Fluid and gas components (fittings and tubing)

IGS® integrated gas system

Fujikin's gas supply system that integrates valves and eliminates piping and fittings. It incorporates the FCS pressure-based flow controller.

Maker: Fujikin · Official product page

Specifications


TypesIntegrated gas supply system
Key featureAbout 1/3 the size of conventional systems, maintenance from one direction
Related modelsFCS (pressure-based flow control)
Main applicationsUltra-high-purity gas supply for semiconductor equipment

Specifications as published by the maker. See the sources below.

Overview


IGS (Integrated Gas System) is Fujikin's technology for integrating gas supply lines. Individual components such as valves, filters and pressure regulators are arranged on base blocks and connected with W-seals to form the gas box of semiconductor equipment.

The W-seal fitting carries over the UPG sealing method, sealing each point with 2 bolts. It can carry the FCS pressure-based flow controller, and because flow does not change with fluctuations in supply pressure, it supplies gas stably even in multi-chamber environments. A leveling system absorbs manufacturing variation in sheet metal and lower blocks.

It is about 1/3 the size of conventional systems, and because components can be removed from above, replacement time is cut to about 1/5. The leak rate is 1/1,000 trillion cc per second or less. It is used in thin film CVD, etching tools, multi-chamber systems and gas distribution boxes, and received an excellence award at the 1st Monodzukuri Nippon Grand Award in 2005.

Key features


Applications


Other fluid and gas components (fittings and tubing)


More from Fujikin


Sources


  1. Fujikin: IGS product page

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Last updated: October 23, 2026