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QFN Test Failures Caused by Flux
A test engineer claims that test failures are due to flux residue between terminations that affects the capacitance at the joints. Is this a valid claim?
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Test Probe Problems After Pin-In-Paste
We are having test probe contact issues with our Pin-In-Paste process. Should all the flux vaporize off in the reflow process? Any suggestions?
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Ask the Experts
Hot Air Solder 0201s and 01005s
We are struggling to solder and rework small parts - 0201s and 01005s. I have been using a small nozzle hot air solder rework station with adjustable air flow.
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Ask the Experts
Conformal Coating in Nitrogen Environment
We operate a conformal coat machine using nitrogen. We are thinking of changing it back to air for cost reasons, what are the pros and cons?
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Ask the Experts
LED Component Shift During Reflow
What can be the root cause of SMT LED Component Shift during reflow?
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Ask the Experts
Contaminated Joints Cause an Assembly to Fail RoHS Compliance
Can a few contaminated solder joints cause an entire assembly to fail? Some of the joints were cross-contaminated with leaded solder.
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Mixed Process Solder Joint Appearance, Smooth or Grainy?
We are using RoHS components that are placed using tin/lead solder paste and soldered in oven using a tin/lead reflow profile. What should we expect?
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Ask the Experts
Wave Soldering System Nitrogen Use
How can I calculate the amount of nitrogen used in my wave soldering system?
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Ask the Experts
Conformal Coating Recommendation
We are developing an outdoor LED module. The product needs a 5 year service life. What type of conformal coating do you suggest?
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Ask the Experts
0201 Pick & Place Nozzle Plugging
Our stencil vendor is recommending the same aperture size going to a .004" think stencil. I am concerned about reducing the volume by 20%.
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Ask the Experts << Page 1 of 34 >>