Patent ID: 8222162

Claim:
A batch processing method for forming a structure including an amorphous carbon film by use of a hydrocarbon gas, the method comprising: placing a plurality of target objects at intervals in a vertical direction on an inside of a reaction chamber, each of the target objects including an underlying layer on which the structure is to be formed; then performing a preliminary treatment on a surface of the underlying layer by ammonia gas serving as a preliminary treatment gas, the preliminary treatment supplying the preliminary treatment gas into the reaction chamber without supplying the hydrocarbon gas into the reaction chamber while exhausting gas from inside the reaction chamber and setting the inside of the reaction chamber at a preliminary treatment temperature of 800 to 950° C. and a pressure of 133 to 53,200 Pa to activate the preliminary treatment gas only by heating at the preliminary treatment temperature; and then performing main CVD (chemical vapor deposition) of forming an amorphous carbon film on the underlying layer, the main CVD supplying the hydrocarbon gas into the reaction chamber without supplying the preliminary treatment gas into the reaction chamber while exhausting gas from inside the reaction chamber and setting the inside of the reaction chamber at a main process temperature to activate the hydrocarbon gas only by heating at the main process temperature.