Title:
FILLER FOR PACKAGING MATERIAL AND PREPARATION METHOD THEREFOR, MAGNETIC PLASTIC PACKAGING MATERIAL, AND PACKAGED DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/055990
Kind Code:
A1
Abstract:
Provided in the present application are a filler for a packaging material and a preparation method therefor, a magnetic plastic packaging material, and a packaged device. The filler for a packaging material comprises ferrite particles, which comprise a nickel-copper-zinc ferrite (NiaZnbCucFedO4) material, wherein the value range of a is 0.3-0.55, the value range of b is 0.45-0.55, the value range of c is 0-0.2, and the value range of d is 1.8-2; and in the ferrite particles, the number of particles having a particle size of 2-11 μm accounts for 50-70%. The filler has the advantages of a low relative density, a wide absorption frequency band and good high-temperature and low-temperature properties, such that the overall mass of a packaged device can be reduced, and the anti-electromagnetic interference frequency band and suitable temperature range of the packaged device are improved.
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Inventors:
YU ZHIGANG (CN)
ZHOU JIANJUN (CN)
YAN WENBO (CN)
WANG TIANPENG (CN)
LIANG DIFEI (CN)
LI WEIJIA (CN)
YANG GUANG (CN)
DENG LONGJIANG (CN)
ZHOU JIANJUN (CN)
YAN WENBO (CN)
WANG TIANPENG (CN)
LIANG DIFEI (CN)
LI WEIJIA (CN)
YANG GUANG (CN)
DENG LONGJIANG (CN)
Application Number:
PCT/CN2023/118549
Publication Date:
March 21, 2024
Filing Date:
September 13, 2023
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
UNIV ELECTRONIC SCI & TECH CHINA (CN)
UNIV ELECTRONIC SCI & TECH CHINA (CN)
International Classes:
C04B35/30; C04B35/622; C08K3/22; H01F1/36; H01L23/29
Foreign References:
| CN101345109A | 2009-01-14 | |||
| CN115010479A | 2022-09-06 | |||
| JPH0971455A | 1997-03-18 |
Other References:
NIE MIN, TAN MIN: "Influence of crystalline size on the heat shock resistance of NiZn ferrite magnetic cores", JOURNAL OF MAGNETIC MATERIALS AND DEVICES, CN, vol. 50, no. 6, 30 November 2019 (2019-11-30), CN , pages 32 - 35, XP093147447, ISSN: 1001-3830, DOI: 10.19594/j.cnki.09.19701.2019.06.008
ANUPAMA A.V., KUMARAN V., SAHOO B.: "Application of Ni-Zn ferrite powders with polydisperse spherical particles in magnetorheological fluids", POWDER TECHNOLOGY, ELSEVIER, BASEL (CH), vol. 338, 1 October 2018 (2018-10-01), Basel (CH) , pages 190 - 196, XP093147453, ISSN: 0032-5910, DOI: 10.1016/j.powtec.2018.07.008
(LIU, DONGLIANG ET AL: "THE FOUNDAMENTALS OF MATERIALS SCIENCE, 1ST EDITION", 30 September 2016, EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY PRESS, CN, ISBN: 978-7-5628-4747-2, article LIU, DONGLIANG ET AL.: "Type AB2O4", pages: 72 - 73, XP009553191
"Soft Ferrite Manufacturing Principle and Technology, 1st edition ", 31 December 2010, SHAANXI PUBLISHING GROUP CO. LTD., CN, article XIA, DEGUI ET AL.: "Efffect of Additives on the Properties of NiCuZn Ferrite)", pages: 396 - 401, XP009553195
ANUPAMA A.V., KUMARAN V., SAHOO B.: "Application of Ni-Zn ferrite powders with polydisperse spherical particles in magnetorheological fluids", POWDER TECHNOLOGY, ELSEVIER, BASEL (CH), vol. 338, 1 October 2018 (2018-10-01), Basel (CH) , pages 190 - 196, XP093147453, ISSN: 0032-5910, DOI: 10.1016/j.powtec.2018.07.008
(LIU, DONGLIANG ET AL: "THE FOUNDAMENTALS OF MATERIALS SCIENCE, 1ST EDITION", 30 September 2016, EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY PRESS, CN, ISBN: 978-7-5628-4747-2, article LIU, DONGLIANG ET AL.: "Type AB2O4", pages: 72 - 73, XP009553191
"Soft Ferrite Manufacturing Principle and Technology, 1st edition ", 31 December 2010, SHAANXI PUBLISHING GROUP CO. LTD., CN, article XIA, DEGUI ET AL.: "Efffect of Additives on the Properties of NiCuZn Ferrite)", pages: 396 - 401, XP009553195
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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