Electronics Forum | Mon Jul 18 12:24:53 EDT 2016 | oleksz
Some people involved in PCB assembly process claim that SMD components reflow soldering problems are often caused by traces running under a component. According to this claim, trace (or any copper) covered by solder mask and placed under SMD componen
Electronics Forum | Mon Jul 18 12:25:30 EDT 2016 | oleksz
Some people involved in PCB assembly process claim that SMD components reflow soldering problems are often caused by traces running under a component. According to this claim, trace (or any copper) covered by solder mask and placed under SMD componen
Electronics Forum | Wed Nov 11 13:51:19 EST 2015 | duchoang
Could you give us more details. Picture, profile, solder paste ...?
Electronics Forum | Thu Nov 12 11:21:42 EST 2015 | davef
IPC J-STD-003. Solderability Tests for Printed Boards
Electronics Forum | Mon Nov 09 06:28:03 EST 2015 | recard
Hi guys, we have a problem and I hope something can give nme some new information. We have big solderability problems with a gold plated board. We changed the paste already, but there is no improvement. Could the Vapor phase Technology cause the p
Electronics Forum | Thu Sep 21 12:36:45 EDT 2006 | bradlanger
Just wondering if there are any users of SN100C lead free hasl finsh out there. If so what kind of results are you getting as far as solderability is concerned?
Electronics Forum | Wed Sep 27 23:52:28 EDT 2006 | fctassembly
Hello Steve, Yes, there are differences in the various alloys and I have described briefly below these differences: SN100- a common name for 100% tin that is used to increase the tin content in 63/37. SN100C-Name for Tin/Copper/Nickel/Germanium all
Electronics Forum | Thu Oct 05 11:59:51 EDT 2006 | Mario Scalzo, SMT CPE
Good afternoon all! Theoretically, there should not be any issues soldering to the SN100C as the tin content of the molten paste alloy should wet to the finish with no problem. I would just ensure that the peak temperature of the joint is above the
Electronics Forum | Tue Oct 03 22:42:49 EDT 2006 | C.K. the Flip
Cuculi, I'll have to go ahead and disagree with you. Very few PCB Suppliers (if any, and if there are any, they're lying) will promise an exact thickness spec. be it Sn/Pb HASL or this fancy, schmancy Sn100c HASL balogna. After all, the HASL proce
Electronics Forum | Fri Sep 22 09:45:26 EDT 2006 | bradlanger
Greg, All the above. It looked like it was going to be a drop for SNPB HASL at first but after a few thousand boards we started running into all the problems you are describing. We first started seeing non wetting on SMT pads. The solder would wet t
