KLA provides process control and yield management equipment for the semiconductor manufacturing industry. The company develops systems that inspect and measure wafers, reticles, and packaged devices at various stages of the chip fabrication process. Chipmakers use KLA tools to detect defects, monitor dimensions, and analyze process data to improve production yields and reduce manufacturing waste. KLA operates primarily through its Semiconductor Process Control segment, which offers optical and electron-beam inspection tools, metrology systems, and reticle inspection hardware integrated with data analytics software. The company also maintains smaller business lines focused on specialty semiconductor applications and printed circuit board inspection. KLA sells its products to foundries, memory manufacturers, and integrated device manufacturers worldwide, with the majority of sales occurring in international markets. The business model centers on the sale of capital equipment, with demand driven by semiconductor manufacturing cycles and the transition to more complex chip architectures. As chip designs advance with EUV lithography and high-bandwidth memory, the technical difficulty of manufacturing increases, which drives demand for inspection and metrology. Beyond equipment sales, KLA generates recurring revenue through a service business that provides maintenance, support, and contract-based services for its global installed base of systems.