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Page 22


www.us- tech.com The Seven Habits of Highly Effective Solderers By Bob Doetzer, President, Circuit Technology, Inc. I


n my 20+ years of working with the IPC — Association Connect- ing Electronics Industries as a


trainer at a master training center, I have seen just about everything re- lated to soldering. Both good and bad, difficult applications and easy ones, I’ve seen it all. What I’ve learned is when soldering or rework- ing a PCB, there are certain habits or skills that separate the rockstar from the average technician.


Have the right tools. This seems obvious, but I have seen it violated over and over — and not just at small companies with limited budgets. I have seen big companies (I won’t name names) suffer this affliction as well. You need the right tool for the job. Af- ter all, changing the oil in your car is- n’t difficult, but if the only tool you have is a hammer, it won’t end well. The same is true for soldering


and reworking PCBs. Do you only have an old solder iron? You need more tools. How about a good, well- maintained desolder tool? Hot air pencil? Thermal tweezer? These are all essential tools for high-reliability soldering and rework for various ap- plications. Invest in the right tools and the results can be amazing.


Be a student of the game. This al- so seems obvious, but we rarely take


Regularly attending soldering


training classes is an excellent way to keep up with the newest techniques.


sometimes saying out loud), “I’ve been soldering for 10 years. I could teach this class.” There is nothing more gratify-


ing than to hear that same person at the end of the class say, “This was a


sufficient time to “sharpen our axe.” We have trained thousands of people over the years and many of them start the class thinking (and even


fantastic class. I never realized how much I didn’t know!” Techniques such as drag soldering, bridge fill and others are new favorites of al- most everyone that goes through a training class. Our industry changes so quickly. Don’t just do today what you did yesterday. Evolve with the industry, learn new techniques and don’t be a dinosaur. Dyan Reagan, global sales at


Weller Tools, a leading soldering technology company, agrees with this tip. “To be successful, you must keep pace with the industry. Be ready to constantly move for- ward with new ideas and tech- nologies, because what works to- day may not work next week,” she says. “However, while staying up- dated with current technologies is important, it is just as important to keep your quality level high. If quality slips, not only is the oper- ator at greater risk of being hurt, but also your product may have more defects, which could have detri- mental results.”


throughput and decrease defects is to take the time to put the correct tip in the iron. And, with today’s quick- change cartridge tips, it can usually be replaced and up to solder process temperature in about 10 seconds.


Mellow yellow. Take it slow and easy when soldering. Don’t try to sol-


October, 2019


Weller’s WT2M with WXMP iron tip, a highly flexible, compact soldering and rework station.


Use the correct tip. Too often I see people using the tip that is in an iron or desolder tool just because the tip was already in there. It is really hard to change a tip? The single simplest way to increase quality, increase


der too quickly. There is a definite optimal time to dwell on the solder joint to create the optimal inter- metallic bond. Soldering too quickly might just mean you’re turning out more defects. Related to that, be sure to use the right temperature and pressure


Continued on page 26


See at SMTA Guadalajara, Booth 602


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