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September 28, 2011

Mtg: Evolution of Perpendicular Magnetic Recording Media and Upcoming Challenges

by @ 10:11 am. Filed under ALL, Computers/Software, NanoEngineering, Optics/Displays
 

TUESDAY October 25, 2011
SCV Magnetics Chapter
Speaker: Gerardo Bertero, Ph.D, Western Digital Corp.
Time: Networking and cookies at 7:00 PM; Presentation at 7:30 PM
Cost: none
Place: Western Digital, 1710 Automation Parkway, San Jose
RSVP: not required
Web: ewh.ieee.org/r6/scv/mag

Since the 2005 commercial introduction of perpendicular magnetic recording in hard disk drives, the recording areal density has increased by a factor of 5 and it is likely to reach a factor of 10 on current technology extension before new paradigms need to be invoked.? From the media perspective, significant structural evolution took place to enable such areal density growth.? Surprisingly, however, most of this growth has occurred with little change in the media grain size.? This loss of scaling in such an important media feature cannot continue much further and imparts great pressure for developing new materials and processes to address obvious shortcomings.? Similar to the grain size example, scaling of all other media features require much needed innovation. In this talk, we will discuss some of the most relevant evolutionary changes in PMR media, the short-term challenges required for extending current technology and new challenges associated with future technology candidates such as energy assisted recording and bit patterned media.

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