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US 7,111,384 B2Granted
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.
Claims7
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 a 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 a 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.