I Make House Calls
If you need me to troubleshoot your ball attach process, PoP process, flip-chip assembly process, or die-attach process, I’d be happy to come an...
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Flip Chip Epoxy Flux
Just in case you haven’t heard of epoxy flux yet, let me fill you in. Epoxy flux is what I call a “super no-clean” flux. A no-c...
Transfer Efficiency 2: Solder Paste Print Tolerances
For the second half of Solder Paste Transfer Efficiency, I would like to talk about tolerances and the Rule of 10% Standard Deviation (σ). From ...
Solder Mask Controls Interconnects
The shape of your solder joint below a flip-chip or BGA is controlled by the surface tension of the alloy, the activity of flux used, the tension or c...
Design Options for Metal Thermal Interface Materials in LEDs
With the Strategies in Light show just behind us, I thought it a good time to discuss a little further the use of metal thermal interface materials......
Indium Corporation Wall Chart
Do you have a 2’ x 3’ area on the wall of your office or cubical for the latest new and improved Indium Corporation Wall Chart? a......
Circuitnet Performs Lead-Free Usage Poll: About 40% of Respondent's Lines are Lead-Free
Folks, The team at Circuitnet has performed a poll on lead-free line usage. They asked the question: As we enter 2008, what percentage of your product...
What to Expect When Stencil Printing Flux
Stencil printing flux is easy if you know what to expect before attempting it. It is easier than stencil printing solder paste in most common apertur...
Why Thin-Film Solar Cells are Here to Stay
Apart from independence from silicon, thin-film solar cells have several advantages. On perfect day and perfect conditions crystalline silicon solar c...
How We Fell In Love
Okay, I’ll be honest – I think it’s pretty cheesy to write an entry on Valentines Day regarding my passion for the industry. I will,...
Ball Attach Surface Finishes
Just incase you were wondering, here are the wetting results you can expect when soldering Pb-free spheres to different surface finishes. The chart sh...