Method of making a magnetic recording medium

Details Method of making a magnetic recording medium Method of making a magnetic recording medium

1982-04-15

1984-05-29

Pianalto, Bernard D.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

204192M, 427129, 427130, 427132, B05D 306, B05D 512, H01F 1002

Patent

active

044515014

ABSTRACT:
A magnetic metal deposition material contained in a hearth is heated and evaporated in a vacuum to form a flow of vapor, which is then ionized and converged toward a predetermined deposition surface of a flexible substrate. The flexible substrate is moved obliquely downwardly along a convex course by sliding contact with the curved surface a fixed curved guiding body between a pair of guide rollers located at different heights above the hearth. The fixed curved guiding body communicates with a coolant source for cooling the substrate moving in contact therewith and may be provided with oscillators. Thus a thin film of the magnetic metal is deposited on the convex surface of the substrate.

REFERENCES:
patent: 3342633 (1967-09-01), Bate et al.
patent: 4220117 (1980-09-01), Shinohara
patent: 4343834 (1982-08-01), Sato et al.

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