On the surface (pun intended) there would seem to be of little interest or need to know more about the recent acquisition by Applied Materials of a small cap semiconductor equipment supplier, Semitool. The Montana-based wet processing specialist has been around for a long-time and perhaps because of where it is based, compared with many equipment suppliers clustered in Silicon Valley, it gets little attention in comparison. However, solar cell producers may well find that they get a knock on the cleanroom door soon from Applied, to discuss porous silicon processes and a wet processing tool called the ‘Raider.’