Applied Ceramics, Inc., (ACI) is a privately held company with headquarters in Fremont, California. As a fabricator of custom-made ceramics, quartz, silicon and sapphire spare parts, ACI products are designed for the semiconductor industry. ACI's ISO 9001:2000 Certification further complements its high reputation of being a top quality spare parts supplier and producer of high precision and purity items made from many materials, including: Ceramics, Quartz, Sapphire, Silicon, and much more!