Method and apparatus for measuring flying height of the slider and in-situ monitoring a slider-disk interface

摘要: A method and apparatus for measuring the flying height of a slider above disk surface in-situ monitoring interface comprising steps of: providing beam light; having substantially transparent substrate thin film layer, carrying read/write element, reflective surface; an air bearing thickness d 3 supporting disk; directing light to through disk, then slider; one intensity phase information reflected from provide indication and/or layer.