A acoustic damping pad is provided. The acoustic damping pad includes a first surface and an opposing second surface that are defined by a periphery. A first set of perforations extend between the first surface and the second surface of the acoustic damping pad. Each adjacent perforation in the first set of perforations is uniformly spaced apart from each other across a first select surface area of the first surface and across a corresponding first select surface area of the opposing second surface to form a uniform pattern.

 
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> Perpendicular magnetic recording head capable of suppressing PTP and obtaining stabilized recording medium and method of manufacturing the same

> Magnetic head assembly, magnetic head drive apparatus and manufacturing method of magnetic head assembly

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