Automated design of misaligned-carbon-nanotube-immune circuits

  • Authors:
  • Nishant Patil;Jie Deng;H.-S. P. Wong;Subhasish Mitra

  • Affiliations:
  • Stanford University;Stanford University;Stanford University;Stanford University

  • Venue:
  • Proceedings of the 44th annual Design Automation Conference
  • Year:
  • 2007

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Abstract

Carbon Nanotube Field-Effect Transistors (CNFETs) are promising candidates as extensions to Silicon CMOS due to excellent CV/I device performance. An ideal CNFET inverter fabricated using a perfect CNFET technology can have 5.1 times faster F04 delay and 2.6 times lower energy per cycle compared to a 32nm Silicon CMOS inverter. Two fundamental challenges prevent us from creating CNFET-based logic designs with the advantages quoted above: 1. Misaligned Carbon Nanotubes (CNTs), and 2. Metallic CNTs. Misaligned CNTs can result in incorrect logic function implementations. This paper presents a technique for designing CNFET-based arbitrary logic functions that are guaranteed to be correct even in the presence of a large number of misaligned CNTs.