Patent ID: 6235164
Filing Date: 2001-05-22
Classification: C23C,G11B,H01F,H01J

Abstract:
A method of magnetically orienting a film on a substrate comprising the steps of:mounting a substrate on a substrate holder within a low-pressure processing space of a vacuum chamber;mounting a target of magnetically orientable material within the low-pressure processing space of the vacuum chamber;mounting an electromagnet adjacent to the substrate holder outside the low-pressure processing space of the vacuum chamber;aligning the substrate holder and the electromagnet in different positions along a common axis so that the substrate holder is located along the axis in a position between the target and the electromagnet;powering the electromagnet with an alternating current at a cycle rate less than ten hertz; andusing the electromagnet to produce a uniaxial magnetic field oriented parallel to a surface of the substrate for aligning magnetic domains of a magnetically orientable material on the substrate surface.