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Applied Optoelectronics, Inc. designs, manufactures, and sells fiber-optic networking products in the United States, Taiwan, and China. It offers optical modules, optical filters, lasers, laser components, subassemblies, transmitters and transceivers, turn-key equipment, headend, node, distribution equipment, and amplifiers. The company sells its products to internet data center operators, cable television, telecom equipment manufacturers, fiber-to-the-home, and internet service providers through its direct and indirect sales channels. Applied Optoelectronics, Inc. was incorporated in 1997 and is headquartered in Sugar Land, Texas.

AXT, Inc. designs, develops, manufactures, and distributes compound and single element semiconductor substrates. The company offers indium phosphide for use in data center connectivity using light/lasers, high-speed data transfer in data centers, 5G communications, fiber optic lasers and detectors, consumer devices, passive optical networks, silicon photonics, photonic integrated circuits, thermo-photovoltaics, RF amplifier and switching, infrared light-emitting diode (LEDS) motion control, lidar for robotics and autonomous vehicles, and infrared thermal imaging. It also provides semi-insulating gallium arsenide (GaAs) substrates for use in Wi-Fi and IoT devices, transistors, direct broadcast television, power amplifiers, satellite communications, and solar cells; and semi-conducting GaAs substrates that are used in LEDs, screen displays using micro-LEDs, printer head lasers and LEDs, 3-D sensing using VCSELs, data center communication using VCSELs, sensors for industrial robotics/near-infrared sensors, optical couplers, solar cells, night vision goggles, lidar for robotics and autonomous vehicles, and other lasers, as well as laser machining, cutting, and drilling. In addition, the company offers germanium substrates for use in multi-junction solar cells for satellites, optical sensors and detectors, terrestrial concentrated photo voltaic cells, infrared detectors, and carrier wafer for LED. Further, it provides 6N+ and 7N+ purified gallium, boron trioxide, gallium-magnesium alloy, pyrolytic boron nitride (pBN) crucibles, and pBN insulating parts. It sells its products through direct salesforce in the United States, China, and Europe, as well as through independent sales representatives and distributors in Japan, Taiwan, Korea, and internationally. The company was formerly known as American Xtal Technology, Inc. and changed its name to AXT, Inc. in July 2000. AXT, Inc. was incorporated in 1986 and is headquartered in Fremont, California.

GSI Technology, Inc. designs, develops, and markets semiconductor memory solutions to networking, industrial, medical, aerospace, and military customers in the United States, China, Singapore, Germany, the Netherlands, and internationally. It offers associative processing unit products, which are focuses on applications using similarity search in visual search queries for ecommerce, computer vision, drug discovery, cyber security, and service markets. The company also provides static random access memory (SRAM) products, such as SyncBurst for microprocessor cache and other applications; No Bus Turnaround SRAMs to address the needs of networking and telecom applications; SigmaQuad and SigmaDDR products for density and random transaction rate requirements of networking and telecom applications; Low Latency DRAMs, a solution for advanced data networking applications; Asynchronous, a main memory for small cache-less embedded processors for industrial electronics, measurement systems and cost-sensitive networking equipment, and other applications; and specialty SRAMs. In addition, it offers radiation-hardened and radiation-tolerant SRAMs for military/defense and aerospace applications, such as networking satellites and missiles. The company's products are used as components in its original equipment manufacturer customers' products, including routers, switches, and other networking and telecommunications products; military and aerospace applications, such as radar and guidance systems and satellites; test and measurement applications consisting of high-speed testers; automotive applications comprising smart cruise control; medical applications, including ultrasound and CAT scan equipment; and audio/video processing. It markets its products through a network of independent sales representatives and distributors. GSI Technology, Inc. was incorporated in 1995 and is headquartered in Sunnyvale, California.

Adesto Technologies Corporation, together with its subsidiaries, provides application-specific semiconductors and embedded systems that offer the building blocks of Internet of Things (IoT) edge devices operating on networks worldwide. The company's portfolio of semiconductor and embedded technologies are optimized for connected IoT devices and systems used in industrial, consumer, communications, and medical applications. Its offerings enable customers to differentiate their IoT systems and product designs. The company's technology is used in various connected products, such as smart utility meters, wearable fitness trackers and medical monitors, home automation, building control systems, fleet management systems, and satellite communications applications. Its products portfolio includes IoT edge servers, routers, network nodes, and communication modules, as well as analog, digital, and non-volatile memory technologies, application-specific integrated circuits distributed network systems, and IP cores. The company also provides software, software development kits, tools, and system solutions to help speed time to market for customers. Its solutions enable seamless access to data, allowing for intelligent control of things in today's connected world. Adesto Technologies Corporation was incorporated in 2006 and is headquartered in Santa Clara, California.

SiTime Corporation designs, develops, and sells silicon timing systems solutions in Taiwan, Hong Kong, the United States, Singapore, and internationally. The company provides resonators and clock integrated circuits, and various types of oscillators. It serves various markets, including communications, datacenter, enterprise, automotive, industrial, internet of things, mobile, consumer, and aerospace and defense. The company sells its products directly to customers, distributors, and resellers. SiTime Corporation was incorporated in 2003 and is based in Santa Clara, California.