Electronics Forum | Thu Nov 20 18:57:52 EST 2014 | warwolf
I can only say it looks okay for what you need, you will want a dual wave system it can make things so much easier. One thing to check would be the wave nozzle sizes I can see that the conveyor will do up to 15" but thats not to say the nozzle is
Electronics Forum | Wed Jun 24 18:50:31 EDT 2020 | premkumar_haribabu
Dear experts, We are in stage to fix lapse or hold time between pre-bake to reflow process ( SMT ) for flex-rigid PCB, usually for flex pcb , we need to assemble as early as possible once after baking & if not , we can store in humidifier up to some
Electronics Forum | Thu Sep 09 20:48:12 EDT 2021 | laserstencils
I do not know of a way to measure the nano-coating. However, it is easy to check if it is still on the stencil. Simply use a 'sharpe' pen and try and mark the bottom (PCB) side near any openings. If it easily marks, then the nano is no longer present
Electronics Forum | Wed Feb 18 12:08:04 EST 1998 | Eyal Epstein
Hi, I am from Celtronix Ltd. we are a provider of Odd Form assembly equipment and have gained a lot of experience in double side reflow, both the chemical side of it as well as the automatic insertion of all types of TH components in paste. Enclosed
Electronics Forum | Wed Oct 17 09:38:55 EDT 2001 | fmonette
Dear Daniel, I assume that these components are moisture-sensitive. If they have absorbed too much moisture prior to reflow you might be experiencing popcorning. This typically shows up as a bulge over the surface of the die, in the center of the p
Electronics Forum | Thu Aug 21 21:05:39 EDT 2003 | Tom B
Dan, We, do alot of double reflow. Your right we typically see alot of the standards components, SOT's, SOIC's, Chip stuff. The largest we do with out adding epoxy is some 32pin PLCC's. We have several assemblies were were doing PLCC44's, Sockets
Electronics Forum | Thu Apr 14 18:51:19 EDT 2005 | KEN
What side is the short occuring on. Topside or bottom (solder) side? 2. Pitch of hole pattern = ? 3. Your x-ray may not have the resolution or DSP capable of detecting this defect. How does your profile look? Is this a true short or the result
Electronics Forum | Tue Apr 25 09:43:35 EDT 2006 | TMC
I am in the process of profiling some 8"x10"x0.063" double sided boards in our 4 zone oven(4 top and 4 bottom heaters). Was wondering if I can create a profile so that the components on bottom side of a board do not reflow while the componets on top
Electronics Forum | Wed Apr 24 13:49:19 EDT 2019 | griinder
I have a support question concerning setting the gridlock tooling in manual mode on a MPM Momentum Elite. I am printing the top side (bottom is populated with parts) of a thin, flimsy PCB. The Grid lock tooling bows the PCB upwards in Auto mode, beca
Electronics Forum | Mon Apr 03 23:17:51 EDT 2000 | Brian G
We have been experiencing intermittent problems with the solder masking bubbling up from the bottom side of the board, after wave soldering. Our board fabricator claims that none of his other customers are experiencing this problem, and that it is pr
