Lou, I've seen the same dialectic again and again between supposed silicon limits about to be reached at X.X process generation and the architectural fixes for same. But one of the main reasons silicon hasn't been replaced yet isn't technical: it's economic, And I don't mean the fact that the material is relatively cheap. The situation is analogous to other potential replacements, like electric and/or hybrid cars, or solar energy, or bioplastics and biofuels: the existing infrastructure is huge, entrenched, pervasive and profitable. Replacing it will take a lot of conscious, united effort, even if the replacing technology works just as well.
Graphene is the future. Forcing a band gap in the material was the crucial step.
However, now that it is poised to be used mainstream, how toxic is the manufacturing process of graphene? I read an article here at DN on nano-tube creation, and its bad. Graphene can't be far behind it.
Cabe, thanks for covering this news from Georgia Tech. Graphene, in various forms including CNTs, has been considered as one possible replacement for silicon for several years. This is a totally cool step forward.
The issue of shrinking transistor size and of stretchability are really two different things.
Over the last many years people have been looking for the replacement for silicon. It is interesting that this has not happened yet. Chip makers continually improve silicon manufactur and density. Other materials generally prove to be of a much lower yield or density or both. Gallium Arsenide was one of those. It could operate at higher speeds, but yield and density were poor.
The solution to reaching limits on clock speed has been architectural. Thus we have multicore machines.
It always seems to be a race between silicon getting better and something else. As you point out in the article, the first theoretical conjecture was in 1947. These things can take a long time before they go from theory to industrial use.
By experimenting with the photovoltaic reaction in solar cells, researchers at MIT have made a breakthrough in energy efficiency that significantly pushes the boundaries of current commercial cells on the market.
We looked at a number of sources to determine this year's greenest cars, from KBB to automotive trade magazines to environmental organizations. These 14 cars emerged as being great at either stretching fuel or reducing carbon footprint.
A quick look into the merger of two powerhouse 3D printing OEMs and the new leader in rapid prototyping solutions, Stratasys. The industrial revolution is now led by 3D printing and engineers are given the opportunity to fully maximize their design capabilities, reduce their time-to-market and functionally test prototypes cheaper, faster and easier. Bruce Bradshaw, Director of Marketing in North America, will explore the large product offering and variety of materials that will help CAD designers articulate their product design with actual, physical prototypes. This broadcast will dive deep into technical information including application specific stories from real world customers and their experiences with 3D printing. 3D Printing is