Recording head design for identifying reader-to-permanent...

Details Recording head design for identifying reader-to-permanent... Recording head design for identifying reader-to-permanent...

2005-04-12

2005-04-12

Evans, Jefferson (Department: 2652)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

C360S324120

Reexamination Certificate

active

06879471

ABSTRACT:
A spin valve head configured to operate in a Current-In-Plane (CIP) mode is provided. The spin valve head has an air bearing surface (ABS) and a top and a bottom shield separated by a central region proximate the ABS. A sensor, positioned in the central region, has a proximal end and a distal end, with the proximal end forming a portion of the ABS. A permanent magnet is positioned in the central region and proximate the distal end of the sensor. The permanent magnet being separated from the sensor by a gap layer. The top shield, the bottom shield and the permanent magnet are electrically coupled together to allow for electrical testing of the spin valve head.

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