The SHIELD UPPER GROUNDED 2nd Source is a high-quality shield used in semiconductor applications. It is made from premium-grade materials, which insures resistance to wear and tear. This shield provides optimal protection against electromagnetic interference. It is workable for wafer chip making. The upper shield is used in the application where protection from external environmental factors is critical. This shield is rigorously tested and proven to meet the highest standards of quality and performance. It is long-lasting and reliable.