Solar cells: Laser marking and structuring for dielectric layers, laser drilling, laser firing and laser doping are needed for most modern and future solar cell concepts. Only an optimal process design enables cost effective process improvements. Jens Theobald, research engineer at the International Solar Energy Research Center Konstanz (ISC), Richard Hendel, Sales Manager for Photovoltaic Applications at Rofin-Baasel Lasertech, and Stephan Grosser, Team Leader, c-Si Defect Diagnostics, Fraunhofer Center for Silicon Photovoltaics CSP, report on an approach using laser-ablation processes for current PERC solar cells and applications for emerging cell concepts, i.e. bifacial n-type solar cells.