Selective Soldering Technologies Why Use them Explore!

Selective Soldering Technologies: Why Use them? Explore!

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Selective Soldering Technologies • Thanks to the growing popularity of SMT technology, the new through-hole technology is taking up much less real estate on a PCB assembly. • However, the through-hole pins are still a necessary for many boards, and for that they still need to be soldered. • Since this process can cause some serious distress for the production managers, a number of manufacturers have opted for selective soldering technology as a precise and cost effective way to solder through-hole technology.

Why are People Considering Selective Soldering Method?

• It’s a fact that before the advent of reflow soldering, boards that used to have a high number of through-hole pins usually underwent wave soldering.

• This is a process where a board passes through a solder wave. However, in case of through-hole technology, this posed few problems as the pins could withstand more thermal shock and were much less expensive.

• But on the other hand the SMT packages are more sensitive and expensive and must be soldered in a reflow oven.

• Since through-hole pins cannot be soldered in a reflow oven but needs to be soldered separately, manufactures opted for doing it by hand or through a selective soldering machine.

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Advantages Of Selective Soldering Technologies:

• One of the biggest quality of selective soldering is that in spite of the face that market is now demanding for smaller wired components, it’s still the most efficient and cost-effective method.

This method approaches each solder joint individually and thereby match the individual soldering parameters. • Another fact is that one can use individual product-specific mini dip soldering nozzles which helps to solder several pins or components simultaneously to achieve short cycle times. Selective soldering methods are economically successful in the processes are adapted exactly to the applications and quantities.

Challenges You Might Face With Selective Soldering: In spite of being one of the most convenient methods, like any other soldering processes, selective soldering also has its own set of challenges. Let’s look at them below. ďƒź Since Selective soldering method applies heat to only one place on the board, the present in the solder paste might not activate properly, which might lead to the residue to spread to other parts of the board, creating a complete mess. ďƒź There is another way which can help you prevent the contamination. And that can be achieved by implying or updating existing contamination testers. Another proven method for catching flux migration can be ionic testing which is also used to measure the potentially harmful board conductivity.

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1 Click Smt-Soldering Robot • Address: • Bld 1, Hua Ke Bao Chuang Industry zone • Shi Da Road • DalingShan Town • Guangdong • China • Phone no: +13509673600 • Website: www.1clicksmt-solderingrobot.com