The TOPAZ LED system is based on a granite portal with linear axes. The substrate is gripped on one or both sides and moved back and forth in the system at high speed. A stationary granite bridge carries the axis of the structuring head and is mounted underneath the substrate, enabling high throughput glass side structuring (GS). To achieve laser edge deletion along all glass edges, the glass is moved while the laser edge deletion head is at rest and vice versa. Even the removal of stripes in the middle of the glass is possible.  The glass substrate is supported against bending during its movement to ensure stability and especially a stable focal plane for the laser. Accuracy, robustness and process stability are achieved by the granite base and its excellent vibration damping and low coefficient of thermal expansion (CTE). This guarantees a sustainable production of high-precision and high-quality CdTe thin-film solar modules.