Ad
related to: semiconductor air separation
Search results
Results From The WOW.Com Content Network
High purity oxygen, nitrogen, and argon, used for semiconductor device fabrication, require cryogenic distillation. Similarly, the only viable source of the rare gases neon, krypton, xenon is the distillation of air using at least two distillation columns. Helium is also recovered in advanced air separation processes. [1]
The technique fabricates air gaps on a large scale by exploiting the self-assembly properties of certain polymers.These polymers can be easily integrated into the process modules (a collection of related steps that fabricate a structure on an integrated circuit) used in conventional CMOS fabrication, avoiding the costs of heavily modifying the process technology (the collection of process ...
A cryogenic gas plant is an industrial facility that creates molecular oxygen, molecular nitrogen, argon, krypton, helium, and xenon at relatively high purity. [1] As air is made up of nitrogen, the most common gas in the atmosphere, at 78%, with oxygen at 19%, and argon at 1%, with trace gasses making up the rest, cryogenic gas plants separate air inside a distillation column at cryogenic ...
Reticular materials are particularly well-suited for gas separation and storage, owing to their highly porous structures and the ability to selectively adsorb specific gases. [20] This application is critical in industries such as energy, where efficient hydrogen storage is essential for clean fuel technologies. [ 21 ]
In March 2007, the BOC Edwards semiconductor equipment business was sold to private equity firm CCMP Capital for €685m. [26] [27] [28] Also in March 2007, eight air separation units and related bulk gas business, with about 300 employees, were sold to Airgas for $495 million in cash. [29]
The experimental separation factor of CO 2 to N 2 was found to be 1.1-1.2 at 100 °C to 500 °C, which is higher than the separation factor limit of 0.8 predicted by Knudsen diffusion. Though the separation factor was low due to pinholes observed in the membrane, this demonstrates the potential of perovskite materials in their selective surface ...
Further, in May 2024, The US government began delivering UAVs to its military as part of its government program to counter China's defense capabilities. Also, in March 2023, Chinese scientists developed a military drone that is capable of rapidly splitting into six separate units in midair. These drones are made with air separation technologies.
VSA typically draws the gas through the separation process with a vacuum. For oxygen and nitrogen VSA systems, the vacuum is typically generated by a blower. Hybrid vacuum pressure swing adsorption (VPSA) systems also exist. VPSA systems apply pressurized gas to the separation process and also apply a vacuum to the purge gas.