| 摘要 |
A storage device and method use a head that is fabricated using photolithography, and the head is purposely powered up during a material removal process, such as lapping, so that the head's expansion (that would be formed on being powered up during normal usage in a drive) is planarized. On being cooled to room temperature, the head has a concave shape in a pole tip region, the concavity indicative of a volume occupied by material that formed the head expansion, and that has been removed by planarization. Thereafter, the head is powered up in a storage device and method, so that the head has a surface other than flat but within a predetermined range, and the head supplies a signal through the surface to a recording medium.
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