AGS-TECH Inc.
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Magnetic Coatings MAGNETIC THIN FILMS are sheets of magnetic material with thicknesses of a few micrometers or less, used in the electronics industry. Magnetic films can be single-crystal, polycrystalline, amorphous, or multilayered in the arrangement of their atoms. Applications include magnetooptic storage, inductive recording media, magnetoresist sensors, and thin-film heads. Both ferro- and ferrimagnetic films are used. The ferromagnetic films are usually transition-metal-based alloys. For example, permalloy is a nickel-iron alloy. The ferrimagnetic films, such as garnets or the amorphous films, contain transition metals such as iron or cobalt and rare earths. The ferrimagnetic properties are advantageous in magnetooptic applications where a low overall magnetic moment can be achieved without a significant change in the Curie temperature. The change in electrical properties, such as the electrical resistance, with a magnetic field is used in sensor elements. The most notable of these in semiconductor technology is the magnetoresist head used in disk storage technology. Very large magnetoresist signals (called giant magnetoresistance) are observed in magnetic multilayers and composites containing a magnetic and nonmagnetic material. Contact AGS-TECH Inc. for details of capabilities. Do you need design assistance ? Do you need prototypes ? Do you need mass manufacturing ? We are here to help you. If you are mostly interested in our engineering and research & development capabilities instead of manufacturing capabilities, then we invite you to visit our sister website http://www.ags-engineering.com |
