Polyimide a kind of Heteroaromatic polymers, whose Molecular structure containing polyimide-based monomeric unit. It is a super-performancde Engineering Plastic (250 degree heat can be a long-term job), and has an excellent mechnical and thermal dime
Quick Overview Max 400×600 mm soldering area Infrared ic heater T962C works automatically by micro-computer control. Can satisfy a dissimilarity SMD、BAG Soldering a request. Whole soldering process to complete automatically, easy to use, Adoption
Electronics Forum | Sat Aug 15 06:29:40 EDT 2009 | abeasia
Help, experiencing discolor of a white solder resist paint after reflow of 250 degree, it turned yellow. Have tried many paints, no luck. Anyone knows one that wouldn't change color and holds the white nicely? Thanks for your support in advance.
Electronics Forum | Wed Sep 16 00:03:55 EDT 2009 | linseeg
We encoutered few PCB after IR reflow the PCB pad change color from silver to yellowish / brownish. Our IR reflow peak temp is ~250 degree. The brownish cannot be remove with IPA as well. What is the main reason causing this issue?
