Patent ID: 6953531

Claim:
A method of etching a silicon-oxide-containing material, comprising: providing a plasma reaction chamber having an interior liner formed along a sidewall of the reaction chamber, the liner consisting essentially of one or more of Ru, Fe, Co, Rh, Pd, Os, Ir, W, Pt, and Ti; positioning a substrate laterally of the interior liner within the reaction chamber, the substrate having a silicon-oxide-containing material thereover; and plasma etching the silicon-oxide-containing material within the reaction chamber utilizing a fluorine-comprising plasma, the plasma etching comprising dispersing mono-atomic fluorine and recombining at least a portion of the mono-atomic fluorine, wherein a rate of recombination of the mono-atomic fluorine is greater in the presence of the liner than a rate of recombination of the mono-atomic fluorine in the absence of the liner.