Effects of BCl3 addition on Ar/Cl2 gas in inductively coupled plasmas for lead zirconate titanate etching

Tae Hyun An, Joon Yong Park, Geun Young Yeom, Eui Goo Chang, Chang Il Kim

Research output: Contribution to journalConference articlepeer-review

19 Scopus citations

Abstract

Reactive ion etching (RIE) of lead zirconate titanate (PZT) thin film was investigated using an Ar(20)/Cl2/BCl3 gas mixture in an inductively coupled plasma (ICP). The PZT etch rate of 2450 angstroms/min was obtained at an inductive power of 500 W, dc-bias voltage of -300 V, total pressure of 20 mTorr, and substrate temperature of 80 °C. X ray photoelectron spectroscopy analysis for film composition was utilized. Results showed that PbO in PZT film was readily broken and transformed to Pb relative to ZrO2 and TiO2.

Original languageEnglish
Pages (from-to)1373-1376
Number of pages4
JournalJournal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
Volume18
Issue number4 I
DOIs
StatePublished - Jul 2000
Event46th National Symposium of the American Vacuum Society - Seatlle, WA, USA
Duration: 25 Oct 199929 Oct 1999

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