公开(公告)号：US11147156B2

公开(公告)日：2021-10-12

申请号：US16349340

申请日：2017-11-08

Applicant: Sumitomo Electric Industries, Ltd. ,  A.L.M.T. Corp.

Inventor： Isao Iwayama ,  Shigeki Koyama ,  Masashi Okamoto ,  Yuta Inoue ,  Hiroyuki Kontani ,  Takehisa Yamamoto

IPC: H05K1/02 ,  H01L23/373 ,  H05K1/18 ,  H05K1/03 ,  C22C29/06 ,  H05K7/20 ,  C22C26/00

Abstract: A composite member includes a substrate composed of a composite material containing a metal and a non-metal. One surface of the substrate has spherical warpage of which radius of curvature R is not smaller than 5000 mm and not greater than 35000 mm. A sphericity error is not greater than 10.0 μm, the sphericity error being defined as an average distance between a plurality of measurement points on a contour of a warped portion of the substrate and approximate arcs defined by the plurality of measurement points. The substrate has a thermal conductivity not lower than 150 W/m·K and a coefficient of linear expansion not greater than 10 ppm/K.

公开(公告)号：US20170287810A1

公开(公告)日：2017-10-05

申请号：US15507938

申请日：2015-09-01

Applicant: A.L.M.T. Corp. ,  Sumitomo Electric Industries, Ltd.

Inventor： Tatsuya Morikawa ,  Takanori Kadokura ,  Isao Iwayama

IPC: H01L23/373 ,  B22F3/16 ,  F28F21/08 ,  B22F3/14 ,  H01L21/48 ,  F28F21/00

Abstract: A heat radiating member includes: a composite portion composed of a composite material which contains particles of a satisfactorily thermally conductive material in a metal matrix; and a metal layer formed on at least one surface of the composite portion and composed of a metal. A method for producing a heat radiating member includes: a preparation step to prepare a composite material which contains particles of a satisfactorily thermally conductive material in a metal matrix; a powder arrangement step to dispose a metal powder composed of metal particles on at least one surface of the composite material; and a heating step to heat the composite material and the metal powder, with the metal powder disposed on the composite material, to form a metal layer composed of a metal of the metal powder on a composite portion composed of the composite material.

公开(公告)号：US12264384B2

公开(公告)日：2025-04-01

申请号：US17598990

申请日：2020-03-13

Applicant: A.L.M.T. Corp.

Inventor： Isao Iwayama ,  Ryota Matsugi ,  Takahiro Nishimizu

IPC: C22C1/10 ,  C22C26/00 ,  C22C29/06 ,  C22C47/08

Abstract: A composite material contains a metallic phase, a non-metallic phase and a specific element. At least 90 mass % of the metallic phase is composed of at least one selected from the group consisting of Ag and Cu. The non-metallic phase includes a coated core material. The coated core material includes a core material and a carbide layer that covers at least a part of a surface of the core material. The core material contains at least one carbon-containing material selected from the group consisting of diamond, graphite, carbon fibers, and silicon carbide. The carbide layer contains a carbide of at least one metal element selected from the group consisting of Ti, Cr, Ta, and V. The specific element is at least one selected from the group consisting of Y and Mg. A total content of the specific element is 0.0004 mass % to 1.3 mass %.

公开(公告)号：US12112993B2

公开(公告)日：2024-10-08

申请号：US17289259

申请日：2019-08-30

Applicant: A.L.M.T. Corp.

Inventor： Ryota Matsugi ,  Isao Iwayama ,  Chieko Tanaka ,  Hideaki Morigami

IPC: H01L23/373 ,  B23K1/00 ,  B23K35/32 ,  B23K101/40 ,  B23K103/00 ,  B23K103/16

CPC classification number: H01L23/3732 ,  B23K1/0016 ,  B23K35/325 ,  H01L23/3736 ,  B23K2101/40 ,  B23K2103/172 ,  B23K2103/56

Abstract: A heat radiation member excellent in electrical insulation and better in thermal conduction is provided. The heat radiation member includes a substrate composed of a composite material containing diamond and a metallic phase, an insulating plate provided on at least a part of front and rear surfaces of the substrate and composed of an aluminum nitride, and a single bonding layer interposed between the substrate and the insulating plate, the heat radiation member having thermal conductivity not lower than 400 W/m·K.

公开(公告)号：US10553519B2

公开(公告)日：2020-02-04

申请号：US15507938

申请日：2015-09-01

Applicant: A.L.M.T. Corp. ,  Sumitomo Electric Industries, Ltd.

Inventor： Tatsuya Morikawa ,  Takanori Kadokura ,  Isao Iwayama

IPC: F28F7/00 ,  H01L23/373 ,  B22F3/14 ,  B22F3/16 ,  F28F21/00 ,  F28F21/08 ,  H01L21/48

Abstract: A heat radiating member includes: a composite portion composed of a composite material which contains particles of a satisfactorily thermally conductive material in a metal matrix; and a metal layer formed on at least one surface of the composite portion and composed of a metal. A method for producing a heat radiating member includes: a preparation step to prepare a composite material which contains particles of a satisfactorily thermally conductive material in a metal matrix; a powder arrangement step to dispose a metal powder composed of metal particles on at least one surface of the composite material; and a heating step to heat the composite material and the metal powder, with the metal powder disposed on the composite material, to form a metal layer composed of a metal of the metal powder on a composite portion composed of the composite material.