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1. WO2022210298 - GRAPHITE-COPPER COMPOSITE MATERIAL, HEAT SINK MEMBER USING SAME, AND METHOD FOR MANUFACTURING GRAPHITE-COPPER COMPOSITE MATERIAL

Publication Number WO/2022/210298
Publication Date 06.10.2022
International Application No. PCT/JP2022/014138
International Filing Date 24.03.2022
IPC
G01N 25/72 2006.1
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
25Investigating or analysing materials by the use of thermal means
72Investigating presence of flaws
H01L 23/373 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
23Details of semiconductor or other solid state devices
34Arrangements for cooling, heating, ventilating or temperature compensation
36Selection of materials, or shaping, to facilitate cooling or heating, e.g. heat sinks
373Cooling facilitated by selection of materials for the device
C22C 1/10 2006.1
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
1Making non-ferrous alloys
10Alloys containing non-metals
C01B 32/21 2017.1
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
32Carbon; Compounds thereof
20Graphite
21After-treatment
B22F 3/11 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
3Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
10Sintering only
11Making porous workpieces or articles
B22F 3/14 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
3Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
12Both compacting and sintering
14simultaneously
CPC
B22F 3/11
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
3Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; ; Presses and furnaces
10Sintering only
11Making porous workpieces or articles
B22F 3/14
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
3Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; ; Presses and furnaces
12Both compacting and sintering
14simultaneously
C01B 32/21
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
32Carbon; Compounds thereof
20Graphite
21After-treatment
C22C 1/10
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
1Making alloys
10Alloys containing non-metals
G01N 25/72
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
25Investigating or analyzing materials by the use of thermal means
72Investigating presence of flaws
H01L 23/373
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
23Details of semiconductor or other solid state devices
34Arrangements for cooling, heating, ventilating or temperature compensation ; ; Temperature sensing arrangements
36Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
373Cooling facilitated by selection of materials for the device ; or materials for thermal expansion adaptation, e.g. carbon
Applicants
  • UBE株式会社 UBE CORPORATION [JP]/[JP]
Inventors
  • 吉村 正文 YOSHIMURA Masafumi
  • 稲森 太 INAMORI Dai
  • 砂本 健市 SUNAMOTO Kenichi
Agents
  • 弁理士法人きさらぎ国際特許事務所 KISARAGI ASSOCIATES
Priority Data
2021-06115231.03.2021JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) GRAPHITE-COPPER COMPOSITE MATERIAL, HEAT SINK MEMBER USING SAME, AND METHOD FOR MANUFACTURING GRAPHITE-COPPER COMPOSITE MATERIAL
(FR) MATÉRIAU COMPOSITE GRAPHITE-CUIVRE, ÉLÉMENT DE DISSIPATION THERMIQUE L'UTILISANT, ET PROCÉDÉ DE FABRICATION DE MATÉRIAU COMPOSITE GRAPHITE-CUIVRE
(JA) 黒鉛-銅複合材料、それを用いたヒートシンク部材、および黒鉛-銅複合材料の製造方法
Abstract
(EN) Provided is a graphite-copper composite material which comprises a copper layer and flake graphite particles laminated via the copper layer, in which the volume fraction of the copper is 3-30%, and which is characterized in that, in a laminate cross-section, the number N of in-particle gaps as obtained by (1a)-(1c) below is 5 or less. (1a) In the laminate cross-section, five visual fields for measurement, each being 930 μm × 1,230 μm, are defined. (1b) In each of the five visual fields for measurement, the number of gaps which are in the flake-like graphite particles and which have a width of 2-5 μm is counted to obtain N1-N5. (1c) The average value of the number of gaps ((N1+N2+N3+N4+N5)/5) is calculated to obtain the number N of in-particle gaps.
(FR) L'invention concerne un matériau composite graphite-cuivre qui comprend une couche de cuivre et des particules de graphite en paillettes stratifiées par l'intermédiaire de la couche de cuivre, la fraction volumique du cuivre étant de 3 à 30 %, et qui est caractérisé en ce que, dans une section transversale stratifiée, le nombre N d'espaces entre les particules, tel qu'obtenu par (1a)-(1c) ci-dessous, est de 5 ou moins. (1a) Dans la section transversale du stratifié, cinq champs de vue pour la mesure, chacun étant de 930 μm × 1230 μm, sont définis. (1b) Dans chacun des cinq champs de vue à mesurer, le nombre d'interstices qui se trouvent dans les particules de graphite en forme de flocons et qui ont une largeur de 2-5 μm est compté pour obtenir N1-N5. (1c) La valeur moyenne du nombre d'interstices ((N1+N2+N3+N4+N5)/5) est calculée pour obtenir le nombre N d'interstices entre les particules.
(JA) 銅層と、前記銅層を介して積層された鱗片黒鉛粒子とを含み、銅の体積分率が3~30%の黒鉛-銅複合材料であって、積層断面において、下記(1a)~(1c)により得られた粒子内隙間個数Nが5個以下であることを特徴とする。 (1a)前記積層断面内に930μm×1230μmの測定視野を5つ画定する。 (1b)5つの測定視野それぞれについて、鱗片状黒鉛粒子内における幅2~5μmの隙間の数を計数してN~Nとする。 (1c)隙間の数の平均値((N+N+N+N+N)/5)を算出して、粒子内隙間個数Nを得る。
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