The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 05, 2012
Filed:
Mar. 12, 2009
Malika D. Carter, San Jose, CA (US);
Yun-lin Hsiao, Pleasanton, CA (US);
Thomas E. Karis, Aromas, CA (US);
Bruno Marchon, Palo Alto, CA (US);
Ullal V. Nayak, San Jose, CA (US);
Christopher Ramm, San Jose, CA (US);
Wong K. Richard, San Jose, CA (US);
Malika D. Carter, San Jose, CA (US);
Yun-Lin Hsiao, Pleasanton, CA (US);
Thomas E. Karis, Aromas, CA (US);
Bruno Marchon, Palo Alto, CA (US);
Ullal V. Nayak, San Jose, CA (US);
Christopher Ramm, San Jose, CA (US);
Wong K. Richard, San Jose, CA (US);
Hitachi Global Storage Technologies Netherlands, B.V., Amsterdam, NL;
Abstract
A polishing system and associated methods are described for polishing a magnetic disk used in a disk drive system. The polishing system includes a polishing film that is used to polish the magnetic disk. The polishing system also includes an actuator operable to move the polishing film across a surface of the magnetic disk to polish the magnetic disk. The polishing system also includes a pad having at least one protrusion extending from a surface of the pad. The protrusion is configured to contact the polishing film and press the polishing film against the magnetic disk. The protrusion is operable to compress to about the surface of the pad when in contact with the polishing film. Once polishing is complete, the pad retracts from the polishing film and the protrusion extends from the pad, reducing the adhesion force between the pad and the polishing film.