News

Patterned drive media mastering cracked

posted on 07 February 2008 15:57

Crestec reckons it got the process taped

Electron beam lithography machine maker Crestec has developed its technology to produce patterned media which wil offer much higher disk drive areal densities.

The achievable level is 500Gbit/sq inch with a terabit per square inch thought to be possible by increasing the resolution of the machine's lens.

With patterned media pits in a material on top of a silicon substrate on a master disk are created by burning nanoscale holes in the material using electron beams. When the material is etched the process produces pits in the silicon substrate. They are magnetically isolated and this enables smaller magnetised areas to be packed more closly together than with current perpendicular recording technology.

This master disk is then used to press duplicate actual disks with 10nm islands 35nm apart and laid out in concentric rings.

Read more in a PDF <A HREF="http://www.crestec8.co.jp/englishF/CRESTEC%20abstruct.pdf" Target="_blank">here</A>.

tags: Patterned media Crestec