Electronics Forum | Mon Mar 19 11:20:10 EDT 2007 | realchunks
When you say "No wetting" you mean the paste looks the same as it did going in but dried out? Or is it that you are not getting toe fillets?
Electronics Forum | Thu Jul 05 15:13:46 EDT 2007 | joeherz
We've seen non-functional QFNs cured by touching up the toe fillets. Especially with parts that are not plated on the edge/face where you get minimal/no wetting due to oxidation of bare copper. I'm not suggesting that you touch everything up but th
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. No wetting, whatsoever, even after cleaning and fluxing. Are there any special techniques for soldering aluminum wire? More Questions Component Rework Clarification Soldering Minimum Space Requirements Gum and Hard Candy at a Workstation Soldering onto Platinum Pins Inspection Criteria for Unique Lead Geometry Question
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– 500 gm Type-4 No-Clean Powerful Wetting Lead-Free SAC305 Solder Paste Good and Consistent Wetting Spreading to Oxidized Metal Surface
