Thermal etching definition

The above definitions are somewhat different from those given in earlier publications. In earlier studies, thermal etching has been defined to be etching that takes place in nonreactive or mildly reactive gases or under vacuum. Catalytic etching has been defined to be any etching process that takes place in... 

Finally, during certain processes such as film growth or thermal etching, new, essentially low index planes may be formed on part of the surface. They are referred to as facets and make definite angles with flat portions of the surface. If they are large enough, their diffraction pattern is that of an independent, inclined face. The problem is more complex when they are small, but they can then be effectively treated as steps or domains. 

Catalytic etching, 41 359, 383-384 definition, 41 360-361 in low earth orbit, 41 414—415 models, 41 359, 360-362 plasma etching, 41 407-414 thermally generated free radicals, 41 406-407... 

Photo/thermal Degradation. Although transmission or ATR IR spectra gave no Indication of a photo- or thermally-induced alteration In the POP microstructure, the uv-lrradlated or heated films showed a definite darkening or blackening. As may be seen from Table II, the rates for photolnduced blackening In etched and... 

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