A researcher from
Speaking at Semicon West, Wong described a theoretical 3D chip stack interleaving next-generation memory and logic technologies made with carbon nanotubes. Privately, he noted that the material still has a several issues before it is ready for practical use.
He showed a "club sandwich" produced from carbon nanotubes. It interleaved layers of resistive and magnetic RAM with logic layers produced from 1D and 2D field effect transistors.
He said : "This design requires new, high-efficiency heat spreaders, the thermal aspect is critically important."
The resulting design could deliver a thousand-fold power reduction for the
Wong said : "All the content was loaded into Watson's DRAM, not hard drives, because so much energy is spent in moving data." Although a handheld Watson is not expected to come to the retail store anytime soon, the researcher did summarise recent development with carbon nanotubes.
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