公开(公告)号：US20040191575A1

公开(公告)日：2004-09-30

申请号：US10821871

申请日：2004-04-12

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Nobuo Kurataka ,  Hong Ying Wang ,  Neil Deeman

IPC: B05D003/12

CPC classification number: G11B5/855 ,  B82Y10/00 ,  C03B19/12 ,  C23C18/06 ,  C23C18/1212 ,  C23C18/1254 ,  C23C18/1295 ,  C23C26/00 ,  G11B5/59633 ,  G11B5/74 ,  G11B5/743 ,  G11B5/82 ,  Y02P40/57

Abstract: A method of manufacturing a magnetic recording medium including a servo pattern, comprising steps of: (a) providing a non-magnetic substrate including at least one major surface; (b) providing a stamper having a surface with a plurality of recesses forming a negative image of a servo pattern; (c) forming a layer of a partially dried sol-gel material having a first surface in conformal contact with the recess-patterned surface of the stamper and an exposed second surface opposite the first surface; (d) urging the major surface of the substrate into contact with the exposed second surface of the sol-gel layer; (e) removing the stamper from contact with the layer of sol-gel material to expose the recess-patterned surface thereof; (f) converting the partially dried sol-gel layer to a glass-like layer while preserving the recess pattern in the surface thereof; and (f) forming on the recess-patterned surface a laminate of layers constituting a servo-patterned magnetic recording medium.

Abstract translation: 一种制造包括伺服图案的磁记录介质的方法，包括以下步骤：（a）提供包括至少一个主表面的非磁性基板; （b）提供具有表面的压模，所述表面具有形成伺服图案的负像的多个凹部; （c）形成部分干燥的溶胶 - 凝胶材料层，其具有与压模的凹形图案表面保形接触的第一表面和与第一表面相对的暴露的第二表面; （d）促使基材的主表面与溶胶 - 凝胶层的暴露的第二表面接触; （e）除去所述压模与所述溶胶 - 凝胶材料层的接触以露出其凹形图案表面; （f）将部分干燥的溶胶 - 凝胶层转化成玻璃状层，同时保持其表面上的凹凸图案; 和（f）在凹形图案表面上形成构成伺服图案化磁记录介质的层的层叠体。

公开(公告)号：US20040052934A1

公开(公告)日：2004-03-18

申请号：US10662296

申请日：2003-09-16

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Hong Ying Wang ,  Neil Deeman ,  Gene Gauzner

IPC: B05D005/12

CPC classification number: B82Y10/00 ,  G11B5/743 ,  G11B5/84 ,  G11B5/8404 ,  G11B5/855

Abstract: A method of manufacturing a magnetic recording medium comprises steps of providing a non-magnetic substrate for a magnetic recording medium, the substrate including at least one major surface; forming a layer of a sol-gel on the at least one major surface; forming a pattern, e.g., a servo pattern in an exposed surface of the layer of said sol-gel; and converting the layer of sol-gel to a glass or glass-like layer while preserving the pattern in an exposed surface of said glass or glass-like layer. Embodiments of the invention include magnetic media including a patterned glass or glass-like layer formed from a layer of a hydrophilic sol-gel with the pattern embossed therein by means of a stamper having a hydrophilic surface including a negative image of the pattern.

Abstract translation: 制造磁记录介质的方法包括以下步骤：提供用于磁记录介质的非磁性基板，所述基板包括至少一个主表面; 在所述至少一个主表面上形成溶胶 - 凝胶层; 在所述溶胶 - 凝胶层的暴露表面中形成图案，例如伺服图案; 并且将所述溶胶 - 凝胶层转变成玻璃或玻璃状层，同时将所述图案保留在所述玻璃或玻璃状层的暴露表面中。 本发明的实施例包括磁性介质，其包括由亲水溶胶 - 凝胶层形成的图案化玻璃或玻璃状层，其中图案通过具有包含图案的负像的亲水表面的压模压印在其中。

公开(公告)号：US20040209048A1

公开(公告)日：2004-10-21

申请号：US10843365

申请日：2004-05-12

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Hong Ying Wang ,  Joseph Leigh ,  Neil Deeman ,  David Kuo

IPC: B32B003/28

CPC classification number: G11B5/7325 ,  G11B5/84 ,  G11B5/8404 ,  Y10T428/24537

Abstract: A method of manufacturing a magnetic recording medium comprises steps of providing a non-magnetic substrate having at least one surface; forming a layer of a sol-gel on the surface, partially drying the sol-gel layer at room temperature to remove a portion of the solvent therein to form a partially dried sol-gel layer of hardness less than that of the substrate; mechanically texturing the surface of the partially dried sol-gel layer; and depositing a layer stack including at least one magnetic layer thereover. Embodiments of the invention include embossing a servo pattern in the as-deposited sol-gel layer prior to partial drying and mechanically texturing, followed by sintering at an elevated temperature to form a substantially fully dried layer having a density and hardness similar to that of glass, and formation of a thin film magnetic media layer stack thereon.

Abstract translation: 制造磁记录介质的方法包括提供具有至少一个表面的非磁性基板的步骤; 在表面上形成溶胶 - 凝胶层，在室温下部分地干燥溶胶 - 凝胶层以除去其中的一部分溶剂，形成硬度小于基底的部分干燥的溶胶 - 凝胶层; 对部分干燥的溶胶 - 凝胶层的表面进行机械变形; 以及在其上沉积包括至少一个磁性层的层堆叠。 本发明的实施例包括在部分干燥和机械纹理化之前将沉积的溶胶 - 凝胶层中的伺服图案压花，随后在升高的温度下烧结以形成具有与玻璃相似的密度和硬度的基本上完全干燥的层 ，并在其上形成薄膜磁介质层叠层。

公开(公告)号：US20040058198A1

公开(公告)日：2004-03-25

申请号：US10662281

申请日：2003-09-16

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Hong Ying Wang ,  Neil Deeman ,  Gene Gauzner

IPC: B05D005/12

CPC classification number: B82Y10/00 ,  G11B5/743 ,  G11B5/84 ,  G11B5/8404 ,  G11B5/855

Abstract: A method of manufacturing a magnetic recording medium comprises steps of providing a non-magnetic substrate for a magnetic recording medium, the substrate including at least one major surface; forming a layer of a sol-gel on the at least one major surface; forming a pattern, e.g., a servo pattern in an exposed surface of the layer of said sol-gel; and converting the layer of sol-gel to a glass or glass-like layer while preserving the pattern in an exposed surface of said glass or glass-like layer. Embodiments of the invention include magnetic media including a patterned glass or glass-like layer formed from a layer of a hydrophilic sol-gel with the pattern embossed therein by means of a stamper having a hydrophilic surface including a negative image of the pattern.