Compared to conventional separation technologies, TLS impresses with its clean, microcrack-free edges. No crystal damage occurs on the separation edge – damage which is otherwise common to date due to the displacement of re-solidified silicon in the ablation region. As opposed to laser cutting, no bulging and no formation of particles occur, because the substrate is merely heated and not vaporized. The mechanical stability of TLS™-processed solar cells is significantly greater than conventionally processed solar cells. The process leaves no residue. The few micro-liters of DI water required for cooling immediately evaporate.
TLS allows feed rates of up to 300 mm/s. With that TLS technology achieves up to triple the processing speed of conventional ablation and separation methods. Throughput averages at around 10,000 half-cells per hour. The process takes place “on the fly”.