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Amkor 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.

AU Optronics Corp. researches, develops, produces, and sells thin film transistor liquid crystal displays and other flat panel displays. The company operates through two segments, Display and Solar. The Display segment designs, develops, manufactures, assembles, and markets flat panel displays for use in televisions (TVs), TV sets, and other related products; desktop monitors; mobile PCs, such as notebooks and tablets; mobile phones; and commercial and other applications, including displays for automobiles, industrial PCs, automated teller machines, point of sale terminals, pachinko machines, medical equipment, and others. This segment serves original equipment manufacturing service providers; and brand companies. The Solar segment manufactures and sells solar materials, including ingots, solar wafers, and solar modules, as well as provides technical engineering and maintenance services for solar system projects. This segment sells its ingot and solar wafer products primarily to solar cell manufacturers; and solar modules to installers, solar system integrators, property developers, and other value-added resellers. The company also engages in the renewable energy power generation; repairing and sale support of TFT-LCD modules, as well as sale support of solar-related products; injecting and stamping parts; manufacture and sale of molds, light guide plates, liquid crystal products, backlight modules, and related parts, as well as precision plastic and metal parts; IP related business; design, development and sales of software and hardware for health care industry; manufacture, assembly, and sale of automotive parts; manufacture and sale of motorized treadmills; and planning, design, and development of construction for environmental protection and related project management. It operates in the People's Republic of China, Taiwan, Japan, Singapore, and internationally. AU Optronics Corp. was founded in 1996 and is headquartered in Hsinchu, Taiwan.

AUO Corporation researches, develops, produces, and sells thin film transistor liquid crystal displays (TFT-LCDs) and other flat panel displays for various applications. It operates through two segments, Display and Energy. The company designs, manufactures, and sells ingots, solar wafers, and solar modules, as well as provides technical engineering and maintenance services for solar system projects. It also sells and leases content management system and related hardware; designs digital signage content and field curation solutions; plans, designs, and develops construction project for environmental protection and related project management; and designs, manufactures, and sells TFT-LCD modules, TV sets and related parts, backlight modules, automotive parts, and precision plastic parts. In addition, the company engages in the development, manufacturing, and sale of medical equipment; services related to site rental and educational activities; research and development, and IP related business; solar power generation; and sale and sales support of TFTLCD panels. Further, it designs, develops, and sells software and hardware for health care industry; provides software and hardware integration system and equipment relating to intelligent manufacturing, as well as software development and related consulting services; and investment services. It operates in the People's Republic of China, Taiwan, the United States, Japan, Singapore, and internationally. The company was formerly known as AU Optronics Corp. and changed its name to AUO Corporation in June 2022. AUO Corporation was founded in 1996 and is headquartered in Hsinchu City, Taiwan.

Diodes Incorporated, together with its subsidiaries, manufactures and supplies application-specific standard products in the broad discrete, logic, analog, and mixed-signal semiconductor markets worldwide. The company offers discrete semiconductor products, such as MOSFETs, SiC MOSFETs; data line protection, power line protection, thyristers, USB Type-C protection, and transient voltage suppressors; Schottky, small signal switching, Zener, and SiC diodes; bridges, super barrier, Schottky, Schottky bridge, and fast/ultra-fast rectifiers; and bipolar, avalanche, gate driver, and pre-bias transistors. It also provides analog products, including power management devices comprising AC-DC and DC-DC converters, USB power switches, low dropout, photocoupler and linear voltage regulators; standard linear devices consisting of operational amplifiers and comparators, current monitors, voltage references, and reset generators; LED lighting drivers; audio amplifiers; and sensor products, such as hall-effect sensors and motor drivers. In addition, the company offers mixed-signal products, such as high speed mux/demux, digital switches, interface, redrivers, universal level shifters/voltage translators, clock ICs and packet switches; standard logic products comprising low-voltage complementary metal-oxide-semiconductor (CMOS) and advanced high-speed CMOS devices; ultra-low power CMOS logic; and analog switches; multichip products and co-packaged discrete, analog and mixed-signal silicon in miniature packages; and silicon and silicon epitaxial wafers used in manufacturing frequency control products and contact images sensors. It serves the industrial, automotive, computing, communications, and consumer markets through direct sales, marketing personnel, independent sales representatives, and distributors. The company was incorporated in 1959 and is headquartered in Plano, Texas.

Viavi Solutions Inc. provides network test, monitoring, and assurance solutions for communications service providers, hyperscalers, network equipment manufacturers, original equipment manufacturers, government, and avionics customers in the Americas, the Asia-Pacific, Europe, the Middle East, and Africa. The company operates through three segments: Network Enablement (NE), Service Enablement (SE), and Optical Security and Performance Products (OSP). The NE segment offers testing solutions that access the network to perform build-out and maintenance tasks. Its solutions include instruments, software, and services to design, build, activate, certify, troubleshoot, and optimize networks; and test and measurement instrumentation for communication and safety. It also offers support and professional services, such as repair, calibration, software support, and technical assistance for the products; and system integration projects, including project management, installation, and implementation, as well as product and technology training, and consulting services. The SE segment provides embedded systems and enterprise performance management solutions for communication service providers, enterprises, and cloud operators with visibility into network, service, and application data. Its solutions include instruments, microprobes, and software, which monitor, collect, and analyze network data to reveal the actual customer experience and to identify opportunities for new revenue streams and network optimization. The OSP segment offers optical products for anti-counterfeiting, consumer and industrial, government, automotive, and industrial markets. The company was formerly known as JDS Uniphase Corporation. Viavi Solutions Inc. was founded in 1923 and is headquartered in Chandler, Arizona.