JP2004178794A - 垂直磁気離散トラック記録ディスク - Google Patents
垂直磁気離散トラック記録ディスク Download PDFInfo
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- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
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Abstract
【解決手段】垂直磁気記録ディスクの軟磁性支持層上に離散トラック記録パターンを形成する方法において、一実施形態では、軟磁性支持層が離散トラック記録パターンを通じて連続する。
【選択図】図2
Description
以下の説明では、本発明が完全に理解されるように、具体的な物質または構成要素の例として具体的な多くの詳細事項を記載する。しかし、本発明を実行するのにこれらの具体的な詳細事項を採用する必要がないことを当業者なら理解するであろう。他の場合では、本発明を不必要に不明瞭にすることを避けるために、よく知られた構成要素または方法の詳細な説明は省略した。
205、305、410、605、705、810 ディスク基板
210、310、610、710 NiP層
220、320 エンボス可能層
215、420、620、715、820 軟磁性体支持層
Claims (65)
- 基板の上に軟磁性体支持層を配置するステップと、
軟磁性体支持層上に離散トラック記録パターンを形成するステップであって、軟磁性体支持層は、離散トラック・パターンを通じて連続であるステップとを含む製造方法。 - 形成ステップはサブトラクティブ法を含む請求項1に記載の方法。
- 形成ステップは、
軟磁性体支持層をエンボス可能層で被覆するステップと
エンボス可能層に離散トラック記録パターンをインプリントするステップとをさらに含む請求項2に記載の方法。 - インプリント・ステップはインプリント・リソグラフィを含む請求項3に記載の方法。
- エンボス可能層を軟磁性体支持層までエッチングして、第1の複数の隆起ゾーンと窪みゾーンを形成するステップをさらに含む請求項3に記載の方法。
- 形成ステップは、軟磁性体支持層をエッチングして、離散トラック記録パターンを形成する第2の複数の隆起ゾーンと窪みゾーンを軟磁性体支持層に形成するステップをさらに含む請求項5に記載の方法。
- エッチング・ステップはプラズマ・エッチングを含む請求項5に記載の方法。
- 形成ステップは、エンボス可能層を除去するステップをさらに含む請求項6に記載の方法。
- 形成ステップはアディティブ法を含む請求項1に記載の方法。
- 形成ステップは、
軟磁性体支持層をエンボス可能層で被覆するステップと、
エンボス可能層に離散トラック記録パターンをインプリントするステップとをさらに含む請求項9に記載の方法。 - インプリント・ステップはインプリント・リソグラフィを含む請求項10に記載の方法。
- エンボス可能層を軟磁性体支持層までエッチングして、第1の複数の隆起ゾーンと窪みゾーンを形成するステップをさらに含む請求項10に記載の方法。
- 形成ステップは、軟磁性体支持層物質を第1の複数の窪みゾーンに堆積させて、離散トラック記録パターンを形成する第2の複数の隆起ゾーンと窪みゾーンを軟磁性体支持層に形成するステップをさらに含む請求項12に記載の方法。
- 堆積ステップは電気メッキを含む請求項13に記載の方法。
- 堆積ステップは無電解メッキを含む請求項13に記載の方法。
- 形成ステップは、エンボス可能層を除去するステップをさらに含む請求項13に記載の方法。
- 真空堆積により第1の複数の隆起ゾーンと窪みゾーンに軟磁性体支持層物質を堆積させるステップをさらに含む請求項12に記載の方法。
- 磁気記録ディスクは垂直磁気記録ディスクを含む請求項1に記載の方法。
- 基板を研磨するステップをさらに含む請求項18に記載の方法。
- 基板を粗面化するステップをさらに含む請求項19に記載の方法。
- 軟磁性体支持層を研磨するステップをさらに含む請求項18に記載の方法。
- 軟磁性体支持層を粗面化するステップをさらに含む請求項21に記載の方法。
- 垂直記録ディスクを製造する方法であって、
層上に離散トラック記録パターンを形成するステップと、
層の上に軟磁性体支持層を配置するステップと、
軟磁性体支持層の上に磁性記録層を配置するステップであって、軟磁性体支持層は、層上に形成された離散トラック記録パターンの上で連続するステップとを含む方法。 - 形成ステップはアディティブ法を含む請求項23に記載の方法。
- 形成ステップは、
層をエンボス可能層で被覆するステップと、
エンボス可能層に離散トラック記録パターンをインプリントするステップとをさらに含む請求項24に記載の方法。 - インプリント・ステップはインプリント・リソグラフィを含む請求項25に記載の方法。
- 形成ステップは、エンボス可能層を層までエッチングして、第1の複数の隆起ゾーンと窪みゾーンを形成するステップをさらに含む請求項25に記載の方法。
- 軟磁性体支持層を配置するステップは、第1の複数の隆起ゾーンと窪みゾーン上に軟磁性体支持層物質を堆積して、層の上に配置される軟磁性体支持層を形成するステップをさらに含む請求項27に記載の方法。
- 堆積ステップは電気メッキを含む請求項28に記載の方法。
- 軟磁性体支持層を配置するステップは、軟磁性体支持層を平坦化するステップをさらに含む請求項28に記載の方法。
- 軟磁性体支持層を配置するステップは、第1の複数の窪みゾーンに軟磁性体支持層物質を、隆起ゾ−ント実質的に等しい高さまで堆積して、実質的に均一な表面を形成するステップをさらに含む請求項27に記載の方法。
- 軟磁性体支持層を配置するステップは、表面に追加的な軟磁性体支持層物質を堆積させて、連続的な軟磁性体支持層を形成するステップをさらに含む請求項31に記載の方法。
- 軟磁性体支持層を配置するステップは、軟磁性体支持層を平坦化するステップをさらに含む請求項32に記載の方法。
- 層はディスク基板を含む請求項23に記載の方法。
- 層はNiP層を含み、ディスク基板の上にNiP層を配置する請求項23に記載の方法。
- 配置ステップは、NiP層を研磨するステップをさらに含む請求項35に記載の方法。
- 配置ステップは、NiP層を粗面化するステップをさらに含む請求項36に記載の方法。
- 軟磁性体支持層を配置するステップは、軟磁性体支持層を研磨するステップをさらに含む請求項23に記載の方法。
- 軟磁性体支持層は、軟磁性体支持層を粗面化するステップをさらに含む請求項38に記載の方法。
- 基板と、
磁性記録層と、
基板と磁性記録層の間に配置され、離散トラック記録パターンを有し、離散トラック・パターンを通じて連続する軟磁性体支持層とを備えた垂直磁気記録ディスク。 - 離散トラック・パターンは複数の隆起ゾーンと窪みゾーンを形成する請求項40に記載の垂直磁気記録ディスク。
- 離散トラック記録パターンはインプリント・リソグラフィによって形成される請求項41に記載の垂直記録ディスク。
- ディスク基板はガラス物質を含む請求項40に記載の垂直記録ディスク。
- ディスク基板は金属物質を含む請求項40に記載の垂直記録ディスク。
- ディスク基板と軟磁性体支持層の間に配置されるNiP層をさらに備えた請求項44に記載の垂直記録ディスク。
- NiP層は粗面化された表面を有する請求項44に記載の垂直記録ディスク。
- 離散トラック記録パターンは200から2000オングストロームのピッチを有する請求項41に記載の垂直記録ディスク。
- 軟磁性体支持層は粗面化された表面を有する請求項40に記載の垂直記録ディスク。
- 基板は粗面化された表面を有する請求項40に記載の垂直記録ディスク。
- 軟磁性体支持層内でのトラック間分離を確保する手段と、
ディスク基板の上に軟磁性体支持層を配置する手段とを備えた垂直磁気記録ディスク。 - 軟磁性体支持層の上にエンボス可能層を配置する手段と、
エンボス可能層にトラック間分離パターンをインプリントする手段とをさらに備えた請求項50に記載の垂直磁気記録ディスク。 - インプリントはリソグラフィを含む請求項51に記載の垂直磁気記録ディスク。
- スピンドルと、
スピンドルに結合されたディスクであって、ディスク基板、磁性記録層、および基板と磁性記録層の間に配置された軟磁性体支持層を有し、離散トラック記録パターンが軟磁性体支持層により形成され、軟磁性体支持層は離散トラック記録パターンを通じて連続するディスクとを備えたディスク・ドライブ。 - 磁性記録層は垂直磁気記録ディスクを含む請求項53に記載のディスク・ドライブ。
- 離散トラック記録パターンはインプリント・リソグラフィによって形成される請求項53に記載のディスク・ドライブ。
- 軟磁性体支持層を基板上に配置するステップと、
軟磁性体支持層を粗面化するステップとを含む製造方法。 - 離散トラック記録パターンを基板上に形成するステップをさらに含む請求項56に記載の方法。
- 軟磁性体支持層に対してNiP層を配置するステップをさらに含む請求項56に記載の方法。
- NiP層を粗面化するステップをさらに含む請求項58に記載の方法。
- 基板と軟磁性体支持層の間にNiPの層を配置するステップをさらに含む請求項56に記載の方法。
- 粗面化する前に軟磁性体支持層を研磨するステップをさらに含む請求項56に記載の方法。
- 基板と、
磁性記録層と、
基板と磁性記録層の間に配置され、粗面化された表面を有する軟磁性体支持層とを備えた垂直磁気記録ディスク。 - 離散トラック記録パターンを軟磁性体支持層上に形成するステップをさらに備えた請求項62に記載の垂直磁気記録ディスク。
- 基板の上に軟磁性体支持層を配置するステップと、
軟磁性体支持層を研磨するステップとを含む製造方法。 - 離散トラック記録パターンを軟磁性体支持層上に形成するステップをさらに含む請求項64に記載の方法。
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Also Published As
Publication number | Publication date |
---|---|
US20070039922A1 (en) | 2007-02-22 |
US7656615B2 (en) | 2010-02-02 |
US7608193B2 (en) | 2009-10-27 |
US20070041306A1 (en) | 2007-02-22 |
DE10352776A1 (de) | 2004-06-24 |
US7147790B2 (en) | 2006-12-12 |
MY134086A (en) | 2007-11-30 |
US20040101713A1 (en) | 2004-05-27 |
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