In my last blog post, I gave a brief overview of the attributes and advantages of our new LV1000 flux coating formulation. I also discussed the standard advantages of using preforms, as opposed to solder paste. In review, LV1000 solder preform flux coating offers a:
- uniform, repeatable coating as low as .5% by weight
- halide-free formulation, without sacrificing strength
- low residue, gloss coating that does not clog pick & place nozzles
There is one more attribute that I would like to discuss. While wetting is a good thing, where soldering is concerned , there can be too much of a good thing. Excessive wetting is a bad thing when components are in close proximity to one another and you need the solder to stay in a confined area. Excessive wetting can be problematic, causing electrical shorts which will, very quickly, become costly.
Given the increased level of control in flux volume application, the LV-Series is pinpoint accurate to .5% by weight. This not only ensures a very uniform and consistent coating, it promotes wetting only where intended, and mitigates wetting outside the intended soldering area.