公开(公告)号：US06995960B2

公开(公告)日：2006-02-07

申请号：US09820047

申请日：2001-03-28

申请人： Yoshihiko Seyama ,  Atsushi Tanaka ,  Keiichi Nagasaka ,  Yutaka Shimizu ,  Shin Eguchi ,  Hitoshi Kanai ,  Reiko Kondo ,  Hitoshi Kishi ,  Junya Ikeda

发明人： Yoshihiko Seyama ,  Atsushi Tanaka ,  Keiichi Nagasaka ,  Yutaka Shimizu ,  Shin Eguchi ,  Hitoshi Kanai ,  Reiko Kondo ,  Hitoshi Kishi ,  Junya Ikeda

IPC分类号： G11B5/127

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G01R33/093 ,  G11B5/3903 ,  G11B2005/3996 ,  H01F10/3259 ,  H01F10/3268 ,  H01F10/3295

摘要： Disclosed herein is a spin valve magnetoresistive sensor including a first conductor layer, a free ferromagnetic layer provided on the first conductor layer, a nonmagnetic intermediate layer provided on the free ferromagnetic layer, a pinned ferromagnetic layer provided on the nonmagnetic intermediate layer, an antiferromagnetic layer provided on the pinned ferromagnetic layer, and a second conductor layer provided on the antiferromagnetic layer. At least one of the free ferromagnetic layer and the pinned ferromagnetic layer has a thickness larger than that providing a maximum resistance change rate or resistance change amount in the case of passing a current in an in-plane direction of the at least one layer. That is, the thickness of at least one of the free ferromagnetic layer and the pinned ferromagnetic layer falls in the range of 3 nm to 12 nm.

公开(公告)号：US06754052B2

公开(公告)日：2004-06-22

申请号：US10107084

申请日：2002-03-27

申请人： Hiroshi Asida ,  Shin Eguchi ,  Atsushi Tanaka ,  Reiko Kondo ,  Yutaka Shimizu

发明人： Hiroshi Asida ,  Shin Eguchi ,  Atsushi Tanaka ,  Reiko Kondo ,  Yutaka Shimizu

IPC分类号： G11B5127

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3903 ,  G11B5/3909 ,  G11B2005/3996 ,  Y10T29/49046

摘要： A magnetoresistive head including a first magnetic shield, a first electrode terminal provided on the first magnetic shield and having a first width, and a magnetoresistive film provided on the first electrode terminal and having a second width less than or equal to the first width. The magnetoresistive head further includes a second electrode terminal provided on the magnetoresistive film and having a third width less than or equal to the second width, and a second magnetic shield provided on the second electrode terminal. Preferably, the magnetoresistive head further includes a plug electrode for connecting the second electrode terminal to the second magnetic shield, and a plug side wall protective insulating film for covering a side wall of the plug electrode.

摘要翻译： 一种磁阻头，包括第一磁屏蔽，设置在第一磁屏蔽上并具有第一宽度的第一电极端子和设置在第一电极端子上并具有小于或等于第一宽度的第二宽度的磁阻膜。 磁阻头还包括设置在磁阻膜上并具有小于或等于第二宽度的第三宽度的第二电极端子和设置在第二电极端子上的第二磁屏蔽。 优选地，磁阻头还包括用于将第二电极端子连接到第二磁屏蔽的插头电极和用于覆盖插头电极的侧壁的插头侧壁保护绝缘膜。