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Ultrahigh-Purity Diaphragm Valves, ALD3 and ALD6 Series

Swagelok® Ultrahigh-Purity Diaphragm Valves for Atomic Layer Processing (ALD3 and ALD6 Series)

Swagelok ALD3 and ALD6 series diaphragm valves are used in semiconductor manufacturing tools to achieve the controlled dosing necessary for atomic layer deposition (ALD) processing. They offer ultrahigh cycle life, high-speed actuation, and flow coefficients up to 0.62.

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Ultrahigh-purity Swagelok® ALD3 and Swagelok® ALD6 diaphragm valves are designed to provide semiconductor manufacturers with dependable, high-speed dosing of precursor gases used to build up microchips layer by layer in deposition chambers. These high-performance ultrahigh-purity valves feature an ultrahigh cycle life, full immersibility at elevated temperatures, and suitability for ultrahigh-purity applications.

The diaphragms used in ALD3 and ALD6 valves are composed of a cobalt-based superalloy material that provides strength and corrosion resistance. Their valve bodies are 316L VIM-VAR stainless steel, making them suitable for ultrahigh-purity applications. The valve seats are made of fluorinated high-purity PFA to enable a broad range of chemical compatibility and resistance to swelling and contamination. These valves can be set up for normally closed and normally open pneumatic actuation, and they are available in a variety of configurations to suit different installation requirements.

See How ALD Valves Improve Semiconductor Manufacturing

ALD3 and ALD6 Valve Specifications

Working PressureVacuum to 145 psig (10.0 bar)
Burst Pressure>3200 psig (220 bar)
Actuation Pressure50 to 90 psig (3.5 to 6.2 bar)
Temperature32° to 392°F (0° to 200°C)
Flow Coefficient (Cv)0.27 or 0.62
Body Materials316L VIM-VAR stainless steel
Diaphragm MaterialCobalt-based superalloy
End ConnectionsType (Size): Female VCR® face seal fitting (1/4 in. to 1/2 in.), male VCR face seal fitting (1/4 in. to 1/2 in.), modular surface mount high-flow C-seal (1.125 in. to 1.5 in.)

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ALD3 and ALD6 Series Valves Catalogs

Locate detailed product information, including materials of construction, pressure and temperature ratings, options, and accessories.

Swagelok fluid system components are available in materials designed to last in semiconductor manufacturing environments.

Improve Semiconductor Yield with Optimized Alloys

Discover how semiconductor fabricators can improve end-to-end production yields and improve long-term profitability by selecting the right metals for critical fluid system components.

Learn About Material Selection

Swagelok Resources Curated for You

Cleanroom assembly of a Swagelok ALD20 UHP valve for semiconductor industry use
One New Valve: Three Reasons It Could Change Semiconductor Manufacturing

Find out how the latest innovation in atomic layer deposition (ALD) valve technology is changing the game for high-tech semiconductor manufacturers.

Carl White, who has spent nearly 40 years working at various points in the semiconductor industry supply chain, offers a firsthand perspective on the past, present, and future of semiconductor industry advancement.
Q&A: Semiconductor Manufacturing Past, Present, and Future

Find out how collaboration between semiconductor tool OEMs, microchip manufacturers, and fluid system solutions providers has enabled the semiconductor market to keep up with the demands of Moore’s Law for decades, and where we go from here.

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