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Fujitsu announces technology for future hard drive capacity expansion

Fujitsu of America announced another advancement in its research of magnetic recording. Using patterned media technology, Fujitsu was able to achieve a one-dimensional array nanohole pattern with a 25 nanometer pitch. This process could one day enable one terabit per square inch recording on HDDs. Fujitsu also revealed a new development involving perpendicular magnetic recording read/write operation on random patterned media. With this technology, the soft underlayer is used as the PMR media, another important milestone.

A density of one terabit per square inch is about five times greater than the current drive technology on the market. Applying a one terabit areal density figure to today’s drive sizes would give us 3.5” drives capable of storing 5TB or 2.5” notebook drives holding 1.5TB.

Fujitsu first announced innovations with patterned media recording in June 2005. At that time, advancements were made with the introduction of a process to pre-pit aluminum media, resulting in nanoholes with an extremely dense and ordered structure. In addition, a technique called land/groove texturing allowed for the creation of discrete tracks in which the nanoholes could be formed. This progress in patterned media has enabled the development of high capacity hard disk drives, especially in smaller form factors.

This progress in patterned media recording closely follows the November 2006 Fujitsu announcement regarding the optical element being developed for thermal assisted recording, another promising advancement for future capacity increases.



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RE: So what
By Oregonian2 on 1/24/2007 3:00:31 PM , Rating: 2
*ONE* hour of video from my video camera takes up 13 GB. On my last vacation trip, I took 12 hours worth. And that's just the raw video for one trip, let alone edited versions. I'm an amateur photographer still using film. When I digitize ONE image (at 5400 dpi) in 16-bit mode, just ONE photo takes a significant portion of a Gigabyte, and I've taken many thousands of photos. I don't delete all my incoming email (do delete SPAM). My just my email program's (Thunderbird) directory is 7.5 Gb. and is continuing to grow. Wife's digital camera photos all collect on the PC as well. That's only about 20 GB so far, wait until she gets a next generation one.


"I'm an Internet expert too. It's all right to wire the industrial zone only, but there are many problems if other regions of the North are wired." -- North Korean Supreme Commander Kim Jong-il

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