SFA Semicon Co., Ltd. is a South Korean semiconductor company. It offers packaging products including fan-out wafer-level packages, chip-on-chip and chip-on-wafer products, flip chip products, laminates, lead frames, micro secure digital cards, secure digital cards, and solid state drives, as well as bumping products. It also provides turn-key processes, wafer and final test services, full back-end solutions such as laser marking, visual mechanical inspection, bake, tape and reel, and dry packing for tested ICs, plus finished goods storage and drop-shipment services, test engineering services, and IT services for customized test data. Formerly known as STS Semiconductor & Telecommunications Co., Ltd., it changed its name to SFA Semicon Co., Ltd. in April 2016, was founded in 1998, and is headquartered in Cheonan-si, South Korea.