Colloquium - Jeff Childress (HGST/Western Digital) - Nanotechnology and Future of the Hard Disk Drive

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January 28, 2014
4:00PM - 5:00PM
Location
1080 Physics Research Building - Smith Seminar Room - reception at 3:45 pm in the Atrium

Date Range
Add to Calendar 2014-01-28 16:00:00 2014-01-28 17:00:00 Colloquium - Jeff Childress (HGST/Western Digital) - Nanotechnology and Future of the Hard Disk Drive

Hard disk drives using magnetic recording are likely among the most complex devices using nanotechnology.  Today’s commercial hard disk drives can store information at > 500 Gbit/in2, with data bits < 65nm x 15nm, read sensor dimensions < 60nm x 30nm, and the recording head “flying” a few nanometers above the nanostructured recording disk. To maintain this technological evolution, every facet of the magnetic recording system must be continuously reduced in dimensions while maintaining adequate signal-to-noise ratio for writing and reading information.  I will review current technologies and key challenges in the development of next generation HDD’s approaching 1 Tb/in2, including recording physics, magnetic media materials and write-head geometry, read sensor technology and dimensions, and overall system performance.  I will also discuss the science and technology of advanced read and write components that are aimed at further advancing magnetic storage towards 10 Tb/in2.
 

1080 Physics Research Building - Smith Seminar Room - reception at 3:45 pm in the Atrium Department of Physics physics@osu.edu America/New_York public
Description

Hard disk drives using magnetic recording are likely among the most complex devices using nanotechnology.  Today’s commercial hard disk drives can store information at > 500 Gbit/in2, with data bits < 65nm x 15nm, read sensor dimensions < 60nm x 30nm, and the recording head “flying” a few nanometers above the nanostructured recording disk. To maintain this technological evolution, every facet of the magnetic recording system must be continuously reduced in dimensions while maintaining adequate signal-to-noise ratio for writing and reading information.  I will review current technologies and key challenges in the development of next generation HDD’s approaching 1 Tb/in2, including recording physics, magnetic media materials and write-head geometry, read sensor technology and dimensions, and overall system performance.  I will also discuss the science and technology of advanced read and write components that are aimed at further advancing magnetic storage towards 10 Tb/in2.