An emerging field where rapid thermal processing (RTP) is now rapidly finding its first acceptance is in the industrial manufacturing of thin-film head devices for magnetic recording. Here soft-magnetic thin-film flux guide structures (usually composed of high-moment alloys containing iron, etc.) are applied onto ceramic substrate wafers (such as Al_2O_3-TiC) of sizes up to 150 mm and subsequently 'activated' by heating and cooling in a magnetic field.
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