A big leap toward tinier lines
For the last few decades, microchip manufacturers have been on a quest to find ways to make the patterns of wires and components in their microchips ever smaller, in order to fit more of them onto a single chip and thus continue the relentless progress toward faster and more powerful computers. That progress has become more difficult recently, as manufacturing processes bump up against fundamental limits involving, for example, the wavelengths of the light used to create the patterns. Now, a team of researchers at MIT and in Chicago has found an approach that could break through some of those limits and make it possible to produce some of the narrowest wires yet, using a process that could easily be scaled up for mass manufacturing with standard kinds of equipment. The new findings are reported this week in the journal Nature Nanotechnology, in a paper by postdoc Do Han Kim, graduate student...