Title:
スピンバルブ型磁気抵抗効果再生ヘッドおよびその製造方法
Document Type and Number:
Japanese Patent JP4118631
Kind Code:
B2
Abstract:
Spin valve heads with overlaid leads have several advantages over butted contiguous junction designs, including larger signal output and better head stability. However, in any overlaid design there is always present at least one high resistance layer between the GMR layer and the conductive leads. This leads to an effective read width that is greater than the actual physical width. This problem has been overcome by inserting a highly conductive channeling layer between the GMR stack and the conducting lead laminate. This arrangement ensures that, at the intersection between the leads and the GMR stack, virtually all the current moves out of the free layer into the leads thereby providing an effective read width for the device that is very close to the physical read width defined by the spacing between the two leads. A process for manufacturing the device is also described.
Inventors:
Katsu strength Zhu
Young Feng Zheng
Rod lee
Young Feng Zheng
Rod lee
Application Number:
JP2002235843A
Publication Date:
July 16, 2008
Filing Date:
August 13, 2002
Export Citation:
Assignee:
Headway Technologies, Inc.
International Classes:
G11B5/39; H01F10/32; H01L43/08; H01L43/12
Domestic Patent References:
| JP2000285417A | ||||
| JP2001283412A | ||||
| JP2003338014A | ||||
| JP2000207714A |
Attorney, Agent or Firm:
Yasushi Santanzaki