Title:
【発明の名称】磁気媒体の成形ビームレーザによるテクスチャ付け加工
Document Type and Number:
Japanese Patent JPH11509483
Kind Code:
A
Abstract:
Magnetic data storage disks, particularly along dedicated transducing head contact regions, are laser textured according to a process in which beam shaping optical components impart an elliptical or otherwise elongated cross-section to the laser beam. Consequently, individual texturing features such as rims and nodules are elliptical or elongate, with more gradual height gradients in directions parallel to their major axes. The texturing features further are oriented with respect to the direction of transducing head accelerations and decelerations, which yields high performance in terms of reduced dynamic friction, reduced stiction and better wear characteristics. Texturing features are formed in a variety of patterns, including patterns with adjacent features contacting one another. A further refinement involves forming features with substantially different slopes on opposites sides of a maximum height region.
Inventors:
Way, bo
Mayer, Dallas, W
Bread
Cusuan, Gialo, Jay
Sea, Chun, Wai
Mayer, Dallas, W
Bread
Cusuan, Gialo, Jay
Sea, Chun, Wai
Application Number:
JP54114597A
Publication Date:
August 24, 1999
Filing Date:
May 13, 1997
Export Citation:
Assignee:
Seagate Technology, Incorporated
International Classes:
B23K26/00; B23K26/06; B23K26/073; G11B5/74; G11B5/82; G11B5/84; (IPC1-7): B23K26/00; G11B5/82; G11B5/84
Attorney, Agent or Firm:
Akira Asamura (3 outside)