A model for reactive ion etching of PZT thin films

作者: G. Suchaneck , R. Tews , G. Gerlach

DOI: 10.1016/S0257-8972(99)00101-2

关键词: Etching (microfabrication)Reactive-ion etchingElectrodeMaterials scienceElectron densityGas compositionPlasma modelingThin filmElectronMolecular physicsAnalytical chemistry

摘要: Abstract In this work, a simplified model for the discharge kinetics and surface chemistry of r.f. discharges containing CF 4 , CHF 3 Ar gas mixtures suitable lead zirconate–titanate (PZT) etch rate simulation is presented. The electron density fraction power dissipation in bulk, sheaths due to oscillating sheath boundaries were calculated by an given etching parameters. A Maxwellian energy distribution was assumed. For parallel plate reactor with plug flow electrode surface, ion flux determining PZT calculated. dissipated bombardment about 80%. weak dependence on composition obtained.

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