Method of fabricating magnetic bubble memory device

Details Method of fabricating magnetic bubble memory device Method of fabricating magnetic bubble memory device

1982-05-05

1985-12-03

Morgenstern, Norman

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

427127, 365 36, B05D 306, G11C 1908

Patent

active

045565830

ABSTRACT:
A method of fabricating a magnetic bubble memory device is disclosed in which a desired portion of a surface region in a magnetic bubble film for magnetic bubbles is implanted with hydrogen ions with an ion dose of 2.5.times.10.sup.16 to 1.times.10.sup.17 cm.sup.-2, the surface of magnetic bubble film thus formed is covered with a film, and then the magnetic bubble film is annealed. According to this method, a reduction in propagation margin due to annealing is effectively prevented, and it is possible to form a magnetic bubble memory device of the contiguous disk type which is excellent in thermal stability.

REFERENCES:
patent: 4247781 (1981-01-01), Bayer et al.
IEEE Transactions on Magnetics, vol. MAG-16, No. 1, Jan. 1980, pp. 93-98, Kie Y. Ahn et al., "Fabrication of Contiguous-Disk Magnetic Bubble Devices".

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