Alpha and Omega Semiconductor Limited
Alpha and Omega Semiconductor Limited designs, develops, and supplies power semiconductor products for computing, consumer electronics, communication, and industrial applications in Hong Kong, China, South Korea, the United States, and internationally. The company offers power discrete products, including metal-oxide-semiconductor field-effect transistors (MOSFET), Shielded-Gate low voltage and mid-voltage MOSFETs, SuperJunction high voltage MOSFETs, and trench-stop insulated gate bipolar transistors (IGBTs), as well as application specific MOSFETs for use in smartphone chargers, battery packs, notebooks, desktop and servers, data centers, base stations, graphics card, game boxes, TVs, AC adapters, power supplies, motor control, power tools, e-vehicles, white goods and industrial motor drives, UPS systems, solar inverters, and industrial welding. It also provides power ICs that deliver power, as well as control and regulate the power management variables, such as the flow of current and level of voltage. The company's power ICs are used in flat panel displays, TVs, notebooks, graphic cards, servers, AI datacenters, DVD/Blu-Ray players, set-top boxes, and networking equipment. In addition, the company offers transient voltage protection products, analog switches, and electromagnetic interference filters for notebooks, desktop PCs, tablets, flat panel displays, TVs, smartphones, and portable electronic devices. Further, it provides silicon carbide, IPM, TVS, and HV gate drivers; and power modules, multiphase controllers, EZBuck regulators, and diode protection switches. Alpha and Omega Semiconductor Limited was incorporated in 2000 and is headquartered in Sunnyvale, California.
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Diodes Incorporated, together with its subsidiaries, manufactures and supplies application-specific standard products in the broad discrete, logic, analog, and mixed-signal semiconductor markets in Asia, Europe, and the Americas. 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 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, re-drivers, 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; 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 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.
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