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Cohu, Inc., through its subsidiaries, provides semiconductor test equipment and services in China, the United States, Taiwan, Malaysia, the Philippines, and internationally. The company supplies semiconductor test and inspection handlers, micro-electromechanical system (MEMS) test modules, test contactors, thermal sub-systems, and semiconductor automated test equipment for semiconductor manufacturers and test subcontractors. It also provides semiconductor automated test equipment for wafer level and device package testing; various test handlers, including pick-and-place, turret, gravity, strip, and MEMS and thermal sub-systems; interface products comprising test contactors, and probe heads and pins; spares and kits; various parts and labor warranties on test and handling systems, and instruments; and training on the maintenance and operation of its systems, as well as application, data management software, and consulting services on its products. In addition, the company offers data analytics product that includes DI-Core, a software suite used to optimize Cohu equipment performance, which provides real-time online performance monitoring and process control. It markets its products through direct sales force and independent sales representatives. The company was formerly known as Cohu Electronics, Inc. and changed its name to Cohu, Inc. in 1972. The company was incorporated in 1947 and is headquartered in Poway, California.

PDF Solutions, Inc. provides proprietary software and physical intellectual property products for integrated circuit designs, electrical measurement hardware tools, proven methodologies, and professional services in the United States, China, Japan, and internationally. The company offers Exensio software products, such as Manufacturing Analytics that store collected data in a common environment with a consistent view for enabling product engineers to identify and analyze production yield, performance, reliability, and other issues; Process Control that provides failure detection and classification capabilities for monitoring, alarming, and controlling manufacturing tool sets; Test Operations that offer data collection and analysis capabilities; and Assembly Operations that provide device manufacturers with the capability to link assembly and packaging data, including fabrication and characterization data over the product life cycle. It also provides Design-For-Inspection (DFI) systems, such as DFI On-Chip Instruments; eProbe Non-Contact E-Beam Tool; and Characterization Vehicle (CV) system, which includes CV Test Chips and pdFasTest Electrical Testers, as well as Exensio characterization software, designed to analyze the measurements collected using the eProbe tool. In addition, the company offers Cimetrix software products that enables equipment manufacturers to provide industry standard interfaces on their products; and software-as-a-service, software related services, and characterization services. It sells its technologies and services through direct sales force, service teams, and strategic alliances to integrated device manufacturers, fabless semiconductor companies, foundries, equipment manufacturers, electronics manufacturing suppliers, original device manufacturers, out-sourced semiconductor assembly and test, and system houses. PDF Solutions, Inc. was founded in 1991 and is headquartered in Santa Clara, California.

Photronics, Inc., together with its subsidiaries, engages in the manufacture and sale of photomask products and services in the United States, Taiwan, China, Korea, Europe, and internationally. It offers photomasks that are used in the manufacture of integrated circuits and flat panel displays (FPDs); and to transfer circuit patterns onto semiconductor wafers, and FDP substrates. The company offers electrical and optical components. It sells its products to semiconductor and FPD manufacturers, designers, and foundries, as well as to other high-performance electronics manufacturers through its sales personnel and customer service representatives. The company was formerly known as Photronic Labs, Inc. and changed its name to Photronics, Inc. in 1990. Photronics, Inc. was incorporated in 1969 and is based in Brookfield, Connecticut.

Veeco Instruments Inc., together with its subsidiaries, develops, manufactures, sells, and supports semiconductor and thin film process equipment primarily to make electronic devices in the United States, Europe, the Middle East, and Africa, China, Rest of the Asia-Pacific, and internationally. The company offers laser annealing, ion beam deposition and etch, metal organic chemical vapor deposition, single wafer wet processing and surface preparation, molecular beam epitaxy, advanced packaging lithography, atomic layer deposition, and other deposition systems. Its process equipment systems are used in the production of a range of microelectronic components, including logic, dynamic random-access memory, photonics devices, power electronics, radio frequency filters and amplifiers, magnetic heads for hard disk drives, and other semiconductor devices. In addition, the company markets and sells its products to integrated device manufacturers and foundries; outsourced semiconductor assembly and test companies; and hard disk drive and photonics manufacturers, as well as research centers and universities. Veeco Instruments Inc. was founded in 1945 and is headquartered in Plainview, New York.