Electronics Forum | Mon Jan 07 13:09:35 EST 2008 | stevek
As I told you, some carriers (trays) are limited > to 75 degree maximum, and from time to time > employees do not pay attention to this. This is > one of the reasons. The second reason is that 90 > degree still be problematic in a case of rebake
Electronics Forum | Fri Jul 06 12:11:34 EDT 2007 | james
We are starting to see issues with using Kester WS R562 with lead free components. The joints look grainy on almost all of the 0402'2 and other small components. Some of the solder does not solder to the terminations. These are hybrid boards which
Electronics Forum | Tue Aug 22 09:49:39 EDT 2000 | galltp
Dr. Lee, We have seen a small decrease in shear strength for Pb/Sn plated components attached with Sn/Ag/Cu solder compared to components with a Pb-free finish. With the jump in the cost of Pd, we are struggling to define a practical Pb-free
Electronics Forum | Tue Jun 11 09:31:13 EDT 2019 | relaycz
Very cheap option are adhesive strips. Easy to use and if operator is carefull, there are no spilled components. https://www.steier.de/steierform/Anwendungen/Gurte-verbinden-SMD-Splice-Produkte/TOP-Splice-ESD-gerecht-orange.html
Electronics Forum | Fri Apr 20 13:04:51 EDT 2018 | dleeper
Have you tried using a larger nozzle? If the selected nozzle is too small, it won't provide enough force to hold the part in place. What kind of part are you having trouble with?
Electronics Forum | Thu Sep 10 12:32:31 EDT 1998 | Tim Scully
Heeeelllllp. I am a sales rep. ( I know I know, you can't help me with that. ha ha.) Actually, I represent a company that fabricates PCBs and assembles them under the same roof. We are a small to moderate volume house that is just getting into su
Electronics Forum | Wed Sep 18 12:35:56 EDT 2002 | stepheno
Fourth - > back to design of PCB. Are there solder dams of > mask between the pads? If yes, that helps. If > not, pay close attention to stencil aperture > width and be sure that the aperture deposits less > paste by 1-2 mils per pad, centered o
Electronics Forum | Fri Sep 11 09:30:30 EDT 1998 | Earl Moon
| Heeeelllllp. | I am a sales rep. ( I know I know, you can't help me with that. ha ha.) Actually, I represent a company that fabricates PCBs and assembles them under the same roof. We are a small to moderate volume house that is just getting int
Electronics Forum | Thu Sep 10 15:29:15 EDT 1998 | matthew park
Tim, What is it? Which ones are you talking about: 0.080" vs 0.008", 0.100" vs 0.010", or 0.050" vs 0.005" pitch devices . If you are saying 0.080",0.100" and 0.050", any pick and place machine can handle that. Well if not, one machine that is ca
Electronics Forum | Sat Nov 15 05:08:45 EST 2014 | grimus
Same side (component side) if You give me e-mail I can provide You more pictures. I'm making one stroke with same speed (I'm using closed proflow head and DEK printer). 5 mils thickness stencil. Products requirement - 3 IPC Class (75 % and more fill
