| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for measuring neck height/gap depth of a thin film magnetic head to accurately and easily measure the neck height and gap depth of a write magnetic pole for the thin film magnetic head whose floating surface position is determined based on the width of a lapping guide. SOLUTION: A first reference marker 28 is formed at a position away from the design position of a rear edge of the lapping guide by a first preset distance e. A second reference marker 44 is formed away from the design position of a leading edge of the neck by a second preset distance g by calculating a distance f between an actual position of the rear edge 84a of the lapping guide 84 and the first reference marker 28, and a difference (f-e) from the first preset distance e. An actual neck height is calculated by calculating a distance h between an actual position of the leading edge 80c of the neck and the second reference marker 44, and a difference h-g from the second preset distance g, and adding the f-e and h-g on the design neck height. COPYRIGHT: (C)2008,JPO&INPIT
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