According to the method of generating corrosive gas, it can be divided into reactive gas phase etching and thermal steaming meteorological etching. The reaction device is shown in Figure 8.
According to the mode of producing corrosive gas, it can be divided into reaction gas phase etching and thermal steaming meteorological etching, the reaction device is shown in Figure 8.
According to the way of producing corrosive gas, it can be divided into reactive vapor etching and thermal vapor etching. The reaction device is shown in Fig. 8