公开(公告)号：US20180218920A1

公开(公告)日：2018-08-02

申请号：US15866018

申请日：2018-01-09

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： RYOU KUWABARA ,  NAOMI NISHIKI ,  HIDETOSHI KITAURA ,  ATSUSHI TANAKA ,  TAKESHI NISHIKAWA

IPC: H01L21/48 ,  B32B3/14 ,  B32B9/00 ,  B32B7/12 ,  B23K1/00 ,  F28F21/02 ,  H01L23/373

CPC classification number: H01L21/4882 ,  B23K1/0008 ,  B32B3/14 ,  B32B7/12 ,  B32B9/007 ,  B32B2307/302 ,  B32B2457/14 ,  F28F21/02 ,  H01L23/373 ,  H01L23/3735

Abstract: A graphite heat sink that is light in weight, excellent in thermal conductivity and high in mechanical strength. A graphite heat sink includes two or more graphite joined plates and solder joining layers which are alternately stacked, in which each graphite joined plate includes plural pieces of graphite plates and a solder joining portion, surfaces of the plural pieces of graphite plates parallel to a thickness direction and the solder joining portion are joined to one another, and the solder joining layer and the solder joining portion are formed of the same solder material.

公开(公告)号：US20190120568A1

公开(公告)日：2019-04-25

申请号：US16149359

申请日：2018-10-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： RYOU KUWABARA ,  NAOMI NISHIKI ,  MASATO MORI ,  TAKESHI NISHIKAWA

IPC: F28F3/06 ,  F28F21/02

Abstract: A graphite heat sink with light weight and high mechanical strength includes graphite fins and a metal press-fitted and fixed to a part of a surface of the graphite fin.

公开(公告)号：US20180179066A1

公开(公告)日：2018-06-28

申请号：US15730692

申请日：2017-10-11

Applicant: Panasonic Intellectual Property Management co.,Ltd

Inventor： NAOMI NISHIKI ,  HIDETOSHI KITAURA ,  ATSUSHI TANAKA ,  RYOU KUWABARA ,  TAKESHI NISHIKAWA

IPC: C01B32/21 ,  B22F1/02 ,  B22F1/00

CPC classification number: C01B32/21 ,  B22F1/0055 ,  B22F1/025 ,  B22F2301/10 ,  B22F2301/155 ,  B22F2301/205 ,  B22F2301/255 ,  B22F2302/40 ,  C01P2004/20

Abstract: A carbon-metal composite includes a flake-like graphite powder, and a metal covering a circumferential end portion of the flake-like graphite powder to thereby improve the contact resistance of crystalline graphite, and to provide a composition containing a carbon material having improved contact resistance.

公开(公告)号：US20180158747A1

公开(公告)日：2018-06-07

申请号：US15725177

申请日：2017-10-04

Applicant: Panasonic Intellectual Property Management co, Ltd.

Inventor： ATSUSHI TANAKA ,  NAOMI NISHIKI ,  HIDETOSHI KITAURA ,  RYOU KUWABARA ,  TAKESHI NISHIKAWA

IPC: H01L23/367 ,  H01L23/373 ,  H05K7/20 ,  B32B9/00 ,  B32B9/04

CPC classification number: H01L23/3672 ,  B32B9/007 ,  B32B9/045 ,  B32B2307/302 ,  H01L23/373 ,  H01L23/3735 ,  H01L23/3736 ,  H01L23/4006 ,  H01L23/467 ,  H05K7/20409 ,  H05K7/20418

Abstract: A graphite heat sink includes plate-shaped fin portions formed of a graphite material, a base portion contacting lower ends of the plate-shaped fin portions and a joining portion between the plate-shaped fin portions and the base portion, in which the plate-shaped fin portions have a thermal conductivity of 1200 W/mk or more and a thickness of 100 μm or more, and the joining portion is formed of metal.