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 | Tue Feb 20 18:04:53 EST 2007 | coop
I am not familiar with the YV100XG pick & place but you might want to increase the mount height of these components The double stick tape isn't as thick solder paste. it might be pushing the component too far down causing it to twist. I encountered
Electronics Forum | Sat Feb 17 14:21:54 EST 2007 | Muhammad Haris
Hi All, I am using YV100Xg YAMAHA Pick and Place Mounter Machine and I am facing a tilting problem of PLCC 84 and QFP 240 pins ICs. I deeply checked about their vision files and place them on the double sided tape and found them ACCURATE on their pad
Electronics Forum | Mon Dec 22 11:09:21 EST 2008 | mfcat
We changed paste manufacturers rather recently and are now seeing SOT23s falling off after wave solder. These parts have a dual process... we stencil print paste, apply glue, populate then reflow. Only SOT23s fall off, chips are fine. We do not be
Electronics Forum | Thu Oct 02 01:47:57 EDT 2008 | myleb
I'm new to SMT. Now, i'm making program for SPI machine to inscpect for solder paste of SP60-MU. I think this is a very good printer but some times, my program shows only 50-60% of volume transfer; and the average height is very high: nearly 200 pct.
Electronics Forum | Thu May 26 07:53:42 EDT 2022 | jojoled
Hi.Thanks for reply. 1. - I guess after JETting the paste, the head will go aside, to allow head with HD camera(SPI) to do the job.....and thus if used for AOI , the same camera will be much higher above components, not damaging anything....this is
Electronics Forum | Wed Jan 26 20:52:06 EST 2005 | Chua
Hi, I'm going to evalute new solder paste and flux for wave-solder. Appreciate you could advise what are the things need to look out during the evalution. Any recommend step or proper way of doing solder paste and flux evalution. Appreciate your he
Electronics Forum | Fri Feb 09 02:30:50 EST 2007 | Muhammad Haris
What are Resins, Solvents, Activators, and Thickening Agents in Solder Paste and what are their helpful and harmful effects? AND What are the purposes/properties and effects of Sn(Tin), Pb(Lead), Ag(Silver), Bi(Bismuth), In(Indium), Cu(Copper), Ni(
Electronics Forum | Thu Jan 27 11:23:45 EST 2005 | russ
Well first off I wouldn't evaluate paste for a wave process. I would use solder bar instead. Flux - top side fillets and no shorting on the solder side, does it clean well after processing if using water soluble flux. How wide is the process win
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