Patent Number: 8,585,912

Title: System, method and apparatus for batch vapor deposition of adhesion promoter for manufacturing discrete track media and bit-patterned media, and mono-molecular layer lubricant on magnetic recording media

Abstract: A batch vapor deposition process for applying adhesion promoter during manufacturing of nanoimprinted discrete track media and bit-patterned media, and mono-molecular layer lubricant on magnetic recording media are disclosed. The adhesion promoter is simultaneously coated on both sides of numerous disk substrates, and minimal solution is wasted. In another step, the lubricant is applied at a uniform thickness that is on the order of a single molecular layer. The lubricant is also applied on the entire disk surfaces while processing multiple disks at a time. Batch processing increases throughput, and vapor lubricant reduces costs compared to conventional techniques. Limited air exposure controls bonding and monolayer adsorption guarantees uniformity.

Inventors: Guo; Xing-Cai (Tracy, CA), Waltman; Robert (Gilroy, CA), Wu; Tsai-Wei (San Jose, CA)

Assignee: HGST Netherlands B.V.

International Classification: B44C 1/22 (20060101)

Expiration Date: 1/19/12018