MAGNETIC FIELD ANNEALING FOR INTEGRATED FLUXGATE SENSORS

A method of magnetic forming an integrated fluxgate sensor includes providing a patterned magnetic core on a first nonmagnetic metal or metal alloy layer on a dielectric layer over a first metal layer that is on or in an interlevel dielectric layer (ILD) which is on a substrate. A second nonmagnetic...

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Hauptverfasser:	LEE DOK WON, MURPHY NEAL THOMAS, EISSA MONA
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES METALLURGY PHYSICS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TESTING
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creator	LEE DOK WON MURPHY NEAL THOMAS EISSA MONA
description	A method of magnetic forming an integrated fluxgate sensor includes providing a patterned magnetic core on a first nonmagnetic metal or metal alloy layer on a dielectric layer over a first metal layer that is on or in an interlevel dielectric layer (ILD) which is on a substrate. A second nonmagnetic metal or metal alloy layer is deposited including over and on sidewalls of the magnetic core. The second nonmagnetic metal or metal alloy layer is patterned, where after patterning the second nonmagnetic metal or metal alloy layer together with the first nonmagnetic metal or metal alloy layer encapsulates the magnetic core to form an encapsulated magnetic core. After patterning, the encapsulated magnetic core is magnetic field annealed using an applied magnetic field having a magnetic field strength of at least 0.1 T at a temperature of at least 150° C.
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subjects	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES METALLURGY PHYSICS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TESTING
title	MAGNETIC FIELD ANNEALING FOR INTEGRATED FLUXGATE SENSORS
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