Bridging Dimensions: Demultiplexing Ultrahigh-Density Nanowire Circuits
Robert Beckman,
Ezekiel Johnston-Halperin,
Yi Luo,
Jonathan E. Green,
James R. Heath*
A demultiplexer is an electronic circuit designed to separate two or more combined signals. We report on a demultiplexer architecture for bridging from the submicrometer dimensions of lithographic patterning to the nanometer-scale dimensions that can be achieved through nanofabrication methods for the selective addressing of ultrahigh-density nanowire circuits. Order log2(N) large wires are required to address N nanowires, and the demultiplexer architecture is tolerant of low-precision manufacturing. This concept is experimentally demonstrated on submicrometer wires and on an array of 150 silicon nanowires patterned at nanowire widths of 13 nanometers and a pitch of 34 nanometers.
Division of Chemistry and Chemical Engineering, California Institute of Technology, MC 127-72, 1200 East California Boulevard, Pasadena, CA 91125, USA.
* To whom correspondence should be addressed. E-mail: heath{at}caltech.edu
