Electronic specialty gases used in wafer fabricationone The manufacturing process of silicon wafer is as follows:1. Purification: the silicon ore plus carbon plus oxygen produces 98% metallurgical grade silicon2. Chlorination: silicon plus hydrogen chloride gas to produce trichlorosilomethane or silicon tetrachloride3. Reduction: high purity polysilicon crystal was produced by adding trichloromethane and hydrogen4. Dissolve whirl: polysilicon becomes monocrystalline silicon crystal rod5. Cutting, polishing and cleaning: monocrystalline silicon rod becomes monocrystalline silicon wafertwo Oxida···

Shandong Yanhe Chemical Co., Ltd., is a manufacturing and trading combo. The main products are industrial hydrogen chloride (purity: 99%), chemical hydrogen chloride (purity: 99.8-99.9%), electronic hydrogen chloride (purity: 99.998-99.999%), high purity chlorine (purity: 99.999-99.9995%).Zibo Wandali Special Gas Factory is directly affiliated to the hydrogen chloride production base of Yanhe Chemical.

Shandong Yanhe Chemical Co., Ltd., is a manufacturing and trading combo. The main products are industrial hydrogen chloride (purity: 99%), chemical hydrogen chloride (purity: 99.8-99.9%), electronic hydrogen chloride (purity: 99.998-99.999%), high purity chlorine (purity: 99.999-99.9995%).Zibo Wandali Special Gas Factory is directly affiliated to the hydrogen chloride production base of Yanhe Chemical.

Shandong Yanhe Chemical Co., Ltd., is a manufacturing and trading combo. The main products are industrial hydrogen chloride (purity: 99%), chemical hydrogen chloride (purity: 99.8-99.9%), electronic hydrogen chloride (purity: 99.998-99.999%), high purity chlorine (purity: 99.999-99.9995%).