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US 2004/0169966 A1Published application
Elimination of electric-pop noise in MR/GMR device
AssigneeSAE Magnetics (H.K.) Ltd.
InventorsYong Shen, Kwok Kam Leung, Hiroshi Kiyono, Tetsuo Miyazaki
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Abstract
The invention relates to a magnetic recording head comprising: a bottom shield; a top shield; and AMR device with MR and SAL separated by a thin insulating layer; a first insulting gap layer between said bottom shield and said AMR; a second insulating gap layer between said AMR and said top shield; a conductive layer contact at one end region of said MR and SAL. Furthermore, magnetic recording heads with GMR device free of electric-pop noise also are disclosed.
Claims10
A magnetic recording head, comprising:
- a magnetoresistive layer having a first end and a second end;
- a soft-adjacent magnetic transverse bias layer (SAL) having a first end and a second end;
- an insulating layer arranged between said magnetoresistive layer and said SAL;
- a first conductive layer electrically contacting said first end of said magnetoresistive layer and said first end of said SAL;
- a second conductive layer electrically contacting said second end of said magnetoresistive layer and said second end of said SAL;
- the magnetoresistive layer supporting a first current path between the first and second conductive layers;
- and
- the SAL supporting a second current path between the first and second conductive layers;
- wherein the second current path is substantially longer than the first current path.
6 more elements
Dependencies are inferred from the claim text.