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Plasma-Parameter-Extraction for Minimizing Contamination and Damage in RIE Processes

Takeo YAMASHITA, Satoshi HASAKA, Iwao NATORI, Tadahiro OHMI

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Summary :

The two most important parameters in reactive ion etching process, ion bombardment energy and flux, were extracted through a simple RF waveform measurement at the excitation electrode in a conventional cathode-coupled plasma RIE system. By using the extracted plasma parameters, damage and contamination in Si substrates induced by reactive ion etching in a SiCl4 plasma were investigated. A very convenient map representation of ion energy and ion flux was introduced in understanding the etching process occurring in the RIE system.

Publication
IEICE TRANSACTIONS on Electronics Vol.E75-C No.7 pp.839-843
Publication Date
1992/07/25
Publicized
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DOI
Type of Manuscript
Special Section PAPER (Special Issue on Ultra Clean Technology)
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