JP6433793B2 - Hamrnftのための表面拡散防止手段 - Google Patents
Hamrnftのための表面拡散防止手段 Download PDFInfo
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- JP6433793B2 JP6433793B2 JP2015006288A JP2015006288A JP6433793B2 JP 6433793 B2 JP6433793 B2 JP 6433793B2 JP 2015006288 A JP2015006288 A JP 2015006288A JP 2015006288 A JP2015006288 A JP 2015006288A JP 6433793 B2 JP6433793 B2 JP 6433793B2
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- 229910052741 iridium Inorganic materials 0.000 claims description 22
- 229910052697 platinum Inorganic materials 0.000 claims description 21
- 230000008018 melting Effects 0.000 claims description 19
- 238000002844 melting Methods 0.000 claims description 19
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- 229910052804 chromium Inorganic materials 0.000 claims description 11
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- 241000849798 Nita Species 0.000 claims description 8
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- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 claims description 5
- 229910001120 nichrome Inorganic materials 0.000 claims description 5
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 5
- 229910052735 hafnium Inorganic materials 0.000 claims description 4
- 229910052715 tantalum Inorganic materials 0.000 claims description 4
- 229910052726 zirconium Inorganic materials 0.000 claims description 4
- 230000005389 magnetism Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 27
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- 229910000510 noble metal Inorganic materials 0.000 description 16
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Images
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3109—Details
- G11B5/313—Disposition of layers
- G11B5/3133—Disposition of layers including layers not usually being a part of the electromagnetic transducer structure and providing additional features, e.g. for improving heat radiation, reduction of power dissipation, adaptations for measurement or indication of gap depth or other properties of the structure
- G11B5/314—Disposition of layers including layers not usually being a part of the electromagnetic transducer structure and providing additional features, e.g. for improving heat radiation, reduction of power dissipation, adaptations for measurement or indication of gap depth or other properties of the structure where the layers are extra layers normally not provided in the transducing structure, e.g. optical layers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/60—Fluid-dynamic spacing of heads from record-carriers
- G11B5/6005—Specially adapted for spacing from a rotating disc using a fluid cushion
- G11B5/6088—Optical waveguide in or on flying head
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B2005/0002—Special dispositions or recording techniques
- G11B2005/0005—Arrangements, methods or circuits
- G11B2005/0021—Thermally assisted recording using an auxiliary energy source for heating the recording layer locally to assist the magnetization reversal
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Description
135 導波路
205 書込み磁極
210 磁極縁部
215 開口部(aperture)
220 アンテナ
225 ヒートシンク
230 被覆材
235 導波路コア
250 表面拡散防止層
300 磁気ヘッド
302 アンテナ
308 表面拡散防止層
309 接着層
310 開口部(aperture)
314 開口部の垂直側面
316 シード層
318 導電層
322 第二の導電層
324 ヒートシンク
330 通路
332 通路の垂直側面
340 磁極縁部
350 書込み磁極
400 磁気ヘッド
404 導電層
414 ヒートシンク
420 通路
422 第二の導電層
423 シード層
430 磁極縁部
440 書込み磁極
500 磁気ヘッド
501 表面拡散防止層
502 アンテナ
503 通路
504 開口部(aperture)
505 シード層
506 導電層
512 第二の導電層
514 ヒートシンク
520 通路
522 垂直側面
530 磁極縁部
540 書込み磁極
550 接着層
601 表面拡散防止層
604 開口部(aperture)
605 アンテナ
606 導電層
608 磁性縁部
611 導波路コア
612 第二の表面拡散防止層
614 第三の表面拡散防止層
616 表面拡散防止層
630 下側被覆材
640 上側被覆材
704、708 被覆材
706 導波路コア
710 導波路
712 アンテナ
714、716、718 表面拡散防止層
720 磁性縁部
Claims (20)
- 近接場トランスデューサを含み、前記近接場トランスデューサが、
第一の融点を有するアンテナと、
前記アンテナの一部の上に配置された表面拡散防止層であって、前記第一の融点より高い第二の融点を有する表面拡散防止層と、
前記表面拡散防止層の上に配置された開口部と、
を含む、熱アシスト磁気記録ヘッド。 - 前記近接場トランスデューサの上に配置された第一の導電層と、
前記第一の導電層の上に配置された磁気縁部と、
前記第一の導電層の上及び前記磁気縁部の垂直側面の上に配置された第二の導電層と、
前記第二の導電層の上に配置されたヒートシンクと、
前記ヒートシンク、前記第二の導電層、及び前記磁気縁部の上に配置された書込み磁極と、
をさらに含む、請求項1に記載の熱アシスト磁気記録ヘッド。 - 前記表面拡散防止層が、Rh、Ru、W、Mo、Ir、Co、Pt、BおよびNiからなる群から選択される材料を含むAu合金である、請求項2に記載の熱アシスト磁気記録ヘッド。
- 前記表面拡散防止層の厚さが10nm未満である、請求項3に記載の熱アシスト磁気記録ヘッド。
- 前記表面拡散防止層の上に配置された接着層をさらに含み、前記接着層がSi、Ta、Ti、Zr、Cr、Hf、NiTa、NiCr、NiTi、NiHf、NiZrからなる群から選択される材料を含む、請求項2に記載の熱アシスト磁気記録ヘッド。
- 前記接着層の厚さが5nm未満である、請求項5に記載の熱アシスト磁気記録ヘッド。
- 前記開口部の上に配置され、前記開口部の一部を覆う磁性縁部と、
前記磁性縁部と前記開口部の間と、前記磁性縁部の垂直側面の上に配置された第一の導電層と、
前記アンテナ、前記第一の導電層によって覆われていない前記開口部の垂直側面と上面、及び前記第一の導電層の垂直側面の上に配置された第二の導電層と、
前記第二の導電層の上に配置されたヒートシンクと、
前記ヒートシンク、前記第一の導電層、前記第二の導電層、及び前記磁性縁部の上に配置された書込み磁極と、
をさらに含む、請求項1に記載の熱アシスト磁気記録ヘッド。 - 前記表面拡散防止層が、Rh、Ru、W、Mo、Ir、Co、Pt、BおよびNiからなる群から選択される材料を含むAu合金である、請求項7に記載の熱アシスト磁気記録ヘッド。
- 前記表面拡散防止層の上に配置された接着層をさらに含み、前記接着層が、Si、Ta、Ti、Zr、Cr、Hf、NiTa、NiCr、NiTi、NiHf、NiZrからなる群から選択される材料を含む、請求項7に記載の熱アシスト磁気記録ヘッド。
- 前記開口部の上に配置された第一の導電層と、
前記第一の導電層の上に配置され、前記第一の導電層の第一の部分を覆う磁性縁部と、
前記アンテナ、前記開口部の垂直側面、前記第一の導電層の第二の部分、及び前記磁性縁部の垂直側面の上に配置された第二の導電層と、
前記第二の導電層の上に配置されたヒートシンクと、
前記ヒートシンク、前記第二の導電層、及び前記磁性縁部の上に配置された書込み磁極と、
をさらに含む、請求項1に記載の熱アシスト磁気記録ヘッド。 - 前記表面拡散防止層が、Rh、Ru、W、Mo、Ir、Co、Pt、BおよびNiからなる群から選択される材料を含むAu合金である、請求項10に記載の熱アシスト磁気記録ヘッド。
- 前記表面拡散防止層の上に配置された接着層をさらに含み、前記接着層が、Si、Ta、Ti、Zr、Cr、Hf、NiTa、NiCr、NiTi、NiHf、NiZrからなる群から選択される材料を含む、請求項10に記載の熱アシスト磁気記録ヘッド。
- 近接場トランスデューサを含み、前記近接場トランスデューサが、
媒体対向面における第一の端と、導波路コアに隣接する第二の端とを有するアンテナと、
前記アンテナの上に配置された開口部と、
前記アンテナと前記開口部の間に配置された第一の表面拡散防止層と、
前記アンテナの前記第二の端と前記導波路コアの間に配置された第二の表面拡散防止層と、
前記媒体対向面における前記アンテナの前記第一の端の上に配置された第三の表面拡散防止層と、
を含む、熱アシスト磁気記録ヘッド。 - 前記開口部の上に配置された導電層と、
前記導電層の上に配置された磁性縁部と、
前記磁性縁部の上に配置された主磁極と、
をさらに含み、前記開口部、前記導電層、前記磁性縁部、及び前記主磁極の各々が前記媒体対向面にその端を有する、請求項13に記載の熱アシスト磁気記録ヘッド。 - 前記第三の表面拡散防止層が、前記媒体対向面に配置され、前記開口部、前記導電層、前記磁性縁部、及び前記主磁極の端を覆う、請求項14に記載の熱アシスト磁気記録ヘッド。
- 前記アンテナが第一の融点を有し、
前記第一、第二、及び第三の表面拡散防止層が、前記第一の融点より高い第二の融点を有する、請求項13に記載の熱アシスト磁気記録ヘッド。 - 前記第一、第二、及び第三の表面拡散防止層が、Rh、Ru、W、Mo、Ir、Co、Pt、BおよびNiからなる群から選択される材料を含むAu合金である、請求項16に記載の熱アシスト磁気記録ヘッド。
- 第一の被覆材と、
前記第一の被覆材の上に配置された導波路コアと、
前記導波路コアの上に配置された第二の被覆材と、
複数の表面拡散防止層によって取り囲まれたアンテナと、
を含む熱アシスト磁気記録ヘッドにおいて、
前記アンテナと前記表面拡散防止層が前記第二の被覆材の中に埋め込まれ、前記アンテナが媒体対向面においてテーパのついた先端を有する熱アシスト磁気記録ヘッド。 - 前記アンテナが第一の融点を有し、前記複数の表面拡散防止層が、前記第一の融点より高い第二の融点を有する、請求項18に記載の熱アシスト磁気記録ヘッド。
- 前記複数の表面拡散防止層が、Rh、Ru、W、Mo、Ir、Co、Pt、BおよびNiからなる群から選択される材料を含むAu合金である、請求項19に記載の熱アシスト磁気記録ヘッド。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US14/158,515 US8988827B1 (en) | 2014-01-17 | 2014-01-17 | Surface diffusion inhibitor for HAMR NFT |
US14/158,515 | 2014-01-17 |
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JP2015135718A JP2015135718A (ja) | 2015-07-27 |
JP6433793B2 true JP6433793B2 (ja) | 2018-12-05 |
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US (2) | US8988827B1 (ja) |
JP (1) | JP6433793B2 (ja) |
CN (1) | CN104821170B (ja) |
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2014
- 2014-01-17 US US14/158,515 patent/US8988827B1/en active Active
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2015
- 2015-01-16 JP JP2015006288A patent/JP6433793B2/ja active Active
- 2015-01-16 CN CN201510172542.1A patent/CN104821170B/zh active Active
- 2015-03-04 US US14/638,033 patent/US9099114B1/en active Active
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JP2015135718A (ja) | 2015-07-27 |
CN104821170A (zh) | 2015-08-05 |
US20150206545A1 (en) | 2015-07-23 |
US8988827B1 (en) | 2015-03-24 |
US9099114B1 (en) | 2015-08-04 |
CN104821170B (zh) | 2019-03-12 |
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