Nanowire nanocomputer as a finite-state machine
Klemic, James F.
Ellenbogen, James C.
MetadataShow full item record
CitationYao, J., H. Yan, S. Das, J. F. Klemic, J. C. Ellenbogen, and C. M. Lieber. 2014. “Nanowire nanocomputer as a finite-state machine.” Proceedings of the National Academy of Sciences (January 27). doi:10.1073/pnas.1323818111. http://dx.doi.org/10.1073/pnas.1323818111.
AbstractImplementation of complex computer circuits assembled from the bottom up and integrated on the nanometer scale has long been a goal of electronics research. It requires a design and fabrication strategy that can address individual nanometer-scale electronic devices, while enabling large-scale assembly of those devices into highly-organized, integrated computational circuits. We describe how such a strategy has led to the design, construction, and demonstration of a nanoelectronic finite-state machine (nanoFSM). The system was fabricated using a design- oriented approach enabled by a deterministic, bottom-up assembly process that does not require individual nanowire registration. This methodology allowed construction of the nanoFSM through modular design employing a multi-tile architecture. Each tile/module consists of two interconnected crossbar nanowire arrays, with each cross-point consisting of a programmable nanowire transistor node. The nanoFSM integrates 180 programmable nanowire transistor nodes in three tiles or six total crossbar arrays, and incorporates both sequential and arithmetic logic, with extensive inter-tile and intra-tile communication that exhibits rigorous input/output (I/O) matching. Our system realizes the complete 2-bit logic flow and clocked control over state registration that are required for a FSM or computer. The programmable multi-tile circuit was also re-programmed to a functionally-distinct 2-bit full adder with 32-set matched and complete logic output. These steps forward and the ability of our new design-oriented deterministic methodology to yield more extensive multi-tile systems, suggest that proposed general-purpose nanocomputers can be realized in the near future.
Citable link to this pagehttp://nrs.harvard.edu/urn-3:HUL.InstRepos:11859323
- FAS Scholarly Articles 
Contact administrator regarding this item (to report mistakes or request changes)