Shaped magnetoresistive readers

Details Shaped magnetoresistive readers Shaped magnetoresistive readers

1998-03-20

2000-08-08

Lee, Michael G

Registers

Coded record sensors

Particular sensor structure

235453, 360110, 360113, G06K 708

Patent

active

060988800

ABSTRACT:
A magnetoresistive element has a height that extends from the air-bearing surface of a head. The height is determined by a slot in the head extending from the air-bearing surface adjacent the sensor portion at an acute angle to both the air bearing surface and the height of the magnetoresistive element to separate the magnetoresistive element into the sensor portion and a dormant portion. Alternatively, the height is determined by a recess of design depth in the magnetoresistive element at the air bearing surface. Alternatively, the height of the magnetoresistive element is determined by a stepped thickness to the first and second bias current carrying contacts along the height of the magnetoresistive element.

REFERENCES:
patent: 5155643 (1992-10-01), Jones, Jr. et al.
patent: 5157568 (1992-10-01), Katayama et al.
patent: 5546254 (1996-08-01), Gill
patent: 5644228 (1997-07-01), Jeffers et al.
patent: 5669133 (1997-09-01), George
patent: 5821517 (1998-10-01), Fedeli et al.
patent: 5828528 (1998-10-01), Tolman et al.
patent: 5978184 (1999-11-01), Terunuma

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