11 October 2017Manufacturing / Production Technology, Hardware & Services
Kester NP545 is a zero-halogen, lead-free, no-clean solder paste formula designed for consistency and repeatability. It is extremely stable and has an unrefrigerated shelf life of 12 months with no print or solderability degradation. NP545 consistently delivers paste transfer efficiencies of 0,55 to 0,5 AR. The paste is also fully capable of printing and reflowing 01005 components, even in air reflow, with minimal graping behaviour. NP545 is classified as ROL0 per IPC J-STD-004B.
Also from Kester comes SF800-LR, a zero-halogen, low-residue, low-solids, organic based liquid flux designed specifically for tabbing and stringing applications. The formulation delivers excellent solderability in module assembly processes utilising conduction, IR and convection reflow. It is formulated to deliver minimum flux residue, thus eliminating post cleaning after soldering. Cells are dry and cosmetically clean as they exit the tabber and stringer equipment.
SF800-LR provides excellent solderability on all type of metalisations. The formulation is also designed to deliver excellent peel force that results in long-term stability of the solder joints.
For more information contact Allan McKinnon & Associates, +27 (0)11 704 3020, [email protected]
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