Electronics Forum | Tue Apr 25 17:07:09 EDT 2006 | slthomas
"Why dont you guy look at the world leader in solder recovery" Why don't "you guy" try some punctuation? Why don't you provide some data to support your claims of "world leader" in a technical forum? You could be the world leader in bull$h!t and I
Electronics Forum | Fri May 12 13:56:37 EDT 2006 | timnop
Steve, Thank you very much for your reply. What I really need to know now is how you discovered these issues. Did you run this product in your wave solder machine, and for how long? Are you now using SN100c instead? Please mention the other issues if
Electronics Forum | Wed May 17 12:08:04 EDT 2006 | Mark
Hello, I have recived from customer PCB where he found that big SMD electrolytic capacitor just fell off. I checked this boards (FR4 , Au/Ni coating). I noticed that all solder remained on the termination of capacitors and looks ok but on the boar
Electronics Forum | Fri May 26 10:17:21 EDT 2006 | pjc
Here are settings for a Vitronics SMR500 oven for Indium Corp. 5.1 No-Clean Pb Free solderpaste, the product profiled was of medium thermal mass: RTS, Temp C 120, 170, 195, 248, 264, conveyor speed was 43cm/min (17"/min.) Peak temps were reached in
Electronics Forum | Thu Jul 06 03:03:56 EDT 2006 | ronalds
Thank you all for your input. The MF300S Multicore flux is rated for lead free. There is not much dross or contamination. We are using nitrogen. I've tested the boards with the curing test of IPC-TM-650. I think you're all right about the preheat.
Electronics Forum | Wed Sep 06 11:08:09 EDT 2006 | Shep
I'm using an EKRA X5 printer. My QC department has been rejecting boards for "fibers" in solder joints. After investigation, I have determined that the fibers are coming from the stencil cleaner paper. I'm using JNJ Industries p/n 5404EK paper. A
Electronics Forum | Wed Dec 20 04:43:36 EST 2006 | greg york
Any decent flux would volatise off with the heat of the wave unless absorbed into the solder mask. Test this by trying to clean in alcohol or common solvent aerosol, if it does not clean then it is probably Mineral Salts from solder mask fillers. Ano
Electronics Forum | Thu Feb 08 04:38:47 EST 2007 | lupo
Hi everybody, Does anyone know how could be soldered shield (blindage) in SMT process ( SMT components inside), moreover that the SMT is double sided. I wonder how could be placed a component with H3xi21xL34 dimensions , and how capable will
Electronics Forum | Sat Feb 10 20:08:25 EST 2007 | colormaker
I just started a design where I will be placeing smt parts on both side of PCB. 50 parts on top side ranging from 0602 to SOIC8 and 4 SOIC LED's on bottom. How can I assemble with parts on both sides ? I have P&P,stensil printer, relfow and solder w
Electronics Forum | Mon Mar 12 11:53:52 EDT 2007 | realchunks
Hi Coop, Sounds like you are having top side wetting issues. Generally this is flux related, but with a foam fluxer, I'd kinda doubt it's the fluxer. Could be heat related as well. Try slowing the conveyor speed to verify. Long leads - hmmmmm.
