Ultra Clean Holdings, Inc. develops and supplies critical subsystems, components and parts, and ultra-high purity cleaning and analytical services for the semiconductor industry in the United States and internationally.

Onto Innovation Inc. engages in the design, development, manufacture, and support of process control tools that performs macro defect inspection and 2D/3D optical metrology, lithography systems, and process control analytical software worldwide.

Cohu, Inc., through its subsidiaries, provides semiconductor test equipment and services in China, the United States, Taiwan, Malaysia, the Philippines, and internationally.

Lam Research Corporation designs, manufactures, markets, refurbishes, and services semiconductor processing equipment used in the fabrication of integrated circuits. The company offers ALTUS systems to deposit conformal films for tungsten metallization applications; SABRE electrochemical deposition products for copper interconnect transition that offers copper damascene manufacturing; SOLA ultraviolet thermal processing products for film treatments; and VECTOR plasma-enhanced CVD ALD products.

Applied Materials, Inc. provides manufacturing equipment, services, and software to the semiconductor, display, and related industries. It operates through three segments: Semiconductor Systems, Applied Global Services, and Display and Adjacent Markets.

ASML Holding N.V. develops, produces, markets, sells, and services advanced semiconductor equipment systems for chipmakers. It offers advanced semiconductor equipment systems, including lithography, metrology, and inspection systems.

Axcelis Technologies, Inc. designs, manufactures, and services ion implantation and other processing equipment used in the fabrication of semiconductor chips in the United States, Europe, and Asia.

Entegris, Inc. develops, manufactures, and supplies microcontamination control products, specialty chemicals, and advanced materials handling solutions in North America, Taiwan, China, South Korea, Japan, Europe, and Southeast Asia.

Ichor Holdings, Ltd. engages in the design, engineering, and manufacture of fluid delivery subsystems and components for semiconductor capital equipment. It primarily offers gas and chemical delivery systems and subsystems that are used in the manufacturing of semiconductor devices.

Amtech Systems, Inc. manufactures and sells capital equipment and related consumables for use in fabricating silicon carbide (SiC), silicon power devices, analog and discrete devices, electronic assemblies, and light-emitting diodes (LEDs) worldwide.

Veeco Instruments Inc., together with its subsidiaries, develops, manufactures, sells, and supports semiconductor and thin film process equipment primarily to make electronic devices worldwide.

KLA Corporation designs, manufactures, and markets process control, process-enabling, and yield management solutions for the semiconductor and related electronics industries worldwide.