公开(公告)号：US10355173B2

公开(公告)日：2019-07-16

申请号：US15837434

申请日：2017-12-11

Applicant: NICHIA CORPORATION

Inventor： Yukiko Oshima ,  Yoshiki Sato ,  Toshiyuki Okazaki ,  Takayoshi Wakaki

IPC: H01L33/44 ,  H01L33/64 ,  H01L33/48

Abstract: A method for manufacturing a light emitting device includes: integrally molding a package and a lead, the package arranged to form at least part of an inner peripheral face of a recess portion in which the light emitting element is housed, the package including a base material and a plurality of particles, the base material including a resin, a coefficient of thermal expansion of the particles being different from a coefficient of thermal expansion of the base material; and covering the inner peripheral face of the recess portion with a cover film, the cover film having light transmissive and electrical insulation.

公开(公告)号：US09871170B2

公开(公告)日：2018-01-16

申请号：US14299065

申请日：2014-06-09

Applicant: NICHIA CORPORATION

Inventor： Yukiko Oshima ,  Yoshiki Sato ,  Toshiyuki Okazaki ,  Takayoshi Wakaki

IPC: H01L33/44 ,  H01L33/64 ,  H01L33/48

CPC classification number: H01L33/44 ,  H01L33/486 ,  H01L33/644 ,  H01L2224/48247 ,  H01L2224/48257 ,  Y10T29/49002

Abstract: A light emitting device has a light emitting element, a package, a lead, and a cover film. The package is arranged to form at least part of an inner peripheral face of a recess portion. The light emitting element is housed in the recess portion. The lead is disposed on a bottom face of the recess portion. The lead is electrically connected to the light emitting element. The cover film is arranged to cover the inner peripheral face of the recess portion. The cover film has light transmissive and electrical insulation. The package includes a base material and a plurality of particles. The base material includes a resin. A coefficient of thermal expansion of the particles is different from a coefficient of thermal expansion of the base material. The particles are disposed at least near the inner peripheral face of the recess portion.

公开(公告)号：US10400166B2

公开(公告)日：2019-09-03

申请号：US15910735

申请日：2018-03-02

Applicant: NICHIA CORPORATION

Inventor： Tomokazu Yoshida ,  Shoji Hosokawa ,  Sadakazu Wakui ,  Toshiyuki Okazaki

IPC: C09K11/61 ,  H01L33/50

Abstract: A method for producing a fluoride fluorescent material including: preparing a first solution containing manganese, a second solution containing at least one cation selected from the group consisting of K+, Li+, Na+, Rb+, Cs+, and NH4+, and a third solution containing at least one element selected from the group consisting of the elements from Groups 4 and 14 of the periodic table, and adding the first and third solutions dropwise, each at a rate of 0.3% or less of the total volume of the solution per minute to the second solution to obtain particles having a composition represented by formula (I): A2[M1−aMn4+aF6] (I) wherein A denotes at least one cation selected from the group consisting of K+, Li+, Na+, Rb+, Cs+, and NH4+; M denotes at least one element selected from the group consisting of the elements from Groups 4 and 14 of the periodic table; and a satisfies 0.04

公开(公告)号：US09944848B2

公开(公告)日：2018-04-17

申请号：US14867614

申请日：2015-09-28

Applicant: NICHIA CORPORATION

Inventor： Tomokazu Yoshida ,  Shoji Hosokawa ,  Sadakazu Wakui ,  Toshiyuki Okazaki

IPC: C09K11/61 ,  H01L33/50

CPC classification number: C09K11/617 ,  H01L33/504 ,  H01L2224/32245 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/73265 ,  H01L2924/181 ,  H01L2924/00012 ,  H01L2924/00014 ,  H01L2924/00

Abstract: A method for producing a fluoride fluorescent material including: preparing a first solution containing manganese, a second solution containing at least one cation selected from the group consisting of K+, Li+, Na+, Rb+, Cs+, and NH4+, and a third solution containing at least one element selected from the group consisting of the elements from Groups 4 and 14 of the periodic table, and adding the first and third solutions dropwise, each at a rate of 0.3% or less of the total volume of the solution per minute to the second solution to obtain particles having a composition represented by formula (I): A2[M1-aMn4+aF6] (I) wherein A denotes at least one cation selected from the group consisting of K+, Li+, Na+, Rb+, Cs+, and NH4+; M denotes at least one element selected from the group consisting of the elements from Groups 4 and 14 of the periodic table; and a satisfies 0.04