Featured Research

from universities, journals, and other organizations

Secret to making cheap, high-density data storage discovered

Date:
October 10, 2012
Source:
The Agency for Science, Technology and Research (A*STAR)
Summary:
Imagine being able to store thousands of songs and high-resolution images on data devices no bigger than a fingernail. Researchers have discovered that an ultra-smooth surface is the key factor for “self-assembly.”

Imagine being able to store thousands of songs and high-resolution images on data devices no bigger than a fingernail. Researchers from A*STAR's Institute of Materials Research and Engineering (IMRE) and the National University of Singapore (NUS) have discovered that an ultra-smooth surface is the key factor for "self-assembly"

Self-assembly is a a cheap, high-volume, high-density patterning technique. It allows manufacturers to use the method on a variety of different surfaces. This discovery paves the way for the development of next generation data storage devices, with capacities of up to 10 Terabits/in2 which could lead to significantly greater storage on much smaller data devices.

The "self-assembly" technique is one of the simplest and cheapest high-volume methods for creating uniform, densely-packed nanostructures that could potentially help store data. Self-assembly is one of the leading candidates for large scale nanofabrication at very high pattern densities. One of its most obvious applications will be in the field of bit patterned media, or the hard disk industry . It is widely used in research and is gaining acceptance in industry as a practical lithographic tool for sub-100 nm, low-cost, large area patterning. However, attempts to employ self-assembly on different surface types, such as magnetic media used for data storage, have shown varying and erratic results to date. This phenomenon has continued to puzzle industry researchers and scientists globally.

Researchers from A*STAR's IMRE and NUS have now solved this mystery and identified that the smoother the surface, the more efficient the self-assembly of nanostructures will be. This breakthrough allows the method to be used on more surfaces and reduce the number of defects in an industrial setting. The more densely packed the structures are in a given area, the higher the amount of data that can be stored.

"A height close to 10 atoms, or 10 angstroms in technical terms, is all it takes to make or break self-assembly," explained Dr MSM Saifullah, one of the key researchers from A*STAR's IMRE who made the discovery. This is based on a root mean squared surface roughness of 5 angstrom. The team discovered that this was the limit of surface roughness allowed for the successful self-assembly of dots, which could eventually be used in making high-density data storage. "If we want large scale, large area nanopatterning using very affordable self-assembly, the surface needs to be extremely smooth so that we can achieve efficient, successful self-assembly and with lower incidents of defects."

The discovery was recently published in Scientific Reports, an open access journal from Nature. This research is supported by the National Research Foundation Singapore under its "Frontier in magnetic recording research: Vision for 10 terabits per square inch" programme (NRF-CRP 002-097 NRF-08) and administered by A*STAR's IMRE.


Story Source:

The above story is based on materials provided by The Agency for Science, Technology and Research (A*STAR). Note: Materials may be edited for content and length.


Journal Reference:

  1. Shreya Kundu, Ramakrishnan Ganesan, Nikita Gaur, Mohammad S. M. Saifullah, Hazrat Hussain, Hyunsoo Yang, Charanjit S. Bhatia. Effect of angstrom-scale surface roughness on the self-assembly of polystyrene-polydimethylsiloxane block copolymer. Scientific Reports, 2012; 2 DOI: 10.1038/srep00617

Cite This Page:

The Agency for Science, Technology and Research (A*STAR). "Secret to making cheap, high-density data storage discovered." ScienceDaily. ScienceDaily, 10 October 2012. <www.sciencedaily.com/releases/2012/10/121010083826.htm>.
The Agency for Science, Technology and Research (A*STAR). (2012, October 10). Secret to making cheap, high-density data storage discovered. ScienceDaily. Retrieved October 22, 2014 from www.sciencedaily.com/releases/2012/10/121010083826.htm
The Agency for Science, Technology and Research (A*STAR). "Secret to making cheap, high-density data storage discovered." ScienceDaily. www.sciencedaily.com/releases/2012/10/121010083826.htm (accessed October 22, 2014).

Share This



More Computers & Math News

Wednesday, October 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Chameleon Camouflage to Give Tanks Cloaking Capabilities

Chameleon Camouflage to Give Tanks Cloaking Capabilities

Reuters - Innovations Video Online (Oct. 22, 2014) — Inspired by the way a chameleon changes its colour to disguise itself; scientists in Poland want to replace traditional camouflage paint with thousands of electrochromic plates that will continuously change colour to blend with its surroundings. The first PL-01 concept tank prototype will be tested within a few years, with scientists predicting that a similar technology could even be woven into the fabric of a soldiers' clothing making them virtually invisible to the naked eye. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Internet of Things Aims to Smarten Your Life

Internet of Things Aims to Smarten Your Life

AP (Oct. 22, 2014) — As more and more Bluetooth-enabled devices are reaching consumers, developers are busy connecting them together as part of the Internet of Things. (Oct. 22) Video provided by AP
Powered by NewsLook.com
Free Math App Is A Teacher's Worst Nightmare

Free Math App Is A Teacher's Worst Nightmare

Newsy (Oct. 22, 2014) — New photo-recognition software from MicroBlink, called PhotoMath, solves linear equations and simple math problems with step-by-step results. Video provided by Newsy
Powered by NewsLook.com
Rate Hike Worries Down on Inflation Data

Rate Hike Worries Down on Inflation Data

Reuters - Business Video Online (Oct. 22, 2014) — Inflation remains well under control according to the latest consumer price index, giving the Federal Reserve more room to keep interest rates low for awhile. Bobbi Rebell reports. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins