Metal treatment – Process of modifying or maintaining internal physical... – Magnetic materials
Patent
1988-09-12
1990-07-31
Andrews, Melvyn J.
Metal treatment
Process of modifying or maintaining internal physical...
Magnetic materials
148304, 2041922, 427130, C21D 104
Patent
active
049448056
ABSTRACT:
A method of heat treating an amorphous soft magnetic (ASM) film for use in a device that utilizes magnetism and is fabricated by depositing two or more layers of an ASM film, and an associated oxide film and conductive metal film, on a substrate. Typically, the substrate is made of an oxide. More specifically, the method involves: performing a heat treatment after each layer of the ASM film has been deposited, at a temperature lower than the crystallization temperature and the Curie point of the ASM film in a static magnetic filed applied either in a direction generally perpendicular to the direction in which a high magnetic permeability for high frequency is to be finally attained in the ASM film or in the principal direction in which the high permeability for high frequency is desired; performing a heat final treatment, after all of the layers of the ASM film have been deposited, at a temperature equal to or lower than the temperature for the previous heat treatment in a static magnetic field applied either in the principal direction or in a direction generally perpendicular thereto, the magnitude of the uniaxial magnetic anisotropy to be imparted to the ASM film being controlled by the temperature and duration of the final heat treatment.
Andrews Melvyn J.
Fuji Photo Film Co. , Ltd.
LandOfFree
Method of heat treatment amorphous soft magnetic film layers to does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of heat treatment amorphous soft magnetic film layers to , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of heat treatment amorphous soft magnetic film layers to will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1396930