Jul 19, 1999
The new record of 23.8 Gb/in2 equates to a storage capacity of almost 32 Gigabytes on a single 3.5 inch disc. This capacity is adequate to store over 22 days of continuous MP3 music files.
The demonstration which employed internally developed advanced GMR recording heads and low noise multilayer thin film media was the result of a team effort by Seagate's Recording Head and Recording Media Operations along with Seagate's Advanced Concepts Lab in Fremont, CA.
"This achievement is especially important because of the extremely high linear bit density demonstrated using conventional longitudinal recording," said Tom Porter, Seagate's Chief Technical Officer. "The whole industry has been concerned about the potential onset of superparamagnetic effects that could slow the rate of data storage capacity growth. The most striking aspect of this demonstration is that conventional disc drive architectures and technologies, combined with Seagate manufacturing processes, were leveraged to much greater areal density capability and substantial data rate."
"As we continue exploring consumer applications for disc-based home entertainment devices, the appetite for capacity seems insatiable," said Bob Teal, Seagate's vice president of Consumer Solutions. "This breakthrough by Seagate's scientists provides the technology to deliver extreme capacities that could store more than a hundred hours of video programming, CD-quality music, and game console software within a single consumer electronics product."
Some key parameters of the demonstration are: a track density of 45,800 tracks per inch, a linear bit density of 520,000 bits per inch, a raw data rate of 159 Mb/s, using a merged, untrimmed GMR read/inductive write head, and a multilayer thin film disc featuring exceptionally narrow magnetic grain size distribution. The head/media separation was 1.1 microinches; the on track error rate was less than 1 error in 10 million bits read.
SEAGATE TECHNOLOGY will disclose additional details of this demonstration on August 10, 1999, at the Magnetic Recording Conference in San Diego, CA.
Seagate Technology, Inc. is a leading provider of technology and products enabling people to store, access, and manage information. The Company is committed to providing best-in-class products to help people get information when, where and how they want it. Seagate is the world's largest manufacturer of disc drives, magnetic discs and read-write heads, an innovator in tape drives, and a leading developer of Enterprise Information Management software. Seagate can be found around the globe and at http://www.seagate.com. For automated news, stock and financial information by phone, dial toll-free 877-SEG-NYSE. Outside the U.S. and Canada, dial 760-704-4368.
Seagate and Seagate Technology are registered trademarks of Seagate Technology, Inc. All trademarks are the property of their respective owners.