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 language | English |
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Article number | 8510876 |
Pages (from-to) | 271-278 |
Number of pages | 8 |
Journal | IEEE Transactions on Electron Devices |
Volume | 66 |
Issue number | 1 |
DOIs | |
State | Published - Jan 2019 |
Externally published | Yes |
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