Electronics Forum | Mon Jul 24 09:29:14 EDT 2017 | emeto
Precisely! Your reflow profile is what proves temperature on the pad is right. X-ray is your visual representation of the result - customers love to see that you are correct.
Electronics Forum | Wed Aug 09 10:51:22 EDT 2017 | cbeneat
I have a question for the experts. After a panel is printed, how long is too long for the panel to sit prior to reflow? I understand each paste will be different, wondering if there is a general rule of thumb?
Electronics Forum | Thu Aug 10 11:32:34 EDT 2017 | dleeper
You could always take a scrap board, paste it, and let it sit out over night. Reflow it and then you should have a nice visual aid, covered in solder balls and grainy, irregularly shaped solder mounds.
Electronics Forum | Wed Aug 16 14:36:06 EDT 2017 | duchoang
Not enough solderpaste. Uneven solderpaste volume on pads. Bad quality of caps ( Metal ends), try new cap manufacturer, sound weird, huh!! but that happened to me. Good luck.
Electronics Forum | Fri Aug 25 04:43:58 EDT 2017 | praveenmuthusamy
Thank you so much for your valuable feedback . Root cause was found that amount of solder paste printed on board is uneven. Uneven solder paste printing was Due to misalign of backup support pins in PRINTER. Problem was rectified after changing backu
Electronics Forum | Sat Aug 26 09:50:14 EDT 2017 | v037022
Luckly u found the root cause :) Don't you use SPI or some inspection machine? To prevent the trouble can happen next time, in my opinion, U shoud have inspection tool or Stencil design change to increase amount of solder.
Electronics Forum | Thu Feb 15 15:20:43 EST 2018 | dleeper
Auto chain oiling is a must have feature in my opinion. You can't have too many heating zones! More zones allows more finesse in your profiles.
Electronics Forum | Thu Feb 15 16:12:16 EST 2018 | stephendo
When running a recipe can you view and edit other recipes? Or can you only look at the settings of the recipe being run?
Electronics Forum | Mon Sep 18 01:47:18 EDT 2017 | bukas
I would go with wire thickness + 0.4 to 0.8 mm for pad width, and pre-tinned lenght + 0.5mm what seems to me like problem is that it can easily roll off the pads in reflow oven
Electronics Forum | Tue Oct 10 15:20:15 EDT 2017 | emeto
Don't beat yourself up. I liked your response - it totally covered the question and was more polite that the question itself..... and I WANT ice cream!
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