Magnetoresistive transducer with four-lead contact

Details Magnetoresistive transducer with four-lead contact Magnetoresistive transducer with four-lead contact

1998-01-13

1999-09-28

Davis, David D.

Dynamic magnetic information storage or retrieval

Head

Hall effect

G11B 539

Patent

active

059598115

ABSTRACT:
A magnetic head includes a magnetoresistive read transducer which comprises a central active region and two end regions. Bias current leads are connected respectively to end regions for current biasing of the transducer. Signal sensing leads is also are connected respectively to end regions for directing sensed voltage to a signal amplifier. The bias current and the sensed signal assume separate electrical paths. The current crowding effect in the bias current path does not affect the signal sensing path. Thus the transducer can sense signal with improved sensitivity and high signal-to-noise ratio. In one embodiment, at each end region, the bias current lead and the signal sensing lead are coplanar and are bifurcated to effectuate separate electrical paths. In another embodiment, the signal sensing lead and the bias current lead are electrically connected together via an electrical feedthrough at each end region, but are dielectrically separated by an insulating layer at other regions.

REFERENCES:
patent: 5027243 (1991-06-01), Gill et al.
patent: 5739987 (1998-04-01), Yuan et al.
patent: 5784772 (1998-07-01), Ewasko et al.
patent: 5793576 (1998-08-01), Gill

Affiliated with

Also associated with

Rating

Magnetoresistive transducer with four-lead contact does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetoresistive transducer with four-lead contact, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetoresistive transducer with four-lead contact will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-710468