As chip geometries get infinitesimally small, IBM is looking to DNA to make the manufacture of future chips feasible, CNET reports. IBM researchers and collaborator Paul W.K. Rothemund, of the California Institute of Technology, announced their advancement Aug. 17. Moore’s Law, named after Intel co-founder Gordon Moore, states that the number of transistors that can be placed on an integrated circuit doubles roughly every two years. For more than four decades, chip manufacturers have been able to consistently shrink chip geometries, allowing Moore’s Law to remain on track. But this might not be sustainable for chips with geometries under 22 nanometers. By 2014, the high cost of semiconductor manufacturing equipment will threaten Moore’s Law, "altering the fundamental economics of the industry," according to a report released in June by iSuppli. To solve this dilemma, IBM uses DNA molecules as scaffolding–where millions of carbon nanotubes could be deposited and self-assembled into precise patterns by sticking to the DNA molecules. This approach might provide a way to reach sub-22-nanometer lithography more economically, IBM and Caltech scientists say…

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