HYBRID BURNISH/GLIDE HEAD WITH ADVANCED AIR BEARING FLY HEIGHT CONTROL RAILS

摘要

A disc burnishing system (110) configured to contact and level irregularities located on a surface of a disc (124) is provided. The system (110) includes a motor (112) to rotate the disc (124) and an armature (116). A slider (100, 200, 300, 400, 500 and 900) is carried on the armature (116) over the surface of the disc (124). The slider (100, 200, 300, 400, 500 and 900) includes at least one raised air bearing rail (228, 230, 328, 330, 428, 430, 528, 530, 928, and 930) disposed on and extending from a bottom surface (236, 336, 436, 536, and 936) that faces the disc (124). At least one burnish pad (232, 332, 432, 532 and 932) is disposed on the bottom surface (236, 336, 436, 536, and 936) and extends towards the disc (124). Each burnish pad (232, 332, 432, 532 and 932) is spaced apart from each raised air bearing rail (228, 230, 328, 330, 428, 430, 528, 530, 928, and 930). In accordance with one embodiment of the system, a defect detection apparatus is operably disposed relative the slider and is utilized to first detect an irregularity before it is burnished.