Indeed
http://www.ted.com/index.php/talks/view/id/18 :)
IBM's highly boffinated research division delivered today when the firm said it would be first to deploy self-assembly microchip nanotechnology on an industrial scale. The self-assembling material can be coaxed by a scaffold to form vacuum cavities, which improve electrical transmission by reducing transmission between …
"lithographic manufacturing techniques, where copper wiring has to be masked with insulating material before lasers etch away."
Umm... I think you need to brush up on your semiconductor manufacturing techniques. Etching is done with plasma or wet chemical processes - not lasers. Copper isn't etched anyway. The normal method is called the (dual) damascene process.
Much as I hate referencing wikipedia - this is a descent introduction:
http://en.wikipedia.org/wiki/Copper-based_chips#Patterning