公开(公告)号：US20230365471A1

公开(公告)日：2023-11-16

申请号：US18246082

申请日：2021-09-28

Applicant: Denka Company Limited

Inventor： Yusuke WAKUDA ,  Yoshitaka MINAKATA ,  Shinya SAKAGUCHI ,  Tomoya YAMAGUCHI ,  Koki IKARASHI ,  Koji NISHIMURA

IPC: C04B37/02 ,  B32B9/04 ,  B32B9/00 ,  B32B37/18 ,  B32B15/20 ,  C04B35/583 ,  C04B38/00 ,  C04B41/83 ,  C04B41/48 ,  C04B41/00 ,  H01L23/373

CPC classification number: C04B37/028 ,  B32B9/041 ,  B32B9/005 ,  B32B37/18 ,  B32B15/20 ,  C04B35/583 ,  C04B38/0054 ,  C04B41/83 ,  C04B41/4853 ,  C04B41/0072 ,  H01L23/3735 ,  B32B2260/021 ,  B32B2260/046 ,  B32B2307/748 ,  B32B2307/306 ,  B32B2315/02 ,  B32B2311/12 ,  B32B2250/02 ,  B32B2305/07 ,  B32B2305/026 ,  C04B2235/3856 ,  C04B2235/386 ,  C04B2237/407 ,  C04B2237/361 ,  C04B2237/61

Abstract: One aspect of the present disclosure provides a composite sheet including a porous sintered ceramic component having a thickness of less than 2 mm and a resin filled into pores of the sintered ceramic component, wherein the curing rate of the resin is 10 to 70%.

公开(公告)号：US20230348335A1

公开(公告)日：2023-11-02

申请号：US18245681

申请日：2021-09-27

Applicant: Denka Company Limited

Inventor： Yoshitaka MINAKATA ,  Yusuke WAKUDA ,  Masahide KANEKO ,  Shinya SAKAGUCHI ,  Tomoya YAMAGUCHI

IPC: C04B37/02 ,  C04B35/583 ,  C04B38/00 ,  C04B41/48 ,  C04B41/45 ,  C04B41/83

CPC classification number: C04B37/021 ,  C04B35/583 ,  C04B38/0096 ,  C04B41/48 ,  C04B41/4505 ,  C04B41/83

Abstract: A composite sheet includes porous a nitride sintered body having a thickness of less than 2 mm and resins filled in pores of the nitride sintered body, and has a main surface having a maximum height roughness Rz of less than 20 μm. A method for manufacturing the composite sheet includes an impregnating step of impregnating pores of a porous the nitride sintered body having a thickness of less than 2 mm with a resin composition, a smoothing step of smoothing the resin composition attached to a main surface of the nitride sintered body to obtain a resin-impregnated body in which a part of the main surface is exposed, and a curing step of heating the resin-impregnated body to cure or semi-cure the resin composition impregnated in the pores to obtain the composite sheet.

公开(公告)号：US20210032171A1

公开(公告)日：2021-02-04

申请号：US16766954

申请日：2018-12-05

Applicant: DENKA COMPANY LIMITED

Inventor： Yoshitaka MINAKATA ,  Eri SASAKI ,  Toshitaka YAMAGATA ,  Saori INOUE ,  Ryo YOSHIMATU ,  Ryuji KOGA

IPC: C04B41/48 ,  C08G59/24 ,  H05K1/03 ,  H05K3/38 ,  C09J163/00 ,  C04B38/00 ,  C04B41/82

Abstract: A nitride-based ceramics resin composite body having thermal conductivity, electrical insulation, and adhesion to adherends equal to conventional products, and having improved heat resistance reliability during the reflow process, and a thermal conductive insulating adhesive sheet using the same are provided. A nitride-based ceramics resin composite body in which a thermosetting resin composition is impregnated in a porous nitride-based ceramics sintered body is provided. The thermosetting resin composition includes a specific epoxy resin and a bismaleimide triazine resin, and a water absorption of the thermosetting resin composition in a completely cured state measured in accordance with method A in JIS K7209 (2000) is 1% by mass or less.

公开(公告)号：US20230366829A1

公开(公告)日：2023-11-16

申请号：US18246096

申请日：2021-09-28

Applicant: Denka Company Limited

Inventor： Yusuke WAKUDA ,  Yoshitaka MINAKATA ,  Shinya SAKAGUCHI ,  Tomoya YAMAGUCHI ,  Koki IKARASHI ,  Koji NISHIMURA

IPC: G01N21/84 ,  G01N21/64

CPC classification number: G01N21/8422 ,  G01N21/64 ,  G01N2021/8411 ,  G01N2021/8438

Abstract: One aspect of the present disclosure is a method for evaluating adhesiveness performance and heat radiation performance of a composite including a porous sintered ceramic component and a semi-cured product of a resin filled into pores of the sintered ceramic component, including a step of emitting ultraviolet rays to the surface of the semi-cured product of the composite; a step of measuring an emission intensity of fluorescence generated from the semi-cured product; and a step of evaluating adhesiveness performance and heat radiation performance of the composite using the value of the emission intensity.

公开(公告)号：US20220194870A1

公开(公告)日：2022-06-23

申请号：US17441756

申请日：2020-03-25

Applicant: Denka Company Limited

Inventor： Yoshitaka MINAKATA ,  Eri SASAKI ,  Saori INOUE ,  Mana OKI

IPC: C04B41/83 ,  C04B22/00 ,  C04B35/58 ,  C04B41/89

Abstract: The present disclosure provides a composite including a nitride sintered body having a porous structure and a semi-cured product of a heat-curable composition impregnated into the nitride sintered body, wherein a dielectric breakdown voltage obtainable after disposing the composite between adherends, heating and pressurizing the composite for 5 minutes under the conditions of 200° C. and 10 MPa, and further heating the composite for 2 hours under the conditions of 200° C. and atmospheric pressure, is greater than 5 kV.

公开(公告)号：US20220177375A1

公开(公告)日：2022-06-09

申请号：US17441763

申请日：2020-03-26

Applicant: Denka Company Limited

Inventor： Saori INOUE ,  Shoji IWAKIRI ,  Yoshitaka MINAKATA ,  Ryo YOSHIMATSU ,  Ryuji KOGA ,  Tomoya YAMAGUCHI

IPC: C04B35/583 ,  C04B41/83

Abstract: One aspect of the present invention is a composite including: a porous boron nitride sintered body; and a resin filled in pores of the boron nitride sintered body, wherein the boron nitride sintered body has an average pore diameter of 3.5 μm or less.

公开(公告)号：US20200031723A1

公开(公告)日：2020-01-30

申请号：US16498648

申请日：2018-03-28

Applicant: DENKA COMPANY LIMITED

Inventor： Saori INOUE ,  Toshitaka YAMAGATA ,  Yoshitaka MINAKATA ,  Ryo YOSHIMATSU ,  Ryuji KOGA

IPC: C04B35/583 ,  C04B41/83 ,  H01L23/373 ,  H01L23/34

Abstract: A thermal conductive member includes: first and second surface layers including an insulating material A, and an intermediate layer including an insulating material B. The insulating material A includes a first boron nitride sintered body having an orientation degree of hexagonal boron nitride primary particles of 0.6 to 1.4, and a first heat curable resin composition impregnating in the first boron nitride sintered body. The insulating material B includes a second boron nitride sintered body having an orientation degree of hexagonal boron nitride primary particles of 0.01 to 0.05, and a second heat curable resin composition impregnating in the second boron nitride sintered body.

公开(公告)号：US20230357090A1

公开(公告)日：2023-11-09

申请号：US18246123

申请日：2021-09-28

Applicant: Denka Company Limited

Inventor： Yusuke WAKUDA ,  Yoshitaka MINAKATA ,  Shinya SAKAGUCHI ,  Tomoya YAMAGUCHI ,  Koki IKARASHI ,  Koji NISHIMURA

IPC: C04B37/02 ,  C04B41/83 ,  C04B41/48 ,  C04B35/583 ,  C04B38/06 ,  B32B9/00 ,  B32B9/04 ,  B32B15/20

CPC classification number: C04B37/028 ,  C04B41/83 ,  C04B41/4884 ,  C04B35/583 ,  C04B38/068 ,  B32B9/005 ,  B32B9/041 ,  B32B15/20 ,  C04B2235/3856 ,  C04B2235/386 ,  C04B2237/361 ,  C04B2237/407 ,  C04B2237/61 ,  B32B2255/26 ,  B32B2307/748 ,  B32B2307/7376 ,  B32B2260/02 ,  B32B2260/046 ,  H01L23/15

Abstract: One aspect of the present disclosure provides a composite sheet including a porous sintered ceramic component having a thickness of less than 2 mm and a resin filled into pores of the sintered ceramic component, wherein the resin is a semi-cured product of a resin composition including a compound having a cyanate group and the content of triazine rings in the resin is 0.6 to 4.0 mass %.

公开(公告)号：US20230357089A1

公开(公告)日：2023-11-09

申请号：US18246073

申请日：2021-09-27

Applicant: Denka Company Limited

Inventor： Yoshitaka MINAKATA ,  Yusuke WAKUDA ,  Masahide KANEKO ,  Shinya SAKAGUCHI ,  Tomoya YAMAGUCHI

IPC: C04B37/02 ,  C04B35/583 ,  C04B38/00 ,  C04B41/83 ,  C04B41/00 ,  C04B41/48 ,  B32B9/04 ,  B32B15/20 ,  B32B9/00

CPC classification number: C04B37/028 ,  C04B35/583 ,  C04B38/0054 ,  C04B41/83 ,  C04B41/0072 ,  C04B41/4853 ,  B32B9/041 ,  B32B15/20 ,  B32B9/005 ,  C04B2235/386 ,  C04B2237/361 ,  C04B2237/407 ,  C04B2237/61 ,  H01L23/3733

Abstract: Provided is a composite sheet including a porous nitride sintered body having a thickness of less than 2 mm and a resin filled in pores of the nitride sintered body, wherein a filling rate of the resin is 85% by volume or more. Provided is a method for manufacturing a composite sheet including an impregnation step of impregnating pores of a porous nitride sintered body having a thickness of less than 2 mm with a resin composition having a viscosity of 10 to 500 mPa·s to obtain a resin-impregnated body, and a curing step of heating the resin-impregnated body to semi-cure the resin composition filled in the pores.

公开(公告)号：US20230141729A1

公开(公告)日：2023-05-11

申请号：US17906890

申请日：2021-03-30

Applicant: Denka Company Limited

Inventor： Yoshitaka MINAKATA ,  Yusuke WAKUDA ,  Shinya SAKAGUCHI ,  Tomoya YAMAGUCHI ,  Koji NISHIMURA

IPC: C04B41/48 ,  C04B35/583 ,  C04B35/64 ,  C04B35/63 ,  C04B41/00 ,  C04B41/83 ,  H05K1/03

CPC classification number: C04B41/4853 ,  C04B35/583 ,  C04B35/64 ,  C04B35/6303 ,  C04B41/0072 ,  C04B41/83 ,  H05K1/0353 ,  C04B2235/386 ,  C04B2235/3856 ,  C04B2235/3409 ,  C04B2235/442 ,  C04B2235/612 ,  C04B2235/652 ,  H05K2201/06

Abstract: Provided is a method for manufacturing a composite body, the method including: a nitriding step of firing a boron carbide powder in a nitrogen atmosphere to obtain a fired product containing boron carbonitride; a sintering step of molding and heating a blend containing the fired product and a sintering aid to obtain a boron nitride sintered body including boron nitride particles and pores; and an impregnating step of impregnating the boron nitride sintered body with a resin composition, the composite body having the boron nitride sintered body and a resin filled in at least some of the pores of the boron nitride sintered body.