New Quality In Solar Cell Processing: Jenoptik's JenLas Disk IR50

The Laser Systems Business Unit showcased at Photonics West its JenLas disk IR50 for solar cell processing. The laser combines perfect beam quality in the infrared wavelength range at 1030 nm with a flexible tunable pulse length.

Consequently, the 45-watt system is ideal for the laser drilling of silicon wafers, which then allow the efficient production of back-contact solar cells. The electrical efficiency of the cells can be increased through the use of MWT or EWT (Metal Wrap Through und Emitter Wrap Through) technology. In order to increase the active surface area of the cells, in the case of both technologies the contacts are laid from the front to the rear side of the cell. The contact finger that are currently used as standard and covers parts of the active surface area can therefore be dispensed.

The company will also present a range of diode lasers, fiber lasers and diode-pumped-solid-state lasers for OEM and R&D customers for different applications.

Target applications in material processing are marking, deep engraving, ablating, structuring, cutting and drilling for electronics, semiconductor, automotive, photovoltaics and packaging markets. Life science lasers for ophthalmology and dermatology and lasers for show & entertainment will be exposed too.

SOURCE: Jenoptik