KR100749679B1 - 준마이크로파 대역에서 최대의 복합 투자율을 가진자성체와 그 제조방법 - Google Patents
준마이크로파 대역에서 최대의 복합 투자율을 가진자성체와 그 제조방법 Download PDFInfo
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- KR100749679B1 KR100749679B1 KR1020017012043A KR20017012043A KR100749679B1 KR 100749679 B1 KR100749679 B1 KR 100749679B1 KR 1020017012043 A KR1020017012043 A KR 1020017012043A KR 20017012043 A KR20017012043 A KR 20017012043A KR 100749679 B1 KR100749679 B1 KR 100749679B1
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- 230000035699 permeability Effects 0.000 title claims abstract description 40
- 239000000126 substance Substances 0.000 title claims description 3
- 238000004519 manufacturing process Methods 0.000 title description 5
- 239000002131 composite material Substances 0.000 claims abstract description 91
- 239000000696 magnetic material Substances 0.000 claims abstract description 26
- 230000005415 magnetization Effects 0.000 claims abstract description 21
- 239000007769 metal material Substances 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 229910052727 yttrium Inorganic materials 0.000 claims abstract description 6
- 150000001875 compounds Chemical class 0.000 claims abstract description 3
- 229910052742 iron Inorganic materials 0.000 claims abstract description 3
- 238000004544 sputter deposition Methods 0.000 claims description 29
- 239000010408 film Substances 0.000 claims description 25
- 239000010409 thin film Substances 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 18
- 230000004044 response Effects 0.000 claims description 18
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 230000005684 electric field Effects 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 229910052796 boron Inorganic materials 0.000 claims description 2
- 229910052735 hafnium Inorganic materials 0.000 claims description 2
- 229910052749 magnesium Inorganic materials 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229910052758 niobium Inorganic materials 0.000 claims description 2
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 2
- 150000002910 rare earth metals Chemical class 0.000 claims description 2
- 229910052712 strontium Inorganic materials 0.000 claims description 2
- 229910052715 tantalum Inorganic materials 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 238000005137 deposition process Methods 0.000 claims 1
- 229910052759 nickel Inorganic materials 0.000 claims 1
- 239000012528 membrane Substances 0.000 description 27
- 230000000052 comparative effect Effects 0.000 description 25
- 239000011521 glass Substances 0.000 description 16
- 230000001629 suppression Effects 0.000 description 7
- 238000000151 deposition Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000000441 X-ray spectroscopy Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- 238000005546 reactive sputtering Methods 0.000 description 4
- 229910000859 α-Fe Inorganic materials 0.000 description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 208000032365 Electromagnetic interference Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000007737 ion beam deposition Methods 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
- H05K9/0084—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising a single continuous metallic layer on an electrically insulating supporting structure, e.g. metal foil, film, plating coating, electro-deposition, vapour-deposition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y25/00—Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/0036—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties showing low dimensional magnetism, i.e. spin rearrangements due to a restriction of dimensions, e.g. showing giant magnetoresistivity
- H01F1/0045—Zero dimensional, e.g. nanoparticles, soft nanoparticles for medical/biological use
- H01F1/0063—Zero dimensional, e.g. nanoparticles, soft nanoparticles for medical/biological use in a non-magnetic matrix, e.g. granular solids
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/33—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials mixtures of metallic and non-metallic particles; metallic particles having oxide skin
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F10/00—Thin magnetic films, e.g. of one-domain structure
- H01F10/007—Thin magnetic films, e.g. of one-domain structure ultrathin or granular films
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
- H01F41/30—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates for applying nanostructures, e.g. by molecular beam epitaxy [MBE]
- H01F41/301—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates for applying nanostructures, e.g. by molecular beam epitaxy [MBE] for applying ultrathin or granular layers
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
- H05K9/0083—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising electro-conductive non-fibrous particles embedded in an electrically insulating supporting structure, e.g. powder, flakes, whiskers
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Abstract
Description
Claims (17)
- M, X 및 Y를 구비하는 자기복합물(magnetic composition)의 고주파 노이즈를 억제하기 위한 자성체로서,상기 M은 Fe, Co 및 Ni 중 적어도 하나로 이루어진 금속제 자성재료이고, X는 M과 Y이외의 원소 또는 원소들이며, Y는 F, N 및 O 중 적어도 하나이고,상기 M-X-Y 자기복합물은 상기 M-X-Y 자기복합물이 M만을 구비하는 금속제 벌크의 자성재료의 포화 자기화의 35% - 80%의 포화 자기화를 가지며, 상기 자기복합물은 0.1 - 10 기가헤르쯔(GHz)의 주파수 범위 내에서 복합 투자율(complex permeability)(μ")의 최대값(μ"max)을 가지며, X는 C, B, Si, Al, Mg, Ti, Zn, Hf, Sr, Nb, Ta 및 희토류(rare-earth) 금속 중 적어도 하나인 것을 특징으로 하는 자성체.
- 제1항에 있어서, 상대 대역폭(relative bandwidth)(bwr)이 200% 이하인 비교적 협대역의 복합 투자율 주파수 응답을 가지며, 상기 상대 대역폭(bwr)은 상기 대역폭의 중심 주파수에 대하여 최대값(μ"max)의 반값(μ"50)으로서 복합 투자율을 나타내는 2개 주파수점 사이의 대역폭의 백분율로 결정되는 것을 특징으로 하는 자성체.
- 제2항에 있어서, 상기 금속제 자성재료 M은 포화 자기화를 가지며, 상기 자기복합물은 금속제 자성재료 M의 포화 자기화의 60-80%인 포화 자기화를 가지는 것을 특징으로 하는 자성체.
- 제2항 또는 제3항에 있어서, 상기 자기복합물은 100-700μΩ·cm 의 DC 비저항을 가지는 것을 특징으로 하는 자성체.
- 제1항에 있어서, 상대 대역폭(bwr)이 150% 이상인 비교적 광대역의 복합 투자율 주파수 응답을 가지고, 상기 상대 대역폭(bwr)은 상기 대역폭의 중심 주파수에 대하여 최대값(μ"max)의 반값(μ"50)으로서 복합 투자율을 나타내는 2개 주파수점 사이의 대역폭의 백분율로 결정되는 것을 특징으로 하는 자성체.
- 제5항에 있어서,상기 금속제 자성재료 M은 포화 자기화를 가지며, 상기 자기복합물은 금속제 자성재료 M의 포화자기화의 35 - 60%인 포화 자기화를 가지는 것을 특징으로 하는 자성체.
- 제5항 또는 제6항에 있어서,상기 자기복합물은 500 μΩ·cm 이상의 DC 비저항을 가지는 것을 특징으로 하는 자성체.
- 삭제
- 제1항, 제2항, 제3항, 제5항 및 제6항 중 어느 한 항에 있어서,상기 금속제 자성재료 M은 X - Y로 이루어지는 매트릭스 복합물 내에 과립상으로 된 입자(granular grains)로서 분포되는 것을 특징으로 하는 자성체.
- 삭제
- 청구항 11은(는) 설정등록료 납부시 포기되었습니다.제1항, 제2항, 제3항, 제5항 및 제6항 중 어느 한 항에 있어서,상기 자기복합물은 120 Oe 이하의 이방성 전계를 가지는 것을 특징으로 하는 자성체.
- 제1항, 제2항, 제3항, 제5항 및 제6항 중 어느 한 항에 있어서,상기 자기복합물은 Feα-Alβ-Oγ 구조식으로 표현된 복합물인 것을 특징으로 하는 자성체.
- 삭제
- 제 9항에 있어서,상기 자기복합물은 스퍼터링 프로세스에 의해 형성된 박막인 것을 특징으로 하는 자성체.
- 제 9항에 있어서,상기 자기복합물은 증착 프로세스에 의해 형성된 박막인 것을 특징으로 하는 자성체.
- 제1항, 제 2항, 제 3항, 제 5항 및 제 6항 중 어느 한 항에 있어서,고주파 노이즈 억제기로서 사용하기 위해 두께 0.3 - 20 ㎛를 가지는 막으로 형성되는 것을 특징으로 하는 자성체.
- 제16항에 기재된 상기 막을 전자장치 바로 위에 또는 인접하여 배치하는 것을 특징으로 하는 전자장치의 회로선 내에서 고주파 노이즈가 흐르는 것을 억제하기 위한 방법.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000052507A JP2001210518A (ja) | 2000-01-24 | 2000-01-24 | 磁気損失材料とその製造方法およびそれを用いた高周波電流抑制体 |
JPJP-P-2000-00052507 | 2000-01-24 |
Publications (2)
Publication Number | Publication Date |
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KR20020033602A KR20020033602A (ko) | 2002-05-07 |
KR100749679B1 true KR100749679B1 (ko) | 2007-08-16 |
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KR1020017012043A KR100749679B1 (ko) | 2000-01-24 | 2001-01-24 | 준마이크로파 대역에서 최대의 복합 투자율을 가진자성체와 그 제조방법 |
Country Status (10)
Country | Link |
---|---|
US (1) | US20030024605A1 (ko) |
EP (2) | EP1377150B1 (ko) |
JP (1) | JP2001210518A (ko) |
KR (1) | KR100749679B1 (ko) |
CN (1) | CN1190804C (ko) |
DE (2) | DE60129854T2 (ko) |
MY (1) | MY128745A (ko) |
NO (1) | NO322311B1 (ko) |
TW (1) | TW521283B (ko) |
WO (1) | WO2001054145A1 (ko) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1143516B1 (en) | 2000-04-04 | 2009-03-11 | NEC TOKIN Corporation | Semiconductor device using an electromagnetic noise suppressor and method of manufacturing the same |
WO2005086556A1 (ja) * | 2004-03-08 | 2005-09-15 | Nec Tokin Corporation | 電磁雑音吸収薄膜 |
US7371471B2 (en) | 2004-03-08 | 2008-05-13 | Nec Tokin Corporation | Electromagnetic noise suppressing thin film |
JP4719109B2 (ja) * | 2006-04-21 | 2011-07-06 | 株式会社東芝 | 磁性材料およびアンテナデバイス |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10270246A (ja) * | 1997-03-22 | 1998-10-09 | Res Inst Electric Magnetic Alloys | 磁性薄膜 |
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JPH09181476A (ja) * | 1995-12-26 | 1997-07-11 | Mitsui Mining & Smelting Co Ltd | 超微結晶磁性膜からなる電波吸収体 |
JP3608063B2 (ja) * | 1996-08-23 | 2005-01-05 | Necトーキン株式会社 | Emi対策部品及びそれを備えた能動素子 |
EP0991087A3 (en) * | 1998-09-28 | 2000-10-25 | Matsushita Electric Industrial Co., Ltd. | Soft magnetic thin film, soft magnetic multi-layered film, producing method thereof and magnetic device using them |
DE60006594T2 (de) * | 1999-01-18 | 2004-09-23 | Matsushita Electric Industrial Co., Ltd., Kadoma | Magnetfilm mit hohem elektrischem Widerstand |
-
2000
- 2000-01-24 JP JP2000052507A patent/JP2001210518A/ja active Pending
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2001
- 2001-01-23 MY MYPI20010333A patent/MY128745A/en unknown
- 2001-01-24 WO PCT/JP2001/000437 patent/WO2001054145A1/en active IP Right Grant
- 2001-01-24 US US09/914,744 patent/US20030024605A1/en not_active Abandoned
- 2001-01-24 EP EP03022559A patent/EP1377150B1/en not_active Expired - Lifetime
- 2001-01-24 KR KR1020017012043A patent/KR100749679B1/ko active IP Right Grant
- 2001-01-24 EP EP01901523A patent/EP1166288B1/en not_active Expired - Lifetime
- 2001-01-24 DE DE60129854T patent/DE60129854T2/de not_active Expired - Lifetime
- 2001-01-24 CN CNB018006213A patent/CN1190804C/zh not_active Expired - Lifetime
- 2001-01-24 DE DE60110865T patent/DE60110865T2/de not_active Expired - Lifetime
- 2001-01-29 TW TW090101619A patent/TW521283B/zh not_active IP Right Cessation
- 2001-09-24 NO NO20014634A patent/NO322311B1/no not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH10270246A (ja) * | 1997-03-22 | 1998-10-09 | Res Inst Electric Magnetic Alloys | 磁性薄膜 |
Also Published As
Publication number | Publication date |
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EP1166288A1 (en) | 2002-01-02 |
TW521283B (en) | 2003-02-21 |
DE60110865T2 (de) | 2006-04-27 |
WO2001054145A1 (en) | 2001-07-26 |
NO20014634D0 (no) | 2001-09-24 |
JP2001210518A (ja) | 2001-08-03 |
NO20014634L (no) | 2001-09-24 |
EP1166288B1 (en) | 2005-05-18 |
CN1190804C (zh) | 2005-02-23 |
EP1377150A1 (en) | 2004-01-02 |
EP1377150B1 (en) | 2007-08-08 |
KR20020033602A (ko) | 2002-05-07 |
US20030024605A1 (en) | 2003-02-06 |
CN1365502A (zh) | 2002-08-21 |
DE60129854D1 (de) | 2007-09-20 |
DE60110865D1 (de) | 2005-06-23 |
MY128745A (en) | 2007-02-28 |
NO322311B1 (no) | 2006-09-11 |
DE60129854T2 (de) | 2007-12-13 |
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