Patent ID: 6110330
Filing Date: 2000-08-29
Classification: C23C,G11B,Y10S

Abstract:
A process for bonding lubricant on a magnetic disk of a hard disk drive comprising the following steps:controlling atmosphere conditions of a sputtering process which includes a plurality of gases;covering the landing zone of said magnetic disk with a first mask, and exposing the data zone of said magnetic disk;forming an overcoat on the data zone of said magnetic disk by sputtering; removing said first mask;changing said atmosphere conditions of said sputtering process;covering the data zone of said magnetic disk with a second mask, and exposing the landing zone of said magnetic disk;forming another overcoat on the landing zone of said magnetic disk by sputtering;removing said second mask; andcoating lubricant on the whole surface of said magnetic disk including its landing zone and data zone to form a lubricant layer with a bonded lubricant layer and a free lubricant layer.