Anyone with sense is looking at ways to cut down on energy expenditure, especially big industries, who see it in terms of overheads rather than simple necessity. Hence the chipmakers of the world are very interested in a new way of ‘cooking’ their products – rather than baking them in hot ovens, they could use ultraviolet light to etch the semiconductor wafers. The details aren’t finalised yet, but the researcher behind the idea reckons his method is much more efficient.