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Had some very interesting conversations at the IWLPC show last week, as always: one discussion was with my good friend Jeff Schake of

Folks, The adventures of Patty and The Professor continue….. Patty and The Professor agreed to work with two of the local process engineers to develop a plan of attack to try and find the lost

Folks, The adventures of Patty and The Professor continue….. Patty was staring out the window of her new office. She had just been made manager of a new department responsible for corporate

So far the meeting with The Professor had proven very valuable John thought.He was anxious to hear the other suggestions The Professor had. The Professor began to speak.“Change-overs are what

The continuation of The Professor’s second visit to ACME…… “Well what should we do Professor?” John said weakly. “Clearly, not shut the line down over the lunch

Folks, Business was good at ACME. Even in these challenging times, the company’s three assembly lines could not keep up with demand. John, the manger of the assembly lines, decided to request

Once the flux has been formulated and scaled up it then must be mixed with solder powder. The mixing procedure and equipment must be capable of providing a homogenous product batch after batch after

The second main ingredient in solder paste is the flux (vehicle). Flux is a very complex group of chemicals/materials that must be able to do a number of things, some of which must happen

Eutectic Gold Tin (AuSn) with a composition of 80Au20Sn is a unique material. This particular alloy of gold tin (AuSn) is considered a solder because it has a melting temperature of 280ºC, which

Much to the surprise of the SnPb and SAC alloy consuming world, there are a number of alloys available in solder paste, each with their own unique melting points and soldering and mechanical

Materials to be used in packaging of high power semiconductor devices are often chosen by their coefficient of thermal expansion, or

Folks, Recently, I ran into The Professor. He graciously agreed to an interview. The following is the discussion from our meeting. Note: I was a student and mentee of his in the ‘70s, hence he is

After you've reflowed solder in contact with a flux, you're always left with a certain amount of flux residue. There are no clear industry guidelines on how you refer to the residue, and new

In this report by the National Renewable Energy Laboratory (NREL), ITO (indium tin oxide) is proven to be more resistant to moisture than aluminum doped ZnO

The binary eutectic alloy of bismuth and tin (Bi/Sn) is well suited for many low temperature applications due to its melting point of 138°C, but the alloy is known for being rather brittle for a

Folks The Professor’s adventure continues: The Professor continued, “Your chipshooter is “the Herbie” in your process…” “That’s it!” a confident

We've had some questions about using liquid metal or indium alloysliquid at room temperature containing indium and gallium, and their reaction to stainless steel. Many scientistsare actively

… and we're back now with the real situation of solder powder size and its effect on solder paste rheology. Size distribution – Real solder powder is not monodisperse (single

Folks, The day of the line balancing telecom with AJAX had arrived and Patty was nervous.She had a feeling that the meeting might be contentious. She felt some relief that The Professor would be

This week Eric Bastow offers a series of 3 entries to explain the basics of water soluble solder paste: “All these product names generally refer to a type of solder paste that leaves behind a

Folks, The adventoures of The Professor continue: In contemplating the events that transpired in the 9 months since The Professor's last visit, Patty had to chuckle.John, her boss, received