Amkor Technology
NASDAQ:AMKRAmkor Technology, Inc. provides outsourced semiconductor packaging and test services in the United States, Japan, Europe, the Middle East, Africa, and the Asia Pacific. It offers turnkey packaging and test services, including semiconductor wafer bump, wafer probe, wafer back-grind, package design, packaging, system-level and final test, and drop shipment services; flip chip scale package products for smartphones, tablets, and other mobile consumer electronic devices; flip chip stacked chip scale packages that are used to stack memory digital baseband, and as applications processors in mobile devices; flip-chip ball grid array packages for various networking, storage, computing, automotive, and consumer applications; and memory products for system memory or platform data storage. The company also provides wafer-level CSP packages for power management, transceivers, sensors, wireless charging, codecs, radar, and specialty silicon; wafer-level fan-out packages used in power management, transceivers, radar, and specialty silicon; silicon wafer integrated fan-out technology that replaces a laminate substrate with a thinner structure; leadframe packages for electronic devices and mixed-signal applications; and substrate-based wirebond packages used to connect a die to a substrate. In addition, it offers micro-electro-mechanical systems packages that are miniaturized mechanical and electromechanical devices; and advanced system-in-package modules used in radio frequency and front end modules, basebands, connectivity, fingerprint sensors, display and touch screen drivers, sensors and MEMS, and NAND memory and solid-state drives. Further, the company provides wafer, package, and system level test services, as well as burn-in test and test development services. It serves integrated device manufacturers, fabless semiconductor companies, original equipment manufacturers, and contract foundries. The company was founded in 1968 and is headquartered in Tempe, Arizona.
Onsemi
NASDAQ:ONonsemi is engaged in disruptive innovations and also a supplier of power and analog semiconductors. The firm offers vehicle electrification and safety, sustainable energy grids, industrial automation, and 5G and cloud infrastructure, with a focus on automotive and industrial end-markets. It operates through the following segments: Power Solutions Group, Advanced Solutions Group, and Intelligent Sensing Group. The Power Solutions Group segment offers discrete, module, and semiconductor products that perform multiple application functions, including power switching, power conversion, signal conditioning, circuit protection, signal amplification, and voltage reference functions. The Advanced Solutions Group segment is involved in the designing and developing of analog, mixed-signal, advanced logic, ASSPs and ASICs, Wi-Fi and power solutions for a broad base of end-users in the automotive, consumer, computing, industrial, communications, medical and aerospace/defense markets. The Intelligent Sensing Group segment is focused on the designing and developing of CMOS and CCD image sensors, as well as proximity sensors, image signal processors, single photon detectors, inclu
United Microelectronics
NYSE:UMCUnited Microelectronics Corporation operates as a semiconductor wafer foundry in Taiwan, Singapore, China, Hong Kong, Japan, the United States, Europe, and internationally. The company provides circuit design, mask tooling, wafer fabrication, and assembly and testing services. It serves fabless design companies and integrated device manufacturers. The company was incorporated in 1980 and is headquartered in Hsinchu City, Taiwan.