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Ultraviolet light enhancement of Ta2O5 dry etch rates

  • K. P. Lee
  • , H. Cho
  • , R. K. Singh
  • , S. J. Pearton
  • , C. Hobbs
  • , P. Tobin

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

The dry etch rates in Ta2O5 were enhanced by using ultraviolet (UV) light irradiation during inductively coupled plasma (ICP) etching. The material was etched both in SF6/Ar and Cl2/Ar plasma chemistries. The increased in etch rates are assumed to be due to the photoassisted desorption of the TaClx and TaFx etch products.

Original languageEnglish
Pages (from-to)293-295
Number of pages3
JournalJournal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures
Volume18
Issue number1
DOIs
StatePublished - Jan 2000
Externally publishedYes

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