Electronics Forum | Fri Oct 24 06:55:48 EDT 2008 | clampron
Good Morning WS, If you experieced the solder balls after reflow of a bare board through the oven, then the source of the solder is either the oven or the board. I have had boards with untented via's that were HASL'd that had entrapped solder and fl
Electronics Forum | Thu Oct 23 23:38:48 EDT 2008 | pathakvj
We have 8 layer HASL PCB. We saw molten solder blobs / balls on op side of assembled PCB. (to check, if this was a bare board problem), We passed bare board as received thru, SMT reflow oven and saw solder balls on top side of board. What could be th
Electronics Forum | Thu Oct 30 19:59:05 EDT 2008 | gregoryyork
solder ball was caused by hasl process not reflow. seen before many times, look around wells of smt on bare boards should be more of them
Electronics Forum | Thu Aug 06 09:51:20 EDT 1998 | Bob Willis
This text may be of interest to any one with tin lead spots Guide to Solder Spots - A New Plague in Manufacture ? So what are solder spots ? They appear to be the next big problem in modern reflow assembly in fact in any process that involves solder
Electronics Forum | Fri Aug 14 08:59:51 EDT 1998 | Dave F
| | | Hi, can you please tell me how to make green coating and through-hole plating of PCB? Thanks! | | | Xingsheng | | Xingsheng: Welcome. | | Bible on PCB fabrication: Printed Circuits Handbook, Clyde Coombs, McGraw-Hill | | Web resources: htt
Electronics Forum | Fri Aug 14 07:27:42 EDT 1998 | Earl Moon
| | Hi, can you please tell me how to make green coating and through-hole plating of PCB? Thanks! | | Xingsheng | Xingsheng: Welcome. | Bible on PCB fabrication: Printed Circuits Handbook, Clyde Coombs, McGraw-Hill | Web resources: http://www.pw
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