Saint Gobain like Semiconductor Giant TSMC is betting on Copper Indium Gallium Selenium (CIGs) Technology rather than the mainstream crystalline silicon technology.CIGs is getting the most significant investments these days compared to other thin film technology.Yesterday Ascent Solar (ASTI) got an IEC certification for its flexible modules which would enable it to target the mainstream rooftop market from niche applications earlier.Miasole has improved the efficiency and costs of it CIGs greatly while Nanosolar can’t be counted out because of its strong backers.Solyndra however remains mostly in the shadows despite around $1 billion in private investment.Stion is another strong contender partnering with TSMC and also thinking of opening a plant in Taiwan on its own as well.Saint Gobain is already a big player in the solar market as it suppliers glass to a lot of solar companies for their modules.Getting into panel manufacturing will further allow it to get a foothold of this new potentially giant industry.Du Pont,Dow Chemicals,Corning all have considerable presence in the solar equipment market as well.