Tiny Chips Might Provide Massive Memory
Wednesday, October 21st, 2009Your 32GB iPhone 3GS is pretty cool, but how does a 1TB iPhone grab you? Well, it might not be as far-fetched as you think.

Researchers at North Carolina State University are working on a material that will significantly increase the capacity of memory chips, and have a prototype that can potentially hold fifty times more storage than current technology allows.
The new material relies on a process called selective doping, where an impurity is added to a material to change its properties. In this case, nickel is added to magnesium oxide to form tiny clusters of nickel no more than 10 square nanometres in size. This technique could allow for a storage density of 10 trillion bits per square inch, assuming that a 7 nanometre magnetic nanodot can store one bit of information.
The team at NC State has been working on the project for the last five years, and has recently overcome the problem it was having with aligning the nanodots using pulsed lasers. “We need to be able to control the orientation of each nanodot,” said Professor Jagdish Narayan, a professor of materials science and engineering at NCSU, “because any information that you store in it has to be read quickly and exactly the same way.”
According to Professor Narayan the process would not be much more expensive than current methods, and that it could go into production in only a few years: “We haven’t scaled up our prototype but we don’t think it should cost a lot more to do this commercially,” he said. “The key is to find someone to start on the large-scale manufacturing process.”
Source: Wired



