Ribbon for solar module assembly
19 April 2010
Cookson Electronics Solar Materials has introduced a new range of solder coated copper Alpha PV Ribbon for solar panel assembly.
Having demonstrated excellent, repeatable pull strength, Alpha PV Ribbon is available in Electrolytic Tough Pitch Copper (ETP 110) 99.9% pure and Oxygen free Copper C10100 (OFE / CDA-101) at 99.99% purity, the base copper, ribbon can be can be ‘half hard’ for greater tensile strength or ‘dead soft annealed’ for enhanced flexibility and elongation under tension.
The choice in solder alloy coating is extensive, but for customers requiring a lead containing, fused alloy coating there are tin/lead and tin/lead/silver combinations but, akin to the electronics assembly industry, many panel assemblers are already using or considering lead-free options.
Currently, the most popular lead free coating is tin/silver but Cookson’s proprietary lead-free tin/silver/copper alloy (SACX 0807) is fast becoming an alternative. Designed to deliver maximum value and processability, SACX 0807 maintains solder joint reliability while delivering savings thanks to its lower silver content.
Compatible with standard tabber/stringer assembly soldering systems, Alpha PV Ribbon is available in a variety of widths: 1,5mm, 2.0mm, 2.5mm and 4.0mm with other sizes made to order, on both 4kg and 5kg reels. Winding onto the DIN 125 or USP4 reels is precise with very low camber to ensure that the material is presented in optimum condition to prevent ‘snagging’ during use.
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