公开(公告)号：KR20200127972A

公开(公告)日：2020-11-11

申请号：KR20207016122

申请日：2019-03-08

Applicant: DENKA COMPANY LTD

Inventor： MATSUI RYUKI ,  SHIIBA MITSURU

IPC: C01B21/064 ,  A61K8/19 ,  A61Q1/02

Abstract: 본개시는, 1 차입자및 1 차입자의응집입자의적어도일방의입자를포함하고, 용출붕소량이 1 g 당 20 ppm 이하이고, 평균입자경이 2.5 ∼ 7.0 ㎛이며, 36 ㎛이상의입자경을갖는상기입자의함유량이 10.0 체적% 이하인, 질화붕소분말을제공한다.

公开(公告)号：EP3006419A4

公开(公告)日：2017-03-22

申请号：EP14807434

申请日：2014-06-02

Applicant: DENKA COMPANY LTD

Inventor： IKARASHI KOKI ,  NONAKA SHUHEI ,  MITSUNAGA TOSHIKATSU ,  HIROTSURU HIDEKI ,  SHIIBA MITSURU

IPC: C04B35/583 ,  C04B38/00 ,  C04B41/83 ,  H01L23/15 ,  H01L23/373 ,  H05K1/03

CPC classification number: C04B41/84 ,  C04B35/583 ,  C04B41/009 ,  C04B41/48 ,  C04B41/4853 ,  C04B41/4905 ,  C04B41/4961 ,  C04B41/83 ,  C04B2111/00844 ,  C04B2235/3208 ,  C04B2235/386 ,  C04B2235/3895 ,  C04B2235/5292 ,  C04B2235/5436 ,  C04B2235/5472 ,  C04B2235/787 ,  C04B2235/9607 ,  H01L23/145 ,  H01L23/3737 ,  H01L2924/0002 ,  H05K1/0373 ,  H05K2201/0209 ,  H01L2924/00 ,  C04B38/00

Abstract: A resin-impregnated boron nitride sintered body having superior thermal conductivity and superior strength, and a resin-impregnated boron nitride sintered body having superior conductivity and small anisotropy of thermal conductivity are provided. A resin-impregnated boron nitride sintered body, including: 30 to 90 volume% of a boron nitride sintered body having boron nitride particles bonded three-dimensionally; and 10 to 70 volume% of a resin; wherein the boron nitride sintered body has a porosity of 10 to 70%; the boron nitride particles of the boron nitride sintered body has an average long diameter of 10µm or more; the boron nitride sintered body has a graphitization index by powder X-ray diffractometry is 4.0 or less; and an orientation degree of the boron nitride particles of the boron nitride sintered body by I.O.P is 0.01 to 0.05 or 20 to 100; and a resin-impregnated boron nitride sintered body, including: 30 to 90 volume% of a boron nitride sintered body having boron nitride particles bonded three-dimensionally; and 10 to 70 volume% of a resin; wherein: the boron nitride sintered body has a calcium content of 500 to 5000ppm; the boron nitride sintered body has a graphitization index by powder X-ray diffractometry of 0.8 to 4.0; the boron nitride sintered body comprises flake-like boron nitride particles having an average long diameter of 10µm or more; and an orientation degree by I.O.P is 0.6 to 1.4; are provided.