Jianghan New Materials said 6N-grade silicon tetrachloride (SiCl4) is primarily for optical-fiber preform production; the company has held in-depth talks with prospective customers but has not signed sales contracts and expects sales to begin after production starts. It said 9N-grade TEOS targets semiconductor wafer manufacturing—used in CVD to deposit SiO2 dielectric layers for device isolation/interlayer insulation—whose primary customers are wafer fabs; validation is relatively complex, the c

Jianghan New Materials said 6N-grade silicon tetrachloride (SiCl4) is primarily for optical-fiber preform production; the company has held in-depth talks with prospective customers but has not signed sales contracts and expects sales to begin after production starts. It said 9N-grade TEOS targets semiconductor wafer manufacturing—used in CVD to deposit SiO2 dielectric layers for device isolation/interlayer insulation—whose primary customers are wafer fabs; validation is relatively complex, the company is actively engaging prospective customers and has purchased CVD equipment to assist validation and shorten the approval cycle.