We have a member who indicates that components (resistor networks) are outgassing during assembly, causing small and large pinholes and full bubbles on the board. If they reflow the boards a second time, the holes and bubbles go away, but they are concerned about the long-term reliability and possible contamination of the lead. (The end-product is Class 2 medical equipment.) Has anyone seen this before, and what types of problems might this cause long-term? Mike Buetow IPC Technical Staff 7380 N. Lincoln Avenue Lincolnwood, IL 60646 P: 708-677-2850, ext 335 F: 708-677-9570 [log in to unmask]