AMKR vs ASX

Amkor Technology Inc.

Amkor Technology, Inc. provides outsourced semiconductor packaging and test services in the United States, Japan, Europe, the Middle East, Africa, and rest of the Asia Pacific. It offers turnkey packaging and test services, including semiconductor wafer bump, wafer probe, wafer back-grind, package design, packaging, and test and drop shipment services. The company also provides flip chip scale package products for use in smartphones, tablets, and other mobile consumer electronic devices; flip chip stacked chip scale packages that are used to stack memory, and as applications processors in mobile devices; and flip chip ball grid array products for various networking, storage, computing, and consumer applications. In addition, it offers wafer-level CSP packages that are used in power management, transceivers, sensors, wireless charging, codecs, and specialty silicon; wafer-level fan-out packages for use in ICs; and silicon wafer integrated fan-out technology, which replaces a laminate substrate with a thinner structure. Further, the company provides lead frame packages that are used in electronic devices for low to medium pin count applications; substrate-based wirebond packages, which are used to connect a die to a substrate; micro-electro-mechanical systems (MEMS) packages that are miniaturized mechanical and electro-mechanical devices; and advanced system-in-package modules, which are 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. It primarily serves integrated device manufacturers, fabless semiconductor companies, original equipment manufacturers, and contract foundries. Amkor Technology, Inc. was founded in 1968 and is headquartered in Tempe, Arizona.

ASE Technology Holding Co. Ltd.

ASE Technology Holding Co., Ltd. provides a range of semiconductors packaging and testing, and electronic manufacturing services in the United States, Taiwan, rest of Asia, Europe, and internationally. The company offers packaging services, including flip chip ball grid array (BGA), flip chip chip scale package (CSP), advanced chip scale packages, quad flat packages, low profile and thin quad flat packages, bump chip carrier and quad flat no-lead (QFN) packages, advanced QFN packages, plastic BGAs, and 3D chip packages; stacked die solutions in various package types; and copper and silver wire bonding solutions. It also provides advanced packages, such as flip chip BGA; heat-spreader FCBGA; flip-chip CSP; hybrid FCCSP; flip chip package in package and package on package (POP); advanced single sided substrate; high-bandwidth POP; fan-out wafer-level packaging; SESUB; and 2.5D silicon interposer. In addition, the company offers IC wire bonding packages; system-in-package products (SiP) and modules; and interconnect materials, as well as assembles automotive electronic products. Further, it provides a range of semiconductor testing services, including front-end engineering testing, wafer probing, logic/mixed-signal/RF module and SiP/MEMS/discrete final testing, and other test-related services, as well as drop shipment services. Additionally, the company develops, constructs, sells, leases, and manages real estate properties; produces substrates; offers information software, equipment leasing, financing, investment advisory, and warehousing management services; processes and sells computer and communication peripherals, electronic components, telecommunications equipment, and motherboards; and imports and exports goods and technology. ASE Technology Holding Co., Ltd. was incorporated in 1984 and is headquartered in Kaohsiung, Taiwan.