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GMR magnetic sensing element having an antiferromagnetic layer extending beyond the track width and method for making the same
   
Document Number
US Patent 7372672
Issued Date
May 13, 2008
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Abstract
A magnetic sensing element with improved magnetic detection output and a method for making the same are provided. In the magnetic sensing element, the length of an upper pinned magnetic layer an upper antiferromagnetic layer in a track width direction is larger than the length of a free magnetic layer in the track width direction. In making the magnetic sensing element, there is no need to remove side portions of the upper pinned magnetic layer and the upper antiferromagnetic layer. The materials of the upper pinned magnetic layer and the upper antiferromagnetic layer are thus prevented from redepositing on two side faces of the free magnetic layer during milling.
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Number of Claims:
5
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Owner
TDK Corporation (Tokyo,JP)
Published
May 13, 2008
Application Number
11/270,087
Filed
November 8, 2005
US Classification
Int'l Classification
G11B   5/39   (20060101)  
Examiner
Attorney/Law Firm
Parent Case
This application is a divisional of application Ser. No.: 10,461,809, filed on Jun. 13, 2003, now U.S. Pat. No. 7,050,276 which claims the benefit of Japanese Patent Application 2002-172147, filed on Jun. 13, 2002, both of which are incorporated herein by reference.
Priority Data
Jun 13, 2002 [JP] 2002-172147
USPTO Field of Search
360/324.11   360/324.12   360/324.1   360/324.2  
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