A Simulation Study of NBTI Impact on 14-nm Node FinFET Technology for Logic Applications: Device Degradation to Circuit-Level Interaction

Subrat Mishra, Hussam Amrouch, Jerin Joe, Chetan K. Dabhi, Karansingh Thakor, Yogesh S. Chauhan, Jorg Henkel, Souvik Mahapatra

Research output: Contribution to journalArticlepeer-review

52 Scopus citations

Abstract

A comprehensive simulation flow is demonstrated to assess the negative-bias temperature instability (NBTI) impact on the performance and power of digital logic circuits based on the 14-nm node FinFET technology. Fully calibrated technology computer-aided design simulations are used to determine the preaged and postaged device characteristics; the results are used for calibrating the BSIM-CMG compact model. Standard cell libraries are characterized next, by only threshold voltage shift ( Δ VT) and by both Δ VT and subthreshold slope shift ( Δ SS). Various benchmark circuits are synthesized and analyzed, and their timing degradation is compared to ring oscillator results. The consequence of ignoring Δ SS on OFF current and static power ( Pstatic ) is estimated.

Original languageEnglish
Article number8510876
Pages (from-to)271-278
Number of pages8
JournalIEEE Transactions on Electron Devices
Volume66
Issue number1
DOIs
StatePublished - Jan 2019
Externally publishedYes

Keywords

  • BSIM-CMG
  • FinFET
  • SPICE
  • circuit simulation
  • compact model
  • mixed-mode simulation
  • negative-bias temperature instability (NBTI)
  • ring oscillator (RO)
  • standard cells
  • static power
  • subthreshold slope degradation

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