Friday, March 31, 2017

Forge Nano scaling up ALD on particles to metric tons level

ALD on particles and powder is a very promising next thing to shoot ahead in ALD. While many are focusing on flexible OLED barriers an backside solar cell passivation I am betting ALD on powder will take over some day - there is just much more surface area powder being shipped than windows, panels & displays (I think...) and those are flat while particles are 3D with high surface area -typical ALD arguments.

 
According to a recent newsletter from the Forge Nano, formerly known as PneumatiCoat Technologies, they have raised $20 million in Series A Funding. This has allowed them to move into a new 12,000 square foot facility in Louisville Colorado and scale up their 200 kg / day pilot plant to a new 1000 kg / day Semi-Continuous ALD particle coating tool.

As if that´s not amazing enough - they report to be on schedule to complete a next generation tool to a capacity to several tons per day.  

Here you can read an excellent blog with all the references you need by Prof. Weimer in Riikka´s ALD History Blog "Guest post by Weimer: Early History of Particle ALD at the University of Colorado" : LINK
 
Pleas also do check out these fresh new US Patents and some of the cited publications :

US9,546,424 (ALD Semi-Continuous Particle Coating Process)
US9,284,643 (ALD Semi-Continuous Particle Coating Apparatus)

References

1 *King, David M., et al., "Atomic layer deposition on particles using a fluidized bed reactor with in situ mass spectrometry". Surface and Coatings Technology 201 (2007) 9163-9171.
2 *Wank, Jeffrey R., et al., "Coating Fine Nickel Particles with Al2O3 Utilizing an Atomic Layer Deposition-Fluidized Bed Reactor (ALD-FBR)". J. Am. Ceram. Soc., 87 [4] 762-765 (2004).
3 *Weimer, Alan W., "Particle Coating by Atomic Layer Deposition". PARTEC 2004, pp. 1-4.