JP5896874B2 - 層状磁気構造、層状磁気構造を製造する方法、および読出素子 - Google Patents
層状磁気構造、層状磁気構造を製造する方法、および読出素子 Download PDFInfo
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- JP5896874B2 JP5896874B2 JP2012226849A JP2012226849A JP5896874B2 JP 5896874 B2 JP5896874 B2 JP 5896874B2 JP 2012226849 A JP2012226849 A JP 2012226849A JP 2012226849 A JP2012226849 A JP 2012226849A JP 5896874 B2 JP5896874 B2 JP 5896874B2
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Classifications
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- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
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- 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
- G11B5/3163—Fabrication methods or processes specially adapted for a particular head structure, e.g. using base layers for electroplating, using functional layers for masking, using energy or particle beams for shaping the structure or modifying the properties of the basic layers
- G11B5/3169—Working or finishing the interfacing surface of heads, e.g. lapping of heads
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- 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
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
-
- 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
- G11B5/10—Structure or manufacture of housings or shields for heads
- G11B5/11—Shielding of head against electric or magnetic fields
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- 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
- G11B5/10—Structure or manufacture of housings or shields for heads
- G11B5/11—Shielding of head against electric or magnetic fields
- G11B5/112—Manufacture of shielding device
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- G—PHYSICS
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- 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
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
- G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
- G11B5/3912—Arrangements in which the active read-out elements are transducing in association with active magnetic shields, e.g. magnetically coupled shields
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- 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
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
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- G11B5/62—Record carriers characterised by the selection of the material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/11—Magnetic recording head
- Y10T428/1164—Magnetic recording head with protective film
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Description
概要
ここに説明され、請求される実現化例は、実質的に劣化することなく、かつ層状磁気構造の化学エッチングに屈することなく、層状磁気構造の機械研磨に耐える1つ以上の停止層を含む、層状磁気構造を提供する。
情報および通信システムはますます、莫大な量のデータを取扱っており、磁気媒体の記憶容量および性能に多大な要求をつきつけている。磁気記憶媒体上のトランスデューサヘッドは通常、磁気ディスク上に記憶されている磁気的に符号化された情報を取出すための読出素子を含む。磁気ディスクの表面からの磁束は、読出素子の1つ以上の感知層の磁化ベクトルの回転を引起し、それは次に読出素子の電気抵抗率の変化を引起す。読出素子の電気抵抗率の変化は、磁気ディスク上に記憶されている磁気的に符号化された情報と相互に関連付けられる。磁気記憶媒体技術における改良は、現在利用可能な磁気ディスク上の面積記録密度を可能にしている。しかしながら、面積記録密度が増加するにつれて、より小さく、より感度が高い読出素子ヘッドが望まれる。読出素子がより小さく、より感度が高くなるにつれて、読出素子の製造中、読出素子のいくつかの層を保護しつつ、同時に読出素子の他の層を処理するために、1つ以上の停止層が使われ得る。
Claims (13)
- シールド要素と、
前記シールド要素に直接隣接する第1の停止層とを備える読出センサであって、
前記第1の停止層は、前記読出センサの化学機械研磨及び機械研磨の少なくとも1つの間、前記シールド要素を後退から保護する、読出センサ。 - 第2の停止層をさらに備え、前記第2の停止層は、前記第2の停止層に直接隣接するアルミナ層を、別の隣接する層の化学機械研磨及び機械研磨の少なくとも1つの間、後退から保護する、請求項1に記載の読出センサ。
- 前記第1の停止層は、前記シールド要素と前記第2の停止層との間に位置する、請求項2に記載の読出センサ。
- 前記第1の停止層は、前記第1の停止層に直接隣接するアルミナインサートを、隣接する再堆積物の化学機械研磨及び機械研磨の少なくとも1つの間、後退から保護する、請求項1〜3のいずれか1項に記載の読出センサ。
- 前記シールド要素は下方シールドである、請求項1〜4のいずれか1項に記載の読出センサ。
- 前記第1の停止層は、ルテニウム、クロム及びタンタルの少なくとも1つを含む、請求項1〜5のいずれか1項に記載の読出センサ。
- シールド要素と、第1の停止層とを含む読出センサを製造する方法であって、該方法は、
前記シールド要素に直接隣接する前記第1の停止層を堆積することを備え、前記第1の停止層は、前記読出センサの化学機械研磨及び機械研磨の少なくとも1つの間、前記シールド要素を後退から保護する、方法。 - 第2の停止層を堆積することをさらに備え、前記第2の停止層は、前記第2の停止層に直接隣接する絶縁層を、別の隣接する層の化学機械研磨及び機械研磨の少なくとも1つの間、後退から保護する、請求項7に記載の方法。
- 前記絶縁層は、アルミナインサートである、請求項8に記載の方法。
- 前記第1の停止層は、前記シールド要素と前記第2の停止層との間に位置する、請求項8または9に記載の方法。
- 前記第1の停止層は、ルテニウム、クロム及びタンタルの少なくとも1つを含む、請求項7〜10のいずれか1項に記載の方法。
- 前記第1の停止層の後退をもたらすことなく、前記シールド要素に隣接する材料を機械的研磨することをさらに備える、請求項7〜11のいずれか1項に記載の方法。
- 前記シールド要素は下方シールドである、請求項7〜12のいずれか1項に記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/274,139 US8771847B2 (en) | 2011-10-14 | 2011-10-14 | Reader stop-layers |
US13/274,139 | 2011-10-14 |
Publications (3)
Publication Number | Publication Date |
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JP2013089283A JP2013089283A (ja) | 2013-05-13 |
JP2013089283A5 JP2013089283A5 (ja) | 2014-04-17 |
JP5896874B2 true JP5896874B2 (ja) | 2016-03-30 |
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JP2012226849A Expired - Fee Related JP5896874B2 (ja) | 2011-10-14 | 2012-10-12 | 層状磁気構造、層状磁気構造を製造する方法、および読出素子 |
Country Status (6)
Country | Link |
---|---|
US (2) | US8771847B2 (ja) |
EP (1) | EP2581906A3 (ja) |
JP (1) | JP5896874B2 (ja) |
KR (1) | KR101531845B1 (ja) |
CN (1) | CN103295588B (ja) |
TW (1) | TWI498887B (ja) |
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TWI527182B (zh) * | 2012-08-09 | 2016-03-21 | 台灣愛美科股份有限公司 | 可伸縮單元及具有可伸縮單元之可伸縮網狀結構 |
US9944973B2 (en) | 2012-11-26 | 2018-04-17 | The University Of Toledo | Methods for standardized sequencing of nucleic acids and uses thereof |
US9230576B1 (en) | 2014-09-08 | 2016-01-05 | HGST Netherlands B.V. | Scissor reader with side shield decoupled from bias material |
WO2016056887A1 (en) * | 2014-10-09 | 2016-04-14 | Mimos Berhad | Humidity sensor with nanoporous polyimide membranes and a method of fabrication thereof |
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US20100183957A1 (en) | 2009-01-21 | 2010-07-22 | Seagate Technology Llc | Method of Patterned Media Template Formation and Templates |
US8395867B2 (en) * | 2009-03-16 | 2013-03-12 | Dimitar Velikov Dimitrov | Magnetic sensor with a recessed reference layer assembly and a front shield |
US8437105B2 (en) * | 2009-07-08 | 2013-05-07 | Seagate Technology Llc | Magnetic sensor with composite magnetic shield |
US20110007426A1 (en) | 2009-07-13 | 2011-01-13 | Seagate Technology Llc | Trapezoidal back bias and trilayer reader geometry to enhance device performance |
US8486285B2 (en) | 2009-08-20 | 2013-07-16 | Western Digital (Fremont), Llc | Damascene write poles produced via full film plating |
US8296930B2 (en) * | 2009-12-22 | 2012-10-30 | Hitachi Global Storage Technologies Netherlands B.V. | Method for manufacturing a magnetoresistive sensor having a flat shield |
US8896972B2 (en) * | 2010-02-08 | 2014-11-25 | Seagate Technology Llc | Magnetic read head with a read function feature |
US8659855B2 (en) * | 2010-03-19 | 2014-02-25 | Seagate Technology Llc | Trilayer reader with current constraint at the ABS |
US8902548B2 (en) * | 2010-04-30 | 2014-12-02 | Seagate Technology Llc | Head with high readback resolution |
US8922950B2 (en) * | 2011-05-06 | 2014-12-30 | Seagate Technology Llc | Multi-layer magnetoresistive shield with transition metal layer |
US8947834B2 (en) * | 2013-03-12 | 2015-02-03 | Seagate Technology Llc | Method and apparatus for chemical-mechanical polishing |
-
2011
- 2011-10-14 US US13/274,139 patent/US8771847B2/en active Active
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- 2012-10-12 TW TW101137744A patent/TWI498887B/zh not_active IP Right Cessation
- 2012-10-12 EP EP20120188430 patent/EP2581906A3/en not_active Withdrawn
- 2012-10-15 CN CN201210597631.7A patent/CN103295588B/zh not_active Expired - Fee Related
- 2012-10-15 KR KR1020120114177A patent/KR101531845B1/ko active IP Right Grant
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Also Published As
Publication number | Publication date |
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KR101531845B1 (ko) | 2015-06-26 |
TW201329967A (zh) | 2013-07-16 |
US20160293186A9 (en) | 2016-10-06 |
KR20130040751A (ko) | 2013-04-24 |
US20130095349A1 (en) | 2013-04-18 |
CN103295588A (zh) | 2013-09-11 |
US9542961B2 (en) | 2017-01-10 |
EP2581906A2 (en) | 2013-04-17 |
CN103295588B (zh) | 2016-09-28 |
EP2581906A3 (en) | 2015-04-22 |
US8771847B2 (en) | 2014-07-08 |
US20140302345A1 (en) | 2014-10-09 |
JP2013089283A (ja) | 2013-05-13 |
TWI498887B (zh) | 2015-09-01 |
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