Electronics Forum | Fri Nov 22 13:41:55 EST 2002 | cristiano
We are experiencing problems with a smartmedia connector during the reflow solder process. The connectors stay a little bended after the oven. In this case the middle leads are not solded, because they stay with no contact on the board. The conector
Electronics Forum | Fri May 28 17:44:51 EDT 1999 | Glenn Robertson
| I discovered that we have some gold plated (30 mico in.) through hole connectors which were Paste In Hole soldered (60 sec at reflow) on a HASL PCB. Do we have an embrittlement reliability issue? The calculated volume % of gold in the joints is abo
Electronics Forum | Fri May 28 17:30:35 EDT 1999 | Dave Clements
I discovered that we have some gold plated (30 mico in.) through hole connectors which were Paste In Hole soldered (60 sec at reflow) on a HASL PCB. Do we have an embrittlement reliability issue? The calculated volume % of gold in the joints is about
Electronics Forum | Sat Aug 14 21:31:31 EDT 2004 | Daveylau
I'm currently working in a SMT factory in China. I'd like to know what preparation that I would need to change from leaded to lead free soldering. 1.Starting with the PCB production, things that I need to concern about are solder mask, Cu protection
Electronics Forum | Wed Jul 06 15:26:12 EDT 2022 | glasscake
No experience with low temp solders for PIHR but we do use standard lead free 245-255 peak profiles on high temp connectors frequently. Honestly the added cost of the high temp connector pays for itself in labor. I almost always use oversized apertu
Electronics Forum | Fri Sep 06 14:03:18 EDT 2013 | horchak
If you are a CEM you are setting yourself up for failure and will be left holding the bag. Flash gold has one purpose. It is a protective coating for the base medal to keep it from oxidizing. It is very thin and will be absorbed into the solder joint
Electronics Forum | Wed Jun 29 12:31:32 EDT 2022 | proceng1
I don't know about that paste, but I can give my experience trying intrusive reflow (pin in paste). Using standard Lead-Free paste, we often had issues. It seems that many ROHS parts can't actually handle reflow ROHS temperatures. So the fact that
Electronics Forum | Mon Sep 28 10:12:53 EDT 1998 | Chrys
| Hello, | I need some users information about "Air knif" in wave soldering: | 1. Does it decreases bridging ? | 2. Is it self installed of a purchesed kit (if purchesed, who are the recomended vendors) ? | 3. Any other information about the issue. |
Electronics Forum | Thu May 28 09:23:59 EDT 1998 | Chrys
| Hello, | | I need some users information about "hot air knife" after the wave | bath: | - Defects reduction ? | - In what kind of boards(TH/SMT SOICS ect.) it is applied ? | - Where can I purchase it as a retrofit (Soltec Delta 6622cc) ? |
Electronics Forum | Mon Jun 12 09:47:18 EDT 2006 | patrickbruneel
Hi Grant, You definitely have a pre-heat problem and not a flux problem. Pallets together with the BNC connectors put a large thermal demand on your pre-heating. 3 zones would be a good investment even with leaded solder due to the high thermal dema
