首页>
外国专利>
Method for selectively sensing and removing asperities from hard disk drive media utilizing active thermally controlled flying heights
Method for selectively sensing and removing asperities from hard disk drive media utilizing active thermally controlled flying heights
展开▼
机译:利用主动热控浮动高度从硬盘驱动器介质中选择性地检测和去除凹凸的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method for selectively sensing and removing asperities from the surface of hard disk drive media is disclosed. A thermally controlled flying height burnish slider is flown on a test stand with its thermal flying height control deactivated. The burnish slider flies at a nominal flying height over the surface of the media to remove any existing loose particles from the surface. A glide slider coupled to a PZT sensor is then flown over the surface of the media, the PZT sensor head mapping locations of any asperities on the surface of the media. The thermal flying height controlled burnish slider is next flown over the surface of the media with the thermal flying height control activated. The thermal flying height control is actuated when a mapped location of an asperity on the surface is proximate to the burnish slider, causing the burnish slider to protrude, wearing off the asperity.
展开▼