Surface Processes in Laser-Induced Etching of Silicon Studied by X-Ray Photoelectron Spectroscopy
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SURFACE PROCESSES IN LASER-INDUCED ETCHING OF SILICON STUDIED BY X-RAY PHOTOELECTRON SPECTROSCOPY
MASATAKA HIROSE AND TSUYOSHI OGURA Research Center for Integrated
Systems,
Hiroshima
University
Higashihiroshima 724, Japan
ABSTRACT A silicon surface exposed to NF3 gas was irradiated with an
ArF
excimer laser beam. The reaction products on the surface and their chemical bonding features
were studied by
in-situ x-ray photoelectron spectroscopy
at each step of the photochemical etching. It was found that SiFX (i
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