Thin film magnetic head having spiral coils and manufacturing method thereof
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United States of America Patent
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Aug 1, 2006
Grant Date -
Jul 21, 2005
app pub date -
Jan 20, 2004
filing date -
Jan 20, 2004
priority date (Note) -
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Abstract
The invention is directed to improvement of a write element of a thin film magnetic head. In the write element, a lower coil surrounds in a spiral form a back gap portion, arranged within a height of a lower pole. An upper coil is disposed above the lower coil, surrounding in a spiral form the back gap portion and arranged within a height of an upper pole. A gap film is at an intermediate level in the pole length that is defined by the height of the lower pole and the height of the upper pole.
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