1 February 1994 Laser microprocessing of diamond and diamond-like films
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Proceedings Volume 2045, Laser-Assisted Fabrication of Thin Films and Microstructures; (1994); doi: 10.1117/12.167557
Event: Optics Quebec, 1993, Quebec City, Canada
Abstract
Applications of KrF excimer laser for processing of polycrystalline diamond films and hard amorphous (`diamond-like') carbon films grown by chemical vapor deposition are reported. A technique of selective-area deposition of diamond films on Si substrates is described. Smoothing of rough surface of as-grown films using a scanning laser beam, and high speed drilling of diamond films were realized. Laser etching of amorphous carbon in air is shown to occur by two mechanisms: (carbon oxidation, which provides etch rates of a few nm/pulse, and (2) physical ablation dominating at high fluences. Micron-sized patterns were produced in amorphous films using the `mild' laser-chemical etching regime without any damage of Si substrates. It is concluded that lasers are very efficient tools for patterning, polishing, and shaping of these two classes of the extremely hard and chemically inert materials.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Vitali I. Konov, Victor G. Ralchenko, Sergej M. Pimenov, Andrey A. Smolin, Taras V. Kononenko, "Laser microprocessing of diamond and diamond-like films", Proc. SPIE 2045, Laser-Assisted Fabrication of Thin Films and Microstructures, (1 February 1994); doi: 10.1117/12.167557; https://doi.org/10.1117/12.167557
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KEYWORDS
Diamond

Etching

Silicon

Carbon

Excimer lasers

Laser ablation

Oxidation

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