BGA Red Dye Penetrant Testing
Ok, so it happened again. Another urgent request was brought to me for action. This time it was a customer who had performed a Red Dye Penetration......
Ok, so it happened again. Another urgent request was brought to me for action. This time it was a customer who had performed a Red Dye Penetration......
Okay, this has no use for semiconductor packaging that I know of, but it is a neat trick that I discovered in the lab a couple days ago. ......
Have you ever had to hand-place solder washer preforms on the pins of a connector and found it to be very labor intensive? Indium Corporation has a pr...
When considering the choice of flux for preforms, in addition to factoring in the amount of flux required on a preform, the type of flux is also impor...
There is a significant push in the electronics industry to produce “halogen-free” products in order to be more environmentally friendly. ...
Why doesn’t my solder flow? The most common issue preventing good solder wetting on a substrate is oxidation. All metals are prone to some level...
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...
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 ...
A great Indium Knowledge Base question came from a customer last week for “recommendations on solder paste height versus component pitch…&...
In a past entry, I discussed the characteristic formation of surface oxides on indium and the various methods by which to remove these to achieve a so...
We received a call today from a customer that had tested the halide content of their board and reflowed solder paste, without components, using Ion Ch...
For my first entry, I’d like to say a word about the differences between Halogen-Free and Halide-Free, for both fluxes and solder pastes. The ha...