Self-aligned indium-gallium-zinc oxide thin-film transistor with source/drain regions doped by implanted arsenic

Rongsheng Chen*, Wei Zhou, Meng Zhang, Man Wong, Hoi Sing Kwok

*Corresponding author for this work

Research output: Contribution to journalJournal Articlepeer-review

46 Citations (Scopus)

Abstract

Self-aligned top-gate amorphous indium-gallium-zinc oxide (a-IGZO) thin-film transistors (TFTs) with source/drain (S/D) regions doped by implanted arsenic are developed in this letter. The resulting a-IGZO TFTs exhibit much better thermal stability than those with S/D regions doped by hydrogen or argon plasma. They also show good electrical performance, including field-effect mobility of 12 cm2Vs, threshold voltage of 3.5 V, subthreshold swing of 0.5 V/dec, and on/off current ratio of 9 × 10 7.

Original languageEnglish
Article number6361261
Pages (from-to)60-62
Number of pages3
JournalIEEE Electron Device Letters
Volume34
Issue number1
DOIs
Publication statusPublished - 2013

Keywords

  • Amorphous indium-gallium-zinc oxide (a-IGZO)
  • arsenic
  • self-aligned
  • thin-film transistors (TFTs)

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