Cohu Inc (Cohu) is a technology company that supplies semiconductor test automation, automated test equipment (ATE), interface solutions, inspection metrology, and advanced data analytics software. The company offers equipment and services that optimize manufacturing yield and productivity for semiconductor manufacturers. It also offers services including installation, maintenance, training, and consulting. The company offers semiconductor handlers for automating the testing of packaged semiconductor devices, supporting various package sizes and device types. It markets its products under the brand names of Diamondx, PAx, T-Core, NV-Core, and DI-Core.

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Cohu’s R&D arm focuses on the development of new capabilities in high-precision inspection and metrology, thermal control, automation, signal integrity, and AI-driven analytics, and enhancements across its test, interface, inspection, and software product offerings. The company’s R&D team collaborates closely with customers and industry partners to design solutions that meet stringent quality standards and address increasing device complexity. In FY2025, the company incurred expenses of US$92.2 million on R&D activities, which as a percentage of revenue, stood at 20.4%.