Improvement of Deposition Rate by Sandblasting of Tungsten Wire in Catalytic Chemical Vapor Deposition

摘要

The effects of sandblasting of tungsten wires were investigated to increase the deposition rate in catalytic chemical vapor deposition (Cat-CVD). The tungsten wires were sandblasted using silicon carbide powder. Both the surface area and surface roughness increased by this treatment. The deposition rate increased with the surface roughness when the input electric power was kept constant.