Thin film transducer with coil guard segment

Details Thin film transducer with coil guard segment Thin film transducer with coil guard segment

G - Physics

11

B

G11B 5/127 (2006.01) G11B 5/31 (2006.01)

Patent

CA 2115396

A thin film transducer has a top pole formed by ion beam milling, a bottom pole and a multi-turn coil inductively coupled to the poles. The multi-turn coil has an outer dummy turn which is electrically disconnected from the remaining coil segments so that the external electrical connection to the outer portion of the coil is made to an inner segment. During fabrication of the top pole, any damage to the previously formed coil by ion beam milling occurs to the dummy turn, rather than the inner segment to which electrical connection is made. A thin film transformer is provided with the same dummy turn structure.

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