Sensor having moveable cladding suspended near a magnetic...

Details Sensor having moveable cladding suspended near a magnetic... Sensor having moveable cladding suspended near a magnetic...

2006-10-19

2009-10-13

Patidar, Jay M (Department: 2862)

Electricity: measuring and testing

Magnetic

Magnetometers

Reexamination Certificate

active

07602177

ABSTRACT:
An apparatus (46, 416, 470) is provided for sensing physical parameters. The apparatus (46, 416, 470) comprises a magnetic tunnel junction (MTJ) (32, 432), first and second electrodes (36, 38, 426, 434), a magnetic field source (MFS) (34, 445, 476) whose magnetic field (35) overlaps the MTJ (32, 432) and a moveable magnetic cladding element (33, 448, 478) whose proximity (43, 462, 479, 479′) to the MFS (34, 445, 476) varies in response to an input to the sensor. The MFS (34, 445, 476) is located between the cladding element (33, 448, 478) and the MTJ (32, 432). Motion (41, 41′, 41-1, 464, 477) of the cladding element (33, 448, 478) relative to the MFS (34, 445, 476) in response to sensor input causes the magnetic field (35) at the MTJ (32, 432) to change, thereby changing the electrical properties of the MTJ (32, 432). A one-to-one correspondence (54) between the sensor input and the electrical properties of the MTJ (32, 432) is obtained.

REFERENCES:
patent: 4916393 (1990-04-01), Crescini et al.
patent: 5900729 (1999-05-01), Moser et al.
patent: 5925818 (1999-07-01), Cleveland et al.
patent: 6657431 (2003-12-01), Xiao
patent: 6714442 (2004-03-01), Nahas
patent: 6740947 (2004-05-01), Bhattacharyya et al.
patent: 6897650 (2005-05-01), Black et al.
patent: 2004/0023365 (2004-02-01), Engel et al.
Li et al. “MEMS Microbridge Vibration Monitoring Using Spin-Valve Sensors,” IEEE Transactions on Magnetics, vol. 38, issue 5, pp. 3371-3373, 2002.
Papautsky et al., “A Low-Temperature IC-Compatible Process for Fabricating Surface-Micromachined Metallic Microchannels,”. J. of MEMS, vol. 7, No. 2, pp. 267-273, 1998.

Affiliated with

Also associated with

Rating

Sensor having moveable cladding suspended near a magnetic... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sensor having moveable cladding suspended near a magnetic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sensor having moveable cladding suspended near a magnetic... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4125349