The BBC reports that IBM researchers have found a way to get more out of the current microchip manufacturing method. Researchers have been able to etch circuits on silicon chips that are a third of the width of those made using existing technology. This discovery could lead to smaller chips with higher capacity in addition to avoiding a switch to potentially costlier and unproven chip-making methods. The new method could extend “Moore’s Law,” a guiding principle in the tech sector for the past 40 years…