JP2007257815A - 磁気デバイス、垂直磁気記録ヘッド、磁気記録装置、磁性層パターンの形成方法および垂直磁気記録ヘッドの製造方法 - Google Patents
磁気デバイス、垂直磁気記録ヘッド、磁気記録装置、磁性層パターンの形成方法および垂直磁気記録ヘッドの製造方法 Download PDFInfo
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- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
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- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
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- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
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- 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
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- Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
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- Y10T29/4902—Electromagnet, transformer or inductor
- Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
- Y10T29/49032—Fabricating head structure or component thereof
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- Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
- Y10T29/49032—Fabricating head structure or component thereof
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Abstract
【解決手段】(1)開口部91Kを有するレジストパターン91(内壁91Wの傾斜角度ω)を形成し、(2)ALD法などのドライ膜形成方法を使用して開口部91Kを狭めるように非磁性層12(内壁12Wの傾斜角度Φ)を形成し、(3)非磁性層12が形成された開口部91Kを埋め込むようにシード層13およびめっき層14を積層形成し、(4)CMP法を使用してレジストパターン91が露出するまで非磁性層12、シード層13およびめっき層14を研磨することにより、主磁極層40(先端部40A:ベベル角θ)を形成する。最終的な開口幅(先端部40Aの形成幅)がばらつきにくくなると共に、主磁極層40の形成工程数が少なくて済む。
【選択図】図9
Description
"ALD原子層堆積装置",株式会社テックサイエンス,インターネット<URL:http://techsc.co.jp/products/mems/ALD.htm>
Claims (29)
- 断面形状がU字型をなす非磁性層と、
前記非磁性層の内側に埋設された磁性層と
を備えたことを特徴とする磁気デバイス。 - 前記磁性層は、
シード層と、
前記シード層上に形成されためっき層と
を含むことを特徴とする請求項1記載の磁気デバイス。 - 前記非磁性層は、ALD(atomic layer deposition )法により形成されたものである
ことを特徴とする請求項1または請求項2に記載の磁気デバイス。 - 断面形状がU字型をなし、不活性ガスを含まない第1の非磁性層と、
前記第1の非磁性層の外側に埋設され、不活性ガスを含む第2の非磁性層と、
前記第1の非磁性層の内側に埋設された磁性層と
を備えたことを特徴とする磁気デバイス。 - 断面形状がU字型をなす第1の非磁性層と、
前記第1の非磁性層の外側に埋設された第2の非磁性層と、
前記第1の非磁性層の内側に埋設された磁性層と
を備え、
前記第1の非磁性層の断面と交差する方向において、前記第1の非磁性層が前記第2の非磁性層よりも後退していると共に、前記磁性層が前記第1の非磁性層よりも前進している
ことを特徴とする磁気デバイス。 - 前記磁性層が、前記第2の非磁性層よりも後退している
ことを特徴とする請求項5記載の磁気デバイス。 - 前記磁性層が、前記第2の非磁性層よりも前進している
ことを特徴とする請求項5記載の磁気デバイス。 - 断面形状がU字型をなす非磁性層と、
前記非磁性層の内側に埋設された磁極と
を備えたことを特徴とする垂直磁気記録ヘッド。 - 前記磁極がエアベアリング面に近い側から遠い側に向かって延在し、
前記エアベアリング面に近い側における前記磁極の端面が逆台形形状である
ことを特徴とする請求項8記載の垂直磁気記録ヘッド。 - 前記磁極は、
シード層と、
前記シード層上に形成されためっき層と
を含むことを特徴とする請求項8または請求項9に記載の垂直磁気記録ヘッド。 - 前記非磁性層は、ALD法により形成されたものである
ことを特徴とする請求項8ないし請求項10のいずれか1項に記載の垂直磁気記録ヘッド。 - 断面形状がU字型をなし、不活性ガスを含まない第1の非磁性層と、
前記第1の非磁性層の外側に埋設され、不活性ガスを含む第2の非磁性層と、
前記第1の非磁性層の内側に埋設された磁極と
を備えたことを特徴とする垂直磁気記録ヘッド。 - 断面形状がU字型をなす第1の非磁性層と、
前記第1の非磁性層の外側に埋設された第2の非磁性層と、
前記第1の非磁性層の内側に埋設された磁極と
を備え、
前記第1の非磁性層の断面と交差する方向において、前記第1の非磁性層が前記第2の非磁性層よりも後退していると共に、前記磁極が前記第1の非磁性層よりも前進している
ことを特徴とする垂直磁気記録ヘッド。 - 前記磁極が、前記第2の非磁性層よりも後退している
ことを特徴とする請求項13記載の垂直磁気記録ヘッド。 - 前記磁極が、前記第2の非磁性層よりも前進している
ことを特徴とする請求項13記載の垂直磁気記録ヘッド。 - 記録媒体と、請求項8ないし請求項15のいずれか1項に記載された垂直磁気記録ヘッドと
を備えたことを特徴とする磁気記録装置。 - 前記記録媒体は、前記垂直磁気記録ヘッドに近い側および遠い側にそれぞれ配置される磁化層および軟磁性層を含む
ことを特徴とする請求項16記載の磁気記録装置。 - 下地上に、開口部を有するレジストパターンを形成する第1の工程と、
少なくとも前記開口部における前記レジストパターンの内壁を覆うことにより、その開口部を狭めるように第1の非磁性層を形成する第2の工程と、
少なくとも前記第1の非磁性層が形成された前記開口部を埋め込むように、磁性層を形成する第3の工程と、
少なくとも前記レジストパターンが露出するまで前記第1の非磁性層および前記磁性層を選択的に除去することにより、前記開口部に磁性層パターンを形成する第4の工程と
を含むことを特徴とする磁性層パターンの形成方法。 - 前記第2の工程において、ALD法を使用して前記第1の非磁性層を形成する
ことを特徴とする請求項18記載の磁性層パターンの形成方法。 - ALD法の膜形成温度が前記レジストパターンのガラス転移温度よりも低くなるようにする
ことを特徴とする請求項19記載の磁性層パターンの形成方法。 - 前記第4の工程において、前記第1の非磁性層および前記磁性層の除去を研磨により行う
ことを特徴とする請求項18ないし請求項20のいずれか1項に記載の磁性層パターンの形成方法。 - さらに、
残存する前記レジストパターンを除去する第5の工程と、
前記第1の非磁性層および前記磁性層パターンを覆うように第2の非磁性層を形成する第6の工程と、
少なくとも前記第1の非磁性層および前記磁性層パターンが露出するまで前記第2の非磁性層を選択的に除去する第7の工程と
を含むことを特徴とする請求項18ないし請求項21のいずれか1項に記載の磁性層パターンの形成方法。 - 前記第3の工程において、前記第1の非磁性層上にシード層を形成したのち、そのシード層上にめっき層を成長させることにより、前記磁性層を形成する
ことを特徴とする請求項18ないし請求項22のいずれか1項に記載の磁性層パターンの形成方法。 - 下地上に、開口部を有するレジストパターンを形成する第1の工程と、
少なくとも前記開口部における前記レジストパターンの内壁を覆うことにより、その開口部を狭めるように第1の非磁性層を形成する第2の工程と、
少なくとも前記第1の非磁性層が形成された前記開口部を埋め込むように、磁性層を形成する第3の工程と、
少なくとも前記レジストパターンが露出するまで前記第1の非磁性層および前記磁性層を選択的に除去することにより、前記開口部に磁極を形成する第4の工程と
を含むことを特徴とする垂直磁気記録ヘッドの製造方法。 - 前記第2の工程において、ALD法を使用して前記第1の非磁性層を形成する
ことを特徴とする請求項24記載の垂直磁気記録ヘッドの製造方法。 - ALD法の膜形成温度が前記レジストパターンのガラス転移温度よりも低くなるようにする
ことを特徴とする請求項25記載の垂直磁気記録ヘッドの製造方法。 - 前記第4の工程において、前記第1の非磁性層および前記磁性層の除去を研磨により行う
ことを特徴とする請求項24ないし請求項26のいずれか1項に記載の垂直磁気記録ヘッドの製造方法。 - さらに、
残存する前記レジストパターンを除去する第5の工程と、
前記第1の非磁性層および前記磁極を覆うように第2の非磁性層を形成する第6の工程と、
少なくとも前記第1の非磁性層および前記磁極が露出するまで前記第2の非磁性層を選択的に除去する第7の工程と
を含むことを特徴とする請求項24ないし請求項27のいずれか1項に記載の垂直磁気記録ヘッドの製造方法。 - 前記第3の工程において、前記第1の非磁性層上にシード層を形成したのち、そのシード層上にめっき層を成長させることにより、前記磁性層を形成する
ことを特徴とする請求項24ないし請求項28のいずれか1項に記載の垂直磁気記録ヘッドの製造方法。
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US11/708,609 US7885036B2 (en) | 2006-02-22 | 2007-02-21 | Magnetic device, perpendicular magnetic recording head, magnetic recording system, method of forming magnetic layer pattern, and method of manufacturing perpendicular magnetic recording head |
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Cited By (11)
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US7808743B2 (en) | 2007-03-05 | 2010-10-05 | Tdk Corporation | Perpendicular magnetic write head having a structure that suppresses unintended erasure of information on a write medium at a non-writing time |
US7817374B2 (en) | 2007-05-01 | 2010-10-19 | Tdk Corporation | Thin film device with lead conductor film of increased surface area |
US7848055B2 (en) | 2007-06-14 | 2010-12-07 | Tdk Corporation | Magnetic head with an electrode film including different film thicknesses |
US7859792B2 (en) | 2007-03-27 | 2010-12-28 | Tdk Corporation | Magnetic head with a recording element including a non-magnetic film and a magnetic pole film of an electrode and plated film formed in a depression of the magnetic pole film |
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-
2006
- 2006-11-22 JP JP2006316149A patent/JP2007257815A/ja not_active Withdrawn
-
2007
- 2007-02-21 US US11/708,609 patent/US7885036B2/en active Active
-
2010
- 2010-12-10 US US12/926,817 patent/US8201321B2/en active Active
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US8654479B2 (en) | 2012-06-28 | 2014-02-18 | Tdk Corporation | Thin-film magnetic recording head with thin film which constructs sensor or heater beneath main magnetic pole |
Also Published As
Publication number | Publication date |
---|---|
US8201321B2 (en) | 2012-06-19 |
US20110086182A1 (en) | 2011-04-14 |
US7885036B2 (en) | 2011-02-08 |
US20070195457A1 (en) | 2007-08-23 |
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