Metal working – Method of mechanical manufacture – Electrical device making
Patent
1994-09-09
1996-12-17
Hall, Carl E.
Metal working
Method of mechanical manufacture
Electrical device making
2960315, 2960321, G11B 542
Patent
active
055841163
ABSTRACT:
A method for fabricating a magnetic head includes providing a plurality of magnetic or non-magnetic substrates, forming a plurality of parallel V-shaped grooves symmetrically on two sides of each of the substrates, forming laminated magnetic films by depositing soft magnetic alloy films and insulation films alternately on the two sides of each of the substrates and depositing bonding glass on the laminated magnetic films, stacking the plurality of substrates to form a block, carrying out high temperature bonding on the block of substrates with bonding glass material inserted between the V-shaped grooves or a rectangular bonding glass plate placed on a side surface of the V-shaped groove, cutting the block of stacked substrates to obtain a plurality of core blocks including I-core and C-core blocks, the I-core and the C-core blocks having surface faces and tracks, lapping the surface faces of the I-core and the C-core blocks, forming a winding groove and a glass reinforcement groove on a surface of the C-core block, depositing a non-magnetic material on the surface faces of the I-core and C-core blocks, matching the tracks of the I-core and C-core blocks and inserting glass bars in the winding groove and the reinforcement groove, carrying out high temperature bonding on the I-core and C-core blocks, and cutting the high temperature bonded bars into unit sizes.
REFERENCES:
patent: 5353183 (1994-10-01), Olson
Goldstar Co. Ltd.
Hall Carl E.
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