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Science of Soldering©


Soldering is the heart of electronics manufacturing. Inspection, touchup, rework and failures exist only because of defective soldering. Those costs have put many companies out of business and driven the migration of electronics manufacturing to cheap labor countries.

J-STD-001 and A-610 Training Don't Work Anymore

So why don't companies give operators, technicians and engineers the process knowledge to do the job right the first time and eliminate the need for inspection, touchup and rework? Why don't we teach people how to produce perfect soldering? Why pay for training programs that consist entirely of memorizing pictures of acceptable connections without providing the process knowledge needed to make those connections? Why settle for expensive A-610 and J-STD-001 training that takes employees away from work for up to a week without making them more productive or increasing product reliability?

Training That Really Works

More than 35 years ago, we decided to create a soldering course that would provide the process knowledge required to ensure perfect soldering. Instead of days spent memorizing pictures of solder connections, our students would learn through experiments, demonstrations, and troubleshooting process problems along with thorough videos, discussions and workbook exercises.

And, because many people have limited formal education, the course for operators and technicians would need to be understandable regardless of education (or native language) while engineering classes could be more detailed.

Science of Soldering©


J-STD-001 and A-610 training

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Science of Soldering©

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Soldering is a science not an art, so we call the course Science of Soldering©. Using hands-on experiments, demonstrations, process troubleshooting exercises and videos, the curriculum provides thorough explanations of the forces that determine soldering outcomes, including:

  • The differences between soldering and gluing
  • Why most "soldering" was actually a type of welding and why it matters
    • Tin and tin/lead component surfaces melt during "soldering" but most lead-free component surfaces do not melt
    • The "soldering" practices used for decades only work if the component surfaces melt
    • Soldering lead-free component surfaces requires extra process steps
    • The arrival of lead-free components affects everyone even those who do not use lead-free solder
  • Intermetallics
  • Wetting and wetting forces
  • Oxides, oxidation and deoxidation
  • Solderability
    • Solderability defined
    • Why the J-STD-002 solderability standard is dangerously wrong
    • Solderability of different component and PCB surfaces
    • Challenges resulting from use of lead-free components
    • Solderability management
  • Flux
    • What it does
    • Ingredients
    • Types of flux
    • Acidity, ionic contamination and effects on reliability
    • "No clean" fluxes:
      • The real meaning of "no clean"
      • The difference between "no clean" and "low residue"
      • Why "no clean" on the label may not be true
    • Cleaning challenges
    • Why flux selection is the first step in defining the soldering process
    • Why flux-cored wire solder is not suitable for soldering
  • Surface cleanliness
  • Solders
    • Types
    • Leaded vs. lead-free
    • Why lead-free soldering is not  more difficult than using leaded solder
  • Heat
    • At soldering iron temperatures, solder can cover oxides and contaminants giving the appearance of a properly soldered connection without an actual connection
    • Most component failures are caused by overheating during hand soldering; the damage occurs inside the component and can't be seen
    • Why the most common method of soldering causes damage
    • Our unique method for preventing overheating of components

What Our Clients Say

Real Words From Real People

 I learned more in a day and a half of the Science of Soldering© class than I did in two weeks of soldering class given by the Navy.

Patrick M. Schweiger

Supplier Quality Engineer

LORD Corporation, Erie, PA

Science of Soldering© is the best value for the dollar I have encountered in the last thirty years.

Robert Khaleel

Lockheed Martin

Sandy, UT

Quite simply, Science of Soldering© increases product reliability and reduces costs.

Jesse Austin

Manufacturing Engineer/Six Sigma Black Belt

Micro Motion Inc., Boulder, CO

Everyone here did enjoy the classes. They all raved about it.

Wilson White

Senior Supplier Quality Manager


Jacksonville, FL

I learned more in two days than I learned in 25 years as a soldering technician.

Mike Riley

Senior Engineering Technician

TriQuint Semiconductor

Hillsboro, OR

I have been involved in electronics for over 30 years and now realise that so much of what I had previously been told was wrong and potentially damaging to the components. I particularly enjoyed the teaching style which did not rely on just presenting us with information but led us to discovering the information for ourselves. It was a fun and enjoyable course and the level of student participation in the learning process was amongst the best I have witnessed.

Chris Collier-Woods

Supplier Process Engineer

Safran Power UK

Pitstone, Buckingham, LU7 9GT, England

As a US Air Force certified aircraft welder, I learned the process of soldering in 1990 and through subsequent 20+ years of experience and training, and *PC seminars, I thought I had learned everything there was to know about it...I was wrong.

Science of Soldering© wowed me and our technical team with its practical, comprehensive approach and truly unique insights into the soldering process. We are now in the process of updating all of our soldering process specs  to reflect our new knowledge. This is NOT *PC certification/training! That’s not what we need.

Science of Soldering© stands out, among the many programs that I’ve evaluated. I highly recommend this hands-on program for any GE facility/supplier, worldwide, who solders and experiences failures/latent-failures/defects and has struggled to find the true root-cause.

Floyd Backes

Lean Leader/Process Engineering Manager

GE Inspection Technologies

Skaneateles, NY

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