High dose implantation strip (hdis) in h2 base chemistry

Plasma is generated using elemental hydrogen, a weak oxidizing agent, and a fluorine containing gas. An inert gas is introduced to the plasma downstream of the plasma source and upstream of a showerhead that directs gas mixture into the reaction chamber where the mixture reacts with the high-dose im...

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Bibliographische Detailangaben
Hauptverfasser: GOTO, HARUHIRO HARRY, CHEUNG, DAVID
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:Plasma is generated using elemental hydrogen, a weak oxidizing agent, and a fluorine containing gas. An inert gas is introduced to the plasma downstream of the plasma source and upstream of a showerhead that directs gas mixture into the reaction chamber where the mixture reacts with the high-dose implant resist. The process removes both the crust and bulk resist layers at a high strip rate, and leaves the work piece surface substantially residue free with low silicon loss.