Atomic layer deposition of SiO2 for the performance enhancement of fin field effect transistors

Kazuhiko Endo, Yuki Ishikawa, Takashi Matsukawa, Yongxun Liu, Shin Ichi O'Uchi, Kunihiro Sakamoto, Junichi Tsukada, Hiromi Yamauchi, Meishoku Masahara

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6 Citations (Scopus)

Abstract

Atomic layer deposition (ALD) of SiO2 by using a tetraethoxysilane (TEOS) or a bis(ethylmethylamino)silane (BEMAS) have been studied for the side-wall spacer formation of the fin field effect transistor (FinFET). The ALD-SiO2 can be deposited conformally at 50 °C for the TEOS and at 250 °C for the BEMAS precursor. As a result, FinFETs with a 25-nm-long extension of the source/drain using the ALD grown SiO2 sidewall spacer have been successfully fabricated. The performance of the FinFET has been successfully improved by reduction of the parasitic resistance.

Original languageEnglish
Article number116503
JournalJapanese journal of applied physics
Volume52
Issue number11 PART 1
DOIs
Publication statusPublished - 2013 Nov 1
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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