Solid state magnetic field sensor method

Semiconductor device manufacturing: process – Having integral power source

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438604, H01L 2100

Patent

active

061176974

ABSTRACT:
A method for making a magnetoresistive sensing device including depositing an ultrathin active film responsive to changes in magnetic field energy onto a compliant layer of periodic table group III-V semiconductor material on a semiconductor substrate wafer, the compliant layer being capable of retaining strain energy resulting from the layering semiconductor materials with different lattice constants. This method produces a battery operable ultrathin device highly sensitive to changes in magnetic field flux.

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