Performance Evaluation of Strain Effectiveness of Sub-5 nm GAA FETs with Compact Modeling based on Neural Networks

  • Ji Hwan Lee
  • , Kihwan Kim
  • , Kyungjin Rim
  • , Soogine Chong
  • , Hyunbo Cho
  • , Saeroonter Oh

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

In this paper, strain effectiveness in 3-stacked gate-all-around (GAA) FETs has been investigated using process and device simulations for sub-5 nm technology node. We induce strain into the Si channels in GAA FETs by modifying the source and drain epitaxy to investigate the effectiveness of strain in GAA FETs. We chose SiGe as source and drain for pMOS, and SiC for nMOS. To verify I-V characteristics of GAA FETs, the drift-diffusion transport model was calibrated with Monte Carlo simulations. Furthermore, a compact model based on neural networks has been developed to evaluate the performance of a 5-stage ring oscillator with strained and unstrained GAA FETs using SPICE simulation. Our simulation results indicate that circuits with 1 % strained GAA FETs shows 92.22 ps ring oscillator propagation delay time compared to 130.67

Original languageEnglish
Title of host publication7th IEEE Electron Devices Technology and Manufacturing Conference
Subtitle of host publicationStrengthen the Global Semiconductor Research Collaboration After the Covid-19 Pandemic, EDTM 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350332520
DOIs
StatePublished - 2023
Externally publishedYes
Event7th IEEE Electron Devices Technology and Manufacturing Conference, EDTM 2023 - Seoul, Korea, Republic of
Duration: 7 Mar 202310 Mar 2023

Publication series

Name7th IEEE Electron Devices Technology and Manufacturing Conference: Strengthen the Global Semiconductor Research Collaboration After the Covid-19 Pandemic, EDTM 2023

Conference

Conference7th IEEE Electron Devices Technology and Manufacturing Conference, EDTM 2023
Country/TerritoryKorea, Republic of
CitySeoul
Period7/03/2310/03/23

Keywords

  • Compact model
  • GAA FETs
  • Strain

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