Electronics Forum | Tue Dec 16 14:26:33 EST 2003 | russ
Has anyone possibly moved the location of your thermocouples? if not check the calibration of your temp controllers/ thermocouples. Russ
Electronics Forum | Wed Dec 17 14:39:18 EST 2003 | Dean
How do you know your profiler is correct? Do you have a pyrometer you can verif the PCB temp with?
Electronics Forum | Thu Jun 22 11:09:11 EDT 2000 | C.K.
TYPE of Preheater makes a HUGE difference, as well. Infrared (IR) and convection, 2 of the most common types of preheaters, have very different heat transfer characteristics..... Convection heats your board more uniformly, so you'll see very small
Electronics Forum | Thu Aug 24 19:26:07 EDT 2006 | darby
Dave, Cygnal was taken over by Silabs. I based my design on the second link that you provided. Tell me folks, are you using one large pad with only the stencil having the grid, or are you actually breaking up the large pad into grids with mask around
Electronics Forum | Sat May 28 06:40:24 EDT 2005 | steve
Aim offers excellent soldering fluxes. That said your probably dealing with the local representative. The FIRST question to ask when evaluating any chemistry is "What is the Availability of the flux". Distributors don't necessarily stock all of a man
Electronics Forum | Fri Jan 23 11:27:45 EST 2015 | charliedci
Per our selective solder provider, they recommend a PSA type generator to supply the needed 99.999% pure N2. The membrane type (which we have) does not provide the minimum (99.995%) purity necessary for lead free wave soldering. They happen to sell P
Electronics Forum | Thu Aug 29 20:01:23 EDT 2002 | davef
Many people use the same spacing [and pad designs] as they use for primary side SMT. We don�t. DOWN STREAM SMT-TO-SMT SPACING: In addition to proper orientation, components cannot be immediately upstream of terminations that are to be soldered or b
Electronics Forum | Fri Jan 15 10:52:27 EST 1999 | John
| Hi all, | | I thought I'd use this forum to ask a couple general questions on fluxes for manual operations: | First - Is it OK to use a wave soldering type flux (specifically OA)? Thinking about activation temperatures and the ramp rate of the wav
Electronics Forum | Wed Dec 17 18:56:02 EST 2003 | Chandler
Kev, You seem to have a very good knowledge of your process and can convey it clearly and precisely. My advise to you is to dis-regard the BS most of these guys churn out and follow your own gut. They will ask a s**t load of irrelevant Q's in some fu
Electronics Forum | Tue Jan 21 13:51:19 EST 2014 | rgduval
Armando, Is the problem in the same spot on the board with every run? If so, there might be something about that particular location that is part of the cause (ie. ground or power plane connection). It sounds like you're seeing blow holes, or insu
