Salt could theoretically increase drive capacities to more than 20TB Researchers in Singapore say they’ve found a way to use common table salt to increase by 5.3 times the density at which bits of data can be stored on a hard disk drive platter. The researchers said that the process they discovered will support densities ranging from 1.9 terabits per inch to 3.3Tbit/in., or six times what a Seagate 4TB hard drive is capable of today, which is 625Gbit/in. Given that today’s hard drives can come with as much as 4TB of capacity, theoretically, the new technology would make it possible for more than 21TB of data to reside on a single drive.The secret lies in the use of an extremely high-resolution e-beam lithography, which is the process by which fine nano-scale circuitry is created. By adding sodium chloride (salt) to a developer solution used in lithography processes, the researchers were able to produce highly defined nanostructures that were as small as 4.5 nanometers, without the need for expensive equipment upgrades. A nanometer is one-billionth of a meter. Today’s NAND flash-based solid-state drives use lithography processes that create circuitry about 25nm in width; a human hair is 3,000 times thicker than 25nm.The researchers’ “salty developer solution” method was invented by Joel Yang, a scientist at the Institute of Materials Research and Engineering (IMRE) at Singapore’s Agency for Science, Technology and Research. Yang first developed the method when he was a graduate student at MIT. Yang and researchers from the National University of Singapore and the Data Storage Institute, perfected the nanopatterning technique. In the simplest of terms, nanopatterning more closely packs miniature structures that hold information in the form of bits. “What we have shown is that bits can be patterned more densely together by reducing the number of processing steps,” Yang said in a statement. Scientists use the term “grain” to describe the packages of bits deposited on the surface of a platter.Current technology uses tiny grains, about 7nm or 8mn in size, deposited on the surface of storage media, Yang said. However, a single bit of data is stored in a cluster of these “grains” and not in any single “grain.” The researchers’ bits are about 10nm in size but store information in a single structure. The researchers are now working to increase the storage density even further.Lucas Mearian covers storage, disaster recovery and business continuity, financial services infrastructure and health care IT for Computerworld. Follow Lucas on Twitter at @lucasmearian, or subscribe to Lucas’s RSS feed . His email address is lmearian@computerworld.com. Related content feature Windows 11 Insider Previews: What’s in the latest build? Get the latest info on new preview builds of Windows 11 as they roll out to Windows Insiders. Now updated for 22635.3500 for the Beta Channel and Build 26200 for the Canary Channel, both released on April 19, 2024. By Preston Gralla Apr 19, 2024 250 mins Small and Medium Business Microsoft Windows 11 news analysis Chasing business and partnerships, Apple goes APAC Apple CEO Tim Cook’s week-long visit to Indonesia, Vietnam, and Singapore highlights how the company continues to explore new opportunities in global markets. By Jonny Evans Apr 19, 2024 4 mins Manufacturing Industry Apple Vendors and Providers news Microsoft reminder: Support for Office 2016 and 2019 ends next year Older versions of Office apps and servers will no longer get security updates as of October 2025 — when Windows 10 also reaches end of support. By Matthew Finnegan Apr 19, 2024 3 mins Microsoft Office Microsoft Office Suites news Google consolidates AI teams into DeepMind to scale capacity The restructuring will simplify development by concentrating compute-intensive model building in one place and establishing single access points for PAs looking to take these models and build generative AI applications, Google said. By Gyana Swain Apr 19, 2024 4 mins Google Podcasts Videos Resources Events SUBSCRIBE TO OUR NEWSLETTER From our editors straight to your inbox Get started by entering your email address below. Please enter a valid email address Subscribe