- First TinPad systems delivered for mass production
- Successful module certification for cells with tin rear contacts
Freudenstadt. The SCHMID Group announces the delivery of the first TinPad systems for the application of tin contacts on the cell rear side in photovoltaics mass production. The certification of modules with the silver-free contacts has already been passed successfully. Dr. Christian Buchner who leads SCHMID’s cell business unit, explains the influence of the technique on cell quality: “We apply the tin contacts on a full-faced aluminum rear side. This closed layer improves rear side passivation which leads to an increase of cell efficiency by 0.2%”
SCHMID’s TinPad systems achieve silver savings of about 3 Eurocents per cell for fast amortization time of the investment. Also the quality is excellent down to the last detail: on the specified aluminum paste the tin contacts reach twice the peel off strength than required.
The TinPad is based on a technology under license from SCHOTT Solar and has been awarded with the Intersolar Award 2012.
