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我们收到了一些关于使用液态金属或铟合金液（室温下含有铟和镓的液体）以及它们与不锈钢反应的问题。许多科学家正在积极

… 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

I was asked by a customer (who I consider a friend), if I had any information about formic

A well-respected colleague asked this week if the metal loading of type '4' solder powder in a paste was lower than that for type '3' because the particles were smaller. The

Dr. Andy Mackie recently put together a model to determine the probability that a componentcan besuccessfully dipped in solder paste or

A recent blog posting on Metroblogs titled, "Tin Whiskers sound harmless, don't they?" left me shaking my head regarding the association which is often made between Pb-Free Solder and

A colleague in California was on the phone last week: "We need a flux with greater activity!" He said. Choking down comments like "Maybe we can take it jogging next time you're in

…and we’re back with more nitrogen and inert soldering myths.Part I of this post can be found here. Myth 6: “I turned on the nitrogen flow, so my oven is now inerted”Fact: It

In my twenty years in the electronics manufacturing industry, I have heard a lot of claims made about the use of nitrogen in inerted soldering processes: many of them completely

As a discussion point (read "please feel free to disagree – that's what the comments section is for"), 96.5%Sn/3.5%Ag is NOT the most well suited pb-free alloy for tabbing. I know

Folks, the adventures of The Professor continue……… So far the meeting with The Professor had proven very valuable John thought.He was anxious to hear the other suggestions that The

Bus ribbon is a very specialized interconnect for photovoltaic modules. Much like tabbing ribbon, bus ribbon is made of a copper ribbon or flat wire which is coated in solder. The solder protects the

You may notice that many of the solar grade fluxes and solder pastes are designated 'no-clean'. This classification is used to describe a flux or flux vehicle that does not need to be removed

Fact: To achieve a strong, reliable solder joint, it is important to remove all oxides from the substrate as well as the solder. Generally this is done using a compatible flux. Reality: Sometimes

Folks, Two weeks passed quickly and The Professor returned to ACME. Patty met him at the door. “Professor, it’s great to see you,” Patty said with enthusiasm. “We collected

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

In previous posts, we have mentioned soldering to gold, but never discussed the unique processing aspects related to this. Soldering to copper is straight-forward.It is done all the time and the

Folks, In teaching process optimization and failure analysis, one of the most helpful concepts is understanding he difference between common cause and special cause defects. A special cause defect,