mm-Wave CMOS Device Optimization Design for Super-400 GHz fMAX with Impact of Technology Scaling and Layout Dependent Effects

Jyh Chyurn Guo*, Adhi Cahyo Wijaya, Jinq Min Lin

*Corresponding author for this work

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

Abstract

The impact of nano CMOS devices scaling and layout dependent effects (LDE) on high frequency performance has been investigated to identify the fT and fMAX optimization principles, aimed at super-400 GHz fMAX. A comprehensive comparison of high frequency parameters of nMOSFETs with gate length (Lg) scaling from 56-nm to 33-nm indicates fT boost up to 128% but only 1650% gain of fMAX. The major challenge comes from the dramatic increase of equivalent gate resistance Rg @ Y(ω) and output conductance gd(ω) over high frequencies due to a dramatic device scaling, which hinders the enhancement of f MAX to much smaller rate than that of fT. An aggressive fMAX boost aimed at super-400 GHz demands an effective reduction of the Rg @ Y and gds, through not only layouts optimization but also the innovations of device structures and materials.

Original languageEnglish
Title of host publication2023 Asia-Pacific Microwave Conference, APMC 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages246-249
Number of pages4
ISBN (Electronic)9781665494182
DOIs
StatePublished - 2023
Event31st Asia-Pacific Microwave Conference, APMC 2023 - Taipei, Taiwan
Duration: 5 Dec 20238 Dec 2023

Publication series

NameAsia-Pacific Microwave Conference Proceedings, APMC
ISSN (Electronic)2690-3946

Conference

Conference31st Asia-Pacific Microwave Conference, APMC 2023
Country/TerritoryTaiwan
CityTaipei
Period5/12/238/12/23

Keywords

  • fMAX
  • fT
  • gate resistance
  • layout
  • nano CMOS device
  • optimization
  • output conductance
  • scaling

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