Good Morning
Again I am looking for some help. We visited 4 different board shops last
week and got some good feedback on our solderability issues.
One of the things they stated is if the thickness of HASL drops below 50
micron/ microinches I am not sure which, it would affect solderabilty.
I have looked thru the IPC specs on Boards and solderability and have found
nothing on the min and max thickness for the solder. We use 63/37 solder
surface on our boards.
We are thinking of putting a min thickness spec on our B/P's is this
feasible or not. Also what is the standard that relates to this or the
industry standard that is used?
Thanks in advance

Tom Oliver
QC Supervisor
Eagle Comtronics
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