Unshielded horizontal magnetoresistive head and method of...

Details Unshielded horizontal magnetoresistive head and method of... Unshielded horizontal magnetoresistive head and method of...

G - Physics

11

B

G11B 5/127 (2006.01) G07D 7/04 (2006.01) G07D 7/20 (2006.01) G11B 5/09 (2006.01) G11B 5/33 (2006.01) G11B 5/39 (2006.01)

Patent

CA 2095035

An unshielded horizontal magnetoresistive head (1) for magnetic sensing and reading devices. The horizontal unshielded magnetoresistive head (1) is comprised of two magnetoresistive elements (2) separated by a gap (10), and a conductive cross member (3) which electrically connects the magnetoresistive elements (2) together and to a common electrical point such as system ground (4). A differential voltage sensing circuit (35) is connected across the magnetoresistive elements (2) for sensing voltage variations when magnetic data is sensed by the head (1). The present invention further facilitates a more simplified fabrication process which results in cost savings and more efficient fabrication methods and procedures.

Tête magnétorésistive horizontale non blindée (1) pour appareils de détection et de lecture magnétiques. La tête magnétorésistive non blindée (1) comprend deux éléments magnétorésistifs (2) séparés par un entrefer (10), et un élément traversant conducteur (3) qui connecte électriquement les éléments magnétorésistifs (2) entre eux et à un point électrique commun, tel que la terre du système (4). Un circuit différentiel détecteur de tension (35) est relié entre les éléments magnétorésistifs (2) pour détecter les variations de tension lorsque les données magnétiques sont détectés par la tête (1). La présente invention simplifie le processus de fabrication, ce qui se traduit par une réduction des coûts et par des procédés et des opérations de fabrication plus performants.

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