Electronics Forum | Thu Aug 30 15:37:04 EDT 2018 | davef
What if you were this guy [PeteC] and you knew this batch of boards had some goofball issue that messed with product quality, increased rework and all that AND you still had to run them? I've had to eat from the pie before. I'll bet you have also.
Electronics Forum | Fri Aug 31 07:00:15 EDT 2018 | cupet
Hello guys, first of all I would like to thanks everyone for their posts. I really appreciate it. We are now communicating with vendors about damaged boards. And something about the analysis of damaged boards. We have not yet done, but we are trying
Electronics Forum | Fri Sep 21 15:27:34 EDT 2018 | stv_herring
Peter, Based on the images, it looks the HASL is too thin. I have seen this a few times when the pcb supplier uses too aggressive of a process to remove the solder. This can lead to oxidation of the underlying copper. An XRF of a pad that won't take
Electronics Forum | Fri Aug 24 13:21:59 EDT 2018 | babe7362000
What do others use as far as solder paste type, stencil thickness and aperature size for a .4mm Ball Pitch CSP. Ball diameter is .3mm. Please let me know your thoughts or what you use. Thanks
Electronics Forum | Wed Aug 29 03:16:20 EDT 2018 | cannizzaro
It is recommended that the thickness of the stencil of 0.1mm, the steel mesh should be partially nano-coated. It is best not to dry easily, and the particles are not easy to be too large. I have tried ALLPCB for this kind of BGA in the past and they
Electronics Forum | Fri Aug 31 16:34:53 EDT 2018 | dontfeedphils
I'm putting together a spec for testing solder tips for resistance, voltage leakage, and temp tolerance. I've found solid numbers for both max acceptable resistance and voltage leakage, but nothing for max temp tolerance. Anyone have values they're
Electronics Forum | Thu Sep 06 03:43:00 EDT 2018 | cmchoue
Dear Experts, Have any paper or data talking about the design guideline for avoiding BGA solder bridge? I desire to know the rule(guideline)that compare difference stencil thickness and safe solder design distance (air gap) can avoid bridge.
Electronics Forum | Mon Sep 10 16:55:29 EDT 2018 | wrander1
Hi, I am looking for a Solder jet supplier. Micronic does not support my small dot size LEADED solder paste. I can not use stencil print because my substrate is fragile. I need a run rate of 10,000 dots per hour and 99.99 % dots +- 10% volume. Equip
Electronics Forum | Tue Sep 11 03:59:14 EDT 2018 | spoiltforchoice
Just Essemtec, unless one of the many non-jetting machines used from Nordson or Camalot etc would work for you. Of course just because the paste you want to use is not supported doesn't mean, given your "cost is no object" approach, you can't have so
Electronics Forum | Wed Jan 23 10:54:07 EST 2019 | nathanmcdonough
As Josh hinted, the majority of jet valve manufacturers aren't in the business of making machines. It's usually down to other companies (such as MYCRONIC) to integrate the JET valves into usable machinery, and besides MYCRONIC I can't think of anyone
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