公开(公告)号：US08493683B2

公开(公告)日：2013-07-23

申请号：US13289399

申请日：2011-11-04

申请人： Chiu ming Lueng ,  Mankit Lee ,  Cheukwing Leung ,  Ju ren Ding ,  Rong kwang Ni

发明人： Chiu ming Lueng ,  Mankit Lee ,  Cheukwing Leung ,  Ju ren Ding ,  Rong kwang Ni

IPC分类号： G11B21/02 ,  G01R33/12

CPC分类号： G11B5/455

摘要： Measuring method of a magnetic head includes (a) placing the magnetic head at normal position, defining a first direction parallel to an air bearing surface and two shielding layers of the magnetic head, and defining a second direction perpendicular to the first direction; (b) tilting the magnetic head at an angle to the second direction, applying a plurality of first magnetic fields with different intensities in the first direction, and measuring out a first output parameter curve; (c) repeating the step (b) with different angles and measuring out a plurality of first output parameter curves; (d) calculating a plurality of pinned direction tilt ratios that a pinned direction of a pinned layer of the magnetic head tilts towards the second direction according to the parameter curves; and (e) calculating a pinned direction tilt angle that the pinned direction tilts towards the second direction according to the pinned direction tilting ratios.

摘要翻译： 磁头的测量方法包括（a）将磁头放置在正常位置，限定平行于空气支承表面的第一方向和磁头的两个屏蔽层，并限定垂直于第一方向的第二方向; （b）使磁头与第二方向成一角度倾斜，在第一方向施加多个具有不同强度的第一磁场，并测量第一输出参数曲线; （c）以不同的角度重复步骤（b）并测量多个第一输出参数曲线; （d）根据所述参数曲线计算所述磁头的被钉扎层的钉扎方向朝向所述第二方向倾斜的多个钉扎方向倾斜比; 以及（e）根据被钉扎方向倾斜比计算销钉方向朝向第二方向倾斜的钉扎方向倾斜角度。