JP5878493B2 - 装置、磁気読取素子およびトランスデューシングヘッド - Google Patents
装置、磁気読取素子およびトランスデューシングヘッド Download PDFInfo
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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
- G11B5/48—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
- G11B5/4806—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 specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
- G11B5/4813—Mounting or aligning of arm assemblies, e.g. actuator arm supported by bearings, multiple arm assemblies, arm stacks or multiple heads on single arm
-
- 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
- G11B5/584—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 for track following on tapes
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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
- G11B5/29—Structure or manufacture of unitary devices formed of plural heads for more than one track
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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
- 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
- G11B5/3967—Composite structural arrangements of transducers, e.g. inductive write and magnetoresistive read
- G11B5/397—Composite structural arrangements of transducers, e.g. inductive write and magnetoresistive read with a plurality of independent magnetoresistive active read-out elements for respectively transducing from selected components
- G11B5/3974—Composite structural arrangements of transducers, e.g. inductive write and magnetoresistive read with a plurality of independent magnetoresistive active read-out elements for respectively transducing from selected components from the same information track, e.g. frequency bands
-
- 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
- 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
- G11B5/3967—Composite structural arrangements of transducers, e.g. inductive write and magnetoresistive read
- G11B5/397—Composite structural arrangements of transducers, e.g. inductive write and magnetoresistive read with a plurality of independent magnetoresistive active read-out elements for respectively transducing from selected components
- G11B5/3977—Composite structural arrangements of transducers, e.g. inductive write and magnetoresistive read with a plurality of independent magnetoresistive active read-out elements for respectively transducing from selected components from different information tracks
-
- 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
- G11B5/488—Disposition of heads
- G11B5/4886—Disposition of heads relative to rotating disc
-
- 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
- G11B5/49—Fixed mounting or arrangements, e.g. one head per track
- G11B5/4969—Details for track selection or addressing
- G11B5/4976—Disposition of heads, e.g. matrix arrangement
-
- 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
- G11B5/54—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 into or out of its operative position or across tracks
- G11B5/55—Track change, selection or acquisition by displacement of the head
- G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
- G11B5/5552—Track change, selection or acquisition by displacement of the head across disk tracks using fine positioning means for track acquisition separate from the coarse (e.g. track changing) positioning means
-
- 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
- G11B5/54—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 into or out of its operative position or across tracks
- G11B5/55—Track change, selection or acquisition by displacement of the head
- G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
- G11B5/5582—Track change, selection or acquisition by displacement of the head across disk tracks system adaptation for working during or after external perturbation, e.g. in the presence of a mechanical oscillation caused by a shock
-
- 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
- G11B5/596—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 for track following on disks
-
- 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
- G11B5/4806—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 specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
- G11B5/4826—Mounting, aligning or attachment of the transducer head relative to the arm assembly, e.g. slider holding members, gimbals, adhesive
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Description
本開示の様々な実施例は、一般的に、2次元データ検出が可能な磁気センサに向けられている。
近年のデータ記憶デバイスは、データ容量の増大、データアクセスの高速化およびフォームファクタの低減に向けて着実に進歩している。これらの3つの目標のうちの少なくとも2つは、熱補助型磁気記録(HAMR)およびビットパターン媒体(BPM)などの、面密度を増大させる技術を介して達成される。HAMRおよびBPMの成熟度の現在のレベルのために、面データビット密度を増大させるようにデータ記憶デバイスにおいてすぐに実装され得る代替のおよび補完的な技術が発展してきている。そのような技術の1つは、後でデコードされ、複数のデータトラックを処理する、データの多次元エンコーディングを採用した、2次元磁気記憶(TDMR)の使用である。
らなる空間を可能にする。読取センサ164、読取センサ166および読取センサ168の大きさおよび配向は、図4に示されるものに限定されず、単一および複数の軸に沿う回転軸162について対称に配置されるようにセンサのいくつかあるいは全てが構成され得ることに留意すべきである。
Claims (18)
- 回転軸について対称に配置された複数の読取センサを備え、
前記複数の読取センサのうちの少なくとも2つは、2次元ユーザーデータを同時に読み取るように構成されており、
前記少なくとも2つの読取センサの各々は、データ記憶媒体のデータトラックのトラックピッチの半分である共通の長さを有し、前記回転軸から前記共通の長さの半分の位置に位置付けられる、装置。 - 前記少なくとも2つの読取センサの各々は、データ記憶媒体の個別のデータトラックから読み取る、請求項1に記載の装置。
- 前記個別のデータトラックの各データトラックは、共通のトラック幅を有する、請求項2に記載の装置。
- 前記共通のトラック幅は、50nmである、請求項3に記載の装置。
- 前記回転軸は、共通のスライダ上にある、請求項1〜4のいずれか1項に記載の装置。
- 前記複数の読取センサの各々は、前記共通のスライダの空気軸受けの表面上に配置される、請求項5に記載の装置。
- 前記複数の読取センサの第1の読取センサおよび第2の読取センサが、前記回転軸の側部側に配置される、請求項1〜6のいずれか1項に記載の装置。
- 前記複数の読取センサは、前記回転軸に交差する中心軸に対称な第3の読取センサをさらに含む、請求項1〜7のいずれか1項に記載の装置。
- 前記複数の読取センサの各読取センサは、磁気抵抗性である、請求項1〜8のいずれか1項に記載の装置。
- 回転軸に対して互いに反対側に配置され、各々が第1の長さを有する第1の読取センサおよび第2の読取センサと、
前記回転軸からのダウントラックであってかつ前記回転軸に対して対称に配置された第3の読取センサとを備え、前記第3の読取センサは、前記第1の長さよりも長い第2の長さを有する、磁気読取素子。 - 前記第1の読取センサ、前記第2の読取センサおよび前記第3の読取センサは、データ記憶媒体の別々のデータトラックに関与するように配置される、請求項10に記載の磁気読取素子。
- 前記第3の読取センサの反対側に、前記回転軸からアップトラックであってかつ前記回転軸に対して対称に配置された第4の読取センサをさらに備える、請求項10または11に記載の磁気読取素子。
- 前記第3の読取センサは、前記回転軸から前記第1の長さの2倍の位置に配置される、請求項10から12のいずれか1項に記載の磁気読取素子。
- 前記第1〜第3の読取センサの各々は、同時にユーザデータを読み取りつつ、複数のデータトラックに渡って広がる、請求項11〜13のいずれか1項に記載の磁気読取素子。
- 回転軸周りに回転するともに、空気軸受面(ABS)を介してデータ記憶装置に隣接して支持されるスライダと、
前記回転軸に交差する長手方向の中心線の横方向に互いに反対側に、前記スライダによって支持された第1の読取センサおよび第2の読取センサと、
前記長手方向の中心線に交差するダウントラック位置に、前記スライダによって支持された第3の読取センサとを備え、
前記第3の読取センサは、前記第1の読取センサまたは前記第2の読取センサのうちの選択された少なくとも一方と部分的に重なり合う、トランスデューシングヘッド。 - 前記第1の読取センサおよび前記第2の読取センサは、共通の第1の長さを有し、
前記第3の読取センサは前記共通の第1の長さよりも大きい第2の長さを有する、請求項15に記載のトランスデューシングヘッド。 - 前記第3の読取センサは、前記中心線に対して対称であり、かつ前記第1の読取センサおよび前記第2の読取センサの双方に部分的に重なり合う、請求項15または16に記載のトランスデューシングヘッド。
- 前記第1の読取センサおよび前記第2の読取センサは、夫々、別々の第1のデータトラックおよび第2のデータトラックに関与するように構成され、
前記第3の読取センサは、共通の第3のデータトラックに関与するように構成され、前記第3のデータトラックは、前記第1のデータトラックおよび前記第2のデータトラックとは異なる、請求項15〜17のいずれか1項に記載のトランスデューシングヘッド。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US13/458,700 | 2012-04-27 | ||
US13/458,700 US8711517B2 (en) | 2012-04-27 | 2012-04-27 | Two dimensional magnetic sensor immune to skew angle misalignment |
Publications (2)
Publication Number | Publication Date |
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JP2013232271A JP2013232271A (ja) | 2013-11-14 |
JP5878493B2 true JP5878493B2 (ja) | 2016-03-08 |
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Application Number | Title | Priority Date | Filing Date |
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JP2013086386A Expired - Fee Related JP5878493B2 (ja) | 2012-04-27 | 2013-04-17 | 装置、磁気読取素子およびトランスデューシングヘッド |
Country Status (5)
Country | Link |
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US (2) | US8711517B2 (ja) |
EP (1) | EP2657936A1 (ja) |
JP (1) | JP5878493B2 (ja) |
KR (1) | KR101442096B1 (ja) |
CN (1) | CN103377660B (ja) |
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KR20130121736A (ko) | 2013-11-06 |
JP2013232271A (ja) | 2013-11-14 |
US8711517B2 (en) | 2014-04-29 |
CN103377660B (zh) | 2016-12-07 |
KR101442096B1 (ko) | 2014-09-18 |
CN103377660A (zh) | 2013-10-30 |
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