As EE Times highlights, the global high-end dichlorosilane market has been dominated by Japanese companies such as Shin-Etsu Chemical and Sumitomo Chemical. While China is the world’s largest semiconductor market, its domestic production of high-end electronic chemicals once accounted for only 15–20%, forcing many Chinese chipmakers to rely heavily on imports, the report suggests.
However, the report notes that in recent years, domestic companies such as Tangshan Sanfu Co., Ltd. and Yoke Technology have made technological breakthroughs, producing 6N-grade (99.9999% purity) or higher dichlorosilane, and have successfully passed verification by major Chinese chip manufacturers.