor： Tadaaki Ikeda , Toru Hashimoto
Abstract: A light emitting device includes: a rectangular substrate, a light emitting element, a reflective member disposed at one or more lateral sides of the light emitting element while being away from therefrom, a light guide member, and a light transmissive member on the light guide member. The reflective member includes one or more first reflective members opposing lateral faces of the light emitting element, and a second reflective member outside the first reflective member. The first reflective members have inner lateral faces opposing each other each having an oblique or curved portion slanted so that a distance therebetween increases towards the light transmissive member from a side close to the substrate. The second reflective member covers outer lateral faces of the light transmissive member and the first reflective members, and an upper face of the second reflective member is flush with an upper face of the light transmissive member.
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公开(公告)号：US10367121B2
公开(公告)日：2019-07-30
申请号：US15833644
申请日：2017-12-06
Applicant: NICHIA CORPORATION
Inventor： Tadaaki Ikeda , Masaki Hayashi , Koji Abe , Kimihiro Miyamoto
Abstract: A method of manufacturing a package, the method comprising the steps of: preparing a resin compact having a recess, and including a pair of leads arranged at a bottom surface of the recess, a first resin body forming a lateral wall of the recess, and a second resin body arranged between the pair of leads; forming a reflective film entirely on at least the bottom surface of the recess and an inner surface of the lateral wall of the recess; and removing the reflective film formed on the pair of leads in the recess in the resin compact on which the reflective film has been formed.
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公开(公告)号：US09640734B2
公开(公告)日：2017-05-02
申请号：US14568256
申请日：2014-12-12
Applicant: NICHIA CORPORATION
Inventor： Takuya Nakabayashi , Takeshi Ikegami , Tadaaki Ikeda , Tadao Hayashi , Hiroto Tamaki
CPC classification number: H01L33/486 , H01L24/97 , H01L25/13 , H01L33/387 , H01L33/502 , H01L33/54 , H01L33/62 , H01L2224/16225 , H01L2224/32225 , H01L2224/73204 , H01L2924/12035 , H01L2924/12041 , H01L2924/12042 , H01L2924/00
Abstract: Provided is a small and thin light emitting device which has no connection failure, a high life, high performance and good light extraction efficiency. The light emitting device includes a base body comprising a base material having a pair of connection terminals on at least a first main surface, a light emitting element connected to the connection terminals, and a sealing member that seals the light emitting element, wherein the base material has a linear expansion coefficient within ±10 ppm/° C. of the linear expansion coefficient of the light emitting element.
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