METHOD FOR MAKING LAMINATE MAGNETIC FILMS Russian patent published in 2004 - IPC

Abstract RU 2233350 C2

FIELD: processes and equipment for deposition of thin films, possibly used at making magnetic pickups.

SUBSTANCE: method comprises steps of layer-by- layer deposition of magnetic and dielectric materials in vacuum while applying outer magnetic field to deposition plane and heating substrate; further annealing of the whole structure; depositing layers of alloy Fe - Ni at rate no less than 30 Е/s and layers of silica - at rate no less than 250 Е/s in condition of technical vacuum onto substrate heated up to 280 -300 C; annealing prepared structure for 30 min at the same temperature.

EFFECT: enhanced operational characteristics of magnetic field pickup, possibility for making magnetic layers with equal and small coercivity, improved efficiency of method due to reduced operation cycle.

2 tbl, 1 ex

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RU 2 233 350 C2

Authors

Gusev V.K.

Tulina L.I.

Utkin V.P.

Dates

2004-07-27Published

2002-08-05Filed