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The use of gold layers deposited onto nickel is standard in many industries, from DRAMmemory module edge connectors, to electrical test probe contacts, to power semiconductor die metallizations and

Generically, a phase change material is one which will store or release energy when it changes phase from solid to liquid or liquid to solid.According to this generic classification, there are 4

Folks, While at SMTAI a few weeks ago, I ran into Patty.She agreed to sit down for an interview.Here it is. Dr. Ron (DR): Patty, it’s great to see you here at SMTAI.Congratulations on your

As a supplier of electronics materials, Indium Corporation is constantly faced with customer requests for “halogen-free” (HF) soldering fluxes and associated materials. This is an interesting

If you’re a reader of this blog, you most likely deal with solder paste, flux, or some other messy material. How can you keep these materials off of you working surfaces? Step 1) Clean before

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