Electronics Forum | Tue Mar 20 13:51:38 EST 2001 | mparker
Contact http://www.circuittechctr.com. They have a rework process and sell the necessary materials. You can buy the complete system, or just the gold solution and use your own power supply for the electrolysis. Be sure to completely evaluate and und
Electronics Forum | Tue Apr 17 11:00:55 EDT 2001 | Steve
I have struggled with this myself. Usually where the pressure to clean the residue off is from the people who see the residue but do not understand the characteristics. I have not found a reason to clean residue off. A few people from our design gro
Electronics Forum | Tue Apr 17 19:35:55 EDT 2001 | Brian W.
I have only found one reason to clean the residue. On some high power/high impedance or RF circuitry, that little bit of residue caused electrical performance problems. Other than that, most people who want it cleaned are having it done for vis
Electronics Forum | Thu Jul 20 12:56:45 EDT 2000 | Bob Willis
That�s a good question which I will leave to others to debate further. I feel that there will be a need to examine and understand all the issues with lead-free and have as many practical solution as possible ready rather than waiting. There are sti
Electronics Forum | Thu Jul 20 12:23:00 EDT 2000 | Dave F
Bob: Please help us understand the effect of changing to lead-free solder paste on our processes better. Compare the following for tin-lead and lead-free solders: * Size of stencil apertures � amount of solder necessary for a reliable solder conne
Electronics Forum | Fri May 11 17:21:04 EDT 2001 | davef
Three main groups of depaneling equipment are: 1 Scoring: Limited to straight edges and mainly 90� angles 2 Routing: And a cloud of dust 3 Singulating: Hard tooled by board To get started understanding the suppliers look here: http://www.cassembly.c
Electronics Forum | Thu May 17 12:59:09 EDT 2001 | rwilliams
I would like to know peoples' thoughts on measuring solder paste height. I am having difficulty fully understanding its value. Is it better suited to a production environment, or more of a lab environment? Our screen printers are not fitted with on-
Electronics Forum | Tue Jun 05 22:18:47 EDT 2001 | Dreamsniper
I don't understand why you wanna do this. The vendor has done this part for you and actually they have a recommended glue / solder paste life on the stencil or pcb (e.g. 6 hrs, 8 hrs.). If you will stick with their recommendations you won't be lost p
Electronics Forum | Sat Jun 09 09:32:26 EDT 2001 | davef
Yes, your pallet will absorb / steal heat. It sounds like you are doing a good job in understanding the issues. Yes, the pallet could be the problem. Is this a new run that you are starting? Or has everything been OK, but recently you've begun to
Electronics Forum | Thu Jun 14 10:50:49 EDT 2001 | slthomas
I must be missing something.....why can't you simply attach thermocouples, profile the assembly, and adjust your zones as required to reach the parameters required by your paste and component specifications? Is there a restriction on that process fo
