Because the quartz material the chemical property is stable, the purity is high, the melting point is high, degree of hardness high, hot coefficient of expansion small and so on fine characteristic, under the normal temperature, the majority acids, the metal, the chlorine and the bromine and the quartz had not responded, if the alkaline solution the temperature and the density increase slightly have the response. When the temperature surpasses 150 ℃ phosphoric acid to be able to corrode the quartz. Alone hydrofluoric acid (HF) may momentarily corrode the quartz. 300 ℃ above basic oxides, the carbonate, the sulfate and so on will have the response. In brief, the quartz is the very stable material. Therefore widely uses in making components of the semiconductor system regulation to consume the material, this company accepts any conception manufacture.