Invention Application
US20100149688A1 PERPENDICULAR-MAGNETIC-RECORDING HEAD WITH LEADING-EDGE TAPER OF A PLANARIZED STEPPED-POLE LAYER HAVING GREATER RECESS DISTANCE THAN A FLARE-POINT OF A MAIN-POLE LAYER 审中-公开
具有平面化阶梯平面层的平面磁记录头的平面磁记录头具有比主层的点的更大的记录距离

  • Patent Title: PERPENDICULAR-MAGNETIC-RECORDING HEAD WITH LEADING-EDGE TAPER OF A PLANARIZED STEPPED-POLE LAYER HAVING GREATER RECESS DISTANCE THAN A FLARE-POINT OF A MAIN-POLE LAYER
  • Patent Title (中): 具有平面化阶梯平面层的平面磁记录头的平面磁记录头具有比主层的点的更大的记录距离
  • Application No.: US12333094
    Application Date: 2008-12-11
  • Publication No.: US20100149688A1
    Publication Date: 2010-06-17
  • Inventor: Quang LeJui-Lung Li
  • Applicant: Quang LeJui-Lung Li
  • Main IPC: G11B5/127
  • IPC: G11B5/127
PERPENDICULAR-MAGNETIC-RECORDING HEAD WITH LEADING-EDGE TAPER OF A PLANARIZED STEPPED-POLE LAYER HAVING GREATER RECESS DISTANCE THAN A FLARE-POINT OF A MAIN-POLE LAYER
Abstract:
Perpendicular-magnetic-recording head with leading-edge taper of a planarized stepped-pole layer having greater recess distance than a flare point of a main-pole layer. The perpendicular-magnetic-recording head includes a write element including the main-pole layer having the flare point recessed a first distance from a pole tip of the main-pole layer at an air-bearing surface below the air-bearing surface. The write element includes the stepped-pole layer magnetically coupled with the main-pole layer across an interface between the main-pole layer and the stepped-pole layer. The stepped-pole layer has the leading-edge taper recessed a second distance from the pole tip of the main-pole layer at an air-bearing surface below the air-bearing surface. The second distance of the leading-edge taper is greater than the first distance of the flare point. A surface of the stepped-pole layer is planarized with the interface between the main-pole layer and the stepped-pole layer substantially flat over the leading-edge taper.
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