公开(公告)号：WO0207153A3

公开(公告)日：2002-11-07

申请号：PCT/US0119729

申请日：2001-06-21

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： MACK ANTHONY M ,  PUST LADISLAV ,  REA CHRISTOPHER J ,  GANGOPADHYAY SUNITA ,  RYAN PATRICK J

IPC: G11B5/00 ,  G11B5/11 ,  G11B5/31 ,  G11B5/39

CPC classification number: G11B5/3903 ,  G11B5/11 ,  G11B5/3113 ,  G11B5/3967 ,  G11B2005/0016

Abstract: A read/write head (110, 214) includes a bottom shield (203) and a shared shields (204, 300, 302, 404, 406, 504, 506). The shared shield includes a first domain (320, 330, 416, 418) and a plurality of closure domains (321, 323, 325, 331, 333, 335). The read/write head also includes a magnetoresistive sensor (205) deposited adjacent an air bearing surface (222) between the bottom shield and the shared shield. The magnetoresistive sensor includes a magnetoresistor (308, 310, 420, 422, 520, 522) aligned with the first domain. Non-magnetic material (224) separates the magnetoresistive sensor from the bottom shield and the shared shield. The shared shield includes a shaped feature (400, 402, 500, 502, 600, 602, 604) that defines an unambiguous direction of magnetization for the first domain.

Abstract translation: 读/写头（110,214）包括底部屏蔽（203）和共享屏蔽（204,300,302,404,406,504,506）。 共享屏蔽包括第一域（320,330,416,418）和多个闭合域（321,323,325,331,333,335）。 读/写头还包括邻近底屏蔽与共享屏蔽之间的空气支承表面（222）沉积的磁阻传感器（205）。 磁阻传感器包括与第一域对齐的磁电阻器（308,310,420,422,520,522）。 非磁性材料（224）将磁阻传感器与底部屏蔽和共享屏蔽分隔开。 共享屏蔽包括定义第一域的磁化的明确方向的成形特征（400,402,500,502,60,600,602,604）。