Feeds

HAMR knocks perpendicular recording down a notch

TDK orders deposition tool

The Essential Guide to IT Transformation

A manufacturer in the hard disk drive industry has ordered a Heat-Assisted Magnetic Recording (HAMR) deposition tool from Veeco - another sign of the end of perpendicular magnetic recording.

Perpendicular recording won't run out of steam for some years but disk drive manufacturers are already investigating alternatives to increase areal density beyond its recording limit of around 800-900Gbit/sq in. Two approaches have been identified to enable very small magnetised areas of a recording medium to preserve their polarity in the face of surrounding interference.

One is to surround them with a ring of insulating material - the patterned media approach. The other, HAMR, is to use a recording medium which needs localised heating to make a polarity change practicable.

Veeco supplies tools for the manufacture of thin film magnetic heads, and its products include "ion beam etch and deposition, physical vapor deposition, optical and atomic force metrology, lapping and slicing/dicing equipment". It has just announced its first order for a HAMR deposition tool.

TDK, a disk drive head supplier, demonstrated a HAMR head in October last year. There is no collective hard disk drive industry view about whether patterned media or HAMR is the right follow-on technology for perpendicular recording. Seagate has been associated with HAMR more than, for example, Western Digital, and Hitachi GST is thought to be examining both technologies.

Patterned media tool makers such as Molecular Imprints and Intevac have previously reported sales into the disk drive industry. ®

The Essential Guide to IT Transformation

More from The Register

next story
Sysadmin Day 2014: Quick, there's still time to get the beers in
He walked over the broken glass, killed the thugs... and er... reconnected the cables*
Auntie remains MYSTIFIED by that weekend BBC iPlayer and website outage
Still doing 'forensics' on the caching layer – Beeb digi wonk
Microsoft says 'weird things' can happen during Windows Server 2003 migrations
Fix coming for bug that makes Kerberos croak when you run two domain controllers
Cisco says network virtualisation won't pay off everywhere
Another sign of strain in the Borg/VMware relationship?
VVOL update: Are any vendors NOT leaping into bed with VMware?
It's not yet been released but everyone thinks it's the dog's danglies
prev story

Whitepapers

Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
Why and how to choose the right cloud vendor
The benefits of cloud-based storage in your processes. Eliminate onsite, disk-based backup and archiving in favor of cloud-based data protection.
The Essential Guide to IT Transformation
ServiceNow discusses three IT transformations that can help CIO's automate IT services to transform IT and the enterprise.
Maximize storage efficiency across the enterprise
The HP StoreOnce backup solution offers highly flexible, centrally managed, and highly efficient data protection for any enterprise.