Formosa Microsemi Co., Ltd., abbreviated as FMS, is a specialized semiconductor manufacturer headquartered in New Taipei City, Taiwan. Since its establishment, the company has focused on the discrete semiconductor sector, building a solid reputation in diodes, transistors, and protection components. Its core business spans design, wafer processing, packaging, and testing of high-performance discrete devices. The product portfolio includes Schottky diodes, Zener diodes, switching diodes, rectifiers, transient voltage suppressors (TVS), ESD protection arrays, MOSFETs, and bipolar junction transistors. These components serve consumer electronics, industrial automation, automotive systems, and telecommunications infrastructure. Formosa Microsemi is recognized for its cost-effective, small-signal and power management discretes, often replacing older through-hole types with compact surface-mount packages. The company maintains a strong presence in the Asia-Pacific supply chain, supplying major OEM and ODM partners. With a focus on continuous innovation and stringent quality control, FMS delivers reliable, ISO-certified solutions to the global electronics market. Its technical expertise in circuit protection and low-leakage designs has earned it a trusted position among niche semiconductor providers.