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Conclusion to: Profits are Down. Could a Cheaper Solder Paste Have Caused it?

Folks, Let's see how Ivy University grad student Maria Gonzales is handling her assignment to find the lost profits a Liberty Elecronics&hell...

Profits are Down. Could a Cheaper Solder Paste Have Caused It?

Folks, Let's see how Professor Patty is doing, Professor Patty Coleman stared out of her office window at the waning remnants of snow on Ivy Unive...

Book Review: Chip War

Folks, It gives me pause to think that I have lived through most of the electronics revolution. One of my first memories is that my family, along with...

Metal Mass Fraction Calculator

Folks, Can it be almost 20 years ago that I developed the solder alloy density calculator? I have received more requests on this topic than any other....

Wave Solder Calculator

Folks, I remember in 1994 (can it be 30 years ago?) that a colleague commented that in 5 years wave soldering would go away. Well 30 years have passed...

How to Calculated Equivalent Cp and Cpk when Spec Limits are Not Symmetrical

Folks, Cp and Cpk assume symmetrical specification limits with respect to the target. However, sometimes specification limits are not symmetrical. As ...

Join Me at SMTA PanPac 2024

SMTA PanPac is a unique experience. In addition to the obvious draw of Hawaii in January, the conference tends to have thought leaders in the electron...

Elon Musk Biography Conclusion

Folks, Let’s look in on Ivy University Professor Patty Coleman as she chats with John Archer about Walter Isaacson’s biography of Elon Mus...

Professor Patty Coleman on The Biography of Elon Musk

Folks, It has been a very long time since we checked in on Patty. Let's see how she is doing......

Second Post on Thinking Metric

Folks, Continuing our post on thinking metric: I am 5 feet 10 inches tall or 70 inches. There are 2.54 centimeters per inch, so 2 times 70 = 140, then...

Do We in the US "Think Metric?"

Folks, here are some tips and tricks for an easy conversion of celcius to farenheit and vice versa......

Using ANOVA to Compare Three or More Solder Pastes for a Metric-Like Transfer Efficiency

An Interview with Professor Patty Coleman....