SeriesInformation ; 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 1499-1501 ; Abstract ; The use of Hot Melt technology in solar cell manufacturing achieves high aspect ratio silver lines that increase solar cell efficiencies due to reduced series resistance. This paper examines the relationship between aspect ratio and screen line width of fine Hot Melt lines after firing. The results demonstrate excellent print behavior for screen line widths down to 60 μm where aspect ratios over 0.20 with maximum values approaching 0.26 were observed in this study. The performance of solar cells using conventional ink and Hot Melt technology with 80 μm screen line widths are compared. Hot Melt technology enabled a relative improvement of 3.7% for the fill factor and 1.8% for the overall efficiency compared to reference cells utilizing standard screen printing.