pMOSFET with CVD-grown 2D semiconductor channel enabled by ultra-thin and fab-compatible spacer doping

Terry Y.T. Hung, Meng Zhan Li, Wei Sheng Yun, Sui An Chou, Sheng Kai Su, Edward Chen, San Lin Liew, Ying Mei Yang, Kuang I. Lin, Vincent Hou, T. Y. Lee, Han Wang, Albert Cheng, Minn Tsong Lin, H. S.Philip Wong, Iuliana P. Radu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Citations (Scopus)

Abstract

We present the first demonstration of p-MOSFET with a high ON current of 10{-5} mathrm{A}/ mathrm{u} mathrm{m} and good S.S. sim 80 mathrm{m} mathrm{V}/ mathrm{d} mathrm{e} mathrm{c}. MOSFETs have the advantage of lower access resistance compared to Schottky barrier FETs. This requires spacer doping. Here, we introduce a self-limiting, fab-compatible process which consists of mathrm{W} mathrm{O}-{ mathrm{x}} obtained from mathrm{W} mathrm{S} mathrm{e}-{2} by O2 plasma conversion. We analyze the process condition which enhance the doping effect. We quantify the doping level and the impact of the channel bandgap. We demonstrate a self-aligned version of the spacer doping for MOSFET fabrication.

Original languageEnglish
Title of host publication2022 International Electron Devices Meeting, IEDM 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages731-734
Number of pages4
ISBN (Electronic)9781665489591
DOIs
Publication statusPublished - 2022
Event2022 International Electron Devices Meeting, IEDM 2022 - San Francisco, United States
Duration: 2022 Dec 32022 Dec 7

Publication series

NameTechnical Digest - International Electron Devices Meeting, IEDM
Volume2022-December
ISSN (Print)0163-1918

Conference

Conference2022 International Electron Devices Meeting, IEDM 2022
Country/TerritoryUnited States
CitySan Francisco
Period22-12-0322-12-07

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'pMOSFET with CVD-grown 2D semiconductor channel enabled by ultra-thin and fab-compatible spacer doping'. Together they form a unique fingerprint.

Cite this