公开(公告)号：US12261090B2

公开(公告)日：2025-03-25

申请号：US18428088

申请日：2024-01-31

Applicant: NICHIA CORPORATION

Inventor： Masatsugu Ichikawa ,  Shoichi Yamada ,  Takeshi Kihara ,  Yutaka Matsusaka

IPC: H01L23/14 ,  H01L21/48 ,  H01L23/373 ,  B22D21/00 ,  C04B41/88

Abstract: A method of producing a composite substrate includes: providing a layered body including: a base layer formed of a composite material containing diamond and a metal, the base layer having a first surface, and a second surface opposite to the first surface, and a flat layer having a lower surface bonded to the first surface of the base layer, and an upper surface having a surface roughness Ra of 10 nm or less; and directly bonding an insulating layer to the upper surface of the flat layer.

公开(公告)号：US11799065B2

公开(公告)日：2023-10-24

申请号：US17161305

申请日：2021-01-28

Applicant: NICHIA CORPORATION

Inventor： Shoichi Yamada ,  Takeshi Kihara ,  Masatsugu Ichikawa

IPC: H01L33/64 ,  B22F3/12 ,  H01L23/373 ,  B22F3/105 ,  B22F7/06 ,  H01L21/48

CPC classification number: H01L33/641 ,  B22F3/105 ,  B22F3/12 ,  B22F7/06 ,  H01L21/4871 ,  H01L23/3732 ,  H01L23/3736 ,  B22F2202/06 ,  B22F2301/10 ,  B22F2302/406 ,  B22F2304/10

Abstract: A method of producing a heat dissipation substrate, the method including: providing a composite material containing diamond and a metal; performing a treatment on a surface of the composite material to reduce a thickness of the composite material, the treatment forming a processed surface of the composite material; and subsequently, performing pulsed electric current sintering with a pressure of less than 50 MPa applied to the composite material, to heat the composite material.

公开(公告)号：US11929294B2

公开(公告)日：2024-03-12

申请号：US17489595

申请日：2021-09-29

Applicant: NICHIA CORPORATION

Inventor： Masatsugu Ichikawa ,  Shoichi Yamada ,  Takeshi Kihara ,  Yutaka Matsusaka

IPC: H01L23/14 ,  H01L21/48 ,  H01L23/373

CPC classification number: H01L23/142 ,  H01L21/4882 ,  H01L23/3732 ,  H01L23/3733 ,  H01L21/4871 ,  H01L23/3736

Abstract: A composite substrate includes a base layer formed of a composite material containing diamond and a metal, the base layer a first surface, and a second surface opposite to the first surface; a flat layer having a lower surface bonded to the first surface of the base layer, and an upper surface having a surface roughness Ra of 10 nm or less; and an insulating layer directly bonded to the upper surface of the flat layer.

公开(公告)号：US10442987B2

公开(公告)日：2019-10-15

申请号：US16118209

申请日：2018-08-30

Applicant: NICHIA CORPORATION

Inventor： Toru Takasone ,  Masahiko Sano ,  Hiroyuki Inoue ,  Shoichi Yamada ,  Takafumi Sugiyama

IPC: C09K11/02 ,  F21V29/502 ,  C09K11/77 ,  F21V9/30 ,  F21V13/08 ,  F21V7/30 ,  C04B35/115 ,  C04B35/117 ,  C04B38/00 ,  C09D5/22 ,  H01L33/50 ,  C04B35/64 ,  H01L33/64 ,  C04B111/80

Abstract: A fluorescent member includes: a plurality of fluorescent particles; an inorganic binder; and a plurality of pores. An upper surface of the fluorescent member is a light extraction surface of the fluorescent member. The plurality of pores are localized in a vicinity of at least one of the plurality of fluorescent particles in a cross section that is parallel to the upper surface of the fluorescent member and extends through the fluorescent particles and the pores.

公开(公告)号：US10400993B2

公开(公告)日：2019-09-03

申请号：US15440292

申请日：2017-02-23

Applicant: NICHIA CORPORATION

Inventor： Shoichi Yamada ,  Takayoshi Wakaki ,  Masahiko Sano

IPC: F21V13/02 ,  F21K9/64 ,  F21K9/68 ,  F21V7/00 ,  F21V9/16 ,  C09K11/08 ,  F21K9/90 ,  C09K11/00

Abstract: A method of manufacturing a fluorescent-material-containing member includes: providing a fluorescent member including a fluorescent material, the fluorescent member having a first main surface side including a plurality of projections; disposing a powder of a light-reflective member between the projections of the fluorescent member; obtaining a sintered body by sintering the powder of the light-reflective member, and removing part of the sintered body from at least one of a first main surface side and a second main surface side of the fluorescent member to obtain the fluorescent-material-containing member including a first surface arranged on the first main surface side has and defined by the fluorescent member and the light-reflective member, and a second surface arranged on the second main surface side has and defined by the fluorescent member and the light-reflective member or defined solely by the fluorescent member.