Electronics Forum | Thu Aug 28 11:15:05 EDT 2008 | omid_juve
I've been there. Soldering no lead parts in a > leaded world can be difficult. Sounds like you > are not wetting to your parts becasue you ar enot > getting hot enough. Here's the trick - you can > turn up your profile to look like a no-lead
Electronics Forum | Thu Apr 05 02:54:34 EDT 2001 | GregH
Hi, We are planning to use RMA flux based Solder Paste for our line. We are currently using a No-Clean Solder Paste. Can I use an aqueous cleaner to clean my board with the above paste ? How will I clean the board ? What are the advantages and disad
Electronics Forum | Thu Apr 05 02:56:09 EDT 2001 | GregH
Hi, We are planning to use RMA flux based Solder Paste for our line. We are currently using a No-Clean Solder Paste. Can I use an aqueous cleaner to clean my board with the above paste ? How will I clean the board ? What are the advantages and disad
Electronics Forum | Thu Apr 05 02:56:11 EDT 2001 | GregH
Hi, We are planning to use RMA flux based Solder Paste for our line. We are currently using a No-Clean Solder Paste. Can I use an aqueous cleaner to clean my board with the above paste ? How will I clean the board ? What are the advantages and disad
Electronics Forum | Fri Apr 26 12:18:24 EDT 2002 | Yngwie
Today the line experienced the white gloves turns green at the point of contact when holding fresh board that came out from wave soldering. Was that the effect of inproper solder mask curing at PCB house during fabrications ? For a proper cured solde
Electronics Forum | Thu Jun 19 10:36:54 EDT 2003 | Jacob
Hi all I am having a reflow problem. Recently we started using a through hole connector with solder flux bearing technology on a densly populated board. The connector reflows at the same time as the smt components through reflow. The problem I am ha
Electronics Forum | Tue Mar 20 03:21:32 EST 2001 | hany_khoga
Dear Mr. Stephen: After all boards we lost & hard time we had, the only convencing solution for us is to run a good pc_motherboard (which is our product)to confirm the experiment. After that we need to remove the big BGA ,clean & flux the PCB then s
Electronics Forum | Thu Jul 22 22:18:12 EDT 2004 | davef
Notes from an AIM No-Lead Presentation ... Wave Soldering * May require a higher pot temperature than tin/lead: 255-265*C * May require a change in liquid fluxes to compensate for the poor wetting of some alloys and high thermal stresses of the wave
Electronics Forum | Tue Dec 18 15:05:58 EST 2001 | blnorman
What is the maximum allowable thermal ramp rate for wave solder. We have a "short" machine used for selective soldering. To get the boards up to temp, we need to exceed our normal 2�C/sec. Are there any IPC documents governing this process? Anyon
Electronics Forum | Wed Jun 17 16:08:37 EDT 1998 | upinder singh
We are facing a problem of high contamination on boards after wave soldering. We want the contamination to be under 24 ugm/inch square. We are using a no clean flux with the spray fluxer unit of wave soldering. The contamination is higher on the end
