MAGNETO-RESISTANCE EFFECT HEAD

MAGNETO-RESISTANCE EFFECT HEAD

PURPOSE: To reduce Barkhausen noise and to improve reproduction characteristics by employing single-domain constitution for not only an MR element, but also a soft magnetic film for lateral biasing. CONSTITUTION: An MR head is composed of a center active area and passive areas which are formed adjac...

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1. Verfasser: TOKI KAORU
Format: Patent
Sprache:eng
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INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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description PURPOSE: To reduce Barkhausen noise and to improve reproduction characteristics by employing single-domain constitution for not only an MR element, but also a soft magnetic film for lateral biasing. CONSTITUTION: An MR head is composed of a center active area and passive areas which are formed adjacently on both its sides, and in the center active area, at least three layers which are a lateral bias film, an intermediate layer metal film, and an MR element film formed of soft magnetic films are successively formed. At this time, the MR element film 6 and intermediate layer metal film 5 are formed only in the center active area and the lateral bias film 4 is formed in both the center active area and passive areas; and an antiferromagnetic film 8, a soft magnetic film 9, an electrode base film 10, and an electrode film 11 are formed in order on the lateral bias film 4 in the passive areas, and the antiferromagnetic film 8 makes a switched connection with the soft magnetic film 9 and lateral bias film 4 in the passive areas. Consequently, both the MR element 6 and lateral bias film 4 are longitudinally biased.
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CONSTITUTION: An MR head is composed of a center active area and passive areas which are formed adjacently on both its sides, and in the center active area, at least three layers which are a lateral bias film, an intermediate layer metal film, and an MR element film formed of soft magnetic films are successively formed. At this time, the MR element film 6 and intermediate layer metal film 5 are formed only in the center active area and the lateral bias film 4 is formed in both the center active area and passive areas; and an antiferromagnetic film 8, a soft magnetic film 9, an electrode base film 10, and an electrode film 11 are formed in order on the lateral bias film 4 in the passive areas, and the antiferromagnetic film 8 makes a switched connection with the soft magnetic film 9 and lateral bias film 4 in the passive areas. 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CONSTITUTION: An MR head is composed of a center active area and passive areas which are formed adjacently on both its sides, and in the center active area, at least three layers which are a lateral bias film, an intermediate layer metal film, and an MR element film formed of soft magnetic films are successively formed. At this time, the MR element film 6 and intermediate layer metal film 5 are formed only in the center active area and the lateral bias film 4 is formed in both the center active area and passive areas; and an antiferromagnetic film 8, a soft magnetic film 9, an electrode base film 10, and an electrode film 11 are formed in order on the lateral bias film 4 in the passive areas, and the antiferromagnetic film 8 makes a switched connection with the soft magnetic film 9 and lateral bias film 4 in the passive areas. Consequently, both the MR element 6 and lateral bias film 4 are longitudinally biased.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record>
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subjects INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
title MAGNETO-RESISTANCE EFFECT HEAD
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