Breakthrough Achievement for One Terabit/Inch² HDD Recording Density

Jan 18, 2007

Fujitsu today announced a breakthrough in magnetic recording. Using patterned media technology, Fujitsu was able to achieve a one-dimensional array nanohole pattern with an unprecedented 25 nanometer pitch. This dramatic new achievement was presented at the 10th Joint MMM/Intermag Conference in Baltimore, MD.

This revolutionary accomplishment came from the joint work of Yamagata Fujitsu Limited, Fujitsu Laboratories Limited and Kanagawa Academy of Science and Technology (KAST). With this latest patterned media announcement, Fujitsu has successfully realized a nanohole pattern with 25 nanometer pitch, a process which will enable one Terabit/in2 recording on HDDs in the future.

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.

During the MMM/Intermag conference, Fujitsu also revealed a new development involving perpendicular magnetic recording (PMR) read/write operation on random patterned media. With this technology, the soft underlayer (SUL) is used as the PMR media, another important milestone. 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. These accomplishments indicate that Fujitsu now possesses a variety of enabling technology options that allow for the engineering of hard disk drives with increased areal densities.

Growing demand for HDDs with high capacities, especially in small form factors, are being generated from both the enterprise and mobile arenas. Manufacturers of database servers and NAS and SAN systems are seeking these models so that they can create products that feature greater amounts of storage space, but which require less power and generate less heat. Notebook and consumer electronic (CE) companies covet these hard disk drives so they can design the sleek, high-performance products that are so popular in the mass market.

Source: Fujitsu

Explore further: Some British Airways frequent flier accounts miles breached

add to favorites email to friend print save as pdf

Related Stories

Fujitsu Introduces First 4-Channel HDMI Connector Ports

Nov 14, 2007

Fujitsu has introduced the world´s first embedded FRAM for digital TVs that allow simultaneous use of a 4-Channel HDMI connector ports. The innovation will reduce the number of pars, mounting space and programming ...

Recommended for you

DARPA seeks new positioning, navigation, timing solutions

17 hours ago

The Defense Advanced Research Projects Agency (DARPA), writing about GPS, said: "The military relies heavily on the Global Positioning System (GPS) for positioning, navigation, and timing (PNT), but GPS access is easily blocked by methods such as jamming. In addition, many environments in which our mil ...

Future US Navy: Robotic sub-hunters, deepsea pods

21 hours ago

The robotic revolution that transformed warfare in the skies will soon extend to the deep sea, with underwater spy "satellites," drone-launching pods on the ocean floor and unmanned ships hunting submarines.

Festo has BionicANTs communicating by the rules for tasks

Mar 27, 2015

Germany-based automation company Festo, focused on technologies for tasks, turns to nature for inspiration, trying to take the cues from how nature performs tasks so efficiently. "Whether it's energy efficiency, ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.