Q.S.I Co., Ltd.

QSI have Excellent product design capabilities and advanced production systems that can handle EPI, FAB and PKG with extensive experience.Specialized manufacturer of compound semiconductors. Manufacturing technology for Laser diode, VCSEL, RF Device, and Micro LED. Laser diodes : Manufacturing finished products VCSEL, RF Device, Micro LED : Foundry service and device manufacturing services.Company Location History Investor Relations Stock Price Information Financial Statements Disclosure Information ESG Certification Conflict Minerals Environment & Working Environment Hazardous Substance ManagementMMIC Foundry Service with ultra-high frequency and ultra-low noise characteristics, based on active elements such as HEMT and HBT, MMIC.ESG Certification Conflict Minerals Environment & Working Environment Hazardous Substance ManagementProduct LD Red laser diode Infra Red laser diode Infra Red VCSEL Foundry Service Epi Fab(Wafer) PKGHigh efficiency micro LED epi foundry and device ...