Printed Circuit Board Assembly & PCB Design Forum
SMT electronics assembly manufacturing forum.
Views: 6216
I am seeing poor quality solder joints, mostly on 0402 compo... - Aug 25, 2008 by dyoungquist
every time that i have seen that kind of problem where I w... - Aug 25, 2008 by WRONGWAY
Hello, Maybe you can get closer to a solution by posting ... - Aug 25, 2008 by Gary Z.
The problem is occuring on more than one part # of our 0402 ... - Aug 25, 2008 by dyoungquist
Here is a post of the current profile. I have contacted... - Aug 25, 2008 by dyoungquist
Well, it's difficult to play with the profile without knowin... - Aug 27, 2008 by Vlad
Have you given this information to your paste manufacturer??... - Aug 27, 2008 by garyr
Does your paste provider recommend a TAL? For the leaded ... - Aug 27, 2008 by robgd3
Again, our paste manufacturer specifies TAL to be 30-60 seco... - Aug 27, 2008 by garyr
Here's a good thread on lead free reflow recipes ... - Aug 27, 2008 by davef
You wouldn't think that placement would affect dewetting or ... - Aug 28, 2008 by robgd3
Have you tried to run the same process but with diffrent sol... - Aug 28, 2008 by janz
You're using a SAC305 chemistry? Double check your liquidus ... - Aug 28, 2008 by A Very Frazzled Man
Couple of points: * We'll tell ya, although it's tough to t... - Aug 28, 2008 by davef
Well, as I've said before, a simple cross-section will shed ... - Aug 28, 2008 by Vlad
Slow your conveyor down and see what happens. Your profile ... - Aug 29, 2008 by Real Chunks
Very interesting problem because it shows how systemic this ... - Aug 29, 2008 by Gary Z.
and put a few bucks in your pocket for free. ... - Aug 29, 2008 by WaveMasterLarry
small pads like 0402 tend to get hot quite easily. looks lik... - Sep 02, 2008 by Wilma
Nope. I'd be happy to do the analysis for free just to prove... - Sep 03, 2008 by Vlad
> small pads like 0402 tend to get hot quite > easil... - Sep 28, 2008 by Ron
Sorry it has taken me so long to respond. I got pulled off ... - Dec 15, 2008 by dyoungquist