Electronics Forum | Wed Aug 22 16:11:15 EDT 2007 | razor1
If the problem appears to be random... we had a similar problem. We found that the belt which feeds the PCB through the reflow oven would jump or lurch ahead. It was barley noticeable but if you have identified the frequency and time of the compone
Electronics Forum | Mon Aug 20 09:33:25 EDT 2007 | stepheniii
Your lighting would have to be pretty bad for it to be an issue. My gut instinct tells me you have bigger systemic issues. Operators will either be your best friend or your worst enemy. What percentage of boards have contamination? You might have t
Electronics Forum | Mon Aug 13 11:05:18 EDT 2007 | saaitk
Would I be correct in assuming that the solder used to attach the BGA ball to the device body should have a higher liquidous point that the solder used to attach the device to the board. If the peak reflow temp for SnPb is around 225 deg should the b
Electronics Forum | Tue Aug 14 16:23:31 EDT 2007 | stepheniii
I've never seen them used or even heard of them being used like this but you might want to look at http://www.sipad.com/ You will still have to work out other issues like how to keep the SMT on while you wave the LEDs. Maybe you can get these board
Electronics Forum | Thu Aug 30 06:57:56 EDT 2007 | simonalden
Hi we are currently experiencing a problem with solder contamination of the gold contact pads on our pcbs following the reflow process, possibly through sputtering. We have been advise that this can be caused due to the pcbs being humid or due to th
Electronics Forum | Fri Sep 07 12:19:20 EDT 2007 | guqing
We are having problem to develop lead-free (SAC305) reflow profile for big SMT electrolytic caps. The delta T of the joint of the cap with the rest of the board is too big to fit in the tighter lead-free window. Any suggestions regarding the total pr
Electronics Forum | Mon Sep 10 14:42:42 EDT 2007 | cyber_wolf
How big is the cap ? We successfully reflow caps that measure aprrox .750" x 750" at the base and are .678" tall. The ovens we use are Vitronics XPM's.(1230,1040 and 930) We also process these caps through our Omniflow 10. As stated, oven length wi
Electronics Forum | Tue Sep 11 11:40:17 EDT 2007 | shing
Please help to answer me the followings questions: 1. The optimum temperature for IC reapir (TSOP & BGA), since many IC found defective after reapir by hot air gun 2. How many time does a IC(TSOP & BGA) can pass throught the IR Reflow without defecti
Electronics Forum | Wed Sep 19 12:19:36 EDT 2007 | miguerre
Hi, We are lookin for somebody that would be able to repair a Sikama reflow soldering system model Falcon 3. The unit does not heat up, and the track stopped working as well. The machine is from year 1987 and the serial# 87-06-030 Also, if you hav
Electronics Forum | Mon Sep 24 12:47:37 EDT 2007 | PJ
I am doing some research on flux free/flux less SMT reflow soldering. Do you have any equipent/process recommendations? Does anybody use it for volume production and what are the constraints (finish, balls, paste, vacuum, pressure, size)? What is
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