Electronics Forum | Thu Feb 17 14:39:39 EST 2005 | JB
We have PCB's that have been poorly designed and do not have enough support. A quick fix, so they don't bow in the oven, is to set them on a stronger frame, before reflow, from a panel that has been singulated. Single or double sided? Hope I inte
Electronics Forum | Fri Feb 18 10:19:55 EST 2005 | aj
Hi, As stated by everyone ,you really should have a Profiler and be checking the oven at least once a week. As a quick fix to Identify if you are reaching reflow temp at all, I would recommend that you buy some Thermal Indicators (temp. stickers)th
Electronics Forum | Thu Mar 17 11:07:08 EST 2005 | Dougs
I'd agree with Justin, we do double sided reflow on most of our boards with fine pitch QFP's both sides, you do have a problem somewhere else, what size is you board? Is it warping slightly? What kind of oven are you using? Is it convection? fans
Electronics Forum | Wed Apr 06 15:28:04 EDT 2005 | patrickbruneel
Soldering PTH in reflow makes the process a lot more dependent on the physical forces in soldering (capillary force vs. gravity). Reducing the topheat in your oven will help the capillary forces (opening the hood solved the problem). Heat rises so if
Electronics Forum | Mon Apr 11 06:37:59 EDT 2005 | amstech
As long as you have a continuous profile with required soak and dwell periods, the zone lengths do not matter. For lead free, usually ramp to peak is preffered.that is with minimum soak (you can not avoid soak anyway. You can achieve the profiles irr
Electronics Forum | Tue Apr 12 10:18:31 EDT 2005 | Dan
I have one of these before our oven, and there is no way to control the speed of the belts. Checking their website produces nothing. We have the unit open, but nothing inside appears to be adjustable. Anyone know where I can find a manual for this? P
Electronics Forum | Thu Apr 14 05:20:58 EDT 2005 | aj
All, I am considering trying out the above to try and eliminate some of my defects on the wave process aswell as reducing cycle time etc. Incase of unfamiliarity with what it is : basically there is a Solder Preform present on the Header/Connector a
Electronics Forum | Tue May 10 13:47:17 EDT 2005 | amejia
I currently use Chemask CM8 Peelable Masking which currently takes 30 - 60 minutes to cure. Does anyone know of another solder masking which cures in less time at room temperature. I know that curing times decrease using an oven, but that is not an
Electronics Forum | Wed May 11 10:40:10 EDT 2005 | pr
Are any of you shutting down all manufacturing machines when a thunderstorm approaches? My company is/has been doing this forever and tell me it's to protect the machines. I could see doing it to protect boards in the machines (except we have battery
Electronics Forum | Tue May 24 13:18:21 EDT 2005 | dphilbrick
The Luxeon probably are the brightest available. I say probably only because this changes every day. The Luxeon require special mounting as they must be mounted to an aluminum cored PCB with thermal adhesive and then the leads soldered to the PCB.
Reflow ovens for automated SMT PCB assembly, specializing in lead free processing and nitrogen reflow. The best convection reflow ovens on the market.
4 Vreeland Rd.
Florham Park, NJ USA
Phone: 973-377-6800
