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US 2004/0103523 A1Published application
Method for manufacturing magnetic head including coil
AssigneeAlps Electric Co., Ltd.
InventorMinoru Yamada
Life of this patent
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Abstract
A method for manufacturing a magnetic recording head includes the steps of forming a first lifting layer and a second lifting layer on a bottom core layer, forming an inorganic insulating layer in a gap between the first lifting layer and the second lifting layer, forming a groove in the inorganic insulating layer to form a coil layer, and forming the coil layer in the groove and over the groove by plating.
Claims8
A method for manufacturing a magnetic head, comprising the steps of:
- (a) forming a bottom core layer by plating;
- (b) forming a first lifting layer comprising a magnetic material and a second lifting layer comprising a magnetic material such that a gap is formed between the first lifting layer and the second lifting layer in a first direction;
- (c) forming an inorganic insulating layer on the bottom core layer;
- (d) forming a groove having a plurality of turns in the inorganic insulating layer, the groove being disposed around the second lifting layer and the front portion of the groove being disposed between the first lifting layer and the second lifting layer;
- (e) forming a coil layer, having a plurality of turns and having a thickness larger than the depth of the groove, in the groove and the over the groove by continuous plating;
- (f) insulating each area between the turns of the coil layer with an insulating material;
- and
- (g) forming a gap layer comprising a nonmagnetic material, and a top core layer comprising a magnetic material, the top core layer being connected to the second lifting layer and facing the first lifting layer with the gap layer provided therebetween.
5 more elements
Dependencies are inferred from the claim text.